U.S. patent application number 14/776635 was filed with the patent office on 2016-02-18 for therapeutic compounds and compositions.
The applicant listed for this patent is AGIOS PHARMACEUTICALS, INC., Sheldon CAO, Giovanni CIANCHETTA, Janeta POPOVICI-MULLER, Xiaolei WANG, Zhixiong YE, Robert ZAHLER. Invention is credited to Sheldon Cao, Giovanni Cianchetta, Janeta Popovici-Muller, Xiaolei Wang, Zhixiong Ye, Robert Zahler.
Application Number | 20160046579 14/776635 |
Document ID | / |
Family ID | 51535825 |
Filed Date | 2016-02-18 |
United States Patent
Application |
20160046579 |
Kind Code |
A1 |
Cianchetta; Giovanni ; et
al. |
February 18, 2016 |
THERAPEUTIC COMPOUNDS AND COMPOSITIONS
Abstract
Compounds of general formula (I) and compositions comprising
compounds of general formula (I) that modulate pyruvate kinase are
described herein. Also described herein are methods of using the
compounds that modulate pyruvate kinase in the treatment of
diseases. ##STR00001##
Inventors: |
Cianchetta; Giovanni;
(Waltham, MA) ; Popovici-Muller; Janeta; (Windham,
NH) ; Zahler; Robert; (Pennington, NJ) ; Cao;
Sheldon; (Fuyang City, CN) ; Wang; Xiaolei;
(Shanghai, CN) ; Ye; Zhixiong; (Beijing,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
CIANCHETTA; Giovanni
POPOVICI-MULLER; Janeta
ZAHLER; Robert
CAO; Sheldon
WANG; Xiaolei
YE; Zhixiong
AGIOS PHARMACEUTICALS, INC. |
Pennington
Fuyang, Zhejiang
Shanghai
Beijing
Cambridge |
NJ
MA |
US
US
US
CN
CN
CN
US |
|
|
Family ID: |
51535825 |
Appl. No.: |
14/776635 |
Filed: |
March 13, 2014 |
PCT Filed: |
March 13, 2014 |
PCT NO: |
PCT/CN2014/000260 |
371 Date: |
September 14, 2015 |
Current U.S.
Class: |
514/80 ; 435/2;
514/249; 514/301; 514/314; 514/320; 514/321; 514/322; 514/323;
514/327; 544/337; 544/353; 546/114; 546/172; 546/196; 546/197;
546/198; 546/199; 546/201; 546/221 |
Current CPC
Class: |
C07D 495/04 20130101;
C07D 513/04 20130101; A61P 35/02 20180101; C07D 405/14 20130101;
C07D 401/14 20130101; C07D 405/12 20130101; C07D 417/12 20130101;
C07D 471/04 20130101; A61P 35/00 20180101; C07D 211/48 20130101;
A61P 7/06 20180101; C07D 211/52 20130101; C07D 401/12 20130101;
C07D 413/12 20130101; C07D 417/14 20130101; C07D 413/14 20130101;
C07F 9/65583 20130101; A61P 43/00 20180101 |
International
Class: |
C07D 211/48 20060101
C07D211/48; C07D 405/12 20060101 C07D405/12; C07D 417/12 20060101
C07D417/12; C07D 401/14 20060101 C07D401/14; C07D 417/14 20060101
C07D417/14; C07F 9/6558 20060101 C07F009/6558; C07D 405/14 20060101
C07D405/14; C07D 413/12 20060101 C07D413/12; C07D 471/04 20060101
C07D471/04; C07D 513/04 20060101 C07D513/04; C07D 413/14 20060101
C07D413/14; C07D 401/12 20060101 C07D401/12; C07D 495/04 20060101
C07D495/04 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 15, 2013 |
CN |
PCT/CN2013/072688 |
Claims
1. A compound of Formula (I): ##STR00839## or a pharmaceutically
acceptable salt thereof, wherein: A is aryl or heteroaryl, wherein
the aryl or heteroaryl is optionally substituted, and the aryl or
heteroaryl is optionally fused to an optionally substituted
carbocyclyl or an optionally substituted heterocyclyl; X is
selected from --NH--S(O).sub.2--, --S(O).sub.2--NH--,
--NH--S(O).sub.2--CH.sub.2--, --CH.sub.2--S(O)--NH--,
--NH--S(O)--CH.sub.2--, --NH--S(O)--, --S(O)--NH--, or
--CH.sub.2--S(O).sub.2--NH--; Y is C(H) or N; provided that no more
than two Y groups are N; R.sup.1a is hydroxyl, --CH.sub.2OH, --CHO,
--CO.sub.2H, --N(R.sup.10a).sub.2, --CO.sub.2--C.sub.1-6 alkyl,
--OP(.dbd.O)(OH).sub.2, or
--OCO.sub.2--CH.sub.2--OP(.dbd.O)(OH).sub.2; R.sup.1b is C.sub.1-8
alkyl optionally substituted with one to four R.sup.5 groups;
C.sub.1-8 alkenyl optionally substituted with one to four R.sup.5
groups; cycloalkyl; heterocycle; aryl; heteroaryl; cycloalkylalkyl;
cycloalkylalkenyl; heterocyclylalkyl; heterocyclylalkenyl; aralkyl;
aralkenyl; heteroaralkyl; heteroaralkenyl; or --OH, with the
proviso that when R.sup.1a is OH, R.sup.1b is not OH; wherein each
cycloalkyl, heterocycle, aryl, heteroaryl, cycloalkylalkyl,
cycloalkylalkenyl, heterocyclylalkyl, heterocyclylalkenyl, aralkyl,
aralkenyl, heteroaralkyl, or heteroaralkenyl is optionally
substituted; each R.sup.2 is independently selected from halo,
alkyl, CN, OH, and alkoxy, wherein said alkyl or alkoxy is
optionally substituted with one to four R.sup.5 groups; or two
adjacent R.sup.2 groups are taken together with the ring atoms they
are attached to form a 5- or 6-membered carbocyclic, aryl,
heterocyclic or heteroaryl ring; each R.sup.4 is independently
selected from halo, alkyl, alkoxy, haloalkyl, haloalkoxy and
hydroxyl; each R.sup.5 is independently selected from halo, OH,
C.sub.1-6 alkoxy, CN, NH.sub.2, --SO.sub.2--C.sub.1-6 alkyl,
--NH(C.sub.1-6 alkyl), and --N(C.sub.1-6 alkyl).sub.2; each
R.sup.10a is independently selected from hydrogen or C.sub.1-6
alkyl; n is 0, 1, 2 or 3; and m is 0, 1 or 2; provided that a
compound of Formula (I) is not the following: (1)
4-[[4-hydroxy-4-(4-methylphenyl)-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; (2)
4-[[4-(4-chlorophenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; (3)
4-[[4-(3-fluorophenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; (4)
4-[[4-(2-fluoro-5-methylphenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thi-
azolyl-benzenesulfonamide; (5)
4-phenyl-1-[4-[(phenylamino)sulfonyl]benzoyl]-4-piperidinecarboxylic
acid methyl ester; (6)
1-[4-[[(2-methylphenyl)amino]sulfonyl]benzoyl]-4-phenyl-4-piperidinecarbo-
xylic acid methyl ester; or (7)
N-(4-fluorophenyl)-4-[[4-hydroxy-4-(methoxymethyl)-1-piperidinyl]carbonyl-
]-benzenesulfonamide.
2. The compound of claim 1, wherein the compound is a compound of
Formula (Ia): ##STR00840##
3. A compound of Formula (Ib): ##STR00841## or a pharmaceutically
acceptable salt thereof, wherein: A is aryl or heteroaryl, wherein
the aryl or heteroaryl is optionally substituted, and the aryl or
heteroaryl is fused to an optionally substituted carbocyclyl or an
optionally substituted heterocyclyl; R.sup.1b is C.sub.1-8 alkyl
optionally substituted with one to four R.sup.5 groups; C.sub.1-8
alkenyl optionally substituted with one to four R.sup.5 groups;
cycloalkyl; heterocycle; aryl; heteroaryl; cycloalkylalkyl;
cycloalkylalkenyl; heterocyclylalkyl; heterocyclylalkenyl; aralkyl;
aralkenyl; heteroaralkyl; heteroaralkenyl; or --OH, with the
proviso that when R.sup.1a is OH, R.sup.1b is not OH; wherein each
cycloalkyl, heterocycle, aryl, heteroaryl, cycloalkylalkyl,
cycloalkylalkenyl, heterocyclylalkyl, heterocyclylalkenyl, aralkyl,
aralkenyl, heteroaralkyl, or heteroaralkenyl is optionally
substituted; each R.sup.2 is independently selected from halo,
alkyl, CN, OH, and alkoxy, wherein said alkyl or alkoxy is
optionally substituted with one to four R.sup.5 groups; or two
adjacent R.sup.2 groups are taken together with the ring atoms they
are attached to form a 5- or 6-membered carbocyclic, aryl,
heterocyclic or heteroaryl ring; each R.sup.4 is independently
selected from halo, alkyl, alkoxy, haloalkyl, haloalkoxy and
hydroxyl; each R.sup.5 is independently selected from halo, OH,
C.sub.1-6 alkoxy, CN, NH.sub.2, --SO.sub.2--C.sub.1-6 alkyl,
--NH(C.sub.1-6 alkyl), and --N(C.sub.1-6 alkyl).sub.2; n is 0, 1, 2
or 3; and m is 0, 1 or 2.
4. The compound of claim 3, wherein A is: ##STR00842##
5. The compound of claim 3, wherein the compound is a compound of
Formula (II): ##STR00843##
6. The compound of claim 3, wherein the compound is a compound of
Formula (III): ##STR00844##
7. The compound of claim 3, wherein the compound is a compound of
Formula (IV): ##STR00845##
8. The compound of claim 3, wherein R.sup.1b is C.sub.1-8 alkyl
optionally substituted with one to four R.sup.5 groups; aryl;
heteroaryl; aralkyl; or heteroaralkyl; wherein each aryl;
heteroaryl; aralkyl; or heteroaralkyl; is optionally
substituted.
9. The compound of claim 8, wherein each aryl; heteroaryl; aralkyl;
or heteroaralkyl is optionally substituted with halo, C.sub.1-6
alkyl, --OH, C.sub.1-6 alkoxy, --CN, --NH.sub.2,
--SO.sub.2--C.sub.1-6 alkyl, --NH(C.sub.1-6 alkyl), --N(C.sub.1-6
alkyl).sub.2, aryl, haloalkyl, or haloalkoxy.
10. The compound of claim 3, wherein R.sup.1b is C.sub.1-8 alkyl
optionally substituted with one to four R.sup.5 groups.
11. The compound of claim 3, wherein R.sup.5 is fluoro, --OH, or
--SO.sub.2--CH.sub.3.
12. The compound of claim 3, wherein R.sup.1b is phenyl, optionally
substituted with chloro, fluoro, bromo, methyl, ethyl, --CN,
difluoromethyl, trifluoromethyl, --OCF.sub.3, --SO.sub.2--CH.sub.3,
or --OCH.sub.3.
13. The compound of claim 1, wherein the compound of Formula (I) is
selected from Compounds 100-529 of Table 1.
14. A pharmaceutical composition comprising a compound of claim 1
or a pharmaceutical acceptable salt thereof and a pharmaceutically
acceptable carrier.
15. A method of modulating PKM2 activity in a subject in need
thereof, the method comprising administering to said subject a
pharmaceutical composition of claim 14.
16. A method of treating a cancer associated with PKM2 activity in
a subject in need thereof, the method comprising administering to
the subject a pharmaceutical composition of claim 14.
17. Use of a pharmaceutical composition of claim 14 in the
manufacture of a medicament for modulating PKM2 activity.
18. Use of a pharmaceutical composition of claim 14 in the
manufacture of a medicament for treating a cancer associated with
PKM2 activity.
19. A method for increasing the lifetime of the red blood cells
(RBCS) in need thereof comprising contacting blood with an
effective amount of (1) a compound of claim 1 or a pharmaceutically
acceptable salt thereof; or (2) a composition of claim 14.
20. The method of claim 19, wherein the compound is added directly
to whole blood or packed cells extracorporeally.
21. The method of claim 19, wherein the pharmaceutical composition
is administered to a subject in need thereof.
22. A method for regulating 2,3-diphosphoglycerate levels in blood
in need thereof comprising contacting blood an effective amount of
(1) a compound of claim 1; or (2) a composition of claim 14.
23. A method for treating hereditary non-spherocytic haemolytic
anemia comprising administering to a subject in need thereof a
therapeutically effective amount of an effective amount of (1) a
compound of claim 1; or (2) a pharmaceutically acceptable
composition of claim 14.
24. A method for treating sickle cell anemia comprising
administering to a subject in need thereof a therapeutically
effective amount of an effective amount of (1) a compound of claim
1; or (2) a pharmaceutically acceptable composition of claim 14.
Description
CLAIM OF PRIORITY
[0001] This application claims priority from International
Application Serial No. PCT/CN2013/072688, filed Mar. 15, 2013 which
is incorporated herein by reference in its entirety.
BACKGROUND OF INVENTION
[0002] Pyruvate kinase deficiency (PKD) is one of the most common
enzyme defects in erythrocytes in human due to autosomal recessive
mutations of the PKLR gene (Zanella, A., et al., Br J Haematol
2005, 130 (1), 11-25). It is also the most frequent enzyme mutation
in the central glycolytic pathway and only second to glucose-6
phosphate dehydrogenase (G6PD) deficiency (Kedar, P., et al., Clin
Genet 2009, 75 (2), 157-62) of the hexose monophosphate shunt.
[0003] Human erythrocytes are unique in that they anucleate when
mature. Immature erythrocytes have nuclei but during early
erythropoiesis prior to becoming circulating reticulocytes they
extrude nuclei as well as other organelles such as mitochondria,
endoplasmic reticulum, and golgi aparatus, in order to make room
for oxygen-carrying hemoglobin. As a result of lacking
mitochondria, mature red blood cells do not utilize any of the
oxygen they transport to economically synthesize adenosine
triphosphate (ATP) as other normal differentiated cells do.
Instead, red blood cells depend entirely on anaerobic glycolysis to
cycle nicotinamide adenine dinucleotide (NAD.sup.+) and to make
ATP, an essential energy source largely used to drive
ATPase-dependent K.sup.+/Na.sup.+ and Ca.sup.2+ pumps, in order to
maintain cell membrane integrity and pliability as they navigate
through blood vessels. In PKD disorder, two major distinctive
metabolic abnormalities are ATP depletion and concomitant increase
of 2,3-diphosphoglycerate consistent with accumulation of upper
glycolytic intermediates. Moreover, one of the consequences of
decreased ATP and pyruvate level is lowered lactate level leading
to inability to regenerate NAD.sup.+ through lactate dehydrogenase
for further use in glycolysis. The lack of ATP disturbs the cation
gradient across the red cell membrane, causing the loss of
potassium and water, which causes cell dehydration, contraction,
and crenation, and leads to premature destruction and diminished
lifetime of the red blood cells (RBCs). Such defective RBCs are
destroyed in the spleen, and excessive hemolysis rate in the spleen
leads to the manifestation of hemolytic anemia. The exact mechanism
by which PKD sequesters newly matured RBCs in the spleen to
effectively shorten overall half-lives of circulating RBCs is not
yet clear, but recent studies suggest that metabolic dysregulation
affects not only cell survival but also the maturation process
resulting in ineffective erythropoiesis (Aizawa, S. et al., Exp
Hematol 2005, 33 (11), 1292-8).
[0004] Pyruvate kinase catalyzes the transfer of a phosphoryl group
from phosphoenolpyruvate (PEP) to ADP, yielding one molecule of
pyruvate and one molecule of ATP. The enzyme has an absolute
requirement for Mg.sup.2+ and K.sup.+ cations to drive catalysis.
PK functions as the last critical step in glycolysis because it is
an essentially irreversible reaction under physiological
conditions. In addition to its role of synthesizing one of the two
ATP molecules from the metabolism of glucose to pyruvate, pyruvate
kinase is also an important cellular metabolism regulator. It
controls the carbon flux in lower-glycolysis to provide key
metabolite intermediates to feed biosynthetic processes, such as
pentose-phosphate pathway among others, in maintaining healthy
cellular metabolism. Because of these critical functions, pyruvate
kinase is tightly controlled at both gene expression and enzymatic
allostere levels. In mammals, fully activated pyruvate kinase
exists as a tetrameric enzyme. Four different isozymes (M1, M2, L
and R) are expressed from two separate genes. Erythrocyte-specific
isozyme PKR is expressed from the PKLR gene ("L gene") located on
chromosome 1q21. This same gene also encodes the PKL isozyme, which
is predominately expressed in the liver. PKLR consists of 12 exons
with exon 1 is erythroid-specific whereas exon 2 is liver-specific.
The two other mammalian isozymes PKM1 and PKM2 are produced from
the PKM gene ("M gene") by alternative splicing events controlled
by hnRNP proteins. The PKM2 isozyme is expressed in fetal tissues
and in adult proliferating cells such as cancer cells. Both PKR and
PKM2 are in fact expressed in proerythroblasts. However, upon
erythroid differentiation and maturation, PKM2 gradually is
decreased in expression and progressively replaced by PKR in mature
erythrocytes.
[0005] Clinically, hereditary PKR deficiency disorder manifests as
non-spherocytic hemolytic anemia. The clinical severity of this
disorder range from no observable symptoms in fully-compensated
hemolysis to potentially fatal severe anemia requiring chronic
transfusions and/or splenectomy at early development or during
physiological stress or serious infections. Most affected
individuals who are asymptomatic, paradoxically due to enhanced
oxygen-transfer capacity, do not require any treatment. However,
for some of the most severe cases, while extremely rare
population-wise with estimated prevalence of 51 per million
(Beutler, E. Blood 2000, 95 (11), 3585-8), there is no
disease-modifying treatment available for these patients other than
palliative care (Tavazzi, D. et al., Pediatr Ann 2008, 37 (5),
303-10). These hereditary non-spherocytic haemolytic anemia (HNSHA)
patients present a clear unmet medical need.
[0006] Heterogenous genetic mutations in PKR lead to dysregulation
of its catalytic activity. Since the initial cloning of PKR and
report of a single point mutation Thr.sup.384>Met associated
with a HNSHA patient (Kanno, H. et al., Proc Natl Acad Sci USA
1991, 88 (18), 8218-21), there are now nearly 200 different
reported mutations associated with this disease reported worldwide
(Zanella, A. et al., Br J Haematol 2005, 130 (1), 11-25; Kedar, P.,
et al., Clin Genet 2009, 75 (2), 157-62; Fermo, E. et al., Br J
Haematol 2005, 129 (6), 839-46; Pissard, S. et al., Br J Haematol
2006, 133 (6), 683-9). Although these mutations represent wide
range genetic lesions that include deletional and transcriptional
or translational abnormalities, by far the most common type is
missense mutation in the coding region that one way or another
affects conserved residues within domains that are structurally
important for optimal catalytic function of PKR. The pattern of
mutation prevalence seems to be unevenly distributed toward
specific ethnic backgrounds. For instance, the most frequent codon
substitutions reported for North American and European patients
appear to be Arg.sup.486>Trp and Arg.sup.510>Gln, while
mutations Arg.sup.479>His, Arg.sup.490>Trp and
Asp.sup.331>Gly were more frequently found in Asian patients
(Kedar, P., et al., Clin Genet 2009, 75 (2), 157-62).
[0007] Cancer cells rely primarily on glycolysis to generate
cellular energy and biochemical intermediates for biosynthesis of
lipids and nucleotides, while the majority of "normal" cells in
adult tissues utilize aerobic respiration. This fundamental
difference in cellular metabolism between cancer cells and normal
cells, termed the Warburg Effect, has been exploited for diagnostic
purposes, but has not yet been exploited for therapeutic
benefit.
[0008] Pyruvate kinase (PK) is a metabolic enzyme that converts
phosphoenolpyruvate to pyruvate during glycolysis. Four PK isoforms
exist in mammals: the L and R isoforms are expressed in liver and
red blood cells, the M1 isoform is expressed in most adult tissues,
and the M2 isoform is a splice variant of M1 expressed during
embryonic development. All tumor cells exclusively express the
embryonic M2 isoform. A well-known difference between the M1 and M2
isoforms of PK is that M2 is a low-activity enzyme that relies on
allosteric activation by the upstream glycolytic intermediate,
fructose-1,6-bisphosphate (FBP), whereas M1 is a constitutively
active enzyme.
[0009] All tumor cells exclusively express the embryonic M2 isoform
of pyruvate kinase, suggesting PKM2 as a potential target for
cancer therapy. PKM2 is also expressed in adipose tissue and
activated T-cells. Phosphotyrosine peptide binding to PKM2 leads to
a dissociation of FBP from PKM2 and conformational changes of PKM2
from an active, tetrameric form to an inactive form. Compounds that
bind to PKM2 and lock the enzyme in the active confirmation will
lead to the loss of allosteric control of PKM2 needed for shunting
biochemical intermediates from glycolysis into biosynthesis of
nucleotides and lipids. Thus, the activation of PKM2 can inhibit
the growth and proliferation of cancer cells, activated immune
cells, and fat cells. Activation of PKM2 may therefore be effective
in the treatment of cancer, obesity, diabetes, autoimmune
conditions, and proliferation-dependent diseases, e.g., benign
prostatic hyperplasia (BPH).
SUMMARY OF INVENTION
[0010] Described herein are compounds that activate pyruvate kinase
and pharmaceutically acceptable salts, solvates, and hydrates
thereof, for example, compounds that activate PKR and/or PKM2.
[0011] Also provided are pharmaceutical compositions comprising a
compound provided herewith and the use of such compositions in
methods of treating diseases and conditions that are related to
pyruvate kinase function, e.g., PKR function, and/or PKM2 function
(including, e.g., cancer, diabetes, obesity, autoimmune disorders,
and benign prostatic hyperplasia (BPH)).
[0012] In one embodiment, provided herein is a compound of Formula
(I):
##STR00002##
or a pharmaceutically acceptable salt thereof, wherein:
[0013] A is aryl or heteroaryl, wherein the aryl or heteroaryl is
optionally substituted, and the aryl or heteroaryl is optionally
fused to an optionally substituted carbocyclyl or an optionally
substituted heterocyclyl;
[0014] X is selected from --NH--S(O).sub.2--, --S(O).sub.2--NH--,
--NH--S(O).sub.2--CH.sub.2--, --CH.sub.2--S(O)--NH--,
--NH--S(O)--CH.sub.2--, --NH--S(O)--, --S(O)--NH--, or
--CH.sub.2--S(O).sub.2--NH--;
[0015] Y is C(H) or N; provided that no more than two Y groups are
N;
[0016] R.sup.1a is hydroxyl, --CH.sub.2OH, --CHO, --CO.sub.2H,
--N(R.sup.10a).sub.2, --CO.sub.2--C.sub.1-6 alkyl,
--OP(.dbd.O)(OH).sub.2, or
--OCO.sub.2--CH.sub.2--OP(.dbd.O)(OH).sub.2;
[0017] R.sup.1b is C.sub.1-8 alkyl optionally substituted with one
to four R.sup.5 groups; C.sub.1-8 alkenyl optionally substituted
with one to four R.sup.5 groups; cycloalkyl; heterocycle; aryl;
heteroaryl; cycloalkylalkyl; cycloalkylalkenyl; heterocyclylalkyl;
heterocyclylalkenyl; aralkyl; aralkenyl; heteroaralkyl;
heteroaralkenyl; or --OH, with the proviso that when R.sup.1a is
OH, R.sup.1b is not OH; wherein each cycloalkyl, heterocycle, aryl,
heteroaryl, cycloalkylalkyl, cycloalkylalkenyl, heterocyclylalkyl,
heterocyclylalkenyl, aralkyl, aralkenyl, heteroaralkyl, or
heteroaralkenyl is optionally substituted;
[0018] each R.sup.2 is independently selected from halo, alkyl, CN,
OH, and alkoxy, wherein said alkyl or alkoxy is optionally
substituted with one to four R.sup.5 groups; or
[0019] two adjacent R.sup.2 groups are taken together with the ring
atoms they are attached to form a 5- or 6-membered carbocyclic,
aryl, heterocyclic or heteroaryl ring;
[0020] each R.sup.4 is independently selected from halo, alkyl,
alkoxy, haloalkyl, haloalkoxy and hydroxyl;
[0021] each R.sup.5 is independently selected from halo, OH,
C.sub.1-6 alkoxy, CN, NH.sub.2, --SO.sub.2--C.sub.1-6 alkyl,
--NH(C.sub.1-6 alkyl), and --N(C.sub.1-6 alkyl).sub.2;
[0022] each R.sup.10a is independently selected from hydrogen or
C.sub.1-6 alkyl;
[0023] n is 0, 1, 2 or 3; and
[0024] m is 0, 1 or 2; provided that a compound of Formula (I) is
not the following: [0025] (1)
4-[[4-hydroxy-4-(4-methylphenyl)-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; [0026] (2)
4-[[4-(4-chlorophenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; [0027] (3)
4-[[4-(3-fluorophenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; [0028] (4)
4-[[4-(2-fluoro-5-methylphenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thi-
azolyl-benzenesulfonamide; [0029] (5)
4-phenyl-1-[4-[(phenylamino)sulfonyl]benzoyl]-4-piperidinecarboxylic
acid methyl ester; [0030] (6)
1-[4-[[(2-methylphenyl)amino]sulfonyl]benzoyl]-4-phenyl-4-piperidinecarbo-
xylic acid methyl ester; or [0031] (7)
N-(4-fluorophenyl)-4-[[4-hydroxy-4-(methoxymethyl)-1-piperidinyl]carbonyl-
]-benzenesulfonamide.
[0032] In another embodiment, provided is a method for treating or
preventing (e.g., treating) a disease, condition or disorder as
described herein comprising administering a compound provided
herein, a pharmaceutically acceptable salt, solvate or hydrate
thereof, or pharmaceutical composition thereof.
[0033] In another embodiment, provided is a method for increasing
lifetime of the red blood cells (RBCs) in need thereof comprising
contacting blood with an effective amount of (1) a compound
disclosed herein or a pharmaceutically acceptable salt, solvate or
hydrate thereof; (2) a composition comprising a compound disclosed
herein or a salt, solvate or hydrate thereof and a carrier; or (3)
a pharmaceutical composition comprising a compound disclosed herein
or a pharmaceutically acceptable salt, solvate or hydrate thereof,
and a pharmaceutically acceptable carrier.
[0034] In another embodiment, provided is a method for regulating
2,3-diphosphoglycerate levels in blood in need thereof comprising
contacting blood with an effective amount of (1) a compound
disclosed herein or a pharmaceutically acceptable salt, solvate or
hydrate thereof; (2) a composition comprising a compound disclosed
herein or a salt, solvate or hydrate thereof and a carrier; or (3)
a pharmaceutical composition comprising a compound disclosed herein
or a pharmaceutically acceptable salt, solvate or hydrate thereof,
and a pharmaceutically acceptable carrier.
[0035] In another embodiment, provided is a method for treating
hereditary non-spherocytic haemolytic anemia comprising
administering to a subject in need thereof a therapeutically
effective amount of (1) a compound disclosed herein or a
pharmaceutically acceptable salt, solvate or hydrate thereof; (2) a
pharmaceutical composition comprising a compound disclosed herein
or a pharmaceutically acceptable salt, solvate or hydrate thereof,
and a pharmaceutically acceptable carrier.
[0036] In another embodiment, provided is a method for treating
sickle cell anemia comprising administering to a subject in need
thereof a therapeutically effective amount of (1) a compound
disclosed herein or a pharmaceutically acceptable salt, solvate or
hydrate thereof; (2) a pharmaceutical composition comprising a
compound disclosed herein or a pharmaceutically acceptable salt,
solvate or hydrate thereof, and a pharmaceutically acceptable
carrier.
[0037] In another embodiment, provided is a method for treating
hemolytic anemia (e.g., chronic hemolytic anemia caused by
phosphoglycerate kinase deficiency, Blood Cells Mol Dis, 2011;
46(3):206) comprising administering to a subject in need thereof a
therapeutically effective amount of (1) a compound disclosed herein
or a pharmaceutically acceptable salt, solvate or hydrate thereof;
(2) a pharmaceutical composition comprising a compound disclosed
herein or a pharmaceutically acceptable salt, solvate or hydrate
thereof, and a pharmaceutically acceptable carrier.
[0038] In another embodiment, provided is a method for treating
diseases or conditions that are associated with increased
2,3-diphosphoglycerate levels (e.g., liver diseases (Am J
Gastroenterol, 1987; 82(12):1283) and Parkinson's (J. Neurol,
Neurosurg, and Psychiatry 1976, 39:952) comprising administering to
a subject in need thereof a therapeutically effective amount of (1)
a compound disclosed herein or a pharmaceutically acceptable salt,
solvate or hydrate thereof; (2) a pharmaceutical composition
comprising a compound disclosed herein or a pharmaceutically
acceptable salt, solvate or hydrate thereof, and a pharmaceutically
acceptable carrier.
[0039] In another embodiment, provided is a method for treating
thalassemia (e.g., beta-thalassemia), hereditary spherocytosis,
hereditary elliptocytosis, abetalipoproteinemia (or
Bassen-Kornzweig syndrome), paroxysmal nocturnal hemoglobinuria,
acquired hemolytic anemia (e.g., congenital anemias (e.g.,
enzymopathies)), or anemia of chronic diseases comprising
administering to a subject in need thereof a therapeutically
effective amount of (1) a compound disclosed herein or a
pharmaceutically acceptable salt, solvate or hydrate thereof; (2) a
pharmaceutical composition comprising a compound disclosed herein
or a pharmaceutically acceptable salt, solvate or hydrate thereof,
and a pharmaceutically acceptable carrier.
[0040] In another embodiment, provided is a method for treating
diseases or conditions that are associated with increased
2,3-diphosphoglycerate levels (e.g., liver diseases (Am J
Gastroenterol, 1987; 82(12):1283) and Parkinson's (J. Neurol,
Neurosurg, and Psychiatry 1976, 39:952) comprising administering to
a subject in need thereof a therapeutically effective amount of (1)
a compound disclosed herein or a pharmaceutically acceptable salt,
solvate or hydrate thereof; (2) a pharmaceutical composition
comprising a compound disclosed herein or a pharmaceutically
acceptable salt, solvate or hydrate thereof, and a pharmaceutically
acceptable carrier.
[0041] Compounds and compositions described herein are activators
of PKR mutants having lower activities compared to the wild type,
thus are useful for methods of the present invention. Such
mutations in PKR can affect enzyme activity (catalytic efficiency),
regulatory properties (modulation by fructose bisphosphate
(FBP)/ATP), and/or thermostability of the enzyme. Examples of such
mutations are described in Valentini et al, JBC 2002. Some examples
of the mutants that are activated by the compounds described herein
include G332S, G364D, T384M, G37E, R479H, R479K, R486W, R532W,
R510Q, and R490W. Without being bound by theory, compounds
described herein affect the activities of PKR mutants by activating
FBP non-responsive PKR mutants, restoring thermostability to
mutants with decreased stability, or restoring catalytic efficiency
to impaired mutants. The activating activity of the present
compounds against PKR mutants may be tested following a method
described in Examples 2-5. Compounds described herein are also
activators of wild type PKR.
[0042] In an embodiment, to increase the lifetime of the red blood
cells, a compound, composition or pharmaceutical composition
described herein is added directly to whole blood or packed cells
extracorporeally or be provided to the subject (e.g., the patient)
directly (e.g., by i.p., i.v., i.m., oral, inhalation (aerosolized
delivery), transdermal, sublingual and other delivery routes).
Without being bound by theory, compounds described herein increase
the lifetime of the RBCs, thus counteract aging of stored blood, by
impacting the rate of release of 2,3-DPG from the blood. A decrease
in the level of 2, 3-DPG concentration induces a leftward shift of
the oxygen-hemoglobin dissociation curve and shifts the allosteric
equilibribrium to the R, or oxygenated state, thus producing a
therapeutic inhibition of the intracellular polymerization that
underlies sickling by increasing oxygen affinity due to the 2,3-DPG
depletion, thereby stabilizing the more soluble oxy-hemoglobin.
Accordingly, in one embodiment, compounds and pharmaceutical
compositions described herein are useful as antisickling agents. In
another embodiment, to regulate 2,3-diphosphoglycerate, a compound,
composition or pharmaceutical composition described herein is added
directly to whole blood or packed cells extracorporeally or be
provided to the subject (e.g., the patient) directly (e.g., by
i.p., i.v., i.m., oral, inhalation (aerosolized delivery),
transdermal, sublingual and other delivery routes).
[0043] In another embodiment, provided is a method of increasing
the level of PKM2 activity and/or glycolysis in a patient in need
thereof. The method comprises the step of administering an
effective amount of a compound described herein to the patient in
need thereof, thereby increasing the level of PKM2 activity and/or
glycolysis in the patient. In some embodiments, a compound or a
composition described herein is used to maintain PKM2 in its active
conformation or activate pyruvate kinase activity in proliferating
cells as a means to divert glucose metabolites into catabolic
rather than anabolic processes in the patient.
[0044] In another embodiment, provided is a method of inhibiting
cell proliferation in a patient in need thereof. The method
comprises the step of administering an effective amount of a
compound described herein to the patient in need thereof, thereby
inhibiting cell proliferation in the patient. In one aspect this
method can inhibit growth of a transformed cell, more specifically
a cancer cell. In another aspect the method generally inhibits
growth of a PKM2-dependent cell that undergoes aerobic
glycolysis.
[0045] In another embodiment, provided is a method of treating a
patient suffering from or susceptible to a disease or disorder
associated with reduced PKM2 activity or reduced glycolysis in a
patient in need thereof. The method comprises the step of
administering an effective amount of a compound described herein to
the patient in need thereof, thereby treating, preventing or
ameliorating the disease or disorder in the patient. In certain
embodiment the compound described herein is provided in a
pharmaceutical composition. In certain embodiments, the method
includes the step of identifying or selecting a patient who would
benefit from activation of PKM2 prior to treatment. Identifying or
selecting such a patient can be on the basis of the level of PKM2
activity in a cell of the patient. In one aspect, the selected
patient is suffering from or susceptible to unwanted cell growth or
proliferation, e.g., cancer, obesity, diabetes, atherosclerosis,
restenosis, and autoimmune diseases. In another aspect, the
selected patient is suffering from a cancer associated with PKM2
function.
[0046] In another embodiment, the compound described herein is
administered at a dosage and frequency sufficient to increase
lactate production or oxidative phosphorylation.
DETAILED DESCRIPTION
[0047] The details of construction and the arrangement of
components set forth in the following description or illustrated in
the drawings are not meant to be limiting. Embodiments can be
practiced or carried out in various ways. Also, the phraseology and
terminology used herein is for the purpose of description and
should not be regarded as limiting. The use of "including,"
"comprising," or "having," "containing", "involving", and
variations thereof herein, is meant to encompass the items listed
thereafter and equivalents thereof as well as additional items.
DEFINITIONS
[0048] The term "halo" or "halogen" refers to any radical of
fluorine, chlorine, bromine or iodine.
[0049] The term "alkyl" refers to a monovalent hydrocarbon chain
that may be a straight chain or branched chain, containing the
indicated number of carbon atoms. For example, C.sub.1-C.sub.12
alkyl indicates that the group may have from 1 to 12 (inclusive)
carbon atoms in it. In certain aspects, the term "alkyl" refers to
a monovalent hydrocarbon chain that may be a straight chain or
branched chain, containing 1 to 6 carbon atoms. In other aspects,
the term "alkyl" refers to a monovalent hydrocarbon chain that may
be a straight chain or branched chain, containing 1 to 4 carbon
atoms.
[0050] The term "haloalkyl" refers to an alkyl in which one or more
hydrogen atoms are replaced by halo, and includes alkyl moieties in
which all hydrogens have been replaced by halo (e.g.,
perfluoroalkyl). The term "haloalkoxy" refers to an alkoxy in which
one or more hydrogen atoms are replaced by halo.
[0051] The term "alkenyl" refers to a monovalent straight or
branched hydrocarbon chain containing 2-12 carbon atoms and having
one or more double bonds. Examples of alkenyl groups include, but
are not limited to, allyl, propenyl, 2-butenyl, 3-hexenyl and
3-octenyl groups. One of the double bond carbons may optionally be
the point of attachment of the alkenyl substituent. In certain
aspects, the term "alkenyl" refers to a monovalent straight or
branched hydrocarbon chain containing 2-6 carbon atoms and having
one or more double bonds. In other aspects, the term "alkenyl"
refers to a monovalent straight or branched hydrocarbon chain
containing 2-4 carbon atoms and having one or more double
bonds.
[0052] The term "alkoxy" refers to an --O-alkyl radical.
[0053] The term "aryl" refers to a monocyclic, bicyclic, or
tricyclic aromatic hydrocarbon ring system. Examples of aryl
moieties include, but are not limited to, phenyl, naphthyl, and
anthracenyl.
[0054] The terms "arylalkyl" or "aralkyl" refer to an alkyl moiety
in which an alkyl hydrogen atom is replaced by an aryl group.
Aralkyl includes groups in which more than one hydrogen atom has
been replaced by an aryl group. Examples of "arylalkyl" or
"aralkyl" include benzyl, 2-phenylethyl, 3-phenylpropyl,
9-fluorenyl, benzhydryl, and trityl groups.
[0055] The term "carbocyclyl" refers to a non-aromatic, monocyclic,
bicyclic, or tricyclic hydrocarbon ring system. Carbocyclyl groups
include fully saturated ring systems (e.g., cycloalkyls), and
partially saturated ring systems.
[0056] The term "cycloalkyl" or "carbocyclyl" refers to saturated
or unsaturated cyclic, bicyclic, tricyclic, or polycyclic
non-aromatic hydrocarbon groups having 3 to 12 carbons. Examples of
cycloalkyl moieties include, but are not limited to, cyclopropyl,
cyclohexyl, methylcyclohexyl, adamantyl, and norbornyl.
[0057] The term "heteroaryl" refers to a fully aromatic 5-8
membered monocyclic, 8-12 membered bicyclic, or 11-14 membered
tricyclic ring system having 1-3 heteroatoms if monocyclic, 1-6
heteroatoms if bicyclic, or 1-9 heteroatoms if tricyclic, said
heteroatoms selected from O, N, or S (e.g., carbon atoms and 1-3,
1-6, or 1-9 heteroatoms selected independently from N, O, or S if
monocyclic, bicyclic, or tricyclic, respectively).
[0058] The term "heterocyclyl" refers to a saturated or
unsaturated, 3-10 membered non-aromatic monocyclic, 8-12 membered
non-aromatic bicyclic, or 11-14 membered non-aromatic tricyclic
ring system having 1-3 heteroatoms if monocyclic, 1-6 heteroatoms
if bicyclic, or 1-9 heteroatoms if tricyclic, said heteroatoms
selected from O, N, or S (e.g., carbon atoms and 1-3, 1-6, or 1-9
heteroatoms of N, O, or S if monocyclic, bicyclic, or tricyclic,
respectively). The heteroatom may optionally be the point of
attachment of the heterocyclyl substituent. Examples of
heterocyclyl include, but are not limited to, tetrahydrofuranyl,
tetrahydropyranyl, piperidinyl, morpholino, pyrrolinyl,
pyrimidinyl, and pyrrolidinyl.
[0059] Bicyclic and tricyclic ring systems containing one or more
heteroatoms and both aromatic and non-aromatic rings are considered
to be heterocyclyl groups according to the present definition. Such
bicyclic or tricyclic ring systems are considered to be an aryl or
a heteroaryl fused to a carbocyclyl or heterocyclyl, where the ring
bound to the rest of the molecule is required to be aromatic.
[0060] The terms "heteroarylalkyl" and "heteroaralkyl", as used
herein, refers to an alkyl group substituted with a heteroaryl
group.
[0061] The term "heterocyclylalkyl", as used herein, refers to an
alkyl group substituted with a heterocyclyl group.
[0062] All ring systems (i.e, aryl, heteroaryl, carbocyclyl,
cycloalkyl, heterocyclyl, etc.) or ring system portions of groups
(e.g., the aryl portion of an aralkyl group) are optionally
substituted at one or more substitutable carbon atoms with
substituents independently selected from: halo, --C.ident.N,
C.sub.1-C.sub.4 alkyl, .dbd.O, C.sub.3-7 cycloalkyl, C.sub.1-6
alkyl, --OH, --O--(C.sub.1-6 alkyl), --SO.sub.2--(C.sub.1-6 alkyl),
--(C.sub.1-4 alkyl)-N(R.sup..smallcircle.)(R.sup..smallcircle.),
--N(R.sup..smallcircle.)(R.sup..smallcircle.), --O--(C.sub.1-4
alkyl)-N(R.sup..smallcircle.)(R.sup..smallcircle.),
--C(O)--N(R.sup..smallcircle.)(R.sup..smallcircle.), --(C.sub.1-4
alkyl)-C(O)--N(R.sup..smallcircle.)R.sup..smallcircle.),
--O-(heteroaryl), --O-(heterocycle), --O-phenyl, -heteroaryl,
-heterocycle, and -phenyl, wherein: [0063] each R.sup..smallcircle.
is independently selected from hydrogen, and --C.sub.1-4 alkyl; or
[0064] two R.sup..smallcircle.s are taken together with the
nitrogen atom to which they are bound to form a 4- to 8-membered
saturated heterocycle optionally comprising one additional
heteroatom selected from N, S, S(.dbd.O), S(.dbd.O).sub.2, and O,
[0065] any alkyl substituent is optionally further substituted with
one or more of --OH, --O--(C.sub.14 alkyl), halo, --NH.sub.2,
--NH(C.sub.1-4 alkyl), or --N(C.sub.1-4 alkyl).sub.2; and [0066]
any carbon atom on a phenyl, cycloalkyl, heteroaryl or heterocycle
substituent is optionally further substituted with one or more of
--(C.sub.1-C.sub.4 alkyl), --(C.sub.1-4 fluoroalkyl), --OH,
--O--(C.sub.1-4 alkyl), --O--(C.sub.1-4 fluoroalkyl), halo,
--NH.sub.2, --NH(C.sub.1-4 alkyl), or --N(C.sub.1-4
alkyl).sub.2.
[0067] All heterocyclyl ring systems (and any heterocyclyl
substituents on any ring system) are optionally substituted on one
or more any substitutable nitrogen atom with --C.sub.1-4 alkyl, or
fluoro-substituted C.sub.1-4 alkyl.
[0068] The term "substituted" refers to the replacement of a
hydrogen atom by another group.
[0069] The term "oxo" refers to an oxygen atom, which forms a
carbonyl when attached to carbon, an N-oxide when attached to
nitrogen, and a sulfoxide or sulfone when attached to sulfur.
[0070] The term "selective" in association with a PKM2 activator is
meant at least 2-fold, 3-fold, 4-fold, 5-fold, 6-fold, or 10-fold
greater activation of PKM2 than PKM1.
[0071] The term "activator" of pyruvate kinase R as used herein
means an agent that (measurably) increases the activity of wild
type pyruvate kinase R (wtPKR) or causes wild type pyruvate kinase
R (wt PKR) activity to increase to a level that is greater than wt
PKR's basal levels of activity or an agent that (measurably)
increases the activity of a mutant pyruvate kinase R (mPKR) or
causes mutant pyruvate kinase R (mPKR) activity to increase to a
level that is greater than that mutant PKR's basal levels of
activity, for examples, to a level that is 20%, 40%, 50%, 60%, 70%,
80%, 90% or 100% of the activity of wild type PKR.
[0072] The term "activator" of pyruvate kinase M2 as used herein
means an agent that (measurably) increases the activity of PKM2 or
causes PKM2 activity to increase to a level that is greater than
PKM2's basal levels of activity. For example, the activator may
mimic the effect caused by a natural ligand (e.g., FBP). The
activator effect caused by a compound provided herein may be to the
same, or to a greater, or to a lesser extent than the activating
effect caused by a natural ligand, but the same type of effect is
caused. A compound provided herein can be evaluated to determine if
it is an activator by measuring either directly or indirectly the
activity of the pyruvate kinase when subjected to said compound.
The activity of PKM2 can be measured, for example, by monitoring
the concentration of a substrate such as ATP or NADH.
[0073] The abbreviations Me, Et, Ph, Tf, Nf, Ts, Ms represent
methyl, ethyl, phenyl, trifluoromethanesulfonyl,
nonafluorobutanesulfonyl, p-toluenesulfonyl and methanesulfonyl,
respectively. A more comprehensive list of the abbreviations
utilized by organic chemists of ordinary skill in the art appears
in the first issue of each volume of the Journal of Organic
Chemistry; this list is typically presented in a table entitled
Standard List of Abbreviations. The abbreviations contained in said
list, and all abbreviations utilized by organic chemists of
ordinary skill in the art are hereby incorporated by reference.
Compounds
[0074] Provided herein is a compound of Formula (I) or a
pharmaceutically acceptable salt, solvate or hydrate thereof as
described above in the Summary of the Invention, e.g, useful for
activating wild type PKR and/or various mutant PKRs such as those
mutants described herein, and/or useful for selectively activating
PKM2.
[0075] In one embodiment, provided herein is a compound of Formula
(I):
##STR00003##
or a pharmaceutically acceptable salt thereof, wherein:
[0076] A is aryl or heteroaryl, wherein the aryl or heteroaryl is
optionally substituted, and the aryl or heteroaryl is optionally
fused to an optionally substituted carbocyclyl or an optionally
substituted heterocyclyl;
[0077] X is selected from --NH--S(O).sub.2--, --S(O).sub.2--NH--,
--NH--S(O).sub.2--CH.sub.2--, --CH.sub.2--S(O)--NH--,
--NH--S(O)--CH.sub.2--, --NH--S(O)--, --S(O)--NH--, or
--CH.sub.2--S(O).sub.2--NH--;
[0078] Y is C(H) or N; provided that no more than two Y groups are
N;
[0079] R.sup.1a is hydroxyl, --CH.sub.2OH, --CHO, --CO.sub.2H,
--N(R.sup.10a).sub.2, --CO.sub.2--C.sub.1-6 alkyl,
--OP(.dbd.O)(OH).sub.2, or
--OCO.sub.2--CH.sub.2--OP(.dbd.O)(OH).sub.2;
[0080] R.sup.1b is C.sub.1-8 alkyl optionally substituted with one
to four R.sup.5 groups; C.sub.1-8 alkenyl optionally substituted
with one to four R.sup.5 groups; cycloalkyl; heterocycle; aryl;
heteroaryl; cycloalkylalkyl; cycloalkylalkenyl; heterocyclylalkyl;
heterocyclylalkenyl; aralkyl; aralkenyl; heteroaralkyl;
heteroaralkenyl; or --OH, with the proviso that when R.sup.1a is
OH, R.sup.1b is not OH; wherein each cycloalkyl, heterocycle, aryl,
heteroaryl, cycloalkylalkyl, cycloalkylalkenyl, heterocyclylalkyl,
heterocyclylalkenyl, aralkyl, aralkenyl, heteroaralkyl, or
heteroaralkenyl is optionally substituted;
[0081] each R.sup.2 is independently selected from halo, alkyl, CN,
OH, and alkoxy, wherein said alkyl or alkoxy is optionally
substituted with one to four R.sup.5 groups; or
[0082] two adjacent R.sup.2 groups are taken together with the ring
atoms they are attached to form a 5- or 6-membered carbocyclic,
aryl, heterocyclic or heteroaryl ring;
[0083] each R.sup.4 is independently selected from halo, alkyl,
alkoxy, haloalkyl, haloalkoxy and hydroxyl;
[0084] each R.sup.5 is independently selected from halo, OH,
C.sub.1-6 alkoxy, CN, NH.sub.2, --SO.sub.2--C.sub.1-6 alkyl,
--NH(C.sub.1-6 alkyl), and --N(C.sub.1-6 alkyl).sub.2;
[0085] each R.sup.10a is independently selected from hydrogen or
C.sub.1-6 alkyl;
[0086] n is 0, 1, 2 or 3; and
[0087] m is 0, 1 or 2; provided that a compound of Formula (I) is
not the following: [0088] (1)
4-[[4-hydroxy-4-(4-methylphenyl)-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; [0089] (2)
4-[[4-(4-chlorophenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; [0090] (3)
4-[[4-(3-fluorophenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; [0091] (4)
4-[[4-(2-fluoro-5-methylphenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thi-
azolyl-benzenesulfonamide; [0092] (5)
4-phenyl-1-[4-[(phenylamino)sulfonyl]benzoyl]-4-piperidinecarboxylic
acid methyl ester; [0093] (6)
1-[4-[[(2-methylphenyl)amino]sulfonyl]benzoyl]-4-phenyl-4-piperidinecarbo-
xylic acid methyl ester; or [0094] (7)
N-(4-fluorophenyl)-4-[[4-hydroxy-4-(methoxymethyl)-1-piperidinyl]carbonyl-
]-benzenesulfonamide. In one embodiment, provided herein is a
compound of Formula (I):
##STR00004##
[0094] or a pharmaceutically acceptable salt thereof, wherein:
[0095] A is aryl or heteroaryl, wherein the aryl or heteroaryl is
optionally substituted, and the aryl or heteroaryl is optionally
fused to an optionally substituted carbocyclyl or an optionally
substituted heterocyclyl;
[0096] X is selected from --NH--S(O).sub.2--,
--NH--S(O).sub.2--CH.sub.2--, --CH.sub.2--S(O)--NH-- or
--CH.sub.2--S(O).sub.2--NH--;
[0097] Y is C(H) or N; provided that no more than two Y groups are
N;
[0098] R.sup.1a is hydroxyl, --CH.sub.2OH, --CHO, --CO.sub.2H or
--CO.sub.2--C.sub.1-6 alkyl;
[0099] R.sup.1b is C.sub.1-8 alkyl optionally substituted with one
to four R.sup.5 groups; C.sub.1-8 alkenyl optionally substituted
with one to four R.sup.5 groups; cycloalkyl; heterocycle; aryl;
heteroaryl; cycloalkylalkyl; cycloalkylalkenyl; heterocyclylalkyl;
heterocyclylalkenyl; aralkyl; aralkenyl; heteroaralkyl;
heteroaralkenyl; or --OH, with the proviso that when R.sup.1a is
OH, R.sup.1b is not OH; wherein each cycloalkyl, heterocycle, aryl,
heteroaryl, cycloalkylalkyl, cycloalkylalkenyl, heterocyclylalkyl,
heterocyclylalkenyl, aralkyl, aralkenyl, heteroaralkyl, or
heteroaralkenyl is optionally substituted;
[0100] each R.sup.2 is independently selected from halo, alkyl, CN,
OH, and alkoxy, wherein said alkyl or alkoxy is optionally
substituted with one to four R.sup.5 groups; or
[0101] two adjacent R.sup.2 groups are taken together with the ring
atoms they are attached to form a 5- or 6-membered carbocyclic,
aryl, heterocyclic or heteroaryl ring;
[0102] each R.sup.4 is independently selected from halo, alkyl,
alkoxy, haloalkyl, haloalkoxy and hydroxyl;
[0103] each R.sup.5 is independently selected from halo, OH,
C.sub.1-6 alkoxy, CN, NH.sub.2, --SO.sub.2--C.sub.1-6 alkyl,
--NH(C.sub.1-6 alkyl), and --N(C.sub.1-6 alkyl).sub.2;
[0104] n is 0, 1, 2 or 3; and
[0105] m is 0, 1 or 2; provided that a compound of Formula (I) is
not the following: [0106] (1)
4-[[4-hydroxy-4-(4-methylphenyl)-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; [0107] (2)
4-[[4-(4-chlorophenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; [0108] (3)
4-[[4-(3-fluorophenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thiazolyl-be-
nzenesulfonamide; [0109] (4)
4-[[4-(2-fluoro-5-methylphenyl)-4-hydroxy-1-piperidinyl]carbonyl]-N-2-thi-
azolyl-benzenesulfonamide; [0110] (5)
4-phenyl-1-[4-[(phenylamino)sulfonyl]benzoyl]-4-piperidinecarboxylic
acid methyl ester; [0111] (6)
1-[4-[[(2-methylphenyl)amino]sulfonyl]benzoyl]-4-phenyl-4-piperidinecarbo-
xylic acid methyl ester; [0112] (7)
1-[4-[methyl[(4-methylphenyl)sulfonyl]amino]benzoyl]-4-phenyl-4-piperidin-
ecarboxylic acid; [0113] (8)
1-[4-[(methylphenylamino)sulfonyl]benzoyl]-4-phenyl-4-piperidinecarboxyli-
c acid; [0114] (9)
1-[4-[(cyclopropylamino)sulfonyl]benzoyl]-4-phenyl-4-piperidinecarboxylic
acid; or [0115] (10)
4-phenyl-1-[4-[[(2-thienylmethyl)amino]sulfonyl]benzoyl]-4-piperidinecarb-
oxylic acid methyl ester.
[0116] In one embodiment, provided is a compound of formula (I),
wherein m is 1. In some aspects of these embodiments, R.sup.4 is
hydroxyl.
[0117] In one embodiment, provided is a compound of formula (I),
wherein m is 0 (i.e., there are no R.sup.4 substituents on the
piperidinyl ring) and R.sup.1a is hydroxyl, the compound having
formula (Ia):
##STR00005##
(wherein each Y is CH), or a pharmaceutically acceptable salt
thereof, wherein A, X, R.sup.1b, R.sup.2 and n are as described for
formula (I).
[0118] In certain aspects of formula (I) or (Ia), n is 0. In
certain aspects of formula (I) or (Ia), n is 1. In a more specific
aspect, R.sup.2 is C.sub.1-6 alkyl (e.g., methyl). In another more
specific aspect, R.sup.2 is C.sub.1-6 alkoxy (e.g., methoxy). In
another more specific aspect, R.sup.2 is halo (e.g., fluoro or
chloro). In another more specific aspect, R.sup.2 is C.sub.4
haloalkoxy (e.g., trifluoromethoxy or difluoromethoxy). In another
more specific aspect, R.sup.2 is cyano.
[0119] In certain aspects of formula (I) or (Ia), n is 2. In a more
specific aspect, two R.sup.2 moieties, taken together with the
atoms to which they are attached, form an optionally substituted
cyclyl (e.g., unsubstituted phenyl, unsubstituted isothiazolyl). In
another more specific aspect, each R.sup.2 moiety is halo (e.g.,
fluoro).
[0120] In certain aspects of formula (I) or (Ia), A is an
optionally substituted monocyclic aryl. In a more specific aspect,
A is an optionally substituted phenyl (e.g., 2,3-dichlorophenyl,
2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, 3-cyanophenyl,
4-cyanophenyl, 2-trifluoromethylphenyl, 3-trifluoromethylphenyl,
4-trifluoromethylphenyl, 3-trifluoromethoxyphenyl,
4-trifluoromethoxyphenyl, 2,3-diamino-4-fluorophenyl). In certain
aspects of formula (I) or (Ia), A is an optionally substituted
bicyclic aryl. In a more specific aspect, A is an optionally
substituted naphthyl (e.g., unsubstituted naphthyl).
[0121] In certain aspects of formula (I) or (Ia), A is an
optionally substituted monocyclic heteroaryl. In a more specific
aspect, A is an optionally substituted pyridyl (e.g., an optionally
substituted 3-pyridyl or optionally substituted 2-pyridyl). In an
even more specific aspect, A is unsubstituted 3-pyridyl. In an even
more specific aspect, A is unsubstituted 2-pyridyl.
[0122] In certain aspects of formula (I) or (Ia), A is an
optionally substituted bicyclic heteroaryl. In a more specific
aspect, A is an optionally substituted quinolin-8-yl (e.g.,
unsubstituted quinolin-8-yl). In another more specific aspect, A is
substituted quinolin-8-yl (e.g., 2-fluoroquinolin-8-yl,
3-fluoroquinolin-8-yl, 5-fluoroquinolin-8-yl or
6-fluoroquinolin-8-yl). In another more specific aspect, A is an
optionally substituted quinolin-3-yl (e.g., unsubstituted
quinolin-3-yl). In another more specific aspect, A is an optionally
substituted quinolin-5-yl (e.g., unsubstituted quinolin-5-yl or
2-fluoroquinolin-5-yl). In another more specific aspect, A is an
optionally substituted isoquinolin-5-yl (e.g., unsubstituted
isoquinolin-5-yl). In another more specific aspect, A is an
optionally substituted quinolin-5-yl (e.g., unsubstituted
quinolin-5-yl). In another more specific aspect, A is substituted
quinolin-5-yl (e.g., 2-fluoroquinolin-5-yl). In another more
specific aspect, A is an optionally substituted
benzo[1,2,5]oxadiazole (e.g., unsubstituted
benzo[1,2,5]oxadiazole). In another more specific aspect, A is an
optionally substituted quinoxalin-5-yl (e.g., unsubstituted
quinoxalin-5-yl or 8-hydroxyquinoxalin-5-yl). In another more
specific aspect, A is substituted quinoxalin-5-yl (e.g.,
8-fluoroquinoxalin-5-yl or 8-hydroxyquinoxalin-5-yl). In another
more specific aspect, A is an optionally substituted chromanyl
(e.g., chroman-8-yl). In another more specific aspect, A is an
optionally substituted 2,3-dihydrobenzo[b][1,4]dioxinyl (e.g.,
unsubstituted 2,3-dihydrobenzo[b][1,4]dioxin-5-yl). In another more
specific aspect, A is an optionally substituted
benzo[d]thiazol-4-yl (e.g., unsubstituted benzo[d]thiazol-4-yl,
6-fluorobenzo[d]thiazol-4-yl, 7-fluorobenzo[d]thiazol-4-yl,
2-methylbenzo[d]thiazol-4-yl or
2-amino-6-fluorobenzo[d]thiazol-4-yl). In another more specific
aspect, A is an optionally substituted benzofuranyl (e.g.,
benzofuran-7-yl). In another more specific aspect, A is an
optionally substituted benzo[1,2,5]thiadiazol-5-yl (e.g.,
unsubstituted benzo[1,2,5]thiadiazol-5-yl). In another more
specific aspect, A is an optionally substituted
benzo[1,2,5]thiadiazol-4-yl (e.g., unsubstituted
benzo[1,2,5]thiadiazol-4-yl). In another more specific aspect, A is
an optionally substituted benzo[c]thiazolyl (e.g., unsubstituted
benzo[c]thiazol-4-yl). In another more specific aspect, A is an
optionally substituted 1,2,3,4-tetrahydroquinolin-8-yl (e.g.,
unsubstituted 1,2,3,4-tetrahydroquinolin-8-yl). In another more
specific aspect, A is an optionally substituted
1H-indol-2(7aH)-on-5-yl (e.g., 1-methyl-1H-indol-2(7aH)-on-5-yl).
In another more specific aspect, A is an optionally substituted
thieno[3,2-b]pyridin-3-yl (e.g., unsubstituted
thieno[3,2-b]pyridin-3-yl). In another more specific aspect, A is
an optionally substituted benzo[1,3]dioxol-5-yl (e.g.,
unsubstituted benzo[1,3]dioxol-5-yl or
2,2-difluorobenzo[1,3]dioxol-5-yl). In another more specific
aspect, A is an optionally substituted benzo[d]thiazol-7-yl (e.g.,
unsubstituted benzo[d]thiazol-7-yl or 6-methylbenzo[d]thiazol-7-yl
or 6-fluorobenzo[d]thiazol-7-yl). In another more specific aspect,
A is an optionally substituted cinnolin-8-yl (e.g., unsubstituted
cinnolin-8-yl). In another more specific aspect, A is an optionally
substituted imidazo[1,2-a]pyridine-8-yl (e.g., unsubstituted
imidazo[1,2-a]pyridine-8-yl). In another more specific aspect, A is
an optionally substituted thiazolo[5,4-b]pyridin-7-yl (e.g.,
unsubstituted thiazolo[5,4-b]pyridine-7-yl). In another more
specific aspect, A is an optionally substituted
1H-pyrrolo[3,2-b]pyridin-3-yl (e.g., unsubstituted
1H-pyrrolo[3,2-b]pyridin-3-yl). In another more specific aspect, A
is an optionally substituted 1H-pyrrolo[2,3-b]pyridin-1-yl (e.g.,
unsubstituted 1H-pyrrolo[2,3-b]pyridin-1-yl). In another more
specific aspect, A is an optionally substituted
benzo[d]oxazol-2(3H)-on-6-yl (e.g.,
3-methylbenzo[d]oxazol-2(3H)-on-6-yl). In another more specific
aspect, A is an optionally substituted benzo[c]isothiazol-7-yl
(e.g., unsubstituted benzo[c]isothiazol-7-yl).
[0123] In certain aspects of formula (I), (Ia), or (Ib) A is:
##STR00006## ##STR00007##
[0124] In another embodiment, provided herein is a compound of
Formula (Ib):
##STR00008##
or a pharmaceutically acceptable salt thereof, wherein:
[0125] A is aryl or heteroaryl, wherein the aryl or heteroaryl is
optionally substituted, and the aryl or heteroaryl is fused to an
optionally substituted carbocyclyl or an optionally substituted
heterocyclyl;
[0126] R.sup.1b is C.sub.1-8 alkyl optionally substituted with one
to four R.sup.5 groups; C.sub.1-8 alkenyl optionally substituted
with one to four R.sup.5 groups; cycloalkyl; heterocycle; aryl;
heteroaryl; cycloalkylalkyl; cycloalkylalkenyl; heterocyclylalkyl;
heterocyclylalkenyl; aralkyl; aralkenyl; heteroaralkyl;
heteroaralkenyl; or --OH, with the proviso that when R.sup.1a is
OH, R.sup.1b is not OH; wherein each cycloalkyl, heterocycle, aryl,
heteroaryl, cycloalkylalkyl, cycloalkylalkenyl, heterocyclylalkyl,
heterocyclylalkenyl, aralkyl, aralkenyl, heteroaralkyl, or
heteroaralkenyl is optionally substituted;
[0127] each R.sup.2 is independently selected from halo, alkyl, CN,
OH, and alkoxy, wherein said alkyl or alkoxy is optionally
substituted with one to four R.sup.5 groups; or
[0128] two adjacent R.sup.2 groups are taken together with the ring
atoms they are attached to form a 5- or 6-membered carbocyclic,
aryl, heterocyclic or heteroaryl ring;
[0129] each R.sup.4 is independently selected from halo, alkyl,
alkoxy, haloalkyl, haloalkoxy and hydroxyl;
[0130] each R.sup.5 is independently selected from halo, OH,
C.sub.1-6 alkoxy, CN, NH.sub.2, --SO.sub.2--C.sub.1-6 alkyl,
--NH(C.sub.1-6 alkyl), and --N(C.sub.1-6 alkyl).sub.2;
[0131] n is 0, 1, 2 or 3; and
[0132] m is 0, 1 or 2.
[0133] In certain aspects of formula (I), (Ia), or (Ib) A is:
##STR00009##
[0134] In certain aspects of formula (I) or (Ia), X is
--NH--S(O).sub.2--, --NH--S(O).sub.2--CH.sub.2--, or
--CH.sub.2--S(O).sub.2--NH--. In certain aspects of formula (I) or
(Ia), X is --NH--S(O).sub.2--. In an even more specific aspect of
formula (I) or (Ib), A is an optionally substituted quinolin-8-yl
and X is --NH--S(O).sub.2-- and the compound has the structure set
forth in formula (II) or a pharmaceutically acceptable salt
thereof:
##STR00010##
wherein R.sup.1b, R.sup.2, R.sup.4, m and n are as defined for
Formula (I).
[0135] In an even more specific aspect of formula (Ia) or (Ib), A
is an optionally substituted quinolin-8-yl and X is
--NH--S(O).sub.2-- and the compound has the structure set forth in
formula (IIa) or a pharmaceutically acceptable salt thereof:
##STR00011##
wherein R.sup.1b, R.sup.2, and n are as defined for Formula
(Ia).
[0136] In certain aspects of formula (I) or (Ia), X is
--NH--S(O).sub.2--, --NH--S(O).sub.2--CH.sub.2--, or
--CH.sub.2--S(O).sub.2--NH--. In certain aspects of formula (I) or
(Ia), X is --NH--S(O).sub.2--. In an even more specific aspect of
formula (I) or (Ib), A is an optionally substituted quinoxalin-5-yl
and X is --NH--S(O).sub.2-- and the compound has the structure set
forth in formula (III) or a pharmaceutically acceptable salt
thereof:
##STR00012##
wherein R.sup.1b, R.sup.2, R.sup.4, m and n are as defined for
Formula (I).
[0137] In an even more specific aspect of formula (Ia), A is an
optionally substituted quinoxalin-5-yl and X is --NH--S(O).sub.2--
and the compound has the structure set forth in formula (IIIa) or a
pharmaceutically acceptable salt thereof:
##STR00013##
wherein R.sup.1b, R.sup.2, and n are as defined for Formula
(Ia).
[0138] In certain aspects of formula (I) or (Ia), X is
--NH--S(O).sub.2--, --NH--S(O).sub.2--CH.sub.2--, or
--CH.sub.2--S(O).sub.2--NH--. In certain aspects of formula (I) or
(Ia), X is --NH--S(O).sub.2--. In an even more specific aspect of
formula (I) or (Ib), A is an optionally substituted
benzo[d]thiazol-4-yl and X is --NH--S(O).sub.2-- and the compound
has the structure set forth in formula (III) or a pharmaceutically
acceptable salt thereof:
##STR00014##
wherein R.sup.1b, R.sup.2, R.sup.4, m and n are as defined for
Formula (I).
[0139] In an even more specific aspect of formula (Ia), A is an
optionally substituted benzo[d]thiazol-4-yl and X is
--NH--S(O).sub.2-- and the compound has the structure set forth in
formula (IIIa) or a pharmaceutically acceptable salt thereof:
##STR00015##
wherein R.sup.1b, R.sup.2, and n are as defined for Formula
(Ia).
[0140] In certain embodiments of formula (I) or (Ia), A is an
optionally substituted monocyclic aryl (e.g., optionally
substituted phenyl). In some embodiments, A is 4-chlorophenyl. In
some embodiments, A is 3-cyanophenyl. In some embodiments, A is
2-chlorophenyl. In some embodiments, A is 4-cyanophenyl. In some
embodiments, A is 2-trifluoromethylphenyl. In some embodiments, A
is 4-trifluoromethylphenyl. In some embodiments, A is
3-trifluoromethylphenyl. In some embodiments, A is 3-chlorophenyl.
In some embodiments, A is 4-trifluoromethoxyphenyl. In some
embodiments, A is 2,3-dichlorophenyl. In some embodiments, A is
2,4-difluorophenyl. In some embodiments, A is
3-trifluoromethoxyphenyl.
[0141] In certain embodiments of formula (I) or (Ia), A is phenyl
substituted with two substituents on adjacent carbons which form an
optionally substituted heterocyclyl or carbocyclyl ring (e.g.,
resulting in A comprising a bicycle).
[0142] In some embodiments of formula (I), R.sup.1a is hydroxyl. In
some embodiments of formula (I), R.sup.1a is --C(O)H. In some
embodiments of formula (I), R.sup.1a is --CH.sub.2OH. In some
embodiments of formula (I), R.sup.1a is --CO.sub.2--C.sub.1-6 alkyl
(e.g., --CO.sub.2Et). In some embodiments of formula (I), R.sup.1a
is --CO.sub.2H. In some embodiments of formula (I), R.sup.1a is
--N(R.sup.10a).sub.2. In some embodiments of formula (I), R.sup.1a
is --OP(.dbd.O)(OH).sub.2. In some embodiments of formula (I),
R.sup.1a is --OCO.sub.2--CH.sub.2--OP(.dbd.O)(OH).sub.2.
[0143] In some embodiments of formula (I), (Ia), (Ib), (II), (IIa),
(III), (IIIc), (IV), or (IVa), R.sup.1b is cycloalkyl, heterocycle,
aryl, heteroaryl, cycloalkylalkyl, cycloalkylalkenyl,
heterocyclylalkyl, heterocyclylalkenyl, aralkyl, aralkenyl,
heteroaralkyl, or heteroaralkenyl, wherein each cycloalkyl,
heterocycle, aryl, heteroaryl, cycloalkylalkyl, cycloalkylalkenyl,
heterocyclylalkyl, heterocyclylalkenyl, aralkyl, aralkenyl,
heteroaralkyl, or heteroaralkenyl is optionally substituted with
halo, C.sub.1-6 alkyl, --OH, C.sub.1-6 alkoxy, --CN, --NH.sub.2,
--SO.sub.2--C.sub.1-6 alkyl, --NH(C.sub.1-6 alkyl), --N(C.sub.1-6
alkyl).sub.2, aryl, haloalkyl, or haloalkoxy.
[0144] In some embodiments of formula (I), (Ia), (Ib), (II), (IIa),
(III), (IIIa), (IV), or (IVa), R.sup.1b is aryl; heteroaryl;
aralkyl; or heteroaralkyl wherein each aryl; heteroaryl; aralkyl;
or heteroaralkyl is optionally substituted with halo, C.sub.1-6
alkyl, --OH, C.sub.1-6 alkoxy, --CN, --NH.sub.2,
--SO.sub.2--C.sub.1-6 alkyl, --NH(C.sub.1-6 alkyl), --N(C.sub.1-6
alkyl).sub.2, aryl, haloalkyl, or haloalkoxy.
[0145] In some embodiments of formula (I), (Ia), (Ib), (II), (IIa),
(III), (IIIa), (IV), or (IVa), R.sup.1b is optionally substituted
aralkyl (e.g., benzyl, 2,3-difluorobenzyl, 2-fluorobenzyl,
3-fluorobenzyl, 2-methylbenzyl, 3-methylbenzyl,
2-trifluoromethylbenzyl, 3-trifluoromethylbenzyl, 2-methoxybenzyl,
3-methoxybenzyl).
[0146] In some embodiments of formula (I), (Ia), (Ib), (II), (IIa),
(III), (IIIa), (IV), or (IVa), R.sup.1b is optionally substituted
aryl (e.g., unsubstituted phenyl, 2-(2-chlorophenyl)phenyl,
4-cyanophenyl, 3-cyanophenyl, 2-cyanophenyl, 2-hydroxyphenyl,
2-(methylsulfonyl)phenyl, 3-(methylsulfonyl)phenyl,
2-chloro-4-methylphenyl, 2-chloro-4-fluorophenyl,
2-chloro-3-fluorophenyl, 2-chloro-5-fluorophenyl,
2,3-difluorophenyl, 2,6-difluorophenyl, 2-methylphenyl,
2-fluorophenyl, 2-methoxyphenyl, 2-trifluoromethylphenyl,
2-difluorophenyl, 3-methoxyphenyl, 3-trifluoromethoxyphenyl,
3-trifluoromethylphenyl, 2-trifluoromethoxyphenyl, 3-chlorophenyl,
2-chlorophenyl, 3-fluorophenyl, 2-ethylphenyl, 4-fluorophenyl or
2-methyl-4-fluorophenyl). In some embodiments of formula (I), (Ia)
(Ib), (II), (IIa), (III), (IIIa), (IV), or (IVa), R.sup.1b is
phenyl, optionally substituted with chloro, fluoro, bromo, methyl,
ethyl, --CN, difluoromethyl, trifluoromethyl, --OCF.sub.3,
--SO.sub.2--CH.sub.3, or --OCH.sub.3.
[0147] In some embodiments of formula (I), (Ia), (Ib), (II), (IIa),
(III), (IIIa), (IV), or (IVa), R.sup.1b is optionally substituted
heteroaralkyl (e.g., methyl-3-pyridazinyl, methyl-3-pyridyl,
methyl-2-pyridyl, 3-methyl-methyl-2-pyridyl,
2-fluoro-methyl-3-pyridyl or 3-fluoro-methyl-2-pyridyl). In some
embodiments of formula (I), (Ia), (Ib), (II), (IIa), (III), (IIIa),
(IV), or (IVa), R.sup.1b is optionally substituted heteroaryl
(e.g., 3-fluoro-2-pyridyl, 3-methyl-2-pyridyl, 3-fluoro-4-pyridyl,
4-pyridyl, 4-isothiazolyl, 3-methyl-4-fluoro-2-pyridyl,
2-chloro-4-pyridyl, 4-fluoro-2-methyl-3-pyridyl,
4-fluoro-3-bromo-2-pyridyl, 2-methoxy-3-pyridyl,
6-methoxy-2-pyridyl, 6-fluoro-2-pyridyl, 6-methyl-2-pyridyl,
2-methyl-3-pyridyl, 6-chloro-2-pyridyl,
3-trifluoromethyl-2-pyridyl, 6-trifluoromethyl-2-pyridyl,
2-fluoro-3-pyridyl, 2-trifluoromethyl-3-pyridyl or
6-difluoromethyl-2-pyridyl).
[0148] In some embodiments of formula (I), (Ia), (Ib), (II), (IIa),
(III), (IIIa), (IV), or (IVa), R.sup.1b is optionally substituted
C.sub.1-8 alkyl (e.g., methyl, ethyl, n-propyl, isopropyl, t-butyl,
isobutyl, n-butyl, t-pentyl, 2-hydroxyethyl, 1-hydroxyethyl,
3-hydroxypropyl, 2-hydroxy-2-methylpropyl, 3-hydroxy-3-methylbutyl,
3,3,3-trifluoropropyl, 2-methoxyethyl, 3,3-difluoropropyl,
ethoxymethyl, N,N-dimethylmethyl, pyrrollomethyl or
2-hydroxypropyl). In some embodiments of formula (I), (Ia), (Ib),
(II), (IIa), (III), (IIIa), (IV), or (IVa), R.sup.1b is optionally
substituted cycloalkyl (e.g., cyclopropyl). In some embodiments of
formula (I), (Ia), (Ib), (II), (IIa), (III), (IIIa), (IV), or
(IVa), R.sup.1b is optionally substituted cycloalkylalkyl (e.g.,
cyclopropylmethyl, 1-methyl-cyclopropylmethyl, cyclobutylmethyl,
2,2-difluorocyclopropylmethyl). In some embodiments of formula (I),
(Ia), (Ib), (II), (IIa), (III), (IIIa), (IV), or (IVa), R.sup.1b is
optionally substituted C.sub.2-8 alkenyl (e.g., 2-methyl-2-propenyl
or 3,3-difluoro-2-propenyl). In some embodiments of formula (I),
(Ia), (Ib), (II), (IIa), (III), (IIIa), (IV), or (IVa), R.sup.1b is
C.sub.1-8 alkyl optionally substituted with one to four R.sup.5
groups (e.g., halo, --OH, C.sub.1-6 alkoxy, CN, NH.sub.2,
--SO.sub.2--C.sub.1-6 alkyl, --NH(C.sub.1-6 alkyl), and
--N(C.sub.1-6 alkyl).sub.2). In some embodiments of formula (I),
(Ia), (Ib), (II), (IIa), (III), (IIIa), (IV), or (IVa), R.sup.1b is
C.sub.1-8 alkyl optionally substituted with one to four R.sup.5
groups (e.g., chloro, fluoro, --OH, --OCH.sub.3,
--OCH.sub.2CH.sub.3, --CN, --NH.sub.2, --SO.sub.2--CH.sub.3,
--SO.sub.2--CH.sub.2CH.sub.3, --NH(CH.sub.3), --N(CH.sub.3).sub.2,
and --N(CH.sub.3)(CH.sub.2CH.sub.3)).
[0149] In some embodiments of formula (I), (Ia), (Ib), (II), (IIa),
(III), (IIIa), (IV), or (IVa), R.sup.1b is --NH--R.sup.5. In some
further aspects of these embodiments, R.sup.5 is optionally
substituted aryl (e.g., 2-methoxyphenyl). In some further aspects
of these embodiments, R.sup.5 is optionally substituted aralkyl
(e.g., unsubstituted benzyl).
[0150] In some embodiments of formula (I), (Ia), (Ib), (II), (IIa),
(III), (IIIa), (IV), or (IVa), R.sup.1b is --NH--C(O)--R.sup.5. In
some further aspects of these embodiments, R.sup.5 is optionally
substituted heteroaryl (e.g., unsubstituted 2-pyridyl).
[0151] In some embodiments of formula (I), (Ia), (Ib), (II), (IIa),
(III), (IIIa), (IV), or (IVa), R.sup.1b is:
##STR00016## ##STR00017## ##STR00018## ##STR00019##
In yet another embodiment, the compound is selected from any one of
the compounds set forth in Table 1, below:
TABLE-US-00001 TABLE 1 Exemplary Compounds of Formula I: Compound #
Structure 100 ##STR00020## 101 ##STR00021## 102 ##STR00022## 103
##STR00023## 104 ##STR00024## 105 ##STR00025## 106 ##STR00026## 108
##STR00027## 109 ##STR00028## 110 ##STR00029## 111 ##STR00030## 112
##STR00031## 113 ##STR00032## 114 ##STR00033## 115 ##STR00034## 116
##STR00035## 117 ##STR00036## 118 ##STR00037## 119 ##STR00038## 120
##STR00039## 121 ##STR00040## 122 ##STR00041## 123 ##STR00042## 124
##STR00043## 125 ##STR00044## 126 ##STR00045## 127 ##STR00046## 128
##STR00047## 129 ##STR00048## 130 ##STR00049## 131 ##STR00050## 132
##STR00051## 133 ##STR00052## 134 ##STR00053## 135 ##STR00054## 136
##STR00055## 137 ##STR00056## 138 ##STR00057## 140 ##STR00058## 141
##STR00059## 142 ##STR00060## 143 ##STR00061## 144 ##STR00062## 145
##STR00063## 146 ##STR00064## 147 ##STR00065## 148 ##STR00066## 149
##STR00067## 150 ##STR00068## 151 ##STR00069## 152 ##STR00070## 153
##STR00071## 154 ##STR00072## 155 ##STR00073## 156 ##STR00074## 157
##STR00075## 158 ##STR00076## 159 ##STR00077## 160 ##STR00078## 161
##STR00079## 162 ##STR00080## 163 ##STR00081## 164 ##STR00082## 165
##STR00083## 166 ##STR00084## 167 ##STR00085## 168 ##STR00086## 169
##STR00087## 170 ##STR00088## 171 ##STR00089## 172 ##STR00090## 173
##STR00091## 174 ##STR00092## 175 ##STR00093## 176 ##STR00094## 177
##STR00095## 178 ##STR00096## 179 ##STR00097## 180 ##STR00098## 181
##STR00099## 182 ##STR00100## 183 ##STR00101## 184 ##STR00102## 185
##STR00103## 186 ##STR00104## 187 ##STR00105## 188 ##STR00106## 189
##STR00107## 190 ##STR00108## 191 ##STR00109## 192 ##STR00110## 193
##STR00111## 194 ##STR00112## 195 ##STR00113## 196 ##STR00114## 197
##STR00115## 198 ##STR00116## 199 ##STR00117## 200 ##STR00118## 201
##STR00119## 202 ##STR00120## 203 ##STR00121## 204 ##STR00122## 205
##STR00123## 206 ##STR00124## 207 ##STR00125## 208 ##STR00126## 209
##STR00127## 210 ##STR00128## 211 ##STR00129## 212 ##STR00130## 213
##STR00131## 214 ##STR00132## 215 ##STR00133## 216 ##STR00134## 217
##STR00135## 218 ##STR00136## 219 ##STR00137## 220 ##STR00138## 221
##STR00139## 222 ##STR00140## 223 ##STR00141##
224 ##STR00142## 225 ##STR00143## 226 ##STR00144## 227 ##STR00145##
228 ##STR00146## 229 ##STR00147## 230 ##STR00148## 231 ##STR00149##
232 ##STR00150## 233 ##STR00151## 234 ##STR00152## 235 ##STR00153##
237 ##STR00154## 238 ##STR00155## 239 ##STR00156## 240 ##STR00157##
241 ##STR00158## 242 ##STR00159## 243 ##STR00160## 244 ##STR00161##
245 ##STR00162## 246 ##STR00163## 247 ##STR00164## 250 ##STR00165##
251 ##STR00166## 253 ##STR00167## 254 ##STR00168## 255 ##STR00169##
256 ##STR00170## 257 ##STR00171## 258 ##STR00172## 259 ##STR00173##
260 ##STR00174## 261 ##STR00175## 262 ##STR00176## 263 ##STR00177##
265 ##STR00178## 266 ##STR00179## 267 ##STR00180## 268 ##STR00181##
269 ##STR00182## 270 ##STR00183## 271 ##STR00184## 272 ##STR00185##
273 ##STR00186## 274 ##STR00187## 275 ##STR00188## 276 ##STR00189##
277 ##STR00190## 278 ##STR00191## 280 ##STR00192## 281 ##STR00193##
283 ##STR00194## 284 ##STR00195## 285 ##STR00196## 286 ##STR00197##
287 ##STR00198## 288 ##STR00199## 289 ##STR00200## 290 ##STR00201##
292 ##STR00202## 293 ##STR00203## 294 ##STR00204## 296 ##STR00205##
297 ##STR00206## 298 ##STR00207## 299 ##STR00208## 300 ##STR00209##
301 ##STR00210## 302 ##STR00211## 303 ##STR00212## 304 ##STR00213##
306 ##STR00214## 307 ##STR00215## 308 ##STR00216## 309 ##STR00217##
310 ##STR00218## 311 ##STR00219## 312 ##STR00220## 313 ##STR00221##
314 ##STR00222## 315 ##STR00223## 316 ##STR00224## 317 ##STR00225##
318 ##STR00226## 319 ##STR00227## 320 ##STR00228## 321 ##STR00229##
322 ##STR00230## 323 ##STR00231## 324 ##STR00232## 325 ##STR00233##
326 ##STR00234## 327 ##STR00235## 330 ##STR00236## 331 ##STR00237##
353 ##STR00238## 368 ##STR00239## 372 ##STR00240## 376 ##STR00241##
377 ##STR00242## 378 ##STR00243## 379 ##STR00244## 380 ##STR00245##
381 ##STR00246## 382 ##STR00247## 383 ##STR00248## 384 ##STR00249##
385 ##STR00250## 386 ##STR00251## 387 ##STR00252## 388 ##STR00253##
389 ##STR00254## 390 ##STR00255## 391 ##STR00256## 392 ##STR00257##
393 ##STR00258## 394 ##STR00259## 395 ##STR00260## 396 ##STR00261##
397 ##STR00262## 398 ##STR00263## 399 ##STR00264## 400 ##STR00265##
401 ##STR00266## 402 ##STR00267##
403 ##STR00268## 404 ##STR00269## 405 ##STR00270## 406 ##STR00271##
407 ##STR00272## 408 ##STR00273## 409 ##STR00274## 410 ##STR00275##
411 ##STR00276## 412 ##STR00277## 413 ##STR00278## 414 ##STR00279##
415 ##STR00280## 416 ##STR00281## 417 ##STR00282## 418 ##STR00283##
419 ##STR00284## 420 ##STR00285## 421 ##STR00286## 422 ##STR00287##
423 ##STR00288## 424 ##STR00289## 425 ##STR00290## 426 ##STR00291##
427 ##STR00292## 428 ##STR00293## 429 ##STR00294## 430 ##STR00295##
431 ##STR00296## 432 ##STR00297## 433 ##STR00298## 434 ##STR00299##
435 ##STR00300## 436 ##STR00301## 437 ##STR00302## 438 ##STR00303##
439 ##STR00304## 440 ##STR00305## 441 ##STR00306## 442 ##STR00307##
443 ##STR00308## 444 ##STR00309## 445 ##STR00310## 446 ##STR00311##
447 ##STR00312## 448 ##STR00313## 449 ##STR00314## 450 ##STR00315##
451 ##STR00316## 452 ##STR00317## 453 ##STR00318## 454 ##STR00319##
455 ##STR00320## 456 ##STR00321## 457 ##STR00322## 458 ##STR00323##
459 ##STR00324## 460 ##STR00325## 461 ##STR00326## 462 ##STR00327##
463 ##STR00328## 464 ##STR00329## 465 ##STR00330## 466 ##STR00331##
467 ##STR00332## 468 ##STR00333## 469 ##STR00334## 470 ##STR00335##
471 ##STR00336## 472 ##STR00337## 473 ##STR00338## 474 ##STR00339##
475 ##STR00340## 476 ##STR00341## 477 ##STR00342## 478 ##STR00343##
479 ##STR00344## 480 ##STR00345## 481 ##STR00346## 482 ##STR00347##
483 ##STR00348## 484 ##STR00349## 485 ##STR00350## 486 ##STR00351##
487 ##STR00352## 488 ##STR00353## 489 ##STR00354## 490 ##STR00355##
491 ##STR00356## 492 ##STR00357## 493 ##STR00358## 494 ##STR00359##
495 ##STR00360## 496 ##STR00361## 497 ##STR00362## 498 ##STR00363##
499 ##STR00364## 500 ##STR00365## 501 ##STR00366## 502 ##STR00367##
503 ##STR00368## 504 ##STR00369## 505 ##STR00370## 506 ##STR00371##
507 ##STR00372## 508 ##STR00373## 509 ##STR00374## 510 ##STR00375##
511 ##STR00376## 512 ##STR00377## 513 ##STR00378## 514 ##STR00379##
515 ##STR00380## 516 ##STR00381## 517 ##STR00382## 518 ##STR00383##
519 ##STR00384## 520 ##STR00385## 521 ##STR00386## 522 ##STR00387##
523 ##STR00388## 524 ##STR00389## 525 ##STR00390## 526 ##STR00391##
527 ##STR00392##
528 ##STR00393## 529 ##STR00394##
[0152] Compounds described herein are useful as activators of PKR
mutants having lower activities compared to the wild type, thus are
useful for methods of the present invention. Such mutations in PKR
can affect enzyme activity (catalytic efficiency), regulatory
properties (modulation by fructose bisphosphate (FBP)/ATP), and/or
thermostability of the enzyme. Examples of such mutations are
described in Valentini et al, JBC 2002. Some examples of the
mutants that are activated by the compounds described herein
include G332S, G364D, T384M, G37E, R479H, R479K, R486W, R532W,
R510Q, and R490W. Without being bound by theory, compounds
described herein affect the activities of PKR mutants by activating
FBP non-responsive PKR mutants, restoring thermostability to
mutants with decreased stability, or restoring catalytic efficiency
to impaired mutants. The activating activity of the present
compounds against PKR mutants may be tested following a method
described in Example 8. Compounds described herein are also useful
as activators of wild type PKR.
[0153] In an embodiment, to increase the lifetime of the red blood
cells, a compound, composition or pharmaceutical composition
described herein is added directly to whole blood or packed cells
extracorporeally or be provided to the patient directly (e.g., by
i.p., i.v., i.m., oral, inhalation (aerosolized delivery),
transdermal, sublingual and other delivery routes). Without being
bound by theory, compounds described herein increase the lifetime
of the RBCs, thus counteract aging of stored blood, by impacting
the rate of release of 2,3-DPG from the blood. A decrease in the
level of 2, 3-DPG concentration induces a leftward shift of the
oxygen-hemoglobin dissociation curve and shifts the allosteric
equilibribrium to the R, or oxygenated state, thus producing a
therapeutic inhibition of the intracellular polymerization that
underlies sickling by increasing oxygen affinity due to the 2,3-DPG
depletion, thereby stabilizing the more soluble oxy-hemoglobin.
Accordingly, in one embodiment, compounds and pharmaceutical
compositions described herein are useful as antisickling agents. In
another embodiment, to regulate 2,3-diphosphoglycerate, a compound,
composition or pharmaceutical composition described herein is added
directly to whole blood or packed cells extracorporeally or be
provided to the patient directly (e.g., by i.p., i.v., i.m., oral,
inhalation (aerosolized delivery), transdermal, sublingual and
other delivery routes).
[0154] A compound described herein may be an activator of a PKR,
for example, a wild type (wt), mutated PKR (e.g., R510Q, or R532W).
Activities of exemplary compounds against wt PKR (in an enzymatic
or cell based assay) and mutant PKRs are shown in Table 2 as
measured by assays in Examples 2-5 below. As shown in Table 2, AA
refers to an AC.sub.50 less than 100 nM, BB refers to an AC.sub.50
from 101 nM to 1.00 .mu.M, CC refers to an AC.sub.50 from than 1.01
.mu.M to 10.00 .mu.M, DD refers to an AC.sub.50 greater than 10.01
.mu.M and EE refers to an AC50 that is not available.
TABLE-US-00002 TABLE 2 PKR PKR PKR WT Compound R510Q R532W PKR WT
Cell Based # AC50 (.mu.M) AC50 (.mu.M) AC50 (.mu.M) AC50 (.mu.M)
100 AA AA AA AA 101 AA AA AA AA 102 AA AA AA AA 103 AA AA AA AA 104
AA AA AA AA 105 AA AA AA AA 106 EE AA AA AA 108 AA AA AA AA 109 AA
AA AA AA 110 AA AA AA AA 111 AA AA AA AA 112 AA AA AA BB 113 AA AA
AA AA 114 AA AA AA AA 115 AA AA AA AA 116 AA AA AA AA 117 AA AA AA
AA 118 BB AA AA AA 119 AA AA AA AA 120 AA AA AA AA 121 AA AA AA AA
122 AA AA AA AA 123 AA AA AA AA 124 AA AA AA AA 125 AA AA AA AA 126
AA AA AA AA 127 AA AA AA AA 128 AA AA AA AA 129 AA AA AA AA 130 AA
AA AA AA 131 AA AA AA AA 132 AA AA AA EE 133 AA AA AA AA 134 AA AA
AA AA 135 BB AA AA AA 136 AA AA AA AA 137 AA AA AA AA 138 AA AA AA
AA 140 AA AA AA AA 141 BB AA AA AA 142 BB AA AA AA 143 AA AA AA AA
144 AA AA AA AA 145 AA AA AA AA 146 BB AA AA AA 147 BB AA AA AA 148
BB AA AA BB 149 EE AA AA AA 150 AA AA AA BB 151 AA AA AA AA 152 BB
AA AA BB 153 BB AA AA AA 154 AA AA AA AA 155 BB AA AA AA 156 BB AA
AA AA 157 BB AA AA AA 158 AA AA AA EE 159 BB AA AA AA 160 AA AA AA
AA 161 BB AA AA AA 162 BB AA AA AA 163 BB AA AA AA 164 BB AA AA AA
165 BB AA AA AA 166 BB AA AA AA 167 AA AA AA AA 168 BB AA AA AA 169
BB AA AA AA 170 BB AA AA BB 171 BB AA AA BB 172 AA AA AA AA 173 AA
AA AA AA 174 BB AA AA AA 175 BB AA AA AA 176 BB AA AA AA 177 BB AA
AA AA 178 BB AA AA AA 179 BB AA AA AA 180 BB AA AA AA 181 BB AA AA
EE 182 CC EE AA AA 183 BB AA AA AA 184 BB AA AA BB 185 BB AA AA BB
186 BB AA AA BB 187 AA AA AA AA 188 BB AA AA EE 189 BB AA AA BB 190
BB AA AA BB 191 BB AA AA AA 192 CC AA AA AA 193 BB AA AA AA 194 BB
AA AA AA 195 BB AA AA AA 196 BB AA AA BB 197 BB AA AA BB 198 BB AA
AA EE 199 BB AA AA AA 200 BB BB AA EE 201 BB AA AA EE 202 BB AA AA
EE 203 BB AA AA AA 204 BB AA AA AA 205 BB AA AA BB 206 CC AA AA AA
207 BB AA AA BB 208 BB AA AA EE 209 BB AA AA AA 210 BB AA AA BB 211
BB AA AA BB 212 BB AA AA AA 213 BB AA AA AA 214 BB AA AA AA 215 BB
AA AA BB 216 BB AA AA EE 217 BB BB AA BB 218 BB AA AA AA 219 BB AA
AA EE 220 BB AA AA CC 221 BB AA AA EE 222 BB AA AA AA 223 BB AA AA
BB 224 CC AA AA BB 225 BB BB AA BB 226 BB AA AA BB 227 BB BB BB EE
228 CC AA BB AA 229 BB BB BB BB 230 BB BB BB EE 231 CC BB BB EE 232
BB BB BB EE 233 BB BB BB EE 234 BB BB BB EE 235 BB BB BB EE 237 BB
BB BB BB 238 CC BB BB EE 239 BB BB BB EE 240 BB BB BB EE 241 CC BB
BB BB 242 BB BB BB EE 243 CC BB BB AA 244 CC BB BB EE 245 CC BB BB
CC 246 CC AA BB EE 247 CC BB BB EE 250 CC BB BB CC 251 BB BB BB EE
253 CC BB BB EE 254 BB BB BB EE 255 CC BB BB EE 256 CC BB BB EE 257
CC BB BB EE 258 BB BB BB EE 259 CC BB BB EE 260 CC BB BB CC 261 BB
BB BB EE 262 BB BB BB EE 263 BB BB BB EE 265 CC BB BB EE 266 CC BB
BB EE 267 CC BB BB EE 268 CC BB BB EE 269 CC BB BB EE 270 CC BB BB
EE 271 CC BB BB EE 272 CC BB BB EE 273 CC BB BB EE 274 CC BB BB EE
275 CC BB BB EE 276 CC BB BB EE 277 CC BB BB EE 278 CC BB BB EE 280
CC BB BB EE 281 EE BB BB EE 283 CC BB BB EE 284 CC BB BB EE 285 DD
BB BB EE 286 CC BB BB EE 287 EE CC BB EE 288 EE CC BB EE 289 CC BB
BB EE 290 CC BB BB EE 292 CC CC BB EE 293 CC BB BB EE 294 DD CC CC
EE 296 DD CC CC EE 297 CC CC CC EE 298 DD CC CC EE 299 EE EE CC EE
300 DD CC CC EE 301 EE CC CC EE 302 DD CC CC EE 303 DD CC CC EE 304
DD CC CC EE 306 DD CC CC EE 307 DD CC CC EE 308 DD CC CC EE 309 DD
CC CC EE 310 EE CC CC EE 311 DD CC CC EE 312 DD CC CC EE 313 DD DD
CC EE 314 DD DD CC EE 315 EE DD CC EE 316 DD DD DD EE 317 EE EE DD
EE 318 DD DD DD EE 319 EE DD DD EE 320 DD DD DD EE 321 EE DD DD EE
322 DD DD DD EE 323 EE EE DD EE 324 DD DD DD EE 325 EE EE EE EE 326
EE EE EE EE 327 EE CC EE EE 330 CC BB EE EE 331 EE EE EE EE 353 BB
AA AA AA 368 CC BB BB EE 372 BB BB BB EE 373 BB BB BB EE 376 CC BB
BB EE 377 BB AA AA AA 378 CC BB BB EE 379 BB BB BB BB 380 BB BB AA
AA 381 BB BB AA EE 382 BB BB AA AA 383 BB AA AA AA 384 BB BB BB EE
385 AA AA AA AA 386 BB BB BB EE 387 BB AA AA BB 388 AA AA AA AA 389
AA AA AA AA 390 AA AA AA AA 391 AA AA AA AA 392 AA AA AA AA 393 BB
AA AA AA 394 BB AA AA AA 395 BB AA AA BB 396 BB BB AA AA 397 AA AA
AA AA
398 BB AA AA AA 399 AA AA AA AA 400 BB AA AA AA 401 BB AA AA BB 402
AA AA AA AA 403 BB AA BB AA 404 AA AA AA BB 405 BB BB BB BB 406 AA
AA AA AA 407 AA AA AA AA 408 AA AA AA AA 409 AA AA AA EE 410 DD BB
BB EE 411 BB AA BB AA 412 BB AA AA BB 413 BB BB BB EE 414 DD CC CC
EE 415 CC CC CC EE 416 DD DD CC EE 417 DD CC CC EE 418 DD DD CC EE
419 EE DD DD EE 420 AA AA AA AA 421 DD CC CC EE 422 AA AA AA AA 423
BB AA AA AA 424 AA BB AA BB 425 AA BB AA AA 426 BB BB BB BB 427 AA
AA AA AA 428 BB AA AA AA 429 AA AA AA AA 430 BB AA AA BB 431 AA AA
AA BB 432 BB AA AA BB 433 BB AA BB BB 434 BB AA BB BB 435 AA AA AA
BB 436 BB AA BB BB 437 AA AA AA AA 438 CC CC CC EE 439 AA AA AA AA
440 BB BB AA BB 441 CC BB BB EE 442 BB AA AA BB 445 AA AA AA AA 446
DD CC CC EE 447 AA AA AA AA 448 BB AA AA AA 449 DD DD DD EE 450 DD
DD DD EE 451 AA BB AA BB 452 AA BB AA AA 453 BB BB BB BB 454 AA AA
AA AA 455 BB AA AA AA 456 AA AA AA AA 457 BB AA AA BB 458 AA AA AA
BB 459 BB AA AA BB 460 DD DD DD EE 461 BB AA BB BB 462 BB AA BB BB
463 AA AA AA BB 464 BB AA BB BB 465 AA AA AA AA 466 DD DD CC EE 467
CC CC CC EE 468 AA AA AA AA 469 BB BB BB CC 470 DD CC CC EE 471 CC
BB BB EE 472 CC BB BB EE 473 BB AA AA BB 474 CC BB BB EE 475 EE DD
DD EE 476 EE CC CC EE 477 CC BB BB EE 478 BB BB BB BB 479 BB AA AA
BB 480 BB AA AA BB 481 CC BB CC EE 482 AA AA AA AA 483 BB BB AA BB
484 DD CC CC EE 485 DD CC CC EE 486 BB AA AA AA 487 CC CC CC EE 488
DD BB CC EE 489 EE EE AA BB 490 DD CC CC EE 491 BB BB BB BB 492 BB
BB BB BB 493 AA AA AA AA 494 BB EE EE EE 495 DD CC CC EE 496 DD CC
CC EE 497 AA AA AA AA 498 BB AA AA BB 499 BB AA AA BB 500 CC BB BB
BB 501 BB BB BB BB 502 BB BB BB BB 503 DD BB BB EE 504 CC CC BB EE
505 BB BB BB EE 506 DD CC CC EE 507 DD BB BB EE 508 BB AA AA AA 509
DD BB CC EE 510 CC BB BB EE 511 BB AA AA BB 512 BB AA AA BB 513 BB
AA AA AA 514 BB AA AA BB 515 BB EE EE BB 516 BB EE EE AA 517 BB EE
EE BB 518 BB AA AA BB 519 AA AA AA AA 520 BB AA AA BB 521 BB AA AA
AA 522 BB AA AA AA 523 CC BB BB BB 524 EE DD DD CC 525 DD EE EE BB
526 BB BB BB AA 527 BB BB BB AA 528 BB AA AA BB 529 BB BB EE EE
[0155] The compounds described herein can be made using a variety
of synthetic techniques, general and specific examples of which are
set forth in Example section.
[0156] As can be appreciated by the skilled artisan, methods of
synthesizing the compounds of the formulae herein will be evident
to those of ordinary skill in the art. Additionally, the various
synthetic steps may be performed in an alternate sequence or order
to give the desired compounds. Synthetic chemistry transformations
and protecting group methodologies (protection and deprotection)
useful in synthesizing the compounds described herein are known in
the art and include, for example, those such as described in R.
Larock, Comprehensive Organic Transformations, VCH Publishers
(1989); T. W. Greene and P. G. M. Wuts, Protective Groups in
Organic Synthesis, 2d. Ed., John Wiley and Sons (1991); L. Fieser
and M. Fieser, Fieser and Fieser's Reagents for Organic Synthesis,
John Wiley and Sons (1994); and L. Paquette, ed., Encyclopedia of
Reagents for Organic Synthesis, John Wiley and Sons (1995), and
subsequent editions thereof.
[0157] The compounds provided herein may contain one or more
asymmetric centers and thus occur as racemates and racemic
mixtures, single enantiomers, individual diastereomers and
diastereomeric mixtures. All such isomeric forms of these compounds
are expressly included within the scope. Unless otherwise indicated
when a compound is named or depicted by a structure without
specifying the stereochemistry and has one or more chiral centers,
it is understood to represent all possible stereoisomers of the
compound. The compounds provided herewith may also contain linkages
(e.g., carbon-carbon bonds) or substituents that can restrict bond
rotation, e.g., restriction resulting from the presence of a ring
or double bond. Accordingly, all cis/trans and E/Z isomers are
expressly included.
[0158] The compounds provided herein (e.g., of Formula I) may also
comprise one or more isotopic substitutions. For example, H may be
in any isotopic form, including .sup.1H, .sup.2H (D or deuterium),
and .sup.3H (T or tritium); C may be in any isotopic form,
including .sup.12C, .sup.13C, and .sup.14C; O may be in any
isotopic form, including .sup.16O and .sup.18O; and the like. The
compounds provided herein may also be represented in multiple
tautomeric forms, in such instances, expressly includes all
tautomeric forms of the compounds described herein, even though
only a single tautomeric form may be represented (e.g., alkylation
of a ring system may result in alkylation at multiple sites; all
such reaction products are expressly included). All such isomeric
forms of such compounds are expressly included. All crystal forms
of the compounds described herein are expressly included.
[0159] The compounds provided herein include the compounds
themselves, as well as their salts and their prodrugs, if
applicable. A salt, for example, can be formed between an anion and
a positively charged substituent (e.g., amino) on a compound
described herein. Suitable anions include chloride, bromide,
iodide, sulfate, nitrate, phosphate, citrate, methanesulfonate,
trifluoroacetate, and acetate. Likewise, a salt can also be formed
between a cation and a negatively charged substituent (e.g.,
carboxylate) on a compound described herein. Suitable cations
include sodium ion, potassium ion, magnesium ion, calcium ion, and
an ammonium cation such as tetramethylammonium ion. Examples of
prodrugs include esters and other pharmaceutically acceptable
derivatives, which, upon administration to a subject, are capable
of providing active compounds.
[0160] The compounds provided herein may be modified by appending
appropriate functionalities to enhance selected biological
properties, e.g., targeting to a particular tissue. Such
modifications are known in the art and include those which increase
biological penetration into a given biological compartment (e.g.,
blood, lymphatic system, central nervous system), increase oral
availability, increase solubility to allow administration by
injection, alter metabolism and alter rate of excretion.
[0161] In an alternate embodiment, the compounds described herein
may be used as platforms or scaffolds that may be utilized in
combinatorial chemistry techniques for preparation of derivatives
and/or chemical libraries of compounds. Such derivatives and
libraries of compounds have biological activity and are useful for
identifying and designing compounds possessing a particular
activity. Combinatorial techniques suitable for utilizing the
compounds described herein are known in the art as exemplified by
Obrecht, D. and Villalgrodo, J. M., Solid-Supported Combinatorial
and Parallel Synthesis of Small-Molecular-Weight Compound
Libraries, Pergamon-Elsevier Science Limited (1998), and include
those such as the "split and pool" or "parallel" synthesis
techniques, solid-phase and solution-phase techniques, and encoding
techniques (see, for example, Czarnik, A. W., Curr. Opin. Chem.
Bio., (1997) 1, 60. Thus, one embodiment relates to a method of
using the compounds described herein for generating derivatives or
chemical libraries comprising: 1) providing a body comprising a
plurality of wells; 2) providing one or more compounds identified
by methods described herein in each well; 3) providing an
additional one or more chemicals in each well; 4) isolating the
resulting one or more products from each well. An alternate
embodiment relates to a method of using the compounds described
herein for generating derivatives or chemical libraries comprising:
1) providing one or more compounds described herein attached to a
solid support; 2) treating the one or more compounds identified by
methods described herein attached to a solid support with one or
more additional chemicals; 3) isolating the resulting one or more
products from the solid support. In the methods described above,
"tags" or identifier or labeling moieties may be attached to and/or
detached from the compounds described herein or their derivatives,
to facilitate tracking, identification or isolation of the desired
products or their intermediates. Such moieties are known in the
art. The chemicals used in the aforementioned methods may include,
for example, solvents, reagents, catalysts, protecting group and
deprotecting group reagents and the like. Examples of such
chemicals are those that appear in the various synthetic and
protecting group chemistry texts and treatises referenced
herein.
Methods of Evaluating Compounds
[0162] The compounds described herein can be evaluated for ability
to modulate PKM2 (e.g., activate PKM2) by methods known in the art.
In some embodiments, compounds described herein are evaluated for
ability to modulate PKM2 (e.g., activate PKM2) in serine deficient
conditions. In some embodiments, exemplary methods include
contacting the compound with a cell-based assay which allows
assessment of the ability to modulate (e.g., activate) PKM2. E.g.,
the candidate compound can be contacted with a cell and measuring
the consumption of oxygen or production of lactate. A change in
cellular phosphoenolpyruvate, a change in glycerol-phosphate, a
change in ribose or deoxyribose, a change in lipid synthesis, or a
change in glucose conversion to lipid or nucleic acids or amino
acids or protein can also be used to evaluate a compound for its
ability to modulate PKM2 (e.g., activate PKM2). The evaluation
could also include measuring a change in pyruvate or a
determination of an alteration in mitochondrial membrane potential,
e.g., as measured by fluorescent potentiometric dyes.
[0163] PKM1 and PKM2 for use in the screening/testing method may be
produced by any method known in the art for expression of
recombinant proteins. For example, nucleic acids that encode the
desired polypeptide may be introduced into various cell types or
cell-free systems for expression. Eukaryotic (e.g., COS, HEK293T,
CHO, and NIH cell lines) and prokaryotic (e.g., E. coli) expression
systems may be generated in which a PKM sequence is introduced into
a plasmid or other vector, which is then used to transform living
cells. Constructs in which the PKM cDNA contains the entire open
reading frame, or biologically active fragment thereof, are
inserted in the correct orientation into an expression plasmid and
may be used for protein expression. Prokaryotic and eukaryotic
expression systems allow for the expression and recovery of fusion
proteins in which the PKM protein is covalently linked to a tag
molecule on either the amino terminal or carboxy terminal side,
which facilitates identification and/or purification. Examples of
tags that can be used include hexahistidine, HA, FLAG, and c-myc
epitope tags. An enzymatic or chemical cleavage site can be
engineered between the PKM protein and the tag molecule so that the
tag can be removed following purification.
[0164] The activity of the PKM enzyme measured in the
screening/testing assay may be measured by, e.g., monitoring the
concentration of a substrate (e.g., ATP or NADH) present in the
reaction mixture. Pyruvate, produced by the enzymatic activity of
pyruvate kinase, is converted into lactate by lactate
dehydrogenase, which requires the consumption of NADH
(NADH.fwdarw.NAD+). Thus, the activity of PKM2 can be indirectly
measured by monitoring the consumption of NADH through, e.g.,
fluorescence assays. Additionally, the activity of the PKM2 enzyme
can be directly monitored by measuring the production of ATP, as
ATP is produced when phosphoenolpyruvate is converted to pyruvate.
Methods for monitoring the amount of substrate in a reaction
mixture include, e.g., absorbance, fluorescence, Raman scattering,
phosphorescence, luminescence, luciferase assays, and
radioactivity.
[0165] The screening procedure requires the presence of specific
components in the reaction mixture. Components utilized in the
assay include, e.g., a nucleoside diphosphate (e.g., ADP),
phosphoenolpyruvate, NADH, lactate dehydrogenase, FBP, a reducing
agent (e.g., dithiothreitol), a detergent (e.g., Brij 35),
glycerol, and a solvent (e.g., DMSO). Exemplary reaction conditions
are found in Table 3.
TABLE-US-00003 TABLE 3 Amount in Component of Reaction Condition
Activation Assay ADP 0.1-5.0 mM Phosphoenolpyruvate 0.1-5.0 mM NADH
10-1000 .mu.M Lactate dehydrogenase 0.1-10 units
Fructose-1,6-bisphosphate 0 DTT 0.1-50 mM Brij 35 0.01-1% Glycerol
0.1-10% Pyruvate Kinase M2 (used for screen) 1-100 pg DMSO
1-10%
[0166] Compounds useful as PKM2 activators are those that
demonstrate specificity and activation of PKM2 enzyme in the
absence of FBP to a level greater than that of 10, 15, 20, 25, 30,
35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 99, or 100% in
the presence of FBP. Furthermore, compounds can be evaluated in the
presence or absence of a phosphotyrosine peptide. Phosphotyrosine
peptide binding to PKM2 leads to a dissociation of FBP from PKM2
and conformational changes of PKM2 from an active, tetrameric form
to an inactive form. Compounds that bind to PKM2 and lock the
enzyme in the active confirmation even in the presence of a
phosphotyrosine peptide will lead to the loss of allosteric control
of PKM2 needed for shunting the biochemical intermediates from
glycolysis into biosynthesis of other intermediates. This, in turn,
will lead to inhibition of growth of cancer cells, activated immune
cells and fat cells.
Methods of Treatment
[0167] In one embodiment, provided is a method for treating or
preventing a disease, condition or disorder as described herein
(e.g., treating) comprising administering a compound, a
pharmaceutically acceptable salt of a compound or pharmaceutical
composition comprising a compound described herein (e.g., a
compound of formula (I), (Ia), (Ib), (II), (IIa), (III), (IIIa),
(IV), (IVa), or in Table 1).
[0168] The compounds and compositions described herein can be
administered to cells in culture, e.g., in vitro or ex vivo, or to
a subject, e.g., in vivo, to treat, prevent, and/or diagnose a
variety of disorders, including those described herein below.
[0169] As used herein, the term "treat" or "treatment" is defined
as the application or administration of a compound, alone or in
combination with, a second therapeutic agent to a subject, e.g., a
patient, or application or administration of the compound to an
isolated tissue or cell, e.g., cell line, from a subject, e.g., a
patient, who has a disorder (e.g., a disorder as described herein),
a symptom of a disorder, with the purpose to cure, heal, alleviate,
relieve, alter, remedy, ameliorate, improve or affect the disorder,
or one or more symptoms of the disorder.
[0170] As used herein, an amount of a compound effective to treat a
disorder, or a "therapeutically effective amount" refers to an
amount of the compound which is effective, upon single or multiple
dose administration to a subject, in treating a cell, or in curing,
alleviating, relieving or improving a subject with a disorder
beyond that expected in the absence of such treatment.
[0171] As used herein, the term "prevent" is defined as the
application or administration of a compound, alone or in
combination with, a second therapeutic agent to a subject, e.g., a
patient, or application or administration of the compound to an
isolated tissue or cell, e.g., cell line, from a subject, e.g., a
patient, who has a predisposition toward a disorder, with the
purpose to prevent the occurrence of at least one symptom of the
disorder or to delay onset of at least one symptom of the
disorder).
[0172] As used herein, an amount of a compound effective to prevent
a disorder, or a "a prophylactically effective amount" of the
compound refers to an amount effective, upon single- or
multiple-dose administration to the subject, in preventing or
delaying the occurrence of the onset or recurrence of a disorder or
a symptom of the disorder.
[0173] As used herein, the term "subject" is intended to include
human and non-human animals. Exemplary human subjects include a
human patient having a disorder, e.g., a disorder described herein
or a normal subject. The term "non-human animals" includes all
vertebrates, e.g., non-mammals (such as chickens, amphibians,
reptiles) and mammals, such as non-human primates, domesticated
and/or agriculturally useful animals, e.g., sheep, dog, cat, cow,
pig, etc.
Blood Related Conditions
[0174] A compound or composition described herein can be used to
treat a blood related condition. In one embodiment, provided is a
method for increasing lifetime of the red blood cells (RBCs) in
need thereof comprising contacting blood with an effective amount
of (1) a compound disclosed herein or a pharmaceutically acceptable
salt, solvate or hydrate thereof; (2) a composition comprising a
compound disclosed herein or a salt, solvate or hydrate thereof and
a carrier; or (3) a pharmaceutical composition comprising a
compound disclosed herein or a pharmaceutically acceptable salt,
solvate or hydrate thereof, and a pharmaceutically acceptable
carrier.
[0175] In another embodiment, provided is a method for regulating
2,3-diphosphoglycerate levels in blood in need thereof comprising
contacting blood with an effective amount of (1) a compound
disclosed herein or a pharmaceutically acceptable salt, solvate or
hydrate thereof; (2) a composition comprising a compound disclosed
herein or a salt, solvate or hydrate thereof and a carrier; or (3)
a pharmaceutical composition comprising a compound disclosed herein
or a pharmaceutically acceptable salt, solvate or hydrate thereof,
and a pharmaceutically acceptable carrier.
[0176] In another embodiment, provided is a method for treating
hereditary non-spherocytic haemolytic anemia comprising
administering to a subject in need thereof a therapeutically
effective amount of (1) a compound disclosed herein or a
pharmaceutically acceptable salt, solvate or hydrate thereof; (2) a
pharmaceutical composition comprising a compound disclosed herein
or a pharmaceutically acceptable salt, solvate or hydrate thereof,
and a pharmaceutically acceptable carrier.
[0177] In another embodiment, provided is a method for treating
sickle cell anemia (e.g., by activating wild type PKR) comprising
administering to a subject in need thereof a therapeutically
effective amount of (1) a compound disclosed herein or a
pharmaceutically acceptable salt, solvate or hydrate thereof; (2) a
pharmaceutical composition comprising a compound disclosed herein
or a pharmaceutically acceptable salt, solvate or hydrate thereof,
and a pharmaceutically acceptable carrier.
[0178] In another embodiment, provided is a method for treating
hemolytic anemia (e.g., chronic hemolytic anemia caused by
phosphoglycerate kinase deficiency, Blood Cells Mol Dis, 2011;
46(3):206) comprising administering to a subject in need thereof a
therapeutically effective amount of (1) a compound disclosed herein
or a pharmaceutically acceptable salt, solvate or hydrate thereof;
(2) a pharmaceutical composition comprising a compound disclosed
herein or a pharmaceutically acceptable salt, solvate or hydrate
thereof, and a pharmaceutically acceptable carrier.
[0179] In another embodiment, provided is a method for treating
diseases or conditions that are associated with increased
2,3-diphosphoglycerate levels (e.g., liver diseases (Am J
Gastroenterol, 1987; 82(12):1283) and Parkinson's (J. Neurol,
Neurosurg, and Psychiatry 1976, 39:952) comprising administering to
a subject in need thereof a therapeutically effective amount of (1)
a compound disclosed herein or a pharmaceutically acceptable salt,
solvate or hydrate thereof; (2) a pharmaceutical composition
comprising a compound disclosed herein or a pharmaceutically
acceptable salt, solvate or hydrate thereof, and a pharmaceutically
acceptable carrier.
[0180] In another embodiment, provided is a method for treating
thalassemia (e.g., beta-thalassemia), hereditary spherocytosis,
hereditary elliptocytosis, abetalipoproteinemia (or
Bassen-Kornzweig syndrome), paroxysmal nocturnal hemoglobinuria,
acquired hemolytic anemia (e.g., congenital anemias (e.g.,
enzymopathies)), or anemia of chronic diseases comprising
administering to a subject in need thereof a therapeutically
effective amount of (1) a compound disclosed herein or a
pharmaceutically acceptable salt, solvate or hydrate thereof; (2) a
pharmaceutical composition comprising a compound disclosed herein
or a pharmaceutically acceptable salt, solvate or hydrate thereof,
and a pharmaceutically acceptable carrier.
[0181] In another embodiment, provided is a method for treating
diseases or conditions that are associated with increased
2,3-diphosphoglycerate levels (e.g., liver diseases (Am J
Gastroenterol, 1987; 82(12):1283) and Parkinson's (J. Neurol,
Neurosurg, and Psychiatry 1976, 39:952) comprising administering to
a subject in need thereof a therapeutically effective amount of (1)
a compound disclosed herein or a pharmaceutically acceptable salt,
solvate or hydrate thereof; (2) a pharmaceutical composition
comprising a compound disclosed herein or a pharmaceutically
acceptable salt, solvate or hydrate thereof, and a pharmaceutically
acceptable carrier.
[0182] Compounds and compositions described herein are activators
of PKR mutants having lower activities compared to the wild type,
thus are useful for methods of the present invention. Such
mutations in PKR can affect enzyme activity (catalytic efficiency),
regulatory properties (modulation by fructose bisphosphate
(FBP)/ATP), and/or thermostability of the enzyme. Examples of such
mutations are described in Valentini et al, JBC 2002. Some examples
of the mutants that are activated by the compounds described herein
include G332S, G364D, T384M, G37E, R479H, R479K, R486W, R532W,
R510Q, and R490W. Without being bound by theory, compounds
described herein affect the activities of PKR mutants by activating
FBP non-responsive PKR mutants, restoring thermostability to
mutants with decreased stability, or restoring catalytic efficiency
to impaired mutants. The activating activity of the present
compounds against PKR mutants may be tested following a method
described in Examples 2-5. Compounds described herein are also
activators of wild type PKR.
[0183] In an embodiment, to increase the lifetime of the red blood
cells, a compound, composition or pharmaceutical composition
described herein is added directly to whole blood or packed cells
extracorporeally or be provided to the subject (e.g., the patient)
directly (e.g., by i.p., i.v., i.m., oral, inhalation (aerosolized
delivery), transdermal, sublingual and other delivery routes).
Without being bound by theory, compounds described herein increase
the lifetime of the RBCs, thus counteract aging of stored blood, by
impacting the rate of release of 2,3-DPG from the blood. A decrease
in the level of 2,3-DPG concentration induces a leftward shift of
the oxygen-hemoglobin dissociation curve and shifts the allosteric
equilibribrium to the R, or oxygenated state, thus producing a
therapeutic inhibition of the intracellular polymerization that
underlies sickling by increasing oxygen affinity due to the 2,3-DPG
depletion, thereby stabilizing the more soluble oxy-hemoglobin.
Accordingly, in one embodiment, compounds and pharmaceutical
compositions described herein are useful as antisickling
agents.
Neoplastic Disorders
[0184] A compound or composition described herein can be used to
treat a neoplastic disorder. A "neoplastic disorder" is a disease
or disorder characterized by cells that have the capacity for
autonomous growth or replication, e.g., an abnormal state or
condition characterized by proliferative cell growth. Exemplary
neoplastic disorders include: carcinoma, sarcoma, metastatic
disorders (e.g., tumors arising from prostate, colon, lung, breast
and liver origin), hematopoietic neoplastic disorders, e.g.,
leukemias, metastatic tumors. Prevalent cancers include: breast,
prostate, colon, lung, liver, and pancreatic cancers. Treatment
with the compound may be in an amount effective to ameliorate at
least one symptom of the neoplastic disorder, e.g., reduced cell
proliferation, reduced tumor mass, etc.
[0185] The disclosed methods are useful in the prevention and
treatment of cancer, including for example, solid tumors, soft
tissue tumors, and metastases thereof. The disclosed methods are
also useful in treating non-solid cancers. Exemplary solid tumors
include malignancies (e.g., sarcomas, adenocarcinomas, and
carcinomas) of the various organ systems, such as those of lung,
breast, lymphoid, gastrointestinal (e.g., colon), and genitourinary
(e.g., renal, urothelial, or testicular tumors) tracts, pharynx,
prostate, and ovary. Exemplary adenocarcinomas include colorectal
cancers, renal-cell carcinoma, liver cancer, non-small cell
carcinoma of the lung, and cancer of the small intestine.
[0186] Without being bound by theory, applicants believe that
altered PKM2 levels characterize a subset of all types of cancers,
without regard to their cellular nature or location in the body.
Thus, the compounds and methods disclosed herein are useful to
treat any type of cancer that is characterized by altered PKM2
levels.
Cancer Combination therapies
[0187] In some embodiments, a compound described herein is
administered together with one or more additional cancer
treatments. Exemplary cancer treatments include, for example:
chemotherapy, targeted therapies such as antibody therapies,
immunotherapy, and hormonal therapy. Examples of each of these
treatments are provided below.
[0188] Chemotherapy
[0189] In some embodiments, a compound described herein is
administered with one or morechemotherapies. Chemotherapy is the
treatment of cancer with drugs that can destroy cancer cells.
"Chemotherapy" usually refers to cytotoxic drugs which affect
rapidly dividing cells in general, in contrast with targeted
therapy. Chemotherapy drugs interfere with cell division in various
possible ways, e.g., with the duplication of DNA or the separation
of newly formed chromosomes. Most forms of chemotherapy target all
rapidly dividing cells and are not specific for cancer cells,
although some degree of specificity may come from the inability of
many cancer cells to repair DNA damage, while normal cells
generally can.
[0190] Examples of chemotherapeutic agents used in cancer therapy
include, for example, antimetabolites (e.g., folic acid, purine,
and pyrimidine derivatives) and alkylating agents (e.g., nitrogen
mustards, nitrosoureas, platinum, alkyl sulfonates, hydrazines,
triazenes, aziridines, spindle poison, cytotoxic agents,
toposimerase inhibitors and others). Exemplary agents include
Aclarubicin, Actinomycin, Alitretinon, Altretamine, Aminopterin,
Aminolevulinic acid, Amrubicin, Amsacrine, Anagrelide, Arsenic
trioxide, Asparaginase, Atrasentan, Belotecan, Bexarotene,
endamustine, Bleomycin, Bortezomib, Busulfan, Camptothecin,
Capecitabine, Carboplatin, Carboquone, Carmofur, Carmustine,
Celecoxib, Chlorambucil, Chlormethine, Cisplatin, Cladribine,
Clofarabine, Crisantaspase, Cyclophosphamide, Cytarabine,
Dacarbazine, Dactinomycin, Daunorubicin, Decitabine, Demecolcine,
Docetaxel, Doxorubicin, Efaproxiral, Elesclomol, Elsamitrucin,
Enocitabine, Epirubicin, Estramustine, Etoglucid, Etoposide,
Floxuridine, Fludarabine, Fluorouracil (5FU), Fotemustine,
Gemcitabine, Gliadel implants, Hydroxycarbamide, Hydroxyurea,
Idarubicin, Ifosfamide, Irinotecan, Irofulven, Ixabepilone,
Larotaxel, Leucovorin, Liposomal doxorubicin, Liposomal
daunorubicin, Lonidamine, Lomustine, Lucanthone, Mannosulfan,
Masoprocol, Melphalan, Mercaptopurine, Mesna, Methotrexate, Methyl
aminolevulinate, Mitobronitol, Mitoguazone, Mitotane, Mitomycin,
Mitoxantrone, Nedaplatin, Nimustine, Oblimersen, Omacetaxine,
Ortataxel, Oxaliplatin, Paclitaxel, Pegaspargase, Pemetrexed,
Pentostatin, Pirarubicin, Pixantrone, Plicamycin, Porfimer sodium,
Prednimustine, Procarbazine, Raltitrexed, Ranimustine, Rubitecan,
Sapacitabine, Semustine, Sitimagene ceradenovec, Satraplatin,
Streptozocin, Talaporfin, Tegafur-uracil, Temoporfin, Temozolomide,
Teniposide, Tesetaxel, Testolactone, Tetranitrate, Thiotepa,
Tiazofurin, Tioguanine, Tipifarnib, Topotecan, Trabectedin,
Triaziquone, Triethylenemelamine, Triplatin, Tretinoin, Treosulfan,
Trofosfamide, Uramustine, Valrubicin, Verteporfin, Vinblastine,
Vincristine, Vindesine, Vinflunine, Vinorelbine, Vorinostat,
Zorubicin, and other cytostatic or cytotoxic agents described
herein.
[0191] Because some drugs work better together than alone, two or
more drugs are often given at the same time. Often, two or more
chemotherapy agents are used as combination chemotherapy. In some
embodiments, the chemotherapy agents (including combination
chemotherapy) can be used in combination with a compound described
herein.
[0192] Targeted Therapy
[0193] In some embodiments, a compound described herein is
administered with one or more targeted therapies. Targeted therapy
constitutes the use of agents specific for the deregulated proteins
of cancer cells. Small molecule targeted therapy drugs are
generally inhibitors of enzymatic domains on mutated,
overexpressed, or otherwise critical proteins within the cancer
cell. Prominent examples are the tyrosine kinase inhibitors such as
Axitinib, Bosutinib, Cediranib, dasatinib, erlotinib, imatinib,
gefitinib, lapatinib, Lestaurtinib, Nilotinib, Semaxanib,
Sorafenib, Sunitinib, and Vandetanib, and also cyclin-dependent
kinase inhibitors such as Alvocidib and Seliciclib. Monoclonal
antibody therapy is another strategy in which the therapeutic agent
is an antibody which specifically binds to a protein on the surface
of the cancer cells. Examples include the anti-HER2/neu antibody
trastuzumab (HERCEPTIN.RTM.) typically used in breast cancer, and
the anti-CD20 antibody rituximab and Tositumomab typically used in
a variety of B-cell malignancies. Other exemplary antibodies
include Cetuximab, Panitumumab, Trastuzumab, Alemtuzumab,
Bevacizumab, Edrecolomab, and Gemtuzumab. Exemplary fusion proteins
include Aflibercept and Denileukin diftitox. In some embodiments,
the targeted therapy can be used in combination with a compound
described herein.
[0194] Targeted therapy can also involve small peptides as "homing
devices" which can bind to cell surface receptors or affected
extracellular matrix surrounding the tumor. Radionuclides which are
attached to these peptides (e.g., RGDs) eventually kill the cancer
cell if the nuclide decays in the vicinity of the cell. An example
of such therapy includes BEXXAR.RTM..
[0195] Immunotherapy
[0196] In some embodiments, a compound described herein is
administered with one or more immunotherapies. Cancer immunotherapy
refers to a diverse set of therapeutic strategies designed to
induce the patient's own immune system to fight the tumor.
Contemporary methods for generating an immune response against
tumors include intravesicular BCG immunotherapy for superficial
bladder cancer, and use of interferons and other cytokines to
induce an immune response in renal cell carcinoma and melanoma
patients.
[0197] Allogeneic hematopoietic stem cell transplantation can be
considered a form of immunotherapy, since the donor's immune cells
will often attack the tumor in a graft-versus-tumor effect. In some
embodiments, the immunotherapy agents can be used in combination
with a compound described herein.
[0198] Hormonal Therapy
[0199] In some embodiments, a compound described herein is
administered with one or more hormonal therapies. The growth of
some cancers can be inhibited by providing or blocking certain
hormones. Common examples of hormone-sensitive tumors include
certain types of breast and prostate cancers. Removing or blocking
estrogen or testosterone is often an important additional
treatment. In certain cancers, administration of hormone agonists,
such as progestogens may be therapeutically beneficial. In some
embodiments, the hormonal therapy agents can be used in combination
with a compound described herein.
Obesity and Fat Disorders
[0200] A compound or composition described herein can be used to
treat or prevent obesity, e.g., in a human subject, e.g., a child
or adult subject. "Obesity" refers to a condition in which a
subject has a body mass index of greater than or equal to 30. Many
compounds described herein can be used to treat or prevent an
over-weight condition. "Over-weight" refers to a condition in which
a subject has a body mass index of greater or equal to 25.0. The
body mass index (BMI) and other definitions are according to the
"NIH Clinical Guidelines on the Identification and Evaluation, and
Treatment of Overweight and Obesity in Adults" (1998). Treatment
with the compound may be in an amount effective to alter the weight
of the subject, e.g., by at least 2, 5, 7, 10, 12, 15, 20, 25, 30,
25, 40, 45, 50, or 55%. Treatment with a compound may be in an
amount effective to reduce the body mass index of the subject,
e.g., to less than 30, 28, 27, 25, 22, 20, or 18. The compounds can
be used to treat or prevent aberrant or inappropriate weight gain,
metabolic rate, or fat deposition, e.g., anorexia, bulimia,
obesity, diabetes, or hyperlipidemia (e.g., elevated triglycerides
and/or elevated cholesterol), as well as disorders of fat or lipid
metabolism.
[0201] A compound or composition described herein can be
administered to treat obesity associated with Prader-Willi Syndrome
(PWS). PWS is a genetic disorder associated with obesity (e.g.,
morbid obesity).
[0202] A compound or composition described herein can be used to
reduce body fat, prevent increased body fat, reduce cholesterol
(e.g., total cholesterol and/or ratios of total cholesterol to HDL
cholesterol), and/or reduce appetite in individuals having PWS
associated obesity, and/or reduce comorbidities such as diabetes,
cardiovascular disease, and stroke.
Compositions and Routes of Administration
[0203] The compositions delineated herein include the compounds
delineated herein (e.g., a compound described herein), as well as
additional therapeutic agents if present, in amounts effective for
achieving a modulation of disease or disease symptoms, including
those described herein.
[0204] The term "pharmaceutically acceptable carrier or adjuvant"
refers to a carrier or adjuvant that may be administered to a
patient, together with a compound provided herewith, and which does
not destroy the pharmacological activity thereof and is nontoxic
when administered in doses sufficient to deliver a therapeutic
amount of the compound.
[0205] Pharmaceutically acceptable carriers, adjuvants and vehicles
that may be used in the pharmaceutical compositions provided
herewith include, but are not limited to, ion exchangers, alumina,
aluminum stearate, lecithin, self-emulsifying drug delivery systems
(SEDDS) such as d-.alpha.-tocopherol polyethyleneglycol 1000
succinate, surfactants used in pharmaceutical dosage forms such as
Tweens or other similar polymeric delivery matrices, serum
proteins, such as human serum albumin, buffer substances such as
phosphates, glycine, sorbic acid, potassium sorbate, partial
glyceride mixtures of saturated vegetable fatty acids, water, salts
or electrolytes, such as protamine sulfate, disodium hydrogen
phosphate, potassium hydrogen phosphate, sodium chloride, zinc
salts, colloidal silica, magnesium trisilicate, polyvinyl
pyrrolidone, cellulose-based substances, polyethylene glycol,
sodium carboxymethylcellulose, polyacrylates, waxes,
polyethylene-polyoxypropylene-block polymers, polyethylene glycol
and wool fat. Cyclodextrins such as .alpha.-, .beta.-, and
.gamma.-cyclodextrin, or chemically modified derivatives such as
hydroxyalkylcyclodextrins, including 2- and
3-hydroxypropyl-.beta.-cyclodextrins, or other solubilized
derivatives may also be advantageously used to enhance delivery of
compounds of the formulae described herein.
[0206] The pharmaceutical compositions provided herewith may be
administered orally, parenterally, by inhalation spray, topically,
rectally, nasally, buccally, vaginally or via an implanted
reservoir, preferably by oral administration or administration by
injection. The pharmaceutical compositions provided herewith may
contain any conventional non-toxic pharmaceutically-acceptable
carriers, adjuvants or vehicles. In some cases, the pH of the
formulation may be adjusted with pharmaceutically acceptable acids,
bases or buffers to enhance the stability of the formulated
compound or its delivery form. The term parenteral as used herein
includes subcutaneous, intracutaneous, intravenous, intramuscular,
intraarticular, intraarterial, intrasynovial, intrasternal,
intrathecal, intralesional and intracranial injection or infusion
techniques.
[0207] The pharmaceutical compositions may be in the form of a
sterile injectable preparation, for example, as a sterile
injectable aqueous or oleaginous suspension. This suspension may be
formulated according to techniques known in the art using suitable
dispersing or wetting agents (such as, for example, Tween 80) and
suspending agents. The sterile injectable preparation may also be a
sterile injectable solution or suspension in a non-toxic
parenterally acceptable diluent or solvent, for example, as a
solution in 1,3-butanediol. Among the acceptable vehicles and
solvents that may be employed are mannitol, water, Ringer's
solution and isotonic sodium chloride solution. In addition,
sterile, fixed oils are conventionally employed as a solvent or
suspending medium. For this purpose, any bland fixed oil may be
employed including synthetic mono- or diglycerides. Fatty acids,
such as oleic acid and its glyceride derivatives are useful in the
preparation of injectables, as are natural
pharmaceutically-acceptable oils, such as olive oil or castor oil,
especially in their polyoxyethylated versions. These oil solutions
or suspensions may also contain a long-chain alcohol diluent or
dispersant, or carboxymethyl cellulose or similar dispersing agents
which are commonly used in the formulation of pharmaceutically
acceptable dosage forms such as emulsions and or suspensions. Other
commonly used surfactants such as Tweens or Spans and/or other
similar emulsifying agents or bioavailability enhancers which are
commonly used in the manufacture of pharmaceutically acceptable
solid, liquid, or other dosage forms may also be used for the
purposes of formulation.
[0208] The pharmaceutical compositions provided herewith may be
orally administered in any orally acceptable dosage form including,
but not limited to, capsules, tablets, emulsions and aqueous
suspensions, dispersions and solutions. In the case of tablets for
oral use, carriers which are commonly used include lactose and corn
starch. Lubricating agents, such as magnesium stearate, are also
typically added. For oral administration in a capsule form, useful
diluents include lactose and dried corn starch. When aqueous
suspensions and/or emulsions are administered orally, the active
ingredient may be suspended or dissolved in an oily phase is
combined with emulsifying and/or suspending agents. If desired,
certain sweetening and/or flavoring and/or coloring agents may be
added.
[0209] The pharmaceutical compositions provided herewith may also
be administered in the form of suppositories for rectal
administration. These compositions can be prepared by mixing a
compound provided herewith with a suitable non-irritating excipient
which is solid at room temperature but liquid at the rectal
temperature and therefore will melt in the rectum to release the
active components. Such materials include, but are not limited to,
cocoa butter, beeswax and polyethylene glycols.
[0210] Topical administration of the pharmaceutical compositions
provided herewith is useful when the desired treatment involves
areas or organs readily accessible by topical application. For
application topically to the skin, the pharmaceutical composition
should be formulated with a suitable ointment containing the active
components suspended or dissolved in a carrier. Carriers for
topical administration of the compounds provided herewith include,
but are not limited to, mineral oil, liquid petroleum, white
petroleum, propylene glycol, polyoxyethylene polyoxypropylene
compound, emulsifying wax and water. Alternatively, the
pharmaceutical composition can be formulated with a suitable lotion
or cream containing the active compound suspended or dissolved in a
carrier with suitable emulsifying agents. Suitable carriers
include, but are not limited to, mineral oil, sorbitan
monostearate, polysorbate 60, cetyl esters wax, cetearyl alcohol,
2-octyldodecanol, benzyl alcohol and water. The pharmaceutical
compositions provided herewith may also be topically applied to the
lower intestinal tract by rectal suppository formulation or in a
suitable enema formulation. Topically-transdermal patches are also
included.
[0211] The pharmaceutical compositions provided herewith may be
administered by nasal aerosol or inhalation. Such compositions are
prepared according to techniques well-known in the art of
pharmaceutical formulation and may be prepared as solutions in
saline, employing benzyl alcohol or other suitable preservatives,
absorption promoters to enhance bioavailability, fluorocarbons,
and/or other solubilizing or dispersing agents known in the
art.
[0212] When the compositions provided herewith comprise a
combination of a compound of the formulae described herein and one
or more additional therapeutic or prophylactic agents, both the
compound and the additional agent should be present at dosage
levels of between about 1 to 100%, and more preferably between
about 5 to 95% of the dosage normally administered in a monotherapy
regimen. The additional agents may be administered separately, as
part of a multiple dose regimen, from the compounds provided
herewith. Alternatively, those agents may be part of a single
dosage form, mixed together with the compounds provided herewith in
a single composition.
[0213] The compounds described herein can, for example, be
administered by injection, intravenously, intraarterially,
subdermally, intraperitoneally, intramuscularly, or subcutaneously;
or orally, buccally, nasally, transmucosally, topically, in an
ophthalmic preparation, or by inhalation, with a dosage ranging
from about 0.5 to about 100 mg/kg of body weight, alternatively
dosages between 1 mg and 1000 mg/dose, every 4 to 120 hours, or
according to the requirements of the particular drug. The methods
herein contemplate administration of an effective amount of
compound or compound composition to achieve the desired or stated
effect. Typically, the pharmaceutical compositions provided
herewith will be administered from about 1 to about 6 times per day
or alternatively, as a continuous infusion. Such administration can
be used as a chronic or acute therapy. The amount of active
ingredient that may be combined with the carrier materials to
produce a single dosage form will vary depending upon the host
treated and the particular mode of administration. A typical
preparation will contain from about 5% to about 95% active compound
(w/w). Alternatively, such preparations contain from about 20% to
about 80% active compound.
[0214] Lower or higher doses than those recited above may be
required. Specific dosage and treatment regimens for any particular
patient will depend upon a variety of factors, including the
activity of the specific compound employed, the age, body weight,
general health status, sex, diet, time of administration, rate of
excretion, drug combination, the severity and course of the
disease, condition or symptoms, the patient's disposition to the
disease, condition or symptoms, and the judgment of the treating
physician.
[0215] Upon improvement of a patient's condition, a maintenance
dose of a compound, composition or combination provided herewith
may be administered, if necessary. Subsequently, the dosage or
frequency of administration, or both, may be reduced, as a function
of the symptoms, to a level at which the improved condition is
retained when the symptoms have been alleviated to the desired
level. Patients may, however, require intermittent treatment on a
long-term basis upon any recurrence of disease symptoms.
Patient Selection and Monitoring
[0216] The compounds described herein can modulate PKM2.
Accordingly, a patient and/or subject can be selected for treatment
using a compound described herein by first evaluating the patient
and/or subject to determine whether the subject is in need of
modulation of PKM2, and if the subject is determined to be in need
of modulation of PKM2, then administering to the subject a compound
described herein.
[0217] A subject can be evaluated as being in need of modulation of
PKM2 using methods known in the art, e.g., by measuring the
presence and/or activity of PKM2 in the patient. In some
embodiments, the activity and/or level of PKM2 is evaluated in the
cancer.
[0218] A patient receiving a compound described herein can be
monitored, for example, for improvement in the condition and/or
adverse effects. Improvement of a patient's condition can be
evaluated, for example, by monitoring the growth, absence of
growth, or regression of the cancer (e.g., a tumor). In some
embodiments, the patient is evaluated using a radiological assay or
evaluation of hemolytic parameters.
[0219] The compounds described herein can activate mutant PKRs.
Accordingly, a patient and/or subject can be selected for treatment
using a compound described herein by first evaluating the patient
and/or subject to determine whether the subject carries a mutation
in PKR (for examples, one of the mutations as described herein),
and if the subject is determined to be carrying a mutation in PKR
thus is in need of activation of the activity of the mutant PKR,
then optionally administering to the subject a compound described
herein. A subject can be evaluated as carrying a mutation in PKR
using methods known in the art.
EXAMPLES
[0220] In the following examples, the reagents (chemicals) were
purchased from commercial sources (such as Alfa, Acros, Sigma
Aldrich, TCI and Shanghai Chemical Reagent Company), and used
without further purification. Nuclear magnetic resonance (NMR)
spectra were obtained on a Brucker AMX-400 NMR (Brucker,
Switzerland). Chemical shifts were reported in parts per million
(ppm, .delta.) downfield from tetramethylsilane. Mass spectra were
given with electrospray ionization (ESI) from a Waters LCT TOF Mass
Spectrometer (Waters, USA). Microwave reactions were run on an
Initiator 2.5 Microwave Synthesizer (Biotage, Sweden).
ABBREVIATIONS LIST
General
[0221] anhy. anhydrous aq. aqueous Min minute(s)
hr Hour (s)
[0222] mL milliliter mmol millimole(s) mol mole(s) sat saturated
s.m. starting material MS mass spectrometry NMR nuclear magnetic
resonance r.t. (rt) room temperature TLC thin layer chromatography
HPLC high-performance liquid chromatography
Spectrum
[0223] Hz hertz .delta. chemical shift J coupling constant s
singlet d doublet t triplet q quartet m multiplet br broad qd
quartet of doublets dquin doublet of quintets dd doublet of
doublets dt doublet of triplets
Solvents and Reagents
[0224] CHCl.sub.3 chloroform [0225] DAST Diethylaminosulfur
trifluoride [0226] DCM dichloromethane [0227] DMF dimethylformamide
[0228] Et.sub.2O diethyl ether [0229] EtOH ethyl alcohol [0230]
EtOAc ethyl acetate [0231] MeOH methyl alcohol [0232] MeCN
acetonitrile [0233] PE petroleum ether [0234] THF tetrahydrofuran
[0235] AcOH acetic acid [0236] HCl hydrochloric acid [0237]
H.sub.2SO.sub.4 sulfuric acid [0238] NH.sub.4Cl ammonium chloride
[0239] KOH potassium hydroxide [0240] NaOH sodium hydroxide [0241]
K.sub.2CO.sub.3 potassium carbonate [0242] Na.sub.2CO.sub.3 sodium
carbonate [0243] TFA trifluoroacetic acid [0244] Na.sub.2SO.sub.4
sodium sulfate [0245] NaBH.sub.4 sodium borohydride [0246]
NaHCO.sub.3 sodium bicarbonate [0247] LiHMDS lithium
hexamethyldisilylamide [0248] NaHMDS sodium hexamethyldisilylamide
[0249] LAH lithium aluminum hydride [0250] NaBH.sub.4 sodium
borohydride [0251] LDA lithium diisopropylamide [0252] Et.sub.3N
triethylamine [0253] Py pyridine [0254] DMAP
4-(dimethylamino)pyridine [0255] DIPEA N,N-diisopropylethylamine
[0256] DMP Dess Martin periodinane--1,1,1-Triacetoxy-1,1- [0257]
NH.sub.4OH dihydro-1,2-benziodoxol-3(1H)-one ammonium hydroxide
[0258] EDCI 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide [0259]
HOBt 1-hydroxybenzotriazole [0260] HBTU
2-(1H-Benzotriazole-1-yl)-1,1,3,3-tetramethyluronium
hexafluorophosphate [0261] HATU
O-(7-azabenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium [0262]
Xphos 2-Dicyclohexylphosphino-2',4',6'-triisopropylbiphenyl [0263]
BINAP 2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl [0264] Togni
3,3-Dimethyl-1-(trifluoromethyl)-1,2-benziodoxole reagent [0265]
BOMCl (chloromethoxy)methyl)benzene [0266] AIBN
2,2'-Azobis(2-methylpropionitrile) [0267] MTBE Methyl tertButyl
ether [0268] m-CPBA 3-Chloroperoxybenzoic acid
Example 1
PKM2 Assay
Procedure:
[0268] [0269] PKM2 stock enzyme solution was diluted in Reaction
Buffer [0270] 2 .mu.L of compound was added into each well first,
and then 180 .mu.L of the Reaction Mix was added. [0271] Reaction
mixture with compound (without ADP) were incubated for 30 minutes
at 4.degree. C. [0272] Plates were re-equilibrated to room
temperature prior to adding 20 .mu.L ADP to initiate the reaction.
[0273] Reaction progress was measured as changes in absorbance at
340 nm wavelength at room temperature (25.degree. C.)
Reaction Mix:
[0274] PKM2 (50 ng/well), ADP (0.7 mM), PEP (0.15 mM), NADH (180
.mu.M), LDH (2 units) in Reaction Buffer
Reaction Buffer:
[0275] 100 mM KCl, 50 mM Tris pH 7.5, 5 mM MgCl2, 1 mM DTT, 0.03%
BSA.
Example 2
PKR Mutant Assay
Procedure
[0276] PKR or PKR mutant enzyme solution was diluted in assay
buffer. [0277] 2 .mu.L of test compound was added into wells first,
and then 180 .mu.L reaction mix was added. [0278] Reactions mixture
with test compound was assembled except for ADP, and plates were
stored for 60 minutes at room temperature. [0279] 20 uL ADP was
added to start reaction at room temperature and reaction progress
was measured as changes in absorbance at 340 nm wavelength at room
temperature.
[0280] Test Compound Preparation: [0281] Test compound stock was
made at 100.times. concentration in 100% DMSO (10 mM) [0282] 1 to 3
dilutions were made for 11 points (i.e. 50 .mu.l of first
concentration added to 100 .mu.l 100% DMSO to yield 3.33 mM, 50
.mu.l of this added to 100 .mu.l DMSO to yield 1.11 mM, and so
forth) [0283] 1 to 100 dilution into assay (2 .mu.l in 200 .mu.l)
yielded starting concentration of 100 .mu.M, decreasing 3 fold for
11 points.
Assay Buffer:
[0284] 100 mM KCl, 50 mM Tris 7.5, 5 mM MgCl.sub.2, 1 mM DTT, 0.03%
BSA
Reaction Mixture:
[0285] PKR mutant enzyme: 80-400 ng/well; ADP: 0.22-1.65 mM; PEP:
0.1-0.5 mM; NADH:180 uM; LDH: 0.5 units (Sigma#59023); DTT: 1 mM;
BSA: 0.03%.
Example 3
PKR WT Single Point Percent Activation Assay
[0286] A compound described herein was diluted with DMSO and tested
at 1 .mu.M concentration. The enzyme was diluted in 1.times.
Buffer: (100 mM KCl, 50 mM Tris 7.5, 5 mM MgCl.sub.2, 1 mM DTT,
0.03% BSA). 2 .mu.L of compound solution was first added into
wells, and then 180 .mu.L of enzyme solution was added. Assays were
assembled except for ADP, and plates were stored for 60 minutes at
RT. 20 .mu.L ADP was added to start the assay and assay output was
evaluated using OD340 at SpectraMax. The assay was run at room
temperature.
Final Concentration:
[0287] PKR wt (100 ng/well), Tris pH 7.5 (50 mM), KCl (100 mM),
MgCl.sub.2 (5 mM), ADP (0.48 mM), PEP (0.15 mM), NADH (180 .mu.M),
LDH (0.5 units, Sigma 59023), DTT (1 mM) and BSA (0.03%).
Example 4
PKR R510Q Single Point Percent Activation Assay
[0288] A compound described herein was diluted with DMSO and tested
at 1 .mu.M concentration. The enzyme was diluted in 1.times.
Buffer: (100 mM KCl, 50 mM Tris 7.5, 5 mM MgCl.sub.2, 1 mM DTT,
0.03% BSA). 2 .mu.L of compound solution was first added into
wells, and then 180 .mu.L of enzyme solution was added. Assays were
assembled except for ADP, and plates were stored for 60 minutes at
RT. 20 .mu.L ADP was added to start the assay and assay output was
evaluated using OD340 at SpectraMax. The assay was run at room
temperature.
Final Concentration:
[0289] PKR R510Q (40 ng/well), Tris pH 7.5 (50 mM), KCl (100 mM),
MgCl.sub.2 (5 mM), ADP (0.2 mM), PEP (0.11 mM), NADH (180 .mu.M),
LDH (0.5 units, Sigma 59023), DTT (1 mM) and BSA (0.03%).
Example 5
PKR R532W Single Point Percent Activation Assay
[0290] A compound described herein was diluted with DMSO and tested
at 1 .mu.M concentration. The enzyme was diluted in 1.times.
Buffer: (100 mM KCl, 50 mM Tris 7.5, 5 mM MgCl.sub.2, 1 mM DTT,
0.03% BSA). 2 .mu.L of compound solution was first added into
wells, and then 180 .mu.L of enzyme solution was added. Assays were
assembled except for ADP, and plates were stored for 60 minutes at
RT. 20 .mu.L ADP was added to start the assay and assay output was
evaluated using OD340 at SpectraMax. The assay was run at room
temperature.
Final Concentration:
[0291] PKR R532W (100 ng/well), Tris pH 7.5 (50 mM), KCl (100 mM),
MgCl.sub.2 (5 mM), ADP (0.36 mM), PEP (0.1 mM), NADH (180 .mu.M),
LDH (0.5 units, Sigma 59023), DTT (1 mM) and BSA (0.03%).
Example 6
General Procedure 1: 1A
##STR00395##
[0292] Step A: 4-(quinoline-8-sulfonamido)benzoic acid (1A)
##STR00396##
[0294] To a solution of 4-aminobenzoic acid (10 g, 73 mmol) in 100
mL of anhydrous THF was added pyridine (1.15 g, 146 mmol), and
quinoline-8-sulfonyl chloride (20 g, 88 mmol) at 0.degree. C. The
resulting mixture was stirred at 70.degree. C. overnight. After
filtration, the residue was washed with EtOH and 14 g of title
compound was obtained as pure product.
[0295] .sup.1H NMR (DMSO-d.sub.6) .delta.: 10.71 (s, 1H), 9.12 (dd,
J=4.2, 1.7 Hz, 1H), 8.47 (dd, J=7.5, 1.3 Hz, 1H), 8.51 (dd, J=8.3,
1.9 Hz, 1H), 8.29 (dd, J=8.2, 1.2 Hz, 1H), 7.62-7.79 (m, 4H),
7.14-7.22 (m, 2H). LC-MS: m/z 329.3 (M+H).sup.+
General Procedure 2
##STR00397##
[0296] Step A:
[0297] To a solution of the corresponding Aryl Bromide (1.0 eq.) in
anhydrous THF was added a solution of n-BuLi in THF (1.05 eq.)
dropwise at -78.degree. C. After the addition, the mixture was
stirred at -78.degree. C. for about 0.5 hour. Then a solution of
Boc-4-piperidone in THF was added dropwise via a syringe at
-78.degree. C. After the addition, the resulting mixture was
stirred at -78.degree. C. under N.sub.2 for 2 h, then allowed to
warm to r.t. The reaction mixture was quenched by satd. NH.sub.4Cl
solution, the resulting mixture was extracted with EtOAc (50 mL, 30
mL). The combined organic phase was washed with brine, dried over
anhydrous Na.sub.2SO.sub.4 and concentrated in vacuo. The residue
was purified by column chromatography (PE/EtOAc) to afford compound
2B.
Step B:
[0298] To a solution of compound 2 (1 eq.) in dioxane, was added a
solution of HCl in dioxane (3 eq.), the reaction mixture was
stirred at room temperature for about 2 hours, when LCMS detected
no s.m. The reaction mixture was concentrated to afford the desired
product 2C.
Step C:
[0299] To a round-bottomed flask was added compound 2C (1 eq.), DMF
(5 mL), DIPEA (3.0 eq.), HBTU (1.2 eq.), and 1A (1 eq.)
sequentially. The reaction mixture was stirred at room temperature
overnight or until TLC indicated that s.m. was consumed. The
mixture was diluted with brine, extracted with ethyl acetate, the
organic layer was dried with anhydrous Na.sub.2SO.sub.4, filtered,
and filtrate was concentrated. The desired product 2D was purified
by a standard method.
Compound 142
General Procedure 2, Step C
N-(4-(4-(3-fluorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-
-sulfonamide
##STR00398##
[0301] .sup.1H NMR (CHLOROFORM-d) .delta. 9.17 (dd, J=4.3, 1.7 Hz,
1H), 8.56 (s, 1H), 8.38 (dd, J=7.3, 1.4 Hz, 1H), 8.32 (dd, J=8.4,
1.7 Hz, 1H), 8.06 (dd, J=8.2, 1.3 Hz, 1H), 7.69-7.57 (m, 2H), 7.34
(td, J=8.1, 6.2 Hz, 1H), 7.25-7.15 (m, 4H), 7.14-7.07 (m, 2H), 6.99
(tdd, J=8.2, 2.5, 0.8 Hz, 1H), 4.60 (s, 1H), 3.60 (s, 1H), 3.47 (s,
1H), 3.26 (s, 1H), 2.06 (s, 1H), 1.82 (s, 2H), 1.68 (d, J=9.1 Hz,
2H). LC-MS: m/z 506.6 (M+H).sup.+.
Compound 126
General Procedure 2, Step C
N-(4-(4-hydroxy-4-(2-(trifluoromethyl)phenyl)piperidine-1-carbonyl)phenyl)-
quinoline-8-sulfonamide
##STR00399##
[0303] .sup.1H NMR (CHLOROFORM-d) .delta. 9.17 (dd, J=1.8, 4.1 Hz,
1H), 8.57 (br. s., 1H), 8.42-8.30 (m, 2H), 8.06 (dd, J=1.2, 8.2 Hz,
1H), 7.80 (d, J=7.9 Hz, 1H), 7.67-7.47 (m, 4H), 7.47-7.36 (m, 1H),
7.16-7.07 (m, 4H), 4.61 (br. s., 1H), 3.58-3.50 (m, 4H), 2.30-1.85
(m, 4H). LC-MS: m/z 556.5 (M+H).sup.+
Compound 127
General Procedure 2, Step C
N-(4-(4-(2-ethylphenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8--
sulfonamide
##STR00400##
[0305] .sup.1H NMR (CHLOROFORM-d) .delta. 9.18 (dd, J=4.3 Hz, J=1.6
Hz, 1H), 8.63 (br. s., 1H), 8.31-8.43 (m, 2H), 8.07 (dd, J=8.4 Hz,
J=1.3 Hz, 1H), 7.60-7.69 (m, 2H), 7.30-7.33 (m, 2H), 7.23-7.27 (m,
1H), 7.14-7.23 (m, 3H), 7.07-7.13 (m, 2H), 4.58 (br. s., 1H), 3.58
(br. s., 2H), 3.33 (br. s., 1H), 3.01 (q, J=7.6 Hz, 2H), 2.03 (d,
J=5.9 Hz, 1H), 1.93 (br. s., 2H), 1.69 (br. s., 2H), 1.25 (t, J=7.5
Hz, 3H). LC-MS: m/z 516.1 (M+H).sup.+
Compound 138
General Procedure 2, Step C
N-(4-(4-(4-fluoro-2-methylphenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)qu-
inoline-8-sulfonamide
##STR00401##
[0307] .sup.1H NMR (CHLOROFORM-d) .delta. 9.14 (dd, J=1.6, 4.3 Hz,
1H), 8.62 (br. s., 1H), 8.39-8.24 (m, 2H), 8.04 (dd, J=1.3, 8.4 Hz,
1H), 7.66-7.52 (m, 2H), 7.25-7.02 (m, 5H), 6.86-6.70 (m, 2H), 4.45
(br. s., 1H), 3.50 (br. s., 2H), 3.33-3.20 (m, 1H), 2.52 (s, 3H),
2.05 (d, J=9.1 Hz, 1H), 1.96 (br. s., 2H), 1.84 (br. s., 2H).
LC-MS: m/z 520.6 (M+H).sup.+
Compound 150
General Procedure 2, Step C
N-(4-(4-hydroxy-4-(2-(trifluoromethoxy)phenyl)piperidine-1-carbonyl)phenyl-
)quinoline-8-sulfonamide
##STR00402##
[0309] .sup.1H NMR (CHLOROFORM-d) .delta. 9.16 (dd, J=1.6, 4.3 Hz,
1H), 8.61 (br. s., 1H), 8.42-8.26 (m, 2H), 8.05 (dd, J=1.2, 8.2 Hz,
1H), 7.67-7.49 (m, 3H), 7.36-7.06 (m, 7H), 4.55 (br. s., 1H), 3.54
(br. s., 1H), 3.48 (s, 2H), 3.24 (br. s., 1H), 1.83 (br. s., 2H),
1.76 (br. s., 2H). LC-MS: m/z 572.6 (M+H).sup.+
Compound 199
General Procedure 2, Step C
N-(4-(4-hydroxy-4-(3-(trifluoromethyl)phenyl)piperidine-1-carbonyl)phenyl)-
quinoline-8-sulfonamide
##STR00403##
[0311] .sup.1H NMR (CHLOROFORM-d) .delta. 9.15 (dd, J=1.6, 4.3 Hz,
1H), 8.62 (br. s., 1H), 8.41-8.27 (m, 2H), 8.10-8.01 (m, 1H), 7.72
(s, 1H), 7.68-7.41 (m, 5H), 7.23-7.15 (m, 2H), 7.15-7.02 (m, 2H),
4.54 (br. s., 1H), 3.57 (br. s., 1H), 3.47 (s, 1H), 3.23 (br. s.,
1H), 2.12-1.91 (m, 2H), 1.80 (hr. s., 2H), 1.68 (br. s., 1H).
LC-MS: m/z 556.6 (M+H).sup.+
Compound 177
General Procedure 2, Step C
N-(4-(4-(3-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-
-sulfonamide
##STR00404##
[0313] .sup.1H NMR (CHLOROFORM-d) .delta. 9.13 (dd, J=1.6, 4.3 Hz,
1H), 8.63 (br. s., 1H), 8.31 (dd, J=1.5, 10.6 Hz, 1H), 8.37-8.23
(m, 1H), 8.03 (dd, J=1.2, 8.2 Hz, 1H), 7.65-7.51 (m, 2H), 7.44-7.35
(m, 1H), 7.27-7.10 (m, 5H), 7.10-7.01 (m, 2H), 4.45 (br. s., 1H),
3.59-3.29 (m, 2H), 3.17 (br. s., 1H), 1.98-1.61 (br. s., 5H).
LC-MS: m/z 522.5 (M+H).sup.+
Compound 194
General Procedure 2, Step C
N-(4-(4-(4-fluorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-
-sulfonamide
##STR00405##
[0315] .sup.1H NMR (CHLOROFORM-d) .delta. 9.16 (dd, J=1.8, 4.1 Hz,
1H), 8.58 (br. s., 1H), 8.42-8.24 (m, 2H), 8.06 (dd, J=1.5, 8.2 Hz,
1H), 7.68-7.55 (m, 2H), 7.47-7.36 (m, 2H), 7.24-7.16 (m, 2H),
7.13-6.97 (m, 4H), 3.50 (s, 3H), 3.19 (s, 1H), 2.06 (s, 1H), 1.79
(br. s., 3H). LC-MS: m/z 506.6 (M+H).sup.+
Compound 245
General Procedure 2, Step C
N-(4-(4-hydroxy-4-(3-(trifluoromethoxy)phenyl)piperidine-1-carbonyl)phenyl-
)quinoline-8-sulfonamide
##STR00406##
[0317] .sup.1H NMR (CHLOROFORM-d) .delta. 9.16 (dd, J=1.8, 4.4 Hz,
1H), 8.67 (br. s., 1H), 8.42-8.24 (m, 2H), 8.10-8.00 (m, 1H),
7.68-7.53 (m, 2H), 7.42-7.29 (m, 3H), 7.24-7.03 (m, 5H), 4.55 (br.
s., 1H), 3.57-3.23 (br. s., 3H), 2.02-1.80 (br. s., 5H). LC-MS: m/z
572.6 (M+H).sup.+
Compound 122
General Procedure 2, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-
-sulfonamide
##STR00407##
[0319] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.15-9.21 (m, 1H), 8.58
(br. s., 1H), 8.39 (dd, J=7.3, 1.3 Hz, 1H), 8.32 (dd, J=8.3, 1.6
Hz, 1H), 8.06 (dd, J=8.2, 1.2 Hz, 1H), 7.59-7.68 (m, 2H), 7.48-7.54
(m, 1H), 7.39 (dd, J=7.5, 1.6 Hz, 1H), 7.24-7.29 (m, 2H), 7.18-7.23
(m, 2H), 7.07-7.14 (m, 2H), 3.58-3.29 (br. s., 4H), 2.34-1.97 (br.
m., 4H). LC-MS: m/z 523.1 (M+H).sup.+
Compound 165
General Procedure 2, Step C
N-(4-(4-(2-fluorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-
-sulfonamide
##STR00408##
[0321] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (dd, J=4.3, 1.8 Hz,
1H), 8.59 (br. s., 1H), 8.37 (dd, J=7.4, 1.4 Hz, 1H), 8.31 (dd,
J=8.4, 1.6 Hz, 1H), 8.05 (dd, J=8.3, 1.3 Hz, 1H), 7.56-7.67 (m,
2H), 7.45 (td, J=8.0, 1.8 Hz, 1H), 7.24-7.32 (m, 1H), 7.17-7.23 (m,
2H), 7.00-7.17 (m, 4H), 4.56 (br. s., 1H), 3.54 (br. s., 2H), 3.25
(br. s., 1H), 2.44 (br. s., 1H), 2.25 (br. s., 1H), 2.1 (s, 1H),
1.85 (s, 1H). LC-MS: m/z 506.6 (M+H).sup.+
Compound 184
General Procedure 2, Step C
N-(4-(4-hydroxy-4-(2-methoxyphenyl)piperidine-1-carbonyl)phenyl)quino
line-8-sulfonamide
##STR00409##
[0323] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (br. s., 1H), 8.59
(br. s., 1H), 8.25-8.42 (m, 2H), 8.05 (d, J=7.9 Hz, 1H), 7.53-7.69
(m, 2H), 7.04-7.33 (m, 6H), 6.89-7.02 (m, 2H), 4.54 (br. s., 1H),
3.91 (s, 3H), 3.55 (br. s., 2H), 3.32 (br. s., 1H), 2.20-1.90 (m,
4H). LC-MS: m/z 518.6 (M+H).sup.+
Compound 100
General Procedure 2, Step C
N-[4-[4-(2,3-difluorophenyl)-4-hydroxy-piperidine-1-carbonyl]phenyl]quinol-
ine-8-sulfonamide
##STR00410##
[0325] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.15 (d, J=3.0 Hz, 1H),
8.61 (br. s., 1H), 8.31 (d, J=8.3 Hz, 1H), 8.36 (d, J=7.3 Hz, 1H),
8.05 (d, J=8.1 Hz, 1H), 7.55-7.66 (m, 2H), 7.23 (t, J=7.1 Hz, 1H),
7.18 (d, J=8.3 Hz, 2H), 7.02-7.12 (m, 4H), 4.52 (br. s., 1H), 3.51
(br. s., 2H), 3.22 (br. s., 1H), 2.65 (br. s., 1H), 2.14-2.29 (m,
1H), 2.09 (br. s., 1H), 1.79 (br. s., 1H). LC-MS: m/z 523.6
(M+H).sup.+
Compound 113
General Procedure 2, Step C
N-[4-[4-[2-(difluoromethyl)phenyl]-4-hydroxy-piperidine-1-carbonyl]phenyl]-
quinoline-8-sulfonamide
##STR00411##
[0327] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.02-9.07 (m, 2H), 8.51
(d, J=7.3 Hz, 1H), 8.38 (d, J=8.3 Hz, 1H), 7.89 (t, J=7.9 Hz, 1H),
7.76 (s, 1H), 7.50-7.54 (m, 1H), 7.39 (dd, J=7.5, 1.3 Hz, 1H),
7.29-7.32 (m, 1H), 7.22-7.28 (m, 2H), 7.16 (s, 1H), 7.06 (d, J=8.1
Hz, 1H), 4.60 (br. s., 1H), 3.61 (br. s., 1H), 3.55 (br. s., 1H),
3.31 (d, J=11.3 Hz, 1H), 2.35 (d, J=7.5 Hz, 1H), 2.20 (d, J=14.8
Hz, 1H), 2.01-2.12 (m, 2H), 1.97 (br. s., 2H). LC-MS: m/z 537.6
(M+H).sup.+
Compound 266
General Procedure 2, Step C
N-(4-(4-(2-cyanophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8--
sulfonamide
##STR00412##
[0329] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=4.2, 1.7 Hz,
1H), 8.39 (dd, J=7.3, 1.3 Hz, 1H), 8.33 (dd, J=8.3, 1.6 Hz, 1H),
8.07 (dd, J=8.2, 1.2 Hz, 1H), 7.92 (d, J=7.5 Hz, 1H), 7.71 (s, 1H),
7.54-7.67 (m, 3H), 7.38 (d, J=7.5 Hz, 1H), 7.26 (d, J=8.9 Hz, 2H),
7.13 (d, J=8.3 Hz, 2H), 4.66-4.84 (m, 1H), 3.70-3.90 (m, 1H),
3.46-3.64 (m, 1H), 3.21-3.39 (m, 1H), 2.23 (s, 2H), 1.71-1.88 (m,
2H). LC-MS: m/z 514.7 (M+H).sup.+
Compound 255
General Procedure 2, Step C
N-[4-[4-(4-cyanophenyl)-4-hydroxy-piperidine-1-carbonyl]phenyl]quinoline-8-
-sulfonamide
##STR00413##
[0331] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.42 (br. s., 1H), 9.29
(d, J=4.3 Hz, 1H), 8.50 (d, J=8.1 Hz, 2H), 8.14 (d, J=8.1 Hz, 1H),
7.68-7.81 (m, 4H), 7.60 (d, J=7.5 Hz, 1H), 7.50 (t, J=7.8 Hz, 1H),
7.18-7.26 (m, 4H), 4.64 (t, J=17.2 Hz, 1H), 3.53-3.81 (m, 1H), 3.51
(s, 1H), 3.32 (s, 1H), 2.07 (br. s., 2H), 2.00 (br. s. 2H). LC-MS:
m/z 512.6 (M+H).sup.+
Compound 166
General Procedure 2, Step C
N-(4-(4-(2-chloro-5-fluorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)na-
phthalene-1-sulfonamide
##STR00414##
[0333] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.18 (d, J=3.0 Hz, 1H),
8.61 (br. s., 1H), 8.30-8.42 (m, 2H), 8.07 (d, J=8.3 Hz, 1H),
7.58-7.68 (m, 2H), 7.49 (dd, J=7.0, 2.7 Hz, 1H), 7.30-7.37 (m, 1H),
7.19-7.26 (m, 2H), 7.11 (d, J=8.3 Hz, 2H), 6.95-7.04 (m, 1H), 4.61
(br. s., 1H), 3.60 (br. s., 1H), 3.50 (br. s., 1H), 3.23 (br. s.,
1H), 2.16-2.31 (m, 1H), 2.09 (br. s., 1H), 1.82 (br. s., 2H).
LC-MS: m/z 541.1 (M+H).sup.+
Compound 190
General Procedure 2, Step C
N-[4-[4-(2-chloro-4-methyl-phenyl)-4-hydroxy-piperidine-1-carbonyl]phenyl]-
quinoline-8-sulfonamide
##STR00415##
[0335] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.79 (br. s., 1H), 1.94
(br. s., 1H), 2.05 (br. s., 1H), 2.13 (br. s., 1H), 2.32 (s, 3H),
2.98 (br. s., 1H), 3.27 (br. s., 1H), 3.56 (br. s., 2H), 4.58 (br.
s., 1H), 7.07-7.11 (m, 3H), 7.18-7.22 (m, 3H), 7.37 (d, J=8.03 Hz,
1H), 7.59-7.66 (m, 2H), 8.06 (dd, J=8.16, 1.13 Hz, 1H) 8.32 (dd,
J=8.28, 1.51 Hz, 1H), 8.38 (dd, J=7.28, 1.25 Hz, 1H), 8.60 (br. s.,
1H), 9.17 (dd, J=4.27, 1.51 Hz, 1H). LC-MS: m/z 537.0
(M+H).sup.+
Compound 111
General Procedure 2, Step C
N-[4-[4-(2-chloro-4-fluoro-phenyl)-4-hydroxy-piperidine-1-carbonyl]phenyl]-
quinoline-8-sulfonamide
##STR00416##
[0337] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.57-1.76 (m, 4H), 2.04
(br. s., 1H), 2.13 (br. s., 1H), 3.57 (br. s., 2H), 4.57 (br. s.,
1H), 6.97-7.04 (m, 1H), 7.10 (d, J=8.06 Hz, 2H), 7.19-7.23 (m, 4H),
7.59-7.67 (m, 2H), 8.06 (d, J=8.06 Hz, 1H), 8.32 (d, J=8.33 Hz,
1H), 8.39 (d, J=7.52 Hz, 1H), 8.59 (br. s., 1H), 9.17 (d, J=4.03
Hz, 1H). LC-MS: m/z 540.6 (M+H).sup.+
Compound 123
General Procedure 2, Step C
N-[4-[4-(2-chloro-3-fluoro-phenyl)-4-hydroxy-piperidine-1-carbonyl]phenyl]-
quinoline-8-sulfonamide
##STR00417##
[0339] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.70-1.90 (m, 4H), 3.28
(br. s., 1H), 3.51 (s, 2H), 3.60 (br. s., 1H), 4.61 (br. s., 1H),
7.09-7.15 (m, 3H), 7.22 (d, J=8.33 Hz, 2H), 7.34-7.44 (m, 3H),
7.59-7.70 (m, 2H), 8.08 (d, J=8.33 Hz, 1H), 8.36 (d, J=8.06 Hz,
1H), 8.41 (d, J=7.25 Hz, 1H), 8.77 (br. s., 1H), 9.20 (d, J=3.76
Hz, 1H). LC-MS: m/z 540.6 (M+H).sup.+
Compound 182
General Procedure 2, Step C
N-(4-(4-hydroxy-4-(3-(methylsulfonyl)phenyl)piperidine-1-carbonyl)phenyl)q-
uinoline-8-sulfonamide
##STR00418##
[0341] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.18 (dd, J=4.3, 1.3 Hz,
1H), 8.63 (br. s., 1H), 8.37 (dd, J=10.6, 1.2 Hz, 1H), 8.32-8.43
(m, 1H), 8.07 (dd, J=8.3, 1.1 Hz, 1H), 7.89-7.96 (m, 2H), 7.57-7.74
(m, 5H), 7.14-7.19 (m, J=8.6 Hz, 2H), 7.06-7.12 (m, J=8.6 Hz, 2H),
4.36 (br. s., 1H), 3.87 (br. s., 1H), 3.37-3.57 (m, 2H), 3.24-3.33
(m, 2H), 3.20 (br. s., 1H), 1.79 (br. s., 2H), 1.64 (br. s., 2H).
LC-MS: m/z 566.7 (M+H).sup.+
Compound 192
General Procedure 2, Step C
N-[4-[4-hydroxy-4-(2-methylsulfonylphenyl)piperidine-1-carbonyl]phenyl]qui-
noline-8-sulfonamide
##STR00419##
[0343] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.95 (d, J=12.89 Hz,
3H), 1.99-2.11 (m, 2H), 3.27 (br. s., 3H), 3.48 (br. s., 2H), 3.87
(br. s., 1H), 4.38 (br. s., 1H), 7.10 (m, J=8.60 Hz, 2H), 7.17 (m,
J=8.60 Hz, 2H), 7.61-7.65 (m, 3H), 7.69-7.74 (m, 1H), 7.93 (d,
J=8.60 Hz, 2H), 8.07 (d, J=8.33 Hz, 1H), 8.34 (d, J=8.33 Hz, 1H),
8.39 (d, J=7.25 Hz, 1H), 8.64 (br. s., 1H), 9.18 (d, J=3.49 Hz,
1H). LC-MS: m/z 566.7 (M+H).sup.+
Compound 228
General Procedure 2, Step C
N-[4-[4-hydroxy-4-(2-hydroxyphenyl)piperidine-1-carbonyl]phenyl]quinoline--
8-sulfonamide
##STR00420##
[0345] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.94-2.09 (m, 4H),
2.21-2.27 (m, 1H), 2.50 (br. s., 1H), 3.30 (br. s., 1H), 3.50 (br.
s., 1H), 3.62 (br. s., 1H), 4.63 (br. s., 1H), 6.89 (t, J=8.06 Hz,
2H), 7.05-7.12 (m, 3H), 7.17-7.24 (m, 3H), 7.60-7.67 (m, 2H), 8.07
(d, J=8.06 Hz, 1H), 8.32 (d, J=6.72 Hz, 1H), 8.39 (d, J=7.25 Hz,
1H), 8.59 (br. s., 1H), 9.17 (d, J=5.91 Hz, 1H). LC-MS: m/z 504.6
(M+H).sup.+
Compound 156
N-(4-(4-hydroxy-4-phenylpiperidine-1-carbonyl)phenyl)quinoline-8-sulfonami-
de
##STR00421##
[0347] .sup.1H NMR (DMSO-d.sub.6) .delta.: 9.05 (1H), 8.5 (m, 1H),
8.4 (m, 1H), 8.2 (m, 1H), 7.7 (m, 2H), 7.4 (m, 2H), 7.4-7.05 (m,
7H), 4.2 (br, 2H), 3.2 (br, 2H), 1.85 (br, 2H), 1.6 (br, 2H).
LC-MS: m/z 488.6 (M+H).sup.+
Compound 103
N-(4-(4-hydroxy-4-(o-tolyl)piperidine-1-carbonyl)phenyl)quinoline-8-sulfon-
amide
##STR00422##
[0349] .sup.1H NMR (CD.sub.3OD) .delta.: 9.1 (1H), 8.4 (m, 2H), 8.2
(m, 1H), 7.6 (m, 2H), 7.4 (m, 1H), 7.2-7.05 (m, 7H), 4.4 (br, 1H),
3.5 (br, 2H), 2.5 (s, 3H), 2.2-1.8 (m, 4H), 1.4 (br, 2H). LC-MS:
m/z 502.6 (M+H).sup.+
Compound 247
General Procedure 2, Step C
N-[4-[4-(2-fluoropyridin-4-yl)-4-hydroxy-piperidine-1-carbonyl]phenyl]quin-
oline-8-sulfonamide
##STR00423##
[0351] .sup.1H NMR (CHLOROFORM-d) .delta.: 2.08 (br. s., 1H),
2.14-2.37 (m, 2H), 2.75 (br. s., 1H), 3.22 (br. s., 1H), 3.49 (br.
s., 2H), 3.56 (br. s., 1H), 4.55 (br. s., 1H), 7.09 (d, J=8.60 Hz,
2H), 7.19 (d, J=8.60 Hz, 3H), 7.56-7.66 (m, 2H), 7.94 (t, J=8.19
Hz, 1H), 8.05 (d, J=8.06 Hz, 1H), 8.12 (d, J=4.57 Hz, 1H), 8.31 (d,
J=8.33 Hz, 1H), 8.37 (d, J=7.25 Hz, 1H), 8.62 (br. s., 1H), 9.16
(d, J=5.91 Hz, 1H). LC-MS: m/z 507.6 (M+H).sup.+
Compound 265
General Procedure 2, Step C
N-[4-[4-hydroxy-4-(6-methylpyridin-2-yl)piperidine-1-carbonyl]phenyl]quino-
line-8-sulfonamide
##STR00424##
[0353] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.70 (br. s., 2H), 1.80
(br. s., 2H), 2.02 (br. s., 1H), 2.56 (s, 3H), 3.29 (br. s., 1H),
3.63 (br. s., 2H), 4.65 (br. s., 1H), 7.07-7.12 (m, 4H), 7.24 (d,
J=8.60 Hz, 2H), 7.58-7.66 (m, 3H), 8.05 (d, J=8.33 Hz, 1H), 8.31
(d, J=6.72 Hz, 1H), 8.38 (d, J=7.25 Hz, 1H), 8.58 (br. s., 1H),
9.16 (d, J=5.91 Hz, 1H). LC-MS: m/z 503.6 (M+H).sup.+
Compound 174
General Procedure 2, Step C
N-[4-[4-hydroxy-4-[6-(trifluoromethyl)pyridin-2-yl]piperidine-1-carbonyl]p-
henyl]quinoline-8-sulfonamide
##STR00425##
[0355] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (dd, J=4.3, 1.6 Hz,
1H), 8.63 (br. s., 1H), 8.37 (dd, J=7.3, 1.3 Hz, 1H), 8.31 (dd,
J=8.3, 1.6 Hz, 1H), 8.02-8.08 (m, 1H), 7.92 (t, J=7.9 Hz, 1H),
7.55-7.66 (m, 4H), 7.20-7.25 (m, J=8.6 Hz, 2H), 7.07-7.13 (m, J=8.3
Hz, 2H), 4.50-4.71 (m, 2H), 3.60-3.71 (m, 1H), 3.50-3.60 (m, 1H),
1.80-1.97 (m, 2H), 1.74 (br. s., 2H). LC-MS: m/z 556.6
(M+H).sup.+
Compound 211
General Procedure 2, Step C
N-(4-(4-hydroxy-4-(2-methoxypyridin-3-yl)piperidine-1-carbonyl)phenyl)quin-
oline-8-sulfonamide
##STR00426##
[0357] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.12-9.19 (m, 1H), 8.61
(br. s., 1H), 8.37 (dd, J=7.3, 1.2 Hz, 1H), 8.30 (dd, J=8.4, 1.3
Hz, 1H), 8.09 (dd, J=5.0, 1.5 Hz, 1H), 8.02-8.07 (m, 1H), 7.56-7.66
(m, 2H), 7.50 (dd, J=7.3, 1.8 Hz, 1H), 7.19 (d, J=8.5 Hz, 2H), 7.09
(d, J=8.5 Hz, 2H), 6.91 (dd, J=7.3, 5.0 Hz, 1H), 4.57 (br. s., 1H),
4.02 (s, 3H), 3.89 (br. s., 1H), 3.56 (br. s., 2H), 3.29 (br. s.,
1H), 2.05-1.89 (m, 4H). LC-MS: m/z 519.6 (M+H).sup.+
Compound 129
General Procedure 2, Step C
N-(4-(4-(6-fluoro-2-methylpyridin-3-yl)-4-hydroxypiperidine-1-carbonyl)phe-
nyl)quinoline-8-sulfonamide
##STR00427##
[0359] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (dd, J=4.3, 1.6 Hz,
1H), 8.60 (br. s., 1H), 8.33 (dd, J=19.9, 1.3 Hz, 1H), 8.35 (dd,
J=18.9, 1.5 Hz, 1H), 8.02-8.10 (m, 1H), 7.70 (t, J=8.2 Hz, 1H),
7.56-7.66 (m, 2H), 7.17 (d, J=8.3 Hz, 2H), 7.08 (d, J=8.3 Hz, 2H),
6.68 (dd, J=8.6, 3.5 Hz, 1H), 4.55 (br. s., 1H), 3.56 (br. s., 2H),
3.28 (br. s., 1H), 2.70 (s, 3H), 1.92-2.08 (m, 4H). LC-MS: m/z
519.6 (M+H).sup.+
Compound 171
General Procedure 2, Step C
N-(4-(4-(5-fluoro-6-methylpyridin-2-yl)-4-hydroxypiperidine-1-carbonyl)phe-
nyl)quinoline-8-sulfonamide
##STR00428##
[0361] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.15 (dd, J=4.3, 1.9 Hz,
1H), 8.64 (br. s., 1H), 8.36 (dd, J=7.4, 1.2 Hz, 1H), 8.31 (dd,
J=8.3, 1.6 Hz, 1H), 8.20 (d, J=5.1 Hz, 1H), 8.05 (dd, J=8.2, 1.2
Hz, 1H), 7.55-7.67 (m, 2H), 7.26-7.32 (m, 1H), 7.18 (d, J=8.6 Hz,
2H), 7.09 (d, J=8.6 Hz, 2H), 4.53 (br. s., 1H), 3.53 (br. s., 2H),
3.19 (br. s., 2H), 2.50 (d, J=3.5 Hz, 3H), 2.04-2.23 (m, 2H),
1.61-1.73 (m, 2H). LC-MS: m/z 519.6 (M+H).sup.+
Compound 148
General Procedure 2, Step C
N-(4-(4-(3-fluoropyridin-2-yl)-4-hydroxypiperidine-1-carbonyl)phenyl)quino-
line-8-sulfonamide
##STR00429##
[0363] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=4.3, 1.6 Hz,
1H), 8.60 (br. s., 1H), 8.41-8.46 (m, 2H), 8.39 (dd, J=7.3, 1.5 Hz,
1H), 8.33 (dd, J=8.4, 1.6 Hz, 1H), 8.07 (dd, J=8.2, 1.2 Hz, 1H),
7.58-7.68 (m, 2H), 7.51 (dd, J=6.7, 5.3 Hz, 1H), 7.22 (d, J=8.5 Hz,
2H), 7.11 (d, J=8.5 Hz, 2H), 4.63 (br. s., 1H), 3.60-3.23 (m, 3H),
2.32-1.86 (br. m., 4H). LC-MS: m/z 507.5 (M+H).sup.+
Compound 166
N-(4-(4-(2-chloro-5-fluorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)na-
phthalene-1-sulfonamide
##STR00430##
[0365] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.18 (d, J=3.0 Hz, 1H),
8.61 (br. s., 1H), 8.30-8.42 (m, 2H), 8.07 (d, J=8.3 Hz, 1H),
7.58-7.68 (m, 2H), 7.49 (dd, J=7.0, 2.7 Hz, 1H), 7.30-7.37 (m, 1H),
7.19-7.26 (m, 2H), 7.11 (d, J=8.3 Hz, 2H), 6.95-7.04 (m, 1H), 4.61
(br. s., 1H), 3.60 (br. s., 1H), 3.50 (br. s., 1H), 3.23 (br. s.,
1H), 2.16-2.31 (m, 1H), 2.09 (br. s., 1H), 1.82 (br. s., 2H).
LC-MS: m/z 541.0 (M+H).sup.+
Compound 133
General Procedure 2, Step C
N-(4-(4-(6-bromo-5-fluoropyridin-2-yl)-4-hydroxypiperidine-1-carbonyl)phen-
yl)quinoline-8-sulfonamide
##STR00431##
[0367] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=4.4, 1.8 Hz,
1H), 8.66 (br. s., 1H), 8.28-8.43 (m, 2H), 8.13 (d, J=5.0 Hz, 1H),
8.07 (dd, J=8.2, 1.2 Hz, 1H), 7.57-7.70 (m, 2H), 7.44 (t, J=5.3 Hz,
1H), 7.19 (d, J=8.5 Hz, 2H), 7.10 (d, J=8.5 Hz, 2H), 4.55 (br. s.,
1H), 3.18-3.56 (m, 3H), 2.04-2.34 (m, 2H), 1.63-1.65 (m, 2H).
LC-MS: m/z 586.4 (M+H).sup.+
Compound 147
General Procedure 2, Step C
N-(4-(4-hydroxy-4-(2-methylpyridin-3-yl)piperidine-1-carbonyl)phenyl)quino-
line-8-sulfonamide
##STR00432##
[0369] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.13 (dd, J=1.6, 4.3 Hz,
1H), 8.66 (br. s., 1H), 8.38-8.26 (m, 2H), 8.22 (d, J=4.7 Hz, 1H),
8.04 (dd, J=1.2, 8.2 Hz, 1H), 7.66-7.51 (m, 3H), 7.18-7.10 (m, 2H),
7.10-6.97 (m, 3H), 4.47 (br. s., 1H), 3.53 (br. s., 1H), 3.47-3.32
(m, 1H), 3.26 (br. s., 1H), 2.70 (s, 3H), 2.09-1.71 (m, 5H). LC-MS:
m/z 503.6 (M+H).sup.+
Compound 164
General Procedure 2, Step C
N-(4-(4-hydroxy-4-(3-(trifluoromethyl)pyridin-2-yl)piperidine-1-carbonyl)p-
henyl)quinoline-8-sulfonamide
##STR00433##
[0371] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.20 (dd, J=4.3, 1.6 Hz,
1H), 8.75 (d, J=3.5 Hz, 1H), 8.71 (s, 1H), 8.45-8.38 (m, 1H), 8.35
(d, J=8.4 Hz, 1H), 8.12 (d, J=6.9 Hz, 1H), 8.08 (dd, J=8.2, 1.3 Hz,
1H), 7.71-7.59 (m, 2H), 7.43 (dd, J=7.8, 4.9 Hz, 1H), 7.23 (d,
J=8.6 Hz, 2H), 7.12 (d, J=8.6 Hz, 2H), 4.64 (s, 1H), 3.61 (s, 2H),
3.30 (s, 1H), 2.37 (s, 2H), 1.68 (d, J=11.9 Hz, 3H). LC-MS: m/z
577.7 (M+H).sup.+
Compound 191
General Procedure 2, Step C
N-(4-(4-(3-chloropyridin-2-yl)-4-hydroxypiperidine-1-carbonyl)phenyl)quino-
line-8-sulfonamide
##STR00434##
[0373] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.19 (dd, J=4.3, 1.7 Hz,
1H), 8.68 (s, 1H), 8.50 (dd, J=4.6, 1.3 Hz, 1H), 8.40 (dd, J=7.3,
1.3 Hz, 1H), 8.35 (dd, J=8.3, 1.7 Hz, 1H), 8.08 (dd, J=8.2, 1.3 Hz,
1H), 7.78 (dd, J=8.0, 1.3 Hz, 1H), 7.65 (ddd, J=13.7, 7.9, 4.4 Hz,
2H), 7.32-7.29 (m, 1H), 7.28-7.21 (m, 2H), 7.18-7.09 (m, 2H), 4.68
(d, J=12.4 Hz, 1H), 3.60 (d, J=24.5 Hz, 2H), 3.31 (t, J=13.6 Hz,
1H), 2.75 (d, J=49.9 Hz, 2H), 1.52 (d, J=9.9 Hz, 2H). LC-MS: m/z
523.6 (M+H).sup.+
Compound 153
General Procedure 2, Step C
N-(4-(4-hydroxy-4-(3-methylpyridin-2-yl)piperidine-1-carbonyl)phenyl)quino-
line-8-sulfonamide
##STR00435##
[0375] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.18 (dd, J=4.3, 1.7 Hz,
1H), 8.56 (s, 1H), 8.43-8.36 (m, 2H), 8.33 (dd, J=8.4, 1.8 Hz, 1H),
8.07 (dd, J=8.3, 1.3 Hz, 1H), 7.69-7.59 (m, 2H), 7.53 (d, J=7.1 Hz,
1H), 7.26-7.18 (m, 3H), 7.14-7.08 (m, 2H), 6.71 (s, 1H), 4.65 (s,
1H), 3.64 (s, 2H), 3.35 (s, 1H), 2.51 (s, 3H), 2.39 (s, 1H), 2.24
(dd, J=10.2, 4.5 Hz, 1H), 1.56 (m, 2H). LC-MS: m/z 503.6
(M+H).sup.+
Compound 159
General Procedure 2, Step C
N-(4-(4-hydroxy-4-(2-(trifluoromethyl)pyridin-3-yl)piperidine-1-carbonyl)p-
henyl)quinoline-8-sulfonamide
##STR00436##
[0377] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.15 (dd, J=1.3, 4.3 Hz,
1H), 8.62 (d, J=4.4 Hz, 1H), 8.42-8.26 (m, 2H), 8.11-7.92 (m, 2H),
7.69-7.55 (m, 2H), 7.47 (dd, J=4.4, 8.2 Hz, 1H), 7.22-7.06 (m, 4H),
3.61-3.40 (m, 6H), 3.40-3.17 (m, 2H), 2.07 (br. s., 1H), 2.04-1.74
(m, 5H). LC-MS: m/z 557.6 (M+H).sup.+
Compound 217
General Procedure 2, Step C
N-(4-(4-(2-fluoropyridin-3-yl)-4-hydroxypiperidine-1-carbonyl)phenyl)quino-
line-8-sulfonamide
##STR00437##
[0379] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=1.8, 4.4 Hz,
1H), 8.64 (br. s., 1H), 8.42-8.27 (m, 2H), 8.13 (td, J=1.6, 4.7 Hz,
1H), 8.06 (dd, J=1.3, 8.4 Hz, 1H), 7.94 (ddd, J=1.9, 7.7, 10.1 Hz,
1H), 7.69-7.55 (m, 2H), 7.26-7.16 (m, 3H), 7.14-7.05 (m, 2H), 4.58
(br. s., 1H), 3.67-3.38 (m, 2H), 3.23 (br. s., 1H), 2.22-2.09 (br.
s., 5H). LC-MS: m/z 507.5 (M+H).sup.+
Compound 206
N-(4-(4-hydroxy-4-(pyridin-4-yl)piperidine-1-carbonyl)phenyl)quinoline-8-s-
ulfonamide
##STR00438##
[0381] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.19-9.14 (m, 1H), 8.62
(s, 2H), 8.39 (d, J=7.3 Hz, 1H), 8.32 (d, J=8.3 Hz, 1H), 8.07 (d,
J=3.9 Hz, 2H), 7.68-7.58 (m, 2H), 7.44 (s, 2H), 7.23 (d, J=8.5 Hz,
2H), 7.12 (d, J=8.5 Hz, 2H), 4.66 (s, 1H), 3.68 (s, 1H), 3.49 (s,
1H), 3.28 (s, 1H), 1.87-1.64 (m, 4H). LC-MS: m/z 489.4
(M+H).sup.+
Compound 161
N-(4-(4-(3-chloropyridin-4-yl)-4-hydroxypiperidine-1-carbonyl)phenyl)quino-
line-8-sulfonamide
##STR00439##
[0383] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=4.2, 1.5 Hz,
1H), 8.62 (s, 1H), 8.55 (s, 1H), 8.50 (s, 1H), 8.38 (dd, J=7.3, 1.1
Hz, 1H), 8.32 (dd, J=8.3, 1.5 Hz, 1H), 8.07 (d, J=8.2 Hz, 1H),
7.68-7.58 (m, 2H), 7.54 (d, J=4.9 Hz, 1H), 7.21 (d, J=8.5 Hz, 2H),
7.11 (d, J=8.5 Hz, 2H), 4.61 (s, 1H), 3.65 (d, J=19.1 Hz, 1H), 3.25
(s, 2H), 2.83 (s, 1H), 2.41 (d, J=57.6 Hz, 2H), 1.84 (s, 1H).
LC-MS: m/z 523.6 (M+H).sup.+
Compound 377
General Procedure 2, Step C
(4-hydroxy-4-(isothiazol-4-yl)piperidin-1-yl)(4-((quinolin-8-ylsulfonyl)me-
thyl)phenyl)methanone
##STR00440##
[0385] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.15 (d, J=2.7 Hz, 1H),
8.39-8.46 (m, 2H), 8.38 (s, 1H), 8.18 (d, J=8.3 Hz, 1H), 7.62-7.71
(m, 2H), 7.17-7.25 (m, 5H), 4.45 (br. s., 1H), 3.49 (br. s., 2H),
2.00 (br. s., 3H), 1.81 (br. s., 1H), 1.31 (br. s., 1H). LC-MS: m/z
495.6 (M+H).sup.+
General Procedure 3
##STR00441##
[0386] Step A:
[0387] To a solution of tert-butyl 4-oxopiperidine-1-carboxylate (1
eq.) in THF was added dropwise the corresponding RMgBr solution in
THF (4 eq.) via a syringe at -30.degree. C. After the addition, the
resulting mixture was stirred at -30.degree. C. under N.sub.2 for 2
h, then allowed to warm to r.t. The reaction mixture was quenched
by satd. NH.sub.4Cl solution, and the resulting mixture was
extracted with EtOAc (50 mL, 30 mL). The combined organic phase was
washed with brine, dried over anhydrous Na.sub.2SO.sub.4 and
concentrated in vacuo. The residue was purified by column
chromatography (PE/EtOAc) to give the desired compound 3B.
Step B:
[0388] To a solution of compound 3B (1 eq.) in DCM, was added TFA
(10 eq.), the reaction mixture was stirred at room temperature for
about 2 hours, when LCMS detected no s.m. The reaction mixture was
concentrated to afford the desired product 3C. The crude product
was used for the next step directly without further
purification.
Step C:
[0389] To a round-bottomed flask was added compound 3C (1 eq.), DMF
(5 mL), DIPEA (3.0 eq.), HBTU (1.2 eq.), and 1A (1 eq.)
sequentially. The reaction mixture was stirred at room temperature
overnight or until TLC indicated that s.m. was consumed. The
mixture was diluted with brine, extracted with ethyl acetate, the
organic layer was dried with anhydrous Na.sub.2SO.sub.4, filtered,
and filtrate was concentrated. The desired product was purified by
a standard method.
Compound 214
General Procedure 3, Step C
N-(4-(4-hydroxy-4-isopropylpiperidine-1-carbonyl)phenyl)quinoline-8-sulfon-
amide
##STR00442##
[0391] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.23 (s, 1H), 8.96 (s,
1H), 8.48-8.34 (m, 2H), 8.10 (d, J=8.1 Hz, 1H), 7.76-7.61 (m, 2H),
7.18 (d, J=8.4 Hz, 2H), 7.13 (d, J=8.5 Hz, 2H), 4.48 (s, 1H), 3.50
(s, 1H), 3.33 (s, 1H), 3.11 (s, 1H), 1.65-1.56 (m, 1H), 1.41 (d,
J=53.9 Hz, 4H), 0.92 (d, J=6.9 Hz, 6H). LC-MS: m/z 454.6
(M+H).sup.+
Compound 260
General Procedure 3, Step C
N-(4-(4-cyclopropyl-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-sulf-
onamide
##STR00443##
[0393] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=4.3, 1.7 Hz,
1H), 8.58 (s, 1H), 8.39 (dd, J=7.3, 1.3 Hz, 1H), 8.33 (dd, J=8.4,
1.7 Hz, 1H), 8.07 (dd, J=8.2, 1.3 Hz, 1H), 7.69-7.59 (m, 2H), 7.19
(d, J=8.6 Hz, 2H), 7.10 (d, J=8.6 Hz, 2H), 5.28 (t, J=7.0 Hz, 1H),
3.65 (t, J=6.4 Hz, 4H), 3.32 (s, 2H), 2.40-2.22 (m, 4H), 2.14 (dd,
J=23.1, 12.0 Hz, 2H). LC-MS: m/z 452.6 (M+H).sup.+
Compound 183
General Procedure 3, Step C
N-(4-(4-hydroxy-4-propylpiperidine-1-carbonyl)phenyl)quinoline-8-sulfonami-
de
##STR00444##
[0395] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=4.3, 1.7 Hz,
1H), 8.55 (s, 1H), 8.38 (dd, J=7.3, 1.3 Hz, 1H), 8.32 (dd, J=8.4,
1.7 Hz, 1H), 8.06 (dd, J=8.2, 1.3 Hz, 1H), 7.68-7.58 (m, 2H), 7.17
(d, J=8.6 Hz, 2H), 7.08 (d, J=8.6 Hz, 2H), 4.34 (s, 1H), 3.52-3.10
(m, 3H), 1.46 (dd, J=10.2, 4.6 Hz, 4H), 1.33 (ddd, J=26.6, 11.0,
7.3 Hz, 4H), 0.95 (t, J=7.0 Hz, 3H). LC-MS: m/z 454.6
(M+H).sup.+
Compound 140
General Procedure 3, Step C
N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)quinoline-8-sulfona-
mide
##STR00445##
[0397] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=4.3, 1.7 Hz,
1H), 8.56 (s, 1H), 8.38 (dd, J=7.3, 1.3 Hz, 1H), 8.32 (dd, J=8.4,
1.6 Hz, 1H), 8.06 (dd, J=8.2, 1.3 Hz, 1H), 7.68-7.58 (m, 2H), 7.17
(d, J=8.5 Hz, 2H), 7.09 (d, J=8.6 Hz, 2H), 4.34 (s, 1H), 3.43 (s,
1H), 3.35 (s, 1H), 3.20 (s, 1H), 1.83 (tt, J=13.0, 6.5 Hz, 1H),
1.49 (s, 2H), 1.41 (d, J=6.0 Hz, 2H), 1.31 (d, J=23.9 Hz, 2H), 0.98
(d, J=6.6 Hz, 6H). LC-MS: m/z 468.6 (M+H).sup.+
Compound 195
General Procedure 3, Step C
N-(4-(4-(tert-butyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-sul-
fonamide
##STR00446##
[0399] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.19 (dd, J=4.3, 1.5 Hz,
1H), 8.71 (s, 1H), 8.40 (dd, J=7.3, 1.3 Hz, 1H), 8.35 (dd, J=8.3,
1.4 Hz, 1H), 8.08 (dd, J=8.2, 1.2 Hz, 1H), 7.70-7.60 (m, 2H), 7.18
(d, J=8.5 Hz, 2H), 7.10 (d, J=8.5 Hz, 2H), 4.52 (s, 1H), 3.54 (s,
1H), 3.32 (s, 1H), 3.04 (s, 1H), 1.71 (s, 4H), 0.93 (s, 9H). LC-MS:
m/z 468.6 (M+H).sup.+
Compound 124
General Procedure 3, Step C
N-(4-(4-(cyclobutylmethyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-
-8-sulfonamide
##STR00447##
[0401] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=4.2, 1.5 Hz,
1H), 8.56 (s, 1H), 8.38 (dd, J=7.3, 1.3 Hz, 1H), 8.32 (dd, J=8.3,
1.5 Hz, 1H), 8.06 (dd, J=8.2, 1.2 Hz, 1H), 7.68-7.58 (m, 2H), 7.17
(d, J=8.5 Hz, 2H), 7.08 (d, J=8.5 Hz, 2H), 4.33 (s, 1H), 3.51-3.08
(m, 3H), 2.57-2.43 (m, 1H), 2.14-2.01 (m, 2H), 1.91 (dd, J=18.4,
9.5 Hz, 1H), 1.79 (dd, J=10.5, 8.5 Hz, 1H), 1.76-1.64 (m, 4H), 1.61
(s, 2H), 1.43-1.35 (m, 2H). LC-MS: m/z 480.6 (M+H).sup.+
General Procedure 4
##STR00448##
[0402] Step A:
[0403] To a solution of diethyl ether (freshly distilled from
sodium/benzophenone) containing a catalytic amount of
1,2-dibromoethane was added magnesium turnings (6.6 eq.) under
argon and the resulting mixture was stirred at room temperature for
30 min. A solution of substituted benzyl bromide/chloride (5 eq.)
in dry diethyl ether was then added slowly to the reaction mixture
over a period of 2 h and stirring was continued at room temperature
for additional 2 h. The reaction mixture was then cooled to
0.degree. C., when compound 4A (1 eq.) taken in a solution of dry
diethyl ether was slowly added to the reaction mixture under argon
atmosphere. The resulting reaction mixture was allowed to stir at
room temperature for another 4 hrs. The progress of the reaction
was monitored by TLC. Upon completion of the reaction, the mixture
was quenched with satd. NH.sub.4CI solution, and extracted with
EtOAc. The combined organic layers were washed with water, dried
over Na.sub.2SO.sub.4 and concentrated under reduced pressure to
give the crude product. The crude product was then purified by
column chromatography using silica gel (100-200 mesh) and 20% EtOAc
in hexane to afford desired compound 4B.
Step B:
[0404] Compound 4B (1 eq.) was dissolved in DCM and cooled to
0.degree. C., when TFA (10 eq.) was added at 0.degree. C. The
reaction mixture was allowed to warm to r.t. and stirred for 3-4
hrs at r.t. until LCMS and TLC confirmed completion of reaction.
The reaction mixture was concentrated to get the crude product
which was triturated 3 to 4 times with DCM and n-pentane to afford
compound 4C.
Step C:
[0405] To a solution of compound 4C (1.2 eq.) in DMF, 1A (1 eq.)
was added followed by addition of DIPEA (2 eq.), HATU (1.2 eq.) and
DMAP (0.1 eq.) at room temperature under nitrogen atmosphere. The
reaction mixture was allowed to stir at room temperature for 16
hrs. The progress of the reaction was monitored by TLC and upon
completion of reaction the crude mixture was diluted with EtOAc and
washed sequentially with water and saturated sodium bicarbonate
solution. The resulting organic layer was then separated, dried
over Na.sub.2SO.sub.4 and concentrated under reduced pressure to
give the crude product which was purified by a standard method to
afford desired compound 4D.
Compound 110
General Procedure 4, Step C
N-(4-(4-(2-fluorobenzyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-
-sulfonamide
##STR00449##
[0407] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.14 (s, 1H), 8.51 (bs,
1H), 8.32 (dd, 2H, J=6.8 Hz & J=7.6 Hz), 8.03 (d, 1H, J=8 Hz),
7.61-7.57 (m, 2H), 7.18-7.05 (m, 8H), 4.36 (bs, 1H), 3.44 (m, 1H),
3.27 (m, 1H), 3.13 (m, 1H), 2.96-2.88 (m, 2H), 2.80 (s, 2H),
1.33-1.25 (m, 3H). LC-MS: m/z 520.2 (M+H).sup.+
Compound 105
General Procedure 4, Step C
N-(4-(4-(3-fluorobenzyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-
-sulfonamide
##STR00450##
[0409] .sup.1H NMR (DMSO-d.sub.6) .delta.: 10.40 (s, 1H), 9.13-9.12
(m, 1H), 8.45 (dd, 2H, J=8.4 Hz & J=7.2 Hz), 8.27 (d, 1H, J=8
Hz), 7.74-7.69 (m, 2H), 7.29-7.25 (m, 1H), 7.18-6.98 (m, 7H), 4.49
(s, 1H), 4.06 (m, 1H), 3.62-3.61 (m, 1H), 3.18-3.12 (m, 2H), 2.68
(s, 2H), 1.38-1.33 (m, 4H). LC-MS: m/z 520.2 (M+H).sup.+
Compound 118
General Procedure 4, Step C
N-(4-(4-hydroxy-4-(3-methylbenzyl)piperidine-1-carbonyl)phenyl)quinoline-8-
-sulfonamide
##STR00451##
[0411] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.15-9.13 (m, 1H), 8.52
(bs, 1H), 8.36-8.28 (m, 2H), 8.03 (d, 1H, J=7.6 Hz), 7.63-7.57 (m,
2H), 7.22-7.05 (m, 5H), 6.99-6.93 (m, 2H), 4.37 (bs, 1H), 3.90-3.45
(m, 2H), 3.27-2.98 (m, 2H), 2.70 (s, 2H), 2.33 (s, 2H), 1.51-132
(m, 4H). LC-MS: m/z 516.2 (M+H).sup.+
Compound 108
General Procedure 4, Step C
N-(4-(4-hydroxy-4-(2-methylbenzyl)piperidine-1-carbonyl)phenyl)quinoline-8-
-sulfonamide
##STR00452##
[0413] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.14-9.13 (m, 1H), 8.52
(bs, 1H), 8.36-8.28 (m, 2H), 8.03 (d, 1H, J=8.4 Hz), 7.63-7.57 (m,
2H), 7.18-7.05 (m, 8H), 4.35-4.48 (m, 1H), 3.60-2.95 (m, 3H),
2.80-2.79 (m, 3H), 2.33 (s, 3H), 1.52-1.39 (m, 4H). LC-MS: m/z
516.2 (M+H).sup.+
Compound 116
General Procedure 4, Step C
N-(4-(4-hydroxy-4-(2-methoxybenzyl)piperidine-1-carbonyl)phenyl)quinoline--
8-sulfonamide
##STR00453##
[0415] .sup.1H NMR (DMSO-d.sub.6) .delta.: 9.15-9.14 (m, 1H), 8.51
(bs, 1H), 8.36-8.28 (dd, 2H, J=4.2 Hz & J=8 Hz), 8.03 (d, 1H,
J=8 Hz), 7.63-7.57 (m, 2H), 7.24-6.98 (m, 6H), 6.94-6.89 (m, 2H),
4.33 (bs, 1H), 3.83 (s, 3H), 3.41-3.12 (m, 3H), 2.85-2.83 (m, 3H),
1.57-1.29 (m, 4H). LC-MS: m/z 532.6 (M+H).sup.+
Compound 135
General Procedure 4, Step C
N-(4-(4-hydroxy-4-(3-methoxybenzyl)piperidine-1-carbonyl)phenyl)quinoline--
8-sulfonamide
##STR00454##
[0417] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.15-9.14 (m, 1H), 8.51
(s, 1H), 8.32 (dd, 2H, J=7.2 Hz & J=8 Hz), 8.03 (d, 1H, J=8
Hz), 7.63-7.57 (m, 2H), 7.23-7.05 (m, 5H), 6.90-6.68 (m, 3H), 4.38
(m, 1H), 3.79 (s, 3H), 3.60-2.98 (m, 4H), 2.71 (s, 2H), 1.54-1.40
(m, 4H). LC-MS: m/z 532.6 (M+H).sup.+
Compound 152
General Procedure 4, Step C
N-(4-(4-hydroxy-4-(3-(trifluoromethyl)benzyl)piperidine-1-carbonyl)phenyl)-
quinoline-8-sulfonamide
##STR00455##
[0419] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.14-9.13 (m, 1H), 8.53
(bs, 1H), 8.32 (dd, 2H, J=6.8 Hz, J=8.4 Hz), 8.03 (d, 1H, J=8 Hz),
7.63-7.50 (m, 3H), 7.45-7.33 (m, 3H), 7.16-7.00 (m, 4H), 4.38 (m,
1H), 3.50-3.45 (m, 1H), 3.28-2.91 (m, 2H), 2.90-2.79 (m, 3H),
1.58-1.33 (m, 4H). LC-MS: m/z 570.2 (M+H).sup.+
General Procedure 5
##STR00456##
[0420] Step A: 4-(2,2,2-trifluoroacetamido)benzoic acid (5B)
[0421] To a mixture of 4-aminobenzoic acid (44 g, 0.32 mmol) in TFA
(300 mL) was added trifluoroacetic anhydride (100 mL) dropwise,
keeping the temperature below 10.degree. C. After the addition, the
mixture was stirred at room temperature overnight. The mixture was
then poured into crushed ice, the precipitate that formed was
filtered, and was dried in vacuo overnight to give the title
compound (2, 72 g). .sup.1H NMR (DMSO-d.sub.6) .delta.: 11.52 (s,
1H), 7.93-8.07 (m, 2H), 7.76-7.86 (m, 2H). LC-MS: m/z 234.1
(M+H).sup.+
Step B
[0422] To a round-bottomed flask was added the corresponding
compound 3 (21 mmol, 1 eq.), DMF (50 mL), DIPEA (3.0 eq.), HBTU
(1.2 eq.), and intermediate 2 (5 g, 21 mmol, 1 eq.) sequentially.
The reaction mixture was stirred at room temperature overnight or
until TLC indicated that s.m. was consumed. The mixture was diluted
with brine, extracted with ethyl acetate, the organic layer was
dried with anhydrous Na.sub.2SO.sub.4, filtered, and the filtrate
was concentrated. The desired product was purified by silica gel
chromatography. 5C-1, LC-MS: m/z 427.8 (M+H).sup.+; 5C-2, LC-MS:
m/z 373.4 (M+H).sup.+; 5C-3, LC-MS: m/z 429.4 (M+H).sup.+; 5C-4,
LC-MS: m/z 407.4 (M+H).sup.+
Step C
[0423] To a mixture of the corresponding compound 5C (1 eq.) in
methanol, was added K.sub.2CO.sub.3 (2 eq.). The mixture was
stirred at room temperature overnight, when TLC indicated
consumption of s.m. and product formation. The mixture was then
concentrated in vacuo, partitioned between brine and EtOAc, the
organic layer was separated and concentrated to give the crude
product. Further purification was done by a standard method.
1B:
(4-aminophenyl)(4-(2-chlorophenyl)-4-hydroxypiperidin-1-yl)methanone
##STR00457##
[0425] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.55 (dd, J=7.9, 1.7 Hz,
1H), 7.41 (dd, J=7.8, 1.3 Hz, 1H), 7.29-7.34 (m, 3H), 7.23-7.28 (m,
1H), 6.66-6.71 (m, 2H), 4.59 (br. s., 1H), 3.88 (br. s., 2H), 3.50
(br. s., 2H), 2.97 (br. s., 1H), 2.33 (br. s., 2H), 2.20-2.29 (m,
1H), 1.97-2.16 (m, 2H). LC-MS: m/z 331.8 (M+H).sup.+
1C:
(4-aminophenyl)(4-hydroxy-4-isobutylpiperidin-1-yl)methanone
##STR00458##
[0427] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.21-7.33 (m, 2H),
6.63-6.72 (m, 2H), 3.35 (br. s., 2H), 1.87 (dt, J=12.9, 6.4 Hz,
1H), 1.62 (br. s., 4H), 1.44 (d, J=5.9 Hz, 2H), 1.00 (d, J=6.7 Hz,
6H). LC-MS: m/z 277.4 (M+H).sup.+
1D:
(4-aminophenyl)(4-(2,3-difluorophenyl)-4-hydroxypiperidin-1-yl)methano-
ne
##STR00459##
[0429] LC-MS: m/z 333.3 (M+H).sup.+
1E: (4-aminophenyl)(4-benzyl-4-hydroxypiperidin-1-yl)methanone
##STR00460##
[0431] .sup.1H NMR (DMSO-d.sub.6) .delta.: 7.44 (d, 2H, J=8 Hz),
7.32-7.16 (m, 5H), 6.66 (d, 2H, J=8.4 Hz), 4.80 (m, 2H), 4.37 (m,
2H), 2.29 (s, 2H). LC-MS: m/z 311.4 (M+H).sup.+
Step D
[0432] To a suspension of the 1B-1E (0.5 mmol) and sulfonyl
chloride (80 mg, 0.55 mmol) in 30 mL of anhydrous THF, was added
pyridine (1.0 mmol) at room temperature. The resulting mixture was
heated and stirred at reflux for 6 h. The reaction mixture was
cooled to room temperature, then extracted with EtOAc (100
mL.times.2). The combined organic phase was washed with brine,
dried over anhy. Na.sub.2SO.sub.4 and concentrated in vacuo. The
title compound was obtained by a standard purification method.
Compound 155
General Procedure 5, Step D
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)benzo[d]thi-
azole-4-sulfonamide
##STR00461##
[0434] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.19 (d,
J=8.1 Hz, 1H), 8.10 (d, J=7.5 Hz, 1H), 7.94 (s, 1H), 7.54 (dd,
J=15.3, 7.6 Hz, 2H), 7.40 (dd, J=7.6, 1.3 Hz, 1H), 7.32 (d, J=6.5
Hz, 1H), 7.27 (d, J=9.2 Hz, 1H), 7.24 (d, J=8.2 Hz, 2H), 7.13 (d,
J=7.9 Hz, 2H), 4.61 (s, 1H), 3.58 (s, 2H), 3.32 (s, 1H), 2.42-1.96
(m, 4H). LC-MS: m/z 528.6 (M+H).sup.+
Compound 179
General Procedure 5, Step D
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-5-fluoroqu-
inoline-8-sulfonamide
##STR00462##
[0436] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.72 (br. s., 2H), 1.96
(br. s., 1H), 2.18 (br. s., 1H), 2.33 (br. s., 1H), 2.96 (br. s.,
1H), 3.28 (br. s., 1H), 3.57 (br. s., 2H), 4.61 (br. s., 1H), 7.08
(d, J=8.60 Hz, 2H), 7.21 (d, J=8.33 Hz, 2H), 7.23-7.28 (m, 2H),
7.29-7.32 (m, 1H), 7.38 (dd, J=7.52, 1.34 Hz, 1H), 7.51 (dd,
J=7.66, 1.48 Hz, 1H), 7.70 (dd, J=8.33, 4.30 Hz, 1H), 8.34-8.43 (m,
2H), 8.57 (dd, J=8.46, 1.48 Hz, 1H), 9.19-9.24 (m, 1H). LC-MS: m/z
540.1 (M+H).sup.+
Compound 259
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-2-fluoroqu-
inoline-5-sulfonamide
##STR00463##
[0438] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.22 (t, J=8.0 Hz, 1H),
8.98 (br. s., 1H), 8.21 (d, J=8.0 Hz, 1H), 8.12 (d, J=8.0 Hz, 1H),
7.72 (t, J=8.0 Hz, 1H), 7.53 (d, J=8.0 Hz, 1H), 7.38 (d, J=8.0 Hz,
1H), 7.28-7.13 (m, 5H), 6.94 (d, J=8.0 Hz, 2H), 4.64 (br. s., 1H),
3.55 (br. s., 2H), 3.35 (br. s., 1H), 3.17 (br. s., 1H), 2.42 (br.
s., 1H), 2.21 (s, 1H), 2.08 (s, 1H), 1.95 (s, 1H). LC-MS: m/z 541.1
(M+H).sup.+
Compound 244
General Procedure 5, Step D
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)benzo[c]iso-
thiazole-7-sulfonamide
##STR00464##
[0440] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.45 (s, 1H), 8.12 (d,
J=6.2 Hz, 1H), 8.03 (d, J=8.6 Hz, 1H), 7.89 (s, 1H), 7.51 (dd,
J=7.7, 1.5 Hz, 1H), 7.40 (dd, J=7.7, 1.5 Hz, 1H), 7.30-7.35 (m,
2H), 7.26 (dd, J=7.5, 1.6 Hz, 1H), 7.22 (d, J=8.6 Hz, 2H), 7.11 (d,
J=8.3 Hz, 2H), 4.59 (br. s., 1H), 3.57 (br. s., 2H), 3.34 (br. s.,
2H), 2.26 (br. s., 2H), 2.04 (br. s., 3H). LC-MS: m/z 529.1
(M+H).sup.+
Compound 173
General Procedure 5, Step D
N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)benzo[d]thiazole-4--
sulfonamide
##STR00465##
[0442] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.19 (d,
J=8.1 Hz, 1H), 8.10 (d, J=7.5 Hz, 1H), 7.93 (s, 1H), 7.54 (t, J=7.9
Hz, 1H), 7.20 (d, J=8.3 Hz, 2H), 7.11 (d, J=8.4 Hz, 2H), 3.28 (s,
2H), 1.83 (dt, J=12.8, 6.5 Hz, 1H), 1.56 (s, 7H), 1.42 (d, J=6.0
Hz, 2H), 0.98 (d, J=6.6 Hz, 6H). LC-MS: m/z 474.6 (M+H).sup.+
Compound 378
General Procedure 5, Step D
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-7-fluorobe-
nzo[d]thiazole-4-sulfonamide
##STR00466##
[0444] .sup.1H NMR (DMSO-d.sub.6) .delta.: 10.87 (s, 1H), 9.73 (s,
1H), 8.19 (dd, J=8.6, 5.1 Hz, 1H), 7.80 (dd, J=7.9, 1.5 Hz, 1H),
7.57 (t, J=8.7 Hz, 1H), 7.32-7.40 (m, 2H), 7.24-7.29 (m, 1H),
7.19-7.23 (m, J=8.6 Hz, 2H), 7.10-7.16 (m, J=8.6 Hz, 2H), 5.41 (s,
1H), 4.30 (br. s., 1H), 3.43 (br. s., 1H), 2.46 (br. s., 2H).
LC-MS: m/z 529.1 (M+H).sup.+
Compound 203
General Procedure 5, Step D
5-fluoro-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)quinoline--
8-sulfonamide
##STR00467##
[0446] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.22 (d, J=2.8 Hz, 1H),
8.58 (dd, J=8.5, 1.3 Hz, 1H), 8.44-8.32 (m, 2H), 7.71 (dd, J=8.5,
4.3 Hz, 1H), 7.18 (d, J=8.3 Hz, 2H), 7.08 (d, J=8.3 Hz, 2H), 4.33
(s, 1H), 3.31 (s, 3H), 1.83 (dt, J=12.8, 6.3 Hz, 1H), 1.57 (s, 4H),
1.41 (d, J=6.0 Hz, 2H), 0.98 (d, J=6.6 Hz, 6H). LC-MS: m/z 486.7
(M+H).sup.+
Compound 240
General Procedure 5, Step D
7-fluoro-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)benzo[d]th-
iazole-4-sulfonamide
##STR00468##
[0448] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.32 (s, 1H), 8.12 (dd,
J=8.3, 4.8 Hz, 1H), 7.84 (s, 1H), 7.22-7.27 (m, 1H), 7.20 (d, J=8.6
Hz, 2H), 7.09 (d, J=8.6 Hz, 2H), 4.25-4.46 (m, 1H), 3.42 (br. s.,
2H), 3.20 (br. s., 1H), 1.83 (dt, J=12.9, 6.4 Hz, 1H), 1.55-1.70
(m, 3H), 1.51 (br. s., 1H), 1.42 (d, J=6.2 Hz, 2H), 0.98 (d, J=6.4
Hz, 6H). LC-MS: m/z 492.6 (M+H).sup.+
Compound 145
General Procedure 5, Step D
2-amino-6-fluoro-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)be-
nzo[d]thiazole-4-sulfonamide
##STR00469##
[0450] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.09 (s, 1H), 7.59 (dd,
J=8.2, 2.5 Hz, 1H), 7.49 (dd, J=7.5, 2.5 Hz, 1H), 7.25 (d, J=8.5
Hz, 2H), 7.13 (d, J=8.5 Hz, 2H), 5.98 (d, J=15.1 Hz, 2H), 4.37 (s,
1H), 3.43 (d, J=30.3 Hz, 2H), 3.22 (s, 1H), 1.85 (dt, J=12.9, 6.4
Hz, 1H), 1.49 (d, J=28.9 Hz, 4H), 1.43 (d, J=6.0 Hz, 2H), 0.99 (d,
J=6.6 Hz, 6H). LC-MS: m/z 507.78 (M+H).sup.+
Compound 379
General Procedure 5, Step D
N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)benzo[d]oxazole-4-s-
ulfonamide
##STR00470##
[0452] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.33 (s, 1H), 7.92 (d,
J=7.7 Hz, 1H), 7.83 (d, J=8.2 Hz, 1H), 7.61 (s, 1H), 7.49 (t, J=8.0
Hz, 1H), 7.22 (d, J=8.4 Hz, 2H), 7.15 (d, J=8.4 Hz, 2H), 4.35 (s,
1H), 3.40 (d, J=25.4 Hz, 2H), 3.21 (s, 1H), 1.89-1.77 (m, 1H), 1.65
(s, 4H), 1.42 (d, J=6.0 Hz, 2H), 0.98 (d, J=6.6 Hz, 6H). LC-MS: m/z
458.72 (M+H).sup.+
Compound 380
General Procedure 5, Step D
2-amino-3-hydroxy-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)b-
enzenesulfonamide
##STR00471##
[0454] .sup.1H NMR (CHLOROFORM-d) .delta.: 10.54 (s, 1H), 9.95 (s,
1H), 7.24 (d, J=8.6 Hz, 2H), 7.10-7.03 (m, 3H), 6.81 (dd, J=7.7,
1.2 Hz, 1H), 6.45 (t, J=8.0 Hz, 1H), 5.47 (s, 2H), 4.18 (s, 1H),
4.08 (s, 1H), 3.33-2.95 (m, 3H), 1.80 (dp, J=12.7, 6.4 Hz, 1H),
1.44 (d, J=48.4 Hz, 4H), 1.29 (d, J=5.7 Hz, 2H), 0.90 (d, J=6.6 Hz,
6H). LC-MS: m/z 448.69 (M+H).sup.+
Compound 381
General Procedure 5, Step D
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)benzo[d]oxa-
zole-4-sulfonamide
##STR00472##
[0456] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.33 (s, 1H), 7.93 (d,
J=7.7 Hz, 1H), 7.83 (d, J 8.2 Hz, 1H), 7.70 (s, 1H), 7.56-7.46 (m,
2H), 7.40 (dd, J=7.6, 1.3 Hz, 1H), 7.35-7.30 (m, 1H), 7.26 (d,
J=8.5 Hz, 3H), 7.17 (d, J=8.4 Hz, 2H), 4.63 (s, 1H), 3.60 (s, 2H),
3.31 (s, 1H), 2.94 (s, 1H), 2.36 (s, 1H), 2.20 (s, 1H), 2.10 (s,
1H), 1.99 (s, 1H). LC-MS: m/z 512.67 (M+H).sup.+
Compound 382
General Procedure 5, Step D
2-amino-N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-3--
hydroxybenzenesulfonamide
##STR00473##
[0458] .sup.1H NMR (CHLOROFORM-d) .delta.: 10.57 (s, 1H), 9.94 (d,
J=3.7 Hz, 1H), 7.81 (dd, J=7.9, 1.6 Hz, 1H), 7.44-7.32 (m, 2H),
7.32-7.23 (m, 3H), 7.15-7.03 (m, 3H), 6.81 (d, J=7.7 Hz, 1H), 6.45
(t, J=7.9 Hz, 1H), 5.48 (s, 2H), 5.42 (s, 1H), 4.36 (s, 1H), 3.48
(s, 2H), 3.11 (s, 1H), 2.41 (s, 1H), 1.53 (d, J=38.6 Hz, 3H).
LC-MS: m/z 502.66 (M+H).sup.+
Compound 383
General Procedure 5, Step D
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-2-methylbe-
nzo[d]oxazole-4-sulfonamide
##STR00474##
[0460] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.83 (d, J=7.8 Hz, 1H),
7.78 (s, 1H), 7.68 (d, J=8.2 Hz, 1H), 7.53 (d, J=6.6 Hz, 1H), 7.37
(dd, J=13.5, 7.1 Hz, 2H), 7.32-7.21 (m, 4H), 7.16 (d, J=8.4 Hz,
2H), 4.61 (s, 1H), 3.60 (s, 2H), 3.31 (s, 1H), 3.04 (s, 1H), 2.76
(s, 3H), 2.38 (s, 1H), 2.19 (s, 1H), 2.02 (d, J=45.1 Hz, 2H).
LC-MS: m/z 526.70 (M+H).sup.+
Compound 384
General Procedure 5, Step D
N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)-2-methylbenzo[d]ox-
azole-4-sulfonamide
##STR00475##
[0462] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.83 (dd, J=7.8, 0.7 Hz,
1H), 7.68 (d, J=8.1 Hz, 1H), 7.59 (s, 1H), 7.37 (t, J=8.0 Hz, 1H),
7.23 (d, J=8.5 Hz, 2H), 7.14 (d, J=8.5 Hz, 2H), 4.35 (s, 1H), 3.39
(dd, J=73.0, 45.6 Hz, 3H), 2.77 (s, 3H), 1.84 (dp, J=12.9, 6.5 Hz,
1H), 1.65 (s, 3H), 1.52 (s, 1H), 1.42 (d, J=6.0 Hz, 2H), 0.99 (d,
J=6.6 Hz, 6H). LC-MS: m/z 472.70 (M+H).sup.+
Compound 385
General Procedure 5, Step D
6-chloro-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)-2-(methyl-
amino)benzo[d]thiazole-4-sulfonamide
##STR00476##
[0464] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.98 (br. s., 1H), 7.78
(d, 1=1.9 Hz, 1H), 7.71 (d, J=1.9 Hz, 1H), 7.26 (d, J=8.6 Hz, 2H),
7.10-7.14 (m, 2H), 3.44 (br. s., 1H), 3.22 (d, J=3.2 Hz, 3H),
1.82-1.87 (m, 1H), 1.64-1.66 (m, 2H), 1.42-1.44 (m, 2H), 0.99 (d,
J=6.7 Hz, 6H). LC-MS: m/z 538.1 (M+H).sup.+
Compound 154
General Procedure 5, Step D
2-amino-N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-6--
fluorobenzo[d]thiazole-4-sulfonamide
##STR00477##
[0466] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.01 (s, 1H), 7.59 (dd,
J=8.2, 2.5 Hz, 1H), 7.53 (dd, J=7.9, 1.8 Hz, 1H), 7.49 (dd, J=7.5,
2.6 Hz, 1H), 7.41 (dd, J=7.7, 1.5 Hz, 1H), 7.32 (dd, J=7.5, 1.5 Hz,
1H), 7.30 (d, J=3.8 Hz, 2H), 7.25 (dd, J=7.5, 1.7 Hz, 1H), 7.15 (d,
J=8.5 Hz, 2H), 5.83 (s, 2H), 4.64 (s, 1H), 3.62 (s, 2H), 3.34 (s,
1H), 2.37 (s, 1H), 2.26-2.17 (m, 1H), 2.08 (d, J=10.1 Hz, 1H), 2.03
(s, 1H). LC-MS: m/z 561.71 (M+H).sup.+
Compound 173
General Procedure 5, Step D
N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)benzo[d]thiazole-4--
sulfonamide
##STR00478##
[0468] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.19 (d,
J=8.1 Hz, 1H), 8.10 (d, J=7.5 Hz, 1H), 7.93 (s, 1H), 7.54 (t, J=7.9
Hz, 1H), 7.20 (d, J=8.3 Hz, 2H), 7.11 (d, J=8.4 Hz, 2H), 3.28 (s,
2H), 1.83 (dt, J=12.8, 6.5 Hz, 1H), 1.56 (s, 7H), 1.42 (d, J=6.0
Hz, 2H), 0.98 (d, J=6.6 Hz, 6H). LC-MS: m/z 474.6 (M+H).sup.+
Compound 203
General Procedure 5, Step D
5-fluoro-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)quinoline--
8-sulfonamide
##STR00479##
[0470] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.22 (d, J=2.8 Hz, 1H),
8.58 (dd, J=8.5, 1.3 Hz, 1H), 8.44-8.32 (m, 2H), 7.71 (dd, J=8.5,
4.3 Hz, 1H), 7.18 (d, J=8.3 Hz, 2H), 7.08 (d, J=8.3 Hz, 2H), 4.33
(s, 1H), 3.31 (s, 3H), 1.83 (dt, J=12.8, 6.3 Hz, 1H), 1.57 (s, 4H),
1.41 (d, J=6.0 Hz, 2H), 0.98 (d, J=6.6 Hz, 6H). LC-MS: m/z 486.7
(M+H).sup.+
Compound 227
General Procedure 5, Step D
N-(4-(4-(2,3-difluorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-5-fluo-
roquinoline-8-sulfonamide
##STR00480##
[0472] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.24 (br. s., 1H), 8.59
(d, J=7.8 Hz, 1H), 8.47 (br. s., 1H), 8.36-8.42 (m, 1H), 7.68-7.76
(m, 1H), 7.18-7.28 (m, 4H), 7.10 (d, m, 4H), 4.58 (br. s., 1H),
3.52 (br. s., 2H), 3.25 (br. s., 1H), 1.99-2.29 (m, 4H). LC-MS: m/z
543.6 (M+H).sup.+
Compound 205
General Procedure 5, Step D
N-(4-(4-benzyl-4-hydroxypiperidine-1-carbonyl)phenyl)benzo[c][1,2,5]thiadi-
azole-4-sulfonamide
##STR00481##
[0474] .sup.1H NMR (DMSO-d6) .delta.: 10.98 (bs, 1H), 8.33 (dd, 2H,
J=8.8 Hz, J=6.8 Hz), 7.86-7.81 (m, 1H), 7.25-7.12 (m, 7H), 7.07 (d,
2H, J=8.4 Hz), 4.42 (s, 1H), 4.25-3.90 (m, 1H), 3.21-2.98 (m, 3H),
2.65 (s, 2H), 1.54-1.42 (m, 4H). LC-MS: m/z 543.6 (M+H).sup.+
Compound 106
General Procedure 5, Step D
N-(4-(4-benzyl-4-hydroxypiperidine-1-carbonyl)phenyl)-2,3,4a,8a-tetrahydro-
benzo[b][1,4]dioxine-5-sulfonamide
##STR00482##
[0476] .sup.1H NMR (DMSO-d.sub.6) .delta.: 10.31 (s, 1H), 7.38-7.16
(m, 8H), 7.15-7.00 (m, 3H), 6.90 (t, 1H, J=8 Hz), 4.44 (bs, 1H),
4.28 (d, 4H, J=8.4 Hz), 4.19-4.10 (m, 1H), 3.51-3.25 (m, 3H), 2.68
(s, 2H), 1.61-1.30 (m, 4H). LC-MS: m/z 511.6 (M+H).sup.+
Compound 239
General Procedure 5, Step D
N-(4-(4-benzyl-4-hydroxypiperidine-1-carbonyl)phenyl)-6-chlorocyclohexa-1,-
3-diene-1-sulfonamide
##STR00483##
[0478] .sup.1H NMR (DMSO-d.sub.6) .delta.: 10.87 (bs, 1H), 8.07 (d,
1H, J=8 Hz), 7.70-7.45 (m, 3H), 7.37-6.96 (m, 9H), 4.43 (s, 1H),
4.25-3.98 (m, 1H), 3.40-2.88 (m, 3H), 2.66 (s, 2H), 1.60-1.29 (m,
4H). LC-MS: m/z 488.0 (M+H).sup.+
Compound 237
General Procedure 5, Step D
N-(4-(4-benzyl-4-hydroxypiperidine-1-carbonyl)phenyl)-2,3-dichlorobenzenes-
ulfonamide
##STR00484##
[0480] .sup.1H NMR (DMSO-d.sub.6) .delta.: 11.03 (bs, 1H), 8.05 (d,
1H, J=7.6 Hz), 7.89 (d, 1H, J=8 Hz), 7.54 (d, 1H, J=8 Hz),
7.31-7.11 (m, 7H), 7.07 (d, 2H, J=8.8 Hz), 4.43 (s, 1H), 4.23-3.90
(m, 1H), 3.41-2.90 (m, 3H), 2.27 (s, 2H), 1.58-1.30 (m, 4H). LC-MS:
m/z 520.4 (M+H).sup.+
General Procedure 6
##STR00485##
[0481] Step A:
[0482] To a solution of compound 6A (1 eq.) in THF was added
pyridine (5 eq.), then aryl-sulfonyl chloride (1.2 eq.). The
resulting mixture was heated at 70.degree. C. under microwave
irradiation for 20 minutes, when LC-MS showed that the reaction was
complete. The mixture was then concentrated and purified by reverse
phase chromatography (0-100% MeOH/H.sub.2O) to afford compound
6B.
Step B:
[0483] To a mixture of the corresponding compound 6B (1 eq.) in
THF, was added LiOH (10 eq.), and the mixture was stirred at room
temperature overnight. The reaction mixture was concentrated, the
residue diluted with water, and extracted with DCM. The aqueous
layer was neutralized with 1N HCl, then extracted with DCM. The
organic layer was separated, concentrated to get the crude product,
which was purified by silica gel chromatography to obtain compound
6C.
Step C:
[0484] To a round-bottomed flask was added the corresponding
compound 6C (1 eq.), DMF (5 mL), DIPEA (3.0 eq.), HBTU (1.2 eq.),
and compound 6D (1.0 eq.) sequentially. The reaction mixture was
stirred at room temperature overnight or until TLC showed that s.m.
was consumed. The mixture was diluted with brine, extracted with
ethyl acetate, the organic layer was dried with anhydrous
Na.sub.2SO.sub.4, filtered, and the filtrate was concentrated in
vacuo. The desired product was purified by a standard method.
Compound 185
General Procedure 6, Step C
N-(4-(4-hydroxy-4-(pyridin-3-ylmethyl)piperidine-1-carbonyl)phenyl)quinoli-
ne-8-sulfonamide
##STR00486##
[0486] .sup.1H NMR (DMSO-d.sub.6) .delta.: 10.41 (bs, 1H), 9.12 (m,
1H), 8.52-8.26 (m, 5H), 7.74-7.57 (m, 3H), 7.27-7.24 (m, 1H),
7.11-7.09 (m, 4H), 4.54 (s, 1H), 4.06-3.99 (m, 1H), 3.18-2.99 (m,
3H), 2.33 (s, 2H), 1.37-1.34 (m, 4H). LC-MS: m/z 503.6
(M+H).sup.+
Compound 189
General Procedure 6, Step C
N-(4-(4-hydroxy-4-(pyridin-2-ylmethyl)piperidine-1-carbonyl)phenyl)quinoli-
ne-8-sulfonamide
##STR00487##
[0488] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.14-9.12 (m, 1H),
8.48-8.47 (m, 2H), 8.31 (dd, 2H, J=8.4 Hz & J=7.2 Hz), 8.02 (d,
1H, J=7.2 Hz), 7.65-7.56 (m, 3H), 7.25-7.03 (m, 6H), 4.13 (bs, 1H),
3.39-3.23 (m, 4H), 2.87 (s, 2H), 1.53-1.28 (m, 4H). LC-MS: m/z
503.6 (M+H).sup.+
Compound 207
General Procedure 6, Step C
N-(4-(4-hydroxy-4-((6-methylpyridin-2-yl)methyl)piperidine-1-carbonyl)phen-
yl)quinoline-8-sulfonamide
##STR00488##
[0490] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.14-9.13 (m, 1H), 8.50
(bs, 1H), 8.31 (dd, 2H, J=7.2 & J=8 Hz), 8.03 (d, 1H, J=8 Hz),
7.62-7.49 (m, 3H), 7.14 (d, 2H, J=8.4 Hz), 7.09-7.03 (m, 3H), 6.88
(d, 1H, J=7.6 Hz), 5.29 (s, 1H), 4.32-4.30 (m, 1H), 3.48-3.21 (m,
3H), 2.82 (s, 2H), 2.50 (s, 3H), 1.45-1.33 (m, 4H). LC-MS: m/z
517.6 (M+H).sup.+
Compound 146
General Procedure 6, Step C
N-(4-(4-((6-fluoropyridin-2-yl)methyl)-4-hydroxypiperidine-1-carbonyl)phen-
yl)quinoline-8-sulfonamide
##STR00489##
[0492] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.14-9.13 (m, 1H), 8.511
(bs, 1H), 8.32 (dd, 2H, J=7.2 Hz & J=7.2), 8.03 (d, 1H, J=8
Hz), 7.76-7.59 (m, 3H), 7.14 (d, 2H, J=8.4 Hz), 7.04 (d, 2H, J=8.4
Hz), 7.00-6.98 (m, 1H), 6.83-6.80 (m, 1H), 4.61 (s, 1H), 4.34-4.32
(m, 1H), 3.40-3.19 (m, 3H), 2.86 (s, 2H), 1.58-1.43 (m, 4H). LC-MS:
m/z 521.6 (M+H).sup.+
Compound 168
General Procedure 6, Step C
N-(4-(4-((2-fluoropyridin-3-yl)methyl)-4-hydroxypiperidine-1-carbonyl)phen-
yl)quinoline-8-sulfonamide
##STR00490##
[0494] .sup.1H NMR (400 MHz, CDCl.sub.3) .delta.: 9.15 (dd, J=4.4,
1.6 Hz, 1H), 8.54 (s, 1H), 8.36 (dd, J=7.2, 1.2 Hz, 1H), 8.30 (dd,
J=8.4, 1.6 Hz, 1H), 8.12 (d, J=4.4 Hz, 1H), 8.04 (d, J=7.2 Hz, 1H),
7.66-7.56 (m, 3H), 7.18-7.11 (m, 3H), 7.06 (d, J=8.5 Hz, 2H), 4.36
(s, 1H), 3.49 (s, 1H), 3.29-3.21 (m, 1H), 3.21-3.07 (m, 1H), 2.80
(s, 2H), 2.17 (s, 1H), 1.74-1.60 (m, 2H), 1.40-1.29 (m, 2H). LC-MS:
m/z 521.6 (M+H).sup.+
Compound 143
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-2-fluorophenyl)qu-
inoline-8-sulfonamide
##STR00491##
[0496] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (dd, J=4.3, 1.6 Hz,
1H), 8.42 (dd, J=7.3, 1.3 Hz, 1H), 8.33 (dd, J=8.3, 1.6 Hz, 1H),
8.06-8.12 (m, 1H), 7.60-7.68 (m, 2H), 7.50 (dd, J=7.8, 1.6 Hz, 1H),
7.39 (dd, J=7.7, 1.5 Hz, 1H), 7.29-7.32 (m, 1H), 7.22-7.27 (m, 1H),
7.14 (t, J=7.8 Hz, 1H), 6.99 (d, J=9.7 Hz, 1H), 6.82 (d, J=8.1 Hz,
1H), 4.65 (d, J=13.2 Hz, 1H), 3.58 (br. s., 1H), 3.40 (d, J=11.3
Hz, 1H), 3.22-3.35 (m, 1H), 2.93 (br. s., 1H), 2.32 (td, J=13.3,
4.6 Hz, 1H), 2.20 (s, 3H), 2.11 (d, J=12.6 Hz, 1H), 1.98 (d, J=13.4
Hz, 1H). LC-MS: m/z 540.6 (M+H).sup.+
Compound 193
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-3-fluorophenyl)qu-
inoline-8-sulfonamide
##STR00492##
[0498] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (dd, J=4.3, 1.6 Hz,
1H), 8.42 (dd, J=7.3, 1.3 Hz, 1H), 8.33 (dd, J=8.3, 1.6 Hz, 1H),
8.06-8.12 (m, 1H), 7.60-7.68 (m, 2H), 7.50 (dd, J=7.8, 1.6 Hz, 1H),
7.39 (dd, J=7.7, 1.5 Hz, 1H), 7.29-7.32 (m, 1H), 7.22-7.27 (m, 1H),
7.14 (t, J=7.8 Hz, 1H), 6.99 (d, J=9.7 Hz, 1H), 6.82 (d, J=8.1 Hz,
1H), 4.65 (d, J=13.2 Hz, 1H), 3.58 (br. s., 1H), 3.40 (d, J=11.3
Hz, 1H), 3.22-3.35 (m, 1H), 2.93 (br. s., 1H), 2.32 (td, J=13.3,
4.6 Hz, 1H), 2.20 (s, 3H), 2.11 (d, J=12.6 Hz, 1H), 1.98 (d, J=13.4
Hz, 1H). LC-MS: m/z 540.6 (M+H).sup.+
Compound 104
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-2-methylphenyl)qu-
inoline-8-sulfonamide
##STR00493##
[0500] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.11 (dd, J=4.3, 1.6 Hz,
1H), 8.43 (dd, J=7.3, 1.1 Hz, 1H), 8.31 (dd, J=8.3, 1.6 Hz, 1H),
8.04-8.10 (m, 1H), 7.59-7.66 (m, 2H), 7.52 (dd, J=7.8, 1.9 Hz, 1H),
7.36 (dd, J=7.5, 1.6 Hz, 1H), 7.20-7.30 (m, 3H), 7.13 (s, 1H), 7.03
(dd, J=8.3, 1.6 Hz, 1H), 4.56 (br. s., 1H), 3.61 (br. s., 1H), 3.52
(br. s., 1H), 3.26 (br. s., 1H), 2.29-2.43 (m, 1H), 2.11-2.27 (m,
4H), 1.96-2.07 (m, 3H), 1.90 (d, J=7.8 Hz, 1H). LC-MS: m/z 536.3
(M+H).sup.+
Compound 141
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-3-methylphenyl)qu-
inoline-8-sulfonamide
##STR00494##
[0502] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.13-9.19 (m, 1H), 8.48
(br. s., 1H), 8.28-8.41 (m, 2H), 8.07 (d, J=8.1 Hz, 1H), 7.57-7.67
(m, 2H), 7.52 (d, J=7.3 Hz, 1H), 7.38 (d, J=7.5 Hz, 1H), 7.22-7.27
(m, 1H), 6.92-7.01 (m, 1H), 6.88 (d, J=8.1 Hz, 2H), 4.69 (d, J=13.7
Hz, 1H), 3.48 (br. s., 1H), 3.22-3.36 (m, 2H), 2.37 (br. s., 1H),
2.21 (br. s., 1H), 2.15 (br. s., 2H), 2.02-2.11 (m, 2H), 1.99 (br.
s., 1H). LC-MS: m/z 536.3 (M+H).sup.+
Compound 170
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-3-methoxyphenyl)q-
uinoline-8-sulfonamide
##STR00495##
[0504] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (d, J=4.0 Hz, 1H),
8.30-8.42 (m, 2H), 8.04-8.12 (m, 1H), 7.59-7.67 (m, 2H), 7.35-7.57
(m, 2H), 7.23-7.34 (m, 3H), 6.83-6.99 (m, 2H), 6.36-6.49 (m, 1H),
3.64-3.78 (m, 3H), 3.18-3.35 (m, 1H), 3.04 (s, 1H), 2.76 (s, 1H),
2.27-2.40 (m, 1H), 1.90-2.14 (m, 4H). LC-MS: m/z 552.3
(M+H).sup.+
Compound 209
General Procedure 6, Step C
N--(N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-3-cyanophenyl-
)quinoline-8-sulfonamide
##STR00496##
[0506] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=4.3, 1.6 Hz,
1H), 8.33-8.44 (m, 2H), 8.08-8.14 (m, 1H), 7.63-7.70 (m, 2H), 7.49
(dd, J=7.8, 1.6 Hz, 1H), 7.36-7.44 (m, 3H), 4.66 (d, J=13.2 Hz,
1H), 3.65 (t, J=12.0 Hz, 2H), 3.29-3.41 (m, 2H), 3.21 (br. s., 1H),
2.64 (br. s., 1H), 2.20-2.40 (m, 3H), 2.15 (d, J=12.6 Hz, 1H), 2.06
(d, J=7.3 Hz, 1H). LC-MS: m/z 547.7 (M+H).sup.+.
Compound 263
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-2-(difluoromethox-
y)phenyl)quinoline-8-sulfonamide
##STR00497##
[0508] .sup.1H NMR (CHLOROFORM-d) .delta.: 2.09 (br. s., 4H) 2.35
(br. s., 2H), 3.30 (br. s., 1H), 3.61 (br. s., 2H), 4.60 (br. s.,
1H), 6.21 (t, J=72 Hz 1H), 7.04 (s, 1H), 7.17 (dd, J=8.46, 1.75 Hz,
1H), 7.25-7.28 (m, 1H), 7.30-7.33 (m, 1H), 7.40 (dd, J=7.79, 1.61
Hz, 1H), 7.51 (dd, J=7.66, 1.75 Hz, 1H), 7.61 (dd, J=4.57, 3.76 Hz,
1H), 7.63-7.66 (m, 1H), 7.84 (d, J=8.33 Hz, 1H), 8.08 (dd, J=8.33,
1.34 Hz, 1H), 8.30 (dd, J=8.33, 1.61 Hz, 1H), 8.43 (dd, J=7.39,
1.48 Hz, 1H), 8.97 (br. s., 1H), 9.14 (dd, J=4.30, 1.88 Hz, 1H).
LC-MS: m/z 589.0 (M+H).sup.+
Compound 151
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-3-(difluoromethox-
y)phenyl)quinoline-8-sulfonamide
##STR00498##
[0510] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.21 (br. s., 1H), 8.89
(br. s., 1H), 8.38-8.50 (m, 2H), 8.13 (d, J=7.8 Hz, 1H), 7.66-7.75
(m, 2H), 7.50 (br. s., 1H), 7.39 (d, J=7.5 Hz, 1H), 7.29-7.33 (m,
1H), 7.21-7.27 (m, 1H), 7.07-7.16 (m, 1H), 6.94-7.06 (m, 2H), 6.37
(s, 1H), 4.66 (d, J=14.5 Hz, 1H), 3.50 (br. s., 1H), 3.31 (d,
J=13.4 Hz, 2H), 2.29 (br. s., 2H), 2.11 (br. s., 2H). LC-MS: m/z
589.0 (M+H).sup.+
Compound 136
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-3-(trifluorometho-
xy)phenyl)quinoline-8-sulfonamide
##STR00499##
[0512] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.15 (dd, J=4.3, 1.3 Hz,
1H), 8.67 (br. s., 1H), 8.41 (dd, J=7.4, 1.2 Hz, 1H), 8.33 (dd,
J=8.3, 1.3 Hz, 1H), 8.05-8.13 (m, 1H), 7.60-7.69 (m, 2H), 7.45-7.54
(m, 1H), 7.38 (d, J=7.5 Hz, 1H), 7.31 (br. s., 1H), 7.20-7.27 (m,
1H), 7.09-7.20 (m, 2H), 6.96-7.09 (m, 1H), 4.65 (d, J=13.2 Hz, 1H),
3.43-3.64 (m, 1H), 3.28 (d, J=9.7 Hz, 2H), 3.01 (br. s., 1H),
2.18-2.39 (m, 1H), 2.02-2.18 (m, 2H), 1.88-2.02 (m, 1H). LC-MS: m/z
607.1 (M+H).sup.+
Compound 218
General Procedure 6, Step C
3-fluoro-N-(4-(4-hydroxy-4-phenylpiperidine-1-carbonyl)phenyl)quinoline-8--
sulfonamide
##STR00500##
[0514] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.06 (d, J=2.6 Hz, 1H),
8.36 (dd, J=1.0, 7.2 Hz, 1H), 8.24 (s, 1H), 8.07-8.02 (m, 1H),
7.96-7.89 (m, 1H), 7.65 (t, J=7.8 Hz, 1H), 7.51-7.30 (m, 5H),
7.25-7.19 (m, J=8.2 Hz, 2H), 7.14-7.04 (m, J=8.5 Hz, 2H), 4.59 (br.
s., 1H), 3.71-3.42 (m, 2H), 3.33 (br. s., 1H), 1.90-1.84 (m, 5H).
LC-MS: m/z 506.6 (M+H).sup.+
Compound 128
General Procedure 6, Step C
N-(4-(4-benzyl-4-hydroxypiperidine-1-carbonyl)phenyl)-3-fluoroquinoline-8--
sulfonamide
##STR00501##
[0516] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.04 (d, J=3.0 Hz, 1H),
8.28-8.40 (m, 2H), 8.02 (dd, J=8.3, 1.1 Hz, 1H), 7.92 (dd, J=8.2,
2.8 Hz, 1H), 7.63 (t, J=7.8 Hz, 1H), 7.22-7.36 (m, 3H), 7.12-7.21
(m, 4H), 7.02-7.12 (m, 2H), 4.36 (br. s., 1H), 3.27-3.09 (m, 3H),
2.74 (s, 2H), 1.76 (br. s., 3H), 1.59 (br. s., 2H). LC-MS: m/z
520.6 (M+H).sup.+
Compound 196
General Procedure 6, Step C
6-fluoro-N-(4-(4-hydroxy-4-phenylpiperidine-1-carbonyl)phenyl)quinoline-8--
sulfonamide
##STR00502##
[0518] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.08-9.19 (m, 1H), 8.56
(br. s., 1H), 8.28 (dd, J=8.4, 1.3 Hz, 1H), 8.18 (dd, J=7.6, 2.9
Hz, 1H), 7.61-7.73 (m, 2H), 7.44-7.49 (m, 2H), 7.39 (t, J=7.6 Hz,
2H), 7.29-7.34 (m, 1H), 7.21-7.27 (m, J=8.5 Hz, 2H), 7.07-7.13 (m,
J=8.5 Hz, 2H), 4.58 (br. s., 1H), 3.58 (br. s., 1H), 3.51 (br. s.,
1H), 3.30 (br. s., 1H), 1.95-2.20 (m, 2H), 1.86 (br. s., 3H).
LC-MS: m/z 506.6 (M+H).sup.+
Compound 223
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-6-fluoroqu-
inoline-8-sulfonamide
##STR00503##
[0520] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.94-9.05 (m, 1H), 8.33
(dd, J=8.3, 1.6 Hz, 1H), 8.20 (dd, J=8.6, 3.0 Hz, 1H), 7.76-7.83
(m, 1H), 7.67-7.74 (m, 1H), 7.57 (dd, J=8.3, 4.3 Hz, 1H), 7.26-7.39
(m, 2H), 7.18-7.26 (m, 1H), 7.09-7.18 (m, J=8.6 Hz, 2H), 6.96-7.09
(m, J=8.6 Hz, 2H), 4.45 (br. s., 1H), 2.71 (br. s., 2H), 1.47-1.68
(m, 6H). LC-MS: m/z 540.6 (M+H).sup.+
Compound 220
General Procedure 6, Step C
N-(4-(4-(2,3-difluorophenyl)-4-hydroxypiperidine-1-carbonyl)-2-methylpheny-
l)-5-fluoroquinoline-8-sulfonamide
##STR00504##
[0522] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.19 (dd, J=4.3, 1.6 Hz,
1H), 8.63 (dd, J=8.5, 1.7 Hz, 1H), 8.36 (dd, J=8.3, 5.9 Hz, 1H),
7.78 (dd, J=8.6, 4.3 Hz, 1H), 7.34-7.46 (m, 2H), 7.09-7.20 (m, 4H),
7.04 (dd, J=8.3, 1.6 Hz, 1H), 4.58 (br. s., 1H), 4.48 (d, J=10.2
Hz, 1H), 3.52 (br. s., 3H), 2.06-2.36 (m, 7H). LC-MS: m/z 556.7
(M+H).sup.+
Compound 232
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-3,5-difluoropheny-
l)quinoline-8-sulfonamide
##STR00505##
[0524] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.15 (dd, J=4.3, 1.6 Hz,
1H), 8.75 (br. s., 1H), 8.45 (dd, J=7.4, 1.2 Hz, 1H), 8.36 (dd,
J=8.3, 1.3 Hz, 1H), 8.13 (d, J=8.1 Hz, 1H), 7.63-7.72 (m, 2H), 7.50
(dd, J=7.8, 1.6 Hz, 1H), 7.39 (dd, J=7.7, 1.5 Hz, 1H), 7.31 (d,
J=7.5 Hz, 1H), 7.25 (td, J=7.5, 1.6 Hz, 1H), 6.69-6.80 (m, 2H),
4.67 (d, J=10.7 Hz, 1H), 3.53-3.68 (m, 1H), 3.26-3.46 (m, 2H), 2.94
(br. s., 1H), 2.32-2.00 (m, 4H). LC-MS: m/z 558.1 (M+H).sup.+
Compound 246
General Procedure 6, Step C
N-(4-(4-(ethoxymethyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-s-
ulfonamide
##STR00506##
[0526] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.10-9.20 (m, 1H), 8.55
(br. s., 1H), 8.26-8.43 (m, 2H), 8.05 (d, J=8.2 Hz, 1H), 7.55-7.70
(m, 2H), 7.12-7.20 (m, J=8.5 Hz, 2H), 7.03-7.12 (m, J=8.5 Hz, 2H),
4.37 (br. s., 1H), 3.53 (q, J=6.9 Hz, 2H), 3.45 (br. s., 1H), 3.36
(br. s., 1H), 3.26 (s, 3H), 2.29-2.41 (m, 1H), 1.65 (br. s., 3H),
1.55 (br. s., 1H), 1.20 (td, J=7.0, 2.2 Hz, 3H). LC-MS: m/z 470.6
(M+H).sup.+
Compound 225
General Procedure 6, Step C
N-[4-[4-hydroxy-4-(2-methoxyethyl)piperidine-1-carbonyl]phenyl]quinoline-8-
-sulfonamide
##STR00507##
[0528] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.28 (br. s., 3H), 1.58
(br. s., 2H), 1.73-1.79 (m, 4H), 2.04 (d, J=4.99 Hz, 1H), 3.25 (br.
s., 1H), 3.45 (br. s., 2H), 3.65 (br. s., 2H), 4.38 (br. s., 1H),
7.11 (m, J=8.22 Hz, 2H), 7.18 (m, J=8.51 Hz, 2H), 7.61-7.72 (m,
2H), 8.09 (d, J=8.22 Hz, 1H), 8.36-8.44 (m, 2H), 8.86 (br. s., 1H),
9.19-9.24 (m, 1H). LC-MS: m/z 470.6 (M+H).sup.+
Compound 144
General Procedure 6, Step C
N-(4-(4-(cyclopropylmethyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinolin-
e-8-sulfonamide
##STR00508##
[0530] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.19 (d, J=2.8 Hz, 1H),
8.67 (s, 1H), 8.40 (dd, J=7.3, 1.3 Hz, 1H), 8.35 (d, J=7.2 Hz, 1H),
8.07 (dd, J=8.2, 1.2 Hz, 1H), 7.70-7.58 (m, 2H), 7.18 (d, J=8.5 Hz,
2H), 7.10 (d, J=8.5 Hz, 2H), 4.37 (s, 1H), 3.42 (d, J=38.4 Hz, 2H),
3.20 (s, 1H), 1.62 (d, J=56.1 Hz, 4H), 1.42 (s, 2H), 0.80-0.66 (m,
1H), 0.59-0.46 (m, 2H), 0.10 (q, J=4.9 Hz, 2H). LC-MS: m/z 466.6
(M+H).sup.+
Compound 176
General Procedure 6, Step C
N-(4-(4-((2,2-difluorocyclopropyl)methyl)-4-hydroxypiperidine-1-carbonyl)p-
henyl)quinoline-8-sulfonamide
##STR00509##
[0532] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=4.3, 1.6 Hz,
1H), 8.64 (br. s., 1H), 8.28-8.43 (m, 2H), 8.07 (dd, J=8.1, 1.3 Hz,
1H), 7.54-7.71 (m, 2H), 7.13-7.21 (m, 2H), 7.06-7.13 (m, 2H),
4.23-4.51 (m, 1H), 3.49 (d, J=13.2 Hz, 1H), 3.34 (br. s., 1H), 3.23
(br. s., 1H), 1.58 (br. s., 2H), 1.38-1.56 (m, 5H), 0.77-1.02 (m,
3H). LC-MS: m/z 502.6 (M+H).sup.+
Compound 210
General Procedure 6, Step C
N-(6-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-2-methylpyridin-3-
-yl)quinoline-8-sulfonamide
##STR00510##
[0534] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.14 (dd, J=4.4, 1.6 Hz,
1H), 8.46 (dd, J=7.3, 1.3 Hz, 1H), 8.34 (dd, J=8.3, 1.5 Hz, 1H),
8.09-8.14 (m, 1H), 7.78 (d, J=8.3 Hz, 1H), 7.61-7.71 (m, 2H), 7.50
(dd, J=7.8, 1.5 Hz, 1H), 7.39 (dd, J=7.7, 1.4 Hz, 1H), 7.31 (s,
1H), 7.22-7.28 (m, 1H), 4.63 (d, J=13.1 Hz, 1H), 3.84 (d, J=13.6
Hz, 1H), 3.54-3.64 (m, 1H), 3.33 (td, J=12.9, 2.6 Hz, 1H), 2.46 (s,
3H), 2.24-2.38 (m, 2H), 1.97-2.16 (m, 2H), 1.60-1.75 (m, 2H).
LC-MS: m/z 537.7 (M+H).sup.+
Compound 261
General Procedure 6, Step C
N-(3-cyano-4-(4-hydroxy-4-phenylpiperidine-1-carbonyl)phenyl)quinoline-8-s-
ulfonamide
##STR00511##
[0536] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.20 (dd, J=4.3, 1.6 Hz,
1H), 8.43 (dd, J=12.5, 7.8 Hz, 1H), 8.43 (dd, J=15.6, 7.9 Hz, 1H),
8.14 (dd, J=8.2, 1.2 Hz, 1H), 7.66-7.74 (m, 2H), 7.45-7.49 (m, 4H),
7.39 (d, J=7.6 Hz, 4H), 4.64 (d, J=13.5 Hz, 2H), 3.74 (d, J=7.0 Hz,
2H), 3.27 (br. s., 1H), 3.13 (br. s., 1H), 2.02 (dd, J=14.2, 4.0
Hz, 4H). LC-MS: m/z 512.6 (M+H).sup.+
Compound 197
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)naphthalene-
-1-sulfonamide
##STR00512##
[0538] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.70 (d, J=8.3 Hz, 1H),
8.25 (d, J=7.0 Hz, 1H), 8.05 (d, J=8.1 Hz, 1H), 7.94 (d, J=7.8 Hz,
1H), 7.57-7.70 (m, 3H), 7.46-7.55 (m, 2H), 7.36-7.43 (m, 1H),
7.19-7.27 (m, 3H), 7.00 (d, J=8.6 Hz, 2H), 4.64 (br. s., 1H), 3.56
(br. s., 1H), 3.51 (s, 1H), 3.31 (br. s., 1H), 2.36 (br. s., 1H),
2.15-2.23 (m, 1H), 1.91-2.13 (m, 3H). LC-MS: m/z 521.0
(M+H).sup.+
Compound 102
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)chroman-8-s-
ulfonamide
##STR00513##
[0540] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.68 (d, J=7.8 Hz, 1H),
7.54 (dd, J=7.8, 1.6 Hz, 1H), 7.39 (dd, J=7.7, 1.5 Hz, 1H),
7.29-7.33 (m, 2H), 7.19-7.28 (m, 2H), 7.17 (d, J=8.6 Hz, 2H), 6.87
(t, J=7.8 Hz, 1H), 4.63 (br. s., 1H), 4.36-4.47 (m, 2H), 3.61 (br.
s., 2H), 3.31 (br. s., 1H), 2.81 (t, J=6.3 Hz, 2H), 2.39 (br. s.,
1H), 2.14-2.32 (m, 1H), 2.01-2.12 (m, 3H), 1.87-2.01 (m, 1H), 1.71
(d, J=14.2 Hz, 1H). LC-MS: m/z 527.7 (M+H).sup.+
Compound 186
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)benzofuran--
7-sulfonamide
##STR00514##
[0542] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.75-7.88 (m, 3H), 7.52
(dd, J=7.9, 1.5 Hz, 1H), 7.40 (dd, J=7.5, 1.3 Hz, 1H), 7.30-7.35
(m, 2H), 7.21-7.28 (m, 3H), 7.10 (d, J=8.6 Hz, 2H), 6.90 (d, J=2.1
Hz, 1H), 4.64 (br. s., 1H), 3.59 (br. s., 1H), 3.51 (s, 1H), 3.31
(br. s., 1H), 2.91 (s, 1H), 2.14-2.31 (m, 1H), 2.09 (br. s., 1H),
1.86-2.07 (m, 2H). LC-MS: m/z 511.0 (M+H).sup.+
Compound 157
General Procedure 6, Step C
N-(3-chloro-4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)qu-
inoline-8-sulfonamide
##STR00515##
[0544] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (d, J=4.0 Hz, 1H),
8.42 (d, J=7.3 Hz, 1H), 8.35 (d, J=8.1 Hz, 1H), 8.10 (d, J=8.3 Hz,
1H), 8.03 (d, J=5.4 Hz, 1H), 7.61-7.69 (m, 2H), 7.47-7.55 (m, 1H),
7.39 (d, J=7.5 Hz, 1H), 7.19-7.25 (m, 1H), 7.16 (s, 1H), 6.95-7.13
(m, 3H), 4.63-4.73 (m, 1H), 3.61 (d, J=11.0 Hz, 1H), 3.21-3.35 (m,
2H), 2.35 (td, J=13.2, 4.6 Hz, 2H), 2.10 (t, J=11.3 Hz, 2H). LC-MS:
m/z 556.5 (M+H).sup.+
Compound 222
General Procedure 6, Step C
N-(2-chloro-4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)qu-
inoline-8-sulfonamide
##STR00516##
[0546] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.13 (dd, J=4.3, 1.6 Hz,
1H), 8.92 (br. s., 1H), 8.48 (dd, J=7.4, 1.2 Hz, 1H), 8.29 (dd,
J=8.3, 1.6 Hz, 1H), 8.05-8.12 (m, 1H), 7.84 (d, J=8.6 Hz, 1H),
7.58-7.68 (m, 2H), 7.51 (dd, J=7.8, 1.6 Hz, 1H), 7.40 (dd, J=7.7,
1.5 Hz, 1H), 7.30-7.34 (m, 1H), 7.23-7.27 (m, 1H), 7.19 (dd, J=8.6,
1.9 Hz, 1H), 4.60 (br. s., 1H), 3.61 (br. s., 2H), 3.31 (br. s.,
1H), 2.91 (br. s., 1H), 2.14-2.27 (m, 1H), 1.91-2.14 (m, 3H).
LC-MS: m/z 556.5 (M+H).sup.+
Compound 253
General Procedure 6, Step C
N-(4-(4-hydroxy-4-(3-hydroxypropyl)piperidine-1-carbonyl)phenyl)quinoline--
8-sulfonamide
##STR00517##
[0548] .sup.1H NMR (DMSO-d.sub.6) .delta.: 10.40 (s, 1H), 9.13 (dd,
J=4.1, 1.8 Hz, 1H), 8.52 (dd, J=8.5, 1.8 Hz, 1H), 8.42 (dd, J=7.3,
1.2 Hz, 1H), 8.29 (dd, J=8.2, 1.5 Hz, 1H), 7.63-7.85 (m, 2H),
7.01-7.16 (m, 4H), 4.39 (br. s., 1H), 4.25 (s, 1H), 3.17 (br. s.,
2H), 3.07 (br. s., 1H), 1.39-1.51 (m, 3H), 1.34 (dd, J=9.4, 5.6 Hz,
5H). LC-MS: m/z 470.2 (M+H).sup.+
Compound 224
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-2-fluoroqu-
inoline-8-sulfonamide
##STR00518##
[0550] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.33-8.48 (m, 2H),
8.02-8.07 (m, 2H), 7.60 (t, J=7.8 Hz, 1H), 7.49 (dd, J=7.8, 1.3 Hz,
1H), 7.37 (dd, J=7.7, 1.5 Hz, 1H), 7.28 (br. s., 1H), 7.21-7.25 (m,
2H), 7.20 (s, 1H), 7.11-7.16 (m, 2H), 3.56 (br. s., 3H), 2.18-2.38
(m, 2H), 1.64 (br. s., 4H). LC-MS: m/z 540.6 (M+H).sup.+
Compound 229
General Procedure 6, Step C
5-fluoro-N-(4-(4-(6-fluoro-2-methylpyridin-3-yl)-4-hydroxypiperidine-1-car-
bonyl)phenyl)quinoline-8-sulfonamide
##STR00519##
[0552] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.21 (dd, J=4.3, 1.6 Hz,
1H), 8.57 (dd, J=8.6, 1.6 Hz, 1H), 8.34-8.45 (m, 2H), 7.68-7.74 (m,
2H), 7.27 (s, 1H), 7.17-7.22 (m, J=8.3 Hz, 2H), 7.05-7.11 (m, J=8.3
Hz, 2H), 6.70 (dd, J=8.5, 3.6 Hz, 1H), 3.46-3.65 (m, 2H), 1.91-2.08
(m, 4H), 1.62-1.82 (m, 4H). LC-MS: m/z 539.7 (M+H).sup.+
Compound 115
General Procedure 6, Step C
N-(4-(4-benzyl-4-hydroxypiperidine-1-carbonyl)-3-fluorophenyl)quinoline-8--
sulfonamide
##STR00520##
[0554] .sup.1H NMR (DMSO-d.sub.6) .delta.: 10.67 (s, 1H),
9.119-9.110 (m, 1H), 8.48 (dd, 2H, J=8 Hz & J=7.2 Hz), 8.29 (d,
1H, J=8.4 Hz), 7.77-7.69 (m, 2H), 7.25-7.06 (m, 6H), 6.94-6.90 (m,
2H), 4.45 (s, 1H), 4.12-4.09 (m, 1H), 3.17-2.98 (m, 3H), 2.68 (s,
2H), 1.39-1.23 (m, 4H). LC-MS: m/z 520.6 (M+H).sup.+
Compound 163
General Procedure 6, Step C
N-(4-(4-benzyl-4-hydroxypiperidine-1-carbonyl)-2-fluorophenyl)quinoline-8--
sulfonamide
##STR00521##
[0556] .sup.1H NMR (DMSO-d.sub.6) .delta.: 9.88 (bs, 1H), 9.08-9.06
(m, 1H), 8.57-8.54 (m, 1H), 8.29 (t, 2H, J=8.4 Hz), 7.31-7.17 (m,
6H), 7.08-7.03 (m, 2H), 4.44 (s, 1H), 4.09-4.01 (m, 1H), 3.21-3.02
(m, 3H), 2.65 (s, 2H), 1.41-1.23 (m, 4H). LC-MS: m/z 520.6
(M+H).sup.+
Compound 101
General Procedure 6, Step C
N-(4-(4-benzyl-4-hydroxypiperidine-1-carbonyl)-2-methylphenyl)quinoline-8--
sulfonamide
##STR00522##
[0558] .sup.1H NMR (DMSO-d.sub.6) .delta.: 9.35 (s, 1H), 9.3-9.12
(m, 1H), 8.57 (d, 1H, J=8.4 Hz), 8.28 (dd, 2H, J=8.8 Hz & J=7.2
Hz), 7.77-7.68 (m, 2H), 7.25-7.17 (m, 5H), 7.04-6.95 (m, 3H), 4.08
(bs, 1H), 3.39-3.37 (m, 1H), 3.22-3.01 (m, 3H), 2.65 (s, 2H), 2.04
(s, 3H), 1.40-1.24 (m, 4H). LC-MS: m/z 516.6 (M+H).sup.+
Compound 112
General Procedure 6, Step C
N-(4-(4-benzyl-4-hydroxypiperidine-1-carbonyl)-3-methoxyphenyl)quinoline-8-
-sulfonamide
##STR00523##
[0560] .sup.1H NMR (DMSO-d.sub.6) .delta.: 10.26 (bs, 1H), 9.13
(bs, 1H), 8.49-8.21 (m, 2H), 7.71-7.69 (m, 2H), 7.23-7.17 (m, 5H),
6.80-6.61 (m, 3H), 4.08-4.07 (m, 1H), 3.54 (s, 3H), 3.18 (s, 2H),
2.92-2.84 (m, 2H), 2.66-2.62 (m, 2H), 1.45-1.34 (m, 4H). LC-MS: m/z
532.6 (M+H).sup.+
Compound 131
General Procedure 6, Step C
N-(4-(4-benzyl-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-sulfonami-
de
##STR00524##
[0562] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.14-9.13 (m, 1H),
8.36-8.27 (m, 2H), 8.04-8.02 (m, 1H), 7.62-7.56 (m, 2H), 7.33-7.27
(m, 2H), 7.16-7.15 (m, 3H), 7.14-7.13 (m, 2H), 4.36 (bs, 1H),
3.72-3.66 (m, 1H), 3.44-3.42 (m, 2H), 3.18-3.12 (m, 1H), 2.74 (s,
2H), 1.48-1.42 (m, 4H). LC-MS: m/z 502.6 (M+H).sup.+
Compound 226
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)naphthalen-1-yl)qu-
inoline-8-sulfonamide
##STR00525##
[0564] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.27 (d, J=4.3 Hz, 2H),
8.39-8.48 (m, 2H), 8.29-8.38 (m, 1H), 8.12 (dd, J=7.5, 4.3 Hz, 1H),
7.83-7.92 (m, 1H), 7.65-7.76 (m, 2H), 7.48-7.57 (m, 3H), 7.39 (d,
J=7.5 Hz, 1H), 7.20-7.27 (m, 2H), 7.16 (d, J=2.4 Hz, 1H), 4.88 (br.
s., 1H), 3.33-3.59 (m, 2H), 3.17-3.33 (m, 2H), 2.56 (d, J=5.1 Hz,
1H), 2.45 (d, J=4.8 Hz, 1H), 1.85 (d, J=11.0 Hz, 1H), 1.73 (d,
J=16.1 Hz, 1H). LC-MS: m/z 573.1 (M+H).sup.+
Compound 169
General Procedure 6, Step C
N-(4-(4-(2,3-difluorobenzyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoli-
ne-8-sulfonamide
##STR00526##
[0566] .sup.1H NMR (400 MHz, CDCl.sub.3) .delta.: 9.16 (dd, J=4.2,
1.4 Hz, 1H), 8.38 (d, J=7.3 Hz, 1H), 8.31 (d, J=8.4 Hz, 1H), 8.06
(d, J=8.2 Hz, 1H), 7.69-7.57 (m, 2H), 7.17-7.13 (m, 2H), 7.13-7.05
(m, 3H), 7.04-6.92 (m, 2H), 6.73 (s, 1H), 4.39 (s, 1H), 3.87 (s,
1H), 3.40 (s, 1H), 3.23 (s, 1H), 2.84-2.74 (m, 2H), 1.74-1.60 (m,
2H), 1.71-1.59 (m, 4H). LC-MS: m/z 538.6 (M+H).sup.+
Compound 158
General Procedure 6, Step C
5-fluoro-N-(4-(4-(2-fluorobenzyl)-4-hydroxypiperidine-1-carbonyl)phenyl)qu-
inoline-8-sulfonamide
##STR00527##
[0568] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.19 (s, 1H), 8.53 (s,
1H), 8.41-8.33 (m, 1H), 7.66 (s, 1H), 7.24 (dd, J=13.3, 6.0 Hz,
2H), 7.17 (dd, J=14.0, 7.9 Hz, 3H), 7.13-7.08 (m, 2H), 7.05 (d,
J=7.6 Hz, 3H), 4.37 (s, 1H), 3.49-3.05 (m, 3H), 2.82 (s, 2H),
1.78-1.50 (m, 4H). LC-MS: m/z 538.1 (M+H).sup.+
Compound 120
General Procedure 6, Step C
N-(4-(4-(2,6-difluorobenzyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoli-
ne-8-sulfonamide
##STR00528##
[0570] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (dd, J=4.3, 1.9 Hz,
1H), 8.58 (br. s., 1H), 8.35 (dd, J=18.0, 7.8 Hz, 1H), 8.35 (dd,
J=17.9, 7.9 Hz, 1H), 8.06 (dd, J=8.3, 1.3 Hz, 1H), 7.57-7.69 (m,
2H), 7.19-7.27 (m, 1H), 7.14-7.19 (m, 2H), 7.05-7.11 (m, 2H),
6.86-6.94 (m, 2H), 4.35-4.45 (m, 1H), 3.41-3.53 (m, 1H), 3.31 (br.
s., 1H), 3.08-3.20 (m, 1H), 2.88-2.92 (m, 1H), 2.82 (s, 1H), 1.70
(br. s., 1H), 1.64 (dd, J=11.1, 6.9 Hz, 2H), 1.43-1.58 (m, 2H).
LC-MS: m/z 538.7 (M+H).sup.+
Compound 109
General Procedure 6, Step C
N-(4-(4-hydroxy-4-(2-(trifluoromethyl)benzyl)piperidine-1-carbonyl)phenyl)-
quinoline-8-sulfonamide
##STR00529##
[0572] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.15 (dd, J=4.3, 1.6 Hz,
1H), 8.60 (br. s., 1H), 8.27-8.40 (m, 2H), 8.04 (dd, J=8.2, 1.2 Hz,
1H), 7.55-7.71 (m, 3H), 7.43-7.54 (m, 2H), 7.31-7.40 (m, 1H),
7.12-7.21 (m, J=8.6 Hz, 2H), 7.01-7.12 (m, J=8.6 Hz, 2H), 4.41 (br.
s., 1H), 3.46 (d, J=9.1 Hz, 1H), 3.27 (br. s., 1H), 3.05 (br. s.,
1H), 2.98 (s, 2H), 1.83 (br. s., 1H), 1.66 (br. s., 2H), 1.56 (br.
s., 2H), 1.45 (br. s., 1H). LC-MS: m/z 570.7 (M+H).sup.+
Compound 117
General Procedure 6, Step C
N-(4-(4-hydroxy-4-neopentylpiperidine-1-carbonyl)phenyl)quinoline-8-sulfon-
amide
##STR00530##
[0574] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.20 (d, J=2.9 Hz, 1H),
8.73 (s, 1H), 8.41 (dd, J=7.3, 1.2 Hz, 1H), 8.36 (d, J=7.3 Hz, 1H),
8.08 (dd, J=8.2, 1.2 Hz, 1H), 7.70-7.60 (m, 2H), 7.18 (d, J=8.5 Hz,
2H), 7.10 (d, J=8.5 Hz, 2H), 4.36 (s, 1H), 3.39 (d, J=33.4 Hz, 2H),
3.16 (s, 1H), 1.75-1.57 (m, 4H), 1.49 (s, 2H), 1.05 (s, 9H). LC-MS:
m/z 482.7 (M+H).sup.+
Compound 178
General Procedure 6, Step C
N-(4-(4-(2,3-difluorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)benzo[d-
]thiazole-4-sulfonamide
##STR00531##
[0576] .sup.1H NMR (DMSO-d.sub.6) .delta.: 10.79 (s, 1H), 9.66 (s,
1H), 8.50 (d, J=8.1 Hz, 1H), 8.12 (d, J=7.5 Hz, 1H), 7.65 (t, J=7.8
Hz, 1H), 7.41 (t, J=7.4 Hz, 1H), 7.33 (q, J=8.2 Hz, 1H), 7.16-7.24
(m, 3H), 7.11-7.15 (m, 2H), 4.31 (br. s., 1H), 3.32-3.13 (br. s.,
3H), 2.00 (d, J=7.3 Hz, 2H), 1.63 (br. s., 2H). LC-MS: m/z 530.6
(M+H).sup.+
Compound 215
General Procedure 6, Step C
N-(4-(4-(2-(difluoromethyl)phenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)b-
enzo[d]thiazole-4-sulfonamide
##STR00532##
[0578] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (br. s., 1H), 8.19
(d, J=7.8 Hz, 1H), 8.08-8.14 (m, 1H), 7.93-8.03 (m, 1H), 7.84 (d,
J=4.8 Hz, 1H), 7.48-7.60 (m, 2H), 7.44 (br. s., 1H), 7.37 (br. s.,
1H), 7.23 (d, J=8.3 Hz, 2H), 7.10-7.18 (m, 2H), 4.91-5.06 (m, 1H),
4.54-4.73 (m, 1H), 3.80 (br. s., 2H), 3.72 (br. s., 1H), 3.45-3.65
(m, 2H), 2.32-2.61 (m, 2H). LC-MS: m/z 544.7 (M+H).sup.+
Compound 241
General Procedure 6, Step C
N-(4-(4-hydroxy-4-(2-hydroxy-2-methylpropyl)piperidine-1-carbonyl)phenyl)q-
uinoline-8-sulfonamide
##STR00533##
[0580] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (dd, J=4.3, 1.8 Hz,
1H), 8.56 (br. s., 1H), 8.38 (dd, J=7.3, 1.3 Hz, 1H), 8.31 (dd,
J=8.4, 1.6 Hz, 1H), 8.06 (dd, J=8.3, 1.1 Hz, 1H), 7.57-7.67 (m,
2H), 7.17 (d, J=8.5 Hz, 2H), 7.08 (d, J=8.5 Hz, 2H), 4.31 (br. s.,
1H), 3.40 (br. s., 2H), 3.21 (br. s., 1H), 1.86-1.65 (br.m, 6H),
1.36 (s, 6H). LC-MS: m/z 484.6 (M+H).sup.+
Compound 167
General Procedure 6, Step C
N-(4-(4-butyl-4-hydroxypiperidine-1-carbonyl)phenyl)quinoline-8-sulfonamid-
e
##STR00534##
[0582] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (d, J=2.6 Hz, 1H),
8.59 (br. s., 1H), 8.25-8.42 (m, 2H), 8.06 (d, J=7.9 Hz, 1H),
7.55-7.68 (m, 2H), 7.17 (d, J=8.2 Hz, 2H), 7.08 (d, J=8.2 Hz, 2H),
4.33 (br. s., 1H), 3.42 (br. s., 1H), 3.34 (br. s., 1H), 3.19 (br.
s., 1H), 1.60 (br. s., 2H), 1.37-1.37 (m, 11H), 0.9 (t, J=6.6 Hz,
3H). LC-MS: m/z 468.6 (M+H).sup.+
Compound 132
General Procedure 6, Step C
N-(4-(4-hydroxy-4-((1-methylcyclopropyl)methyl)piperidine-1-carbonyl)pheny-
l)benzo[d]thiazole-4-sulfonamide
##STR00535##
[0584] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.15-8.23
(m, 1H), 8.06-8.13 (m, 1H), 7.92 (s, 1H), 7.54 (t, J=7.8 Hz, 1H),
7.16-7.24 (m, J=8.3 Hz, 2H), 7.07-7.14 (m, J=8.3 Hz, 2H), 4.34 (br.
s., 1H), 3.29 (br. s., 3H), 1.66 (br. s., 2H), 1.47 (s, 2H), 1.33
(br. s., 1H), 1.28 (s, 1H), 1.17 (s, 3H), 0.25-0.38 (m, 4H). LC-MS:
m/z 480.6 (M+H).sup.+
Compound 121
General Procedure 6, Step C
N-(4-(4-hydroxy-4-((1-methylcyclopropyl)methyl)piperidine-1-carbonyl)pheny-
l)quinoline-8-sulfonamide
##STR00536##
[0586] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (dd, J=4.3, 1.6 Hz,
1H), 8.56 (br. s., 1H), 8.38 (dd, J=7.5, 1.3 Hz, 1H), 8.32 (dd,
J=8.3, 1.6 Hz, 1H), 8.06 (dd, J=8.2, 1.2 Hz, 1H), 7.58-7.67 (m,
2H), 7.14-7.20 (m, J=8.6 Hz, 2H), 7.04-7.11 (m, J=8.6 Hz, 2H), 4.36
(br. s., 1H), 3.44 (br. s., 1H), 3.36 (br. s., 1H), 3.17 (br. s.,
1H), 1.74 (br. s., 1H), 1.70 (br. s., 1H), 1.63 (d, J=6.7 Hz, 3H),
1.46 (s, 2H), 1.17 (s, 3H), 0.24-0.37 (m, 4H). LC-MS: m/z 480.6
(M+H).sup.+
Compound 198
General Procedure 6, Step C
N-(4-(4-(cyclopropylmethyl)-4-hydroxypiperidine-1-carbonyl)phenyl)benzo[d]-
thiazole-4-sulfonamide
##STR00537##
[0588] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (br. s., 1H), 8.19
(d, J=7.8 Hz, 1H), 8.10 (d, J=7.3 Hz, 1H), 7.94 (s, 1H), 7.54 (t,
J=7.7 Hz, 1H), 7.20 (br. s., 2H), 7.12 (br. s., 2H), 4.38 (br. s.,
1H), 3.51 (br. s., 1H), 3.36 (br. s., 2H), 2.06 (br. s., 2H), 1.69
(d, J=8.6 Hz, 2H), 1.43 (br. s., 2H), 0.74 (br. s., 1H), 0.53 (d,
J=7.5 Hz, 2H), 0.11 (d, J=4.3 Hz, 2H). LC-MS: m/z 472.6
(M+H).sup.+
Compound 201
General Procedure 6, Step C
N-(4-(4-(cyclobutylmethyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-5-fluoro-
quinoline-8-sulfonamide
##STR00538##
[0590] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.21 (dd, J=4.2, 1.5 Hz,
1H), 8.57 (dd, J=8.5, 1.5 Hz, 1H), 8.37 (dd, J=8.2, 5.7 Hz, 2H),
7.70 (dd, J=8.5, 4.3 Hz, 1H), 7.26 (d, J=8.7 Hz, 1H), 7.17 (d,
J=8.4 Hz, 2H), 7.07 (d, J=8.4 Hz, 2H), 4.33 (s, 1H), 3.54-3.08 (m,
4H), 2.49 (dd, J=15.5, 7.7 Hz, 1H), 2.13-2.01 (m, 2H), 1.91 (dd,
J=18.4, 9.4 Hz, 1H), 1.83-1.75 (m, 1H), 1.60 (d, J=7.0 Hz, 5H),
1.48-1.51 (m, 2H), 1.42 (s, 2H), 1.27 (s, 2H). LC-MS: m/z 498.6
(M+H).sup.+
Compound 134
General Procedure 6, Step C
N-(4-(4-hydroxy-4-neopentylpiperidine-1-carbonyl)phenyl)benzo[d]thiazole-4-
-sulfonamide
##STR00539##
[0592] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.19 (d,
J=8.3 Hz, 1H), 8.10 (d, J=8.3 Hz, 1H), 7.91 (s, 1H), 7.54 (t, J=7.9
Hz, 1H), 7.18-7.22 (m, J=8.3 Hz, 2H), 7.09-7.13 (m, J=8.3 Hz, 2H),
1.65 (br. s., 4H), 1.50 (s, 2H), 1.28 (s, 4H), 1.05 (s, 9H). LC-MS:
m/z 488.6 (M+H).sup.+
Compound 187
General Procedure 6, Step C
5-fluoro-N-(4-(4-hydroxy-4-neopentylpiperidine-1-carbonyl)phenyl)quino
line-8-sulfonamide
##STR00540##
[0594] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.23 (dd, J=4.3, 1.5 Hz,
1H), 8.60 (dd, J=8.5, 1.5 Hz, 1H), 8.44 (s, 1H), 8.39 (dd, J=8.3,
5.7 Hz, 1H), 7.72 (dd, J=8.5, 4.3 Hz, 1H), 7.31-7.26 (m, 1H), 7.18
(d, J=8.5 Hz, 2H), 7.08 (d, J=8.5 Hz, 2H), 4.36 (s, 1H), 3.50-3.02
(m, 3H), 1.70-1.58 (m, 4H), 1.49 (s, 2H), 1.06 (d, J=8.3 Hz, 9H).
LC-MS: m/z 500.71 (M+H).sup.+
Compound 208
General Procedure 6, Step C
5-fluoro-N-(4-(4-hydroxy-4-(2-(trifluoromethyl)benzyl)piperidine-1-carbony-
l)phenyl)quinoline-8-sulfonamide
##STR00541##
[0596] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.46-1.64 (m, 3H), 1.81
(br. s., 1H), 2.98 (s, 2H), 3.05 (br. s., 1H), 3.28 (br. s., 1H),
3.38-3.51 (m, 1H), 4.42 (br. s., 1H), 7.06 (m, J 8.33 Hz, 2H), 7.16
(m, J=8.33 Hz, 2H), 7.23-7.27 (m, 1H), 7.32-7.39 (m, 1H), 7.44-7.53
(m, 2H), 7.64-7.72 (m, 2H), 8.37 (dd, J=8.19, 5.78 Hz, 1H), 8.41
(s, 1H), 8.55 (dd, J=8.60, 1.61 Hz, 1H), 9.20 (dd, J=4.30, 1.61 Hz,
1H). LC-MS: m/z 588.7 (M+H).sup.+
Compound 412
General Procedure 6, Step C
N-(4-(4-hydroxy-4-(2-(trifluoromethyl)benzyl)piperidine-1-carbonyl)phenyl)-
benzo[d]thiazole-4-sulfonamide
##STR00542##
[0598] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.44 (br. s., 1H),
1.51-1.70 (m, 3H), 2.99 (s, 2H), 3.06 (br. s., 1H), 3.30 (br. s.,
1H), 3.39-3.47 (m, 1H), 4.42 (br. s., 1H), 7.10 (m, J=8.60 Hz, 2H),
7.17 (m, J=8.60 Hz, 2H), 7.33-7.40 (m, 1H), 7.45-7.56 (m, 3H), 7.67
(d, J=7.79 Hz, 1H), 8.10 (dd, J=7.52, 1.07 Hz, 1H), 8.17 (dd,
J=8.06, 0.81 Hz, 1H), 8.22 (s, 1H), 9.29 (s, 1H). LC-MS: m/z 576.7
(M+H).sup.+
Compound 181
General Procedure 6, Step C
N-(4-(4-hydroxy-4-(2-methylallyl)piperidine-1-carbonyl)phenyl)benzo[d]thia-
zole-4-sulfonamide
##STR00543##
[0600] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.30 (s, 1H), 8.18 (dd,
J=8.1, 0.8 Hz, 1H), 8.08-8.14 (m, 1H), 8.06 (s, 1H), 7.53 (t, J=7.8
Hz, 1H), 7.17-7.24 (m, 2H), 7.06-7.15 (m, 2H), 4.96-5.03 (m, 1H),
4.78 (s, 1H), 4.36 (br. s., 1H), 3.44 (br. s., 1H), 3.35 (br. s.,
1H), 3.17 (br. s., 1H), 2.18-2.22 (m, 2H), 1.82 (s, 3H), 1.63 (br.
s., 2H), 1.48 (br. s., 2H). LC-MS: m/z 472.69 (M+H).sup.+
Compound 414
General Procedure 6, Step C
##STR00544##
[0602] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.14 (d, J=5.6 Hz, 1H),
8.80 (br. s., 1H),8.43 (d, J=7.3 Hz, 1H), 8.36 (d, J=8.3 Hz, 1H),
8.13 (d, J=8.1 Hz, 1H), 7.62-7.72 (m, 2H), 7.53 (s, 1H), 7.23-7.33
(m, 2H), 6.84 (t, J=56 Hz, 1H), 4.36 (br. s., 1H), 3.42 (br. s.,
2H), 3.22 (br. s., 1H), 1.84 (dt, J=12.9, 6.4 Hz, 1H), 1.64 (br.
s., 2H), 1.52 (br. s., 2H), 1.42 (d, J=5.9 Hz, 2H), 0.98 (d, J=6.7
Hz, 6H). LC-MS: m/z 518.7 (M+H).sup.+
Compound 415
General Procedure 6, Step C
(E)-N-(4-(4-(3,3-difluoroprop-1-en-1-yl)-4-hydroxypiperidine-1-carbonyl)ph-
enyl)quinoline-8-sulfonamide
##STR00545##
[0604] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.21 (dd, J=4.4, 1.7 Hz,
1H), 8.85 (s, 1H), 8.40 (ddd, J=9.9, 7.9, 1.4 Hz, 2H), 8.09 (dd,
J=8.2, 1.2 Hz, 1H), 7.72-7.61 (m, 2H), 7.19 (d, J=8.6 Hz, 2H), 7.13
(d, J=8.6 Hz, 2H), 6.28-5.84 (m, 3H), 4.43 (s, 1H), 3.51 (s, 1H),
3.30 (d, J=69.3 Hz, 2H), 1.82-1.52 (m, 4H). LC-MS: m/z 488.63
(M+H).sup.+
Compound 386
General Procedure 6, Step C
N-(4-(4-hydroxy-4-((2,2,2-trifluoroethoxy)methyl)piperidine-1-carbonyl)phe-
nyl)benzo[d]thiazole-4-sulfonamide
##STR00546##
[0606] .sup.1H NMR (METHANOL-d.sub.4) .delta.: 9.47 (s, 1H), 8.31
(dd, J=8.1, 1.1 Hz, 1H), 8.07-8.14 (m, 1H), 7.55 (t, J=7.8 Hz, 1H),
7.11-7.25 (m, 4H), 4.18-4.37 (m, 1H), 3.98 (q, J=9.0 Hz, 2H), 3.48
(s, 2H), 3.35-3.43 (m, 2H), 3.19 (br. s., 1H), 1.65 (br. s., 2H),
1.38-1.59 (m, 2H). LC-MS: m/z 530.7 (M+H).sup.+
Compound 387
General Procedure 6, Step C
N-(4-(4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)phenyl)benzo[d]-
thiazole-4-sulfonamide
##STR00547##
[0608] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.19 (d,
J=8.1 Hz, 1H), 8.10 (d, J=7.3 Hz, 1H), 7.92 (s, 1H), 7.55 (t, J=7.8
Hz, 1H), 7.16-7.24 (m, J=8.1 Hz, 2H), 7.06-7.15 (m, J=8.3 Hz, 2H),
5.37 (br. s., 1H), 4.36 (br. s., 1H), 3.34 (br. s., 2H), 3.22 (br.
s., 1H), 1.93-2.08 (m, 2H), 1.56-1.71 (m, 9H). LC-MS: m/z 510.7
(M+H).sup.+
Compound 388
General Procedure 6, Step C
4-hydroxy-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)quinazoli-
ne-8-sulfonamide
##STR00548##
[0610] .sup.1H NMR (METHANOL-d.sub.4) .delta.: 0.97 (d, J=6.72 Hz,
6H), 1.39 (d, J=5.91 Hz, 2H), 1.49 (br. s., 2H), 1.56 (br. s., 1H),
1.66 (br. s., 1H), 1.80-1.91 (m, 1H), 7.21-7.26 (m, 4H), 7.58 (t,
J=7.92 Hz, 1H), 8.28 (s, 1H), 8.39 (ddd, J=7.72, 6.11, 1.48 Hz,
2H). LC-MS: m/z 485.7 (M+H).sup.+
Compound 389
General Procedure 6, Step C
N-(4-(4-(4,4-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)phenyl)benzo[d]-
thiazole-4-sulfonamide
##STR00549##
[0612] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 1.22-1.37 (m,
2H), 1.59 (br. s., 6H), 1.75-1.94 (m, 2H), 3.19 (d, J=4.57 Hz, 1H),
3.32 (br. s., 1H), 3.47 (br. s., 1H), 5.84 (t, J=4.30 Hz, 1H), 7.11
(m, J=8.33 Hz, 2H), 7.19 (m, J=8.33 Hz, 2H), 7.54 (t, J=7.92 Hz,
1H), 7.96 (s, 1H), 8.10 (d, J=7.52 Hz, 1H), 8.19 (d, J=8.06 Hz,
1H), 9.31 (s, 1H). LC-MS: m/z 510.5 (M+H).sup.+
Compound 390
General Procedure 6, Step C
N-(4-(4-hydroxy-4-(2-(trifluoromethyl)allyl)piperidine-1-carbonyl)phenyl)b-
enzo[d]thiazole-4-sulfonamide
##STR00550##
[0614] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.19 (dd,
J=8.1, 0.8 Hz, 1H), 8.10 (dd, J=7.5, 1.1 Hz, 1H), 7.92 (s, 1H),
7.53-7.59 (m, 1H), 7.17-7.23 (m, J=8.6 Hz, 2H), 7.09-7.14 (m, J=8.6
Hz, 2H), 5.93 (d, J=1.3 Hz, 1H), 5.60 (s, 1H), 4.42 (br. s., 1H),
3.50 (br. s., 1H), 3.35 (br. s., 1H), 3.17 (br. s., 1H), 2.42 (s,
2H), 1.65 (br. s., 2H), 1.45 (br. s., 2H). LC-MS: m/z 526.7
(M+H).sup.+
Compound 421
General Procedure 6, Step C
N-(4-(4-hydroxy-4-(3,3,3-trifluoro-2-methylpropyl)piperidine-1-carbonyl)ph-
enyl)benzo[d]thiazole-4-sulfonamide
##STR00551##
[0616] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.19 (d,
J=7.5 Hz, 1H), 8.10 (d, J=7.5 Hz, 1H), 7.98 (s, 1H), 7.54 (t, J=7.8
Hz, 1H), 7.15-7.24 (m, J=8.3 Hz, 2H), 7.05-7.15 (m, J=8.3 Hz, 2H),
4.34 (br. s., 1H), 3.51 (s, 1H), 3.12-3.41 (m, 2H), 2.44 (d, J=7.0
Hz, 1H), 1.87 (dd, J=14.9, 2.0 Hz, 1H), 1.58 (br.s., 4H), 1.42 (dd,
J=14.9, 7.4 Hz, 2H), 1.21 (d, J=7.0 Hz, 3H). LC-MS: m/z 528.6
(M+H).sup.+
Compound 442
General Procedure 6, Step C
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)naphthalen-1-yl)qu-
inoline-8-sulfonamide
##STR00552##
[0618] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.27 (d, J=4.3 Hz, 2H),
8.39-8.48 (m, 2H), 8.29-8.38 (m, 1H), 8.12 (dd, J=7.5, 4.3 Hz, 1H),
7.83-7.92 (m, 1H), 7.65-7.76 (m, 2H), 7.48-7.57 (m, 3H), 7.39 (d,
J=7.5 Hz, 1H), 7.20-7.27 (m, 2H), 7.16 (d, J=2.4 Hz, 1H), 4.88 (br.
s., 1H), 3.33-3.59 (m, 2H), 3.17-3.33 (m, 2H), 2.56 (d, J=5.1 Hz,
1H), 2.45 (d, J=4.8 Hz, 1H), 1.85 (d, J=11.0 Hz, 1H), 1.73 (d,
J=16.1 Hz, 1H). LC-MS: m/z 573.1 (M+H).sup.+
General Procedure 7
##STR00553##
[0619] Step A:
[0620] To a mixture of RBr (0.08 mol) and magnesium turnings (4.8
g, 0.2 mol) in dry tetrahydrofuran (80 mL) was added a crystal of
iodine and the mixture was stirred at room temperature until
complete reaction had occurred. To this mixture was added
tert-butyl 4-oxopiperidine-1-carboxylate (7.7 g, 0.039 mol) in
tetrahydrofuran (20 mL) at 0.degree. C. After 1 h at 0.degree. C.,
and 3 h at room temperature the reaction mixture was diluted with
ammonium chloride solution, and the mixture was extracted with
ethyl acetate. After drying over Na.sub.2SO.sub.4, the solvent was
removed in vacuo and the residue was purified via flash
chromatography with 20% ethyl acetate/hexane to afford the title
compound 7B.
Step B:
[0621] A solution of the corresponding compound 7B (3.0 mmol) in
the solution of HCl in 1,4-dioxane (3M, 5 mL) was stirred at room
temperature for 3 hours. The solution was evaporated to dryness
under reduced pressure to give the crude product 3 which was used
in the next step without further purification.
Step C:
[0622] To a solution of compound 7C (0.2 mmol) in DMF (5 mL) was
added HBTU (91 mg, 0.24 mmol) and the mixture was stirred at r.t.
for 20 min, then Intermediate F (0.2 mmol) and DIPEA (0.6 mmol)
were added. After stirring overnight, the reaction was partitioned
between satd. Na.sub.2CO.sub.3 solution and DCM. The organic layer
was separated and washed with water and brine, dried over
Na.sub.2SO.sub.4 and concentrated, and then purified by a standard
method to give title product 7D.
Compound 392
General Procedure 7, Step C
N-(4-(4-hydroxy-4-isopentylpiperidine-1-carbonyl)phenyl)benzo[d]thiazole-4-
-sulfonamide
##STR00554##
[0624] .sup.1H NMR (CHLOROFORM-d) .delta.: 10.76 (s, 1H), 9.65 (s,
1H), 8.49 (d, J=8.1 Hz, 1H), 8.10 (d, J=7.5 Hz, 1H), 7.63 (t, J=7.9
Hz, 1H), 7.16 (d, J=8.3 Hz, 2H), 7.09 (d, J=8.4 Hz, 2H), 4.18 (s,
1H), 4.08 (s, 1H), 3.16 (m, 3H), 1.05-1.3 (m, 9H), 0.82 (d, J=6.6
Hz, 6H). LC-MS: m/z 488.6 (M+H).sup.+
Compound 393
General Procedure 7, Step C
N-(4-(4-(4,4-difluorobut-3-en-1-yl)-4-hydroxypiperidine-1-carbonyl)phenyl)-
benzo[d]thiazole-4-sulfonamide
##STR00555##
[0626] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 0.89 (d, J=6.98
Hz, 2H), 1.56 (d, J=8.60 Hz, 2H), 1.70 (br. s., 2H), 1.76 (br. s.,
2H), 2.02-2.13 (m, 2H), 4.09-4.23 (m, 1H), 7.11 (d, J=8.33 Hz, 2H),
7.19 (d, J=8.33 Hz, 2H), 7.54 (t, J=7.79 Hz, 1H), 8.02-8.14 (m,
2H), 8.19 (d, J=8.33 Hz, 1H), 9.30 (s, 1H). LC-MS: m/z 508.5
(M+H).sup.+
Compound 394
General Procedure 7, Step C
N-(4-(4-hydroxy-4-(4,4,4-trifluorobutyl)piperidine-1-carbonyl)phenyl)benzo-
[d]thiazole-4-sulfonamide
##STR00556##
[0628] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.19 (d,
J=8.3 Hz, 1H), 8.10 (d, J=6.7 Hz, 1H), 7.98 (s, 1H), 7.54 (t, J=7.8
Hz, 1H), 7.16-7.21 (m, J=8.6 Hz, 2H), 7.07-7.15 (m, J=8.3 Hz, 2H),
4.37 (br. s., 1H), 3.46 (br. s., 1H), 3.34 (br. s., 1H), 3.21 (br.
s., 1H), 2.10 (br. s., 3H), 1.54 (br. s., 4H), 1.33 (br. s., 4H).
LC-MS: m/z 528.8 (M+H).sup.+
Compound 395
General Procedure 7, Step C
N-(4-(4-hydroxy-4-(3,4,4-trifluorobut-3-enyl)piperidine-1-carbonyl)phenyl)-
benzo[d]thiazole-4-sulfonamide
##STR00557##
[0630] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.38 (br. s., 3H), 1.50
(br. s., 1H), 1.54-1.63 (m, 2H), 2.33 (br. s., 1H), 2.39 (br. s.,
1H), 2.98-3.14 (m, 2H), 3.14-3.28 (m, 2H), 4.07 (br. s., 1H), 7.10
(m, J=8.60 Hz, 2H), 7.17 (m, J=8.60 Hz, 2H), 7.64 (t, J=7.92 Hz,
1H), 8.11 (d, J=6.72 Hz, 1H), 8.50 (d, J=8.06 Hz, 1H), 9.65 (s,
1H), 10.76 (s, 1H). LC-MS: m/z 526.7 (M+H).sup.+
Compound 233
General Procedure 7, Step C
N-(4-(4-hydroxy-4-(3,3,3-trifluoropropyl)piperidine-1-carbonyl)phenyl)benz-
o[d]thiazole-4-sulfonamide
##STR00558##
[0632] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.20 (d,
J=7.3 Hz, 1H), 8.10 (d, J=7.8 Hz, 1H), 7.94 (s, 1H), 7.55 (t, J=7.8
Hz, 1H), 7.20 (d, J=8.6 Hz, 2H), 7.12 (d, J=8.6 Hz, 2H), 4.33 (s,
1H), 3.73 (s, 1H), 3.53-3.44 (m, 1H), 3.19 (s, 2H), 2.29-2.18 (m,
2H), 1.55-1.50 (m, 2H), 1.47 (d, J=6.7 Hz, 2H), 0.9 (t, J=6.8 Hz,
2H). LC-MS: m/z 514.6 (M+H).sup.+
Compound 212
General Procedure 7, Step C
N-(4-(4-(cyclobutylmethyl)-4-hydroxypiperidine-1-carbonyl)phenyl)benzo[d]t-
hiazole-4-sulfonamide
##STR00559##
[0634] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.32 (s, 1H), 8.24-8.15
(m, 1H), 8.13-8.07 (m, 1H), 7.96 (s, 1H), 7.55 (t, J=7.8 Hz, 1H),
7.19 (d, J=8.5 Hz, 2H), 7.12 (d, J=8.5 Hz, 2H), 4.34 (s, 1H), 3.70
(dd, J=10.2, 6.4 Hz, 2H), 3.16 (dd, J=7.4, 4.2 Hz, 2H), 2.55-2.43
(m, 1H), 1.62 (s, 1H), 1.43-1.45 (m, 5H), 1.40-1.36 (m, 2H),
1.26-1.31 (m, 4H). LC-MS: m/z 486.6 (M+H).sup.+
General Procedure 8
##STR00560##
[0635] Step A:
[0636] To a solution of the corresponding methyl 4-aminobenzoate
(8A, 2.5 mmol) in 20 mL of DCM was added pyridine (600 mg, 7.5
mmol) and benzo[c][1,2,5]thiadiazole-4-sulfonyl chloride (585 mg,
2.5 mmol). The resulting mixture was stirred at 50.degree. C.
overnight. After removal of DCM, the residue was partitioned
between water and EtOAc. The organic layer was washed with 2 N HCl,
water and brine, dried over Na.sub.2SO.sub.4 and concentrated to
give crude product 8B, which was confirmed by LCMS, and used in the
next reaction without further purification.
Step B:
[0637] To a solution of the corresponding compound 8B (1.0 mmol) in
AcOH/H.sub.2O (8 mL/3 mL) at 70.degree. C. was added zinc powder
(975 mg, 15 mmol) and the resulting suspension was stirred at
70.degree. C. for 1 h. The solid was filtered off and washed with
EtOAc. The filtrate was partitioned between satd. NaHCO.sub.3 and
EtOAc. The organic layer was separated and washed with water and
brine, dried over anhydrous Na.sub.2SO.sub.4 and concentrated to
give crude product 8C, which was confirmed by LCMS, and used in the
next reaction without further purification.
Step C:
[0638] To a solution of the corresponding compound 8C (0.9 mmol) in
ethanol/water (30 mL/4 mL) was added glyoxal sodium bisulfite
hydrate (975 mg, 15 mmol) and the resulting suspension was stirred
at 100.degree. C. overnight. The solvent was removed in vacuo and
the residue was partitioned between water and EtOAc. The organic
layer was separated and washed with water and brine, dried over
Na.sub.2SO.sub.4 and concentrated, purified by flash column to give
title product 8D, which was confirmed by LCMS.
Step D:
[0639] To a solution of the corresponding compound 8D (0.2 mmol) in
EtOH/H.sub.2O (10 mL/3 mL) was added LiOH.H.sub.2O (37 mg, 0.9
mmol) and the resulting suspension was stirred at 70.degree. C.
overnight. The solvent was concentrated and the residue was
partitioned between aqueous 2 N HCl and EtOAc. The organic layer
was separated and washed with water and brine, dried over
Na.sub.2SO.sub.4 and concentrated to give the desired crude product
8E, which was confirmed by LCMS, and used in subsequent reaction
without further purification.
Step E:
[0640] To a solution of compound 8E (0.2 mmol) and in DCM (10 mL)
was added HBTU (91 mg, 0.24 mmol) and stirred at r.t. for 20 min,
then the corresponding compound 8F (0.2 mmol) and DIPEA (0.6 mmol)
were added. After stirring for 30 mins, the reaction was
partitioned between satd. Na.sub.2CO.sub.3 solution and DCM. The
organic layer was separated and washed with water and brine, dried
over Na.sub.2SO.sub.4 and concentrated, and then purified by a
standard method to give title product 8G.
Compound 251
General Procedure 8, Step E
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-2-fluorophenyl)qu-
inoxaline-5-sulfonamide
##STR00561##
[0642] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.06 (s, 2H), 8.46 (d,
J=7.3 Hz, 1H), 8.33-8.40 (m, 2H), 7.83-7.88 (m, 1H), 7.75 (t, J=8.1
Hz, 1H), 7.51 (d, J=7.5 Hz, 1H), 7.39 (d, J=7.5 Hz, 1H), 7.29 (br.
s., 1H), 7.25 (m, 1H), 7.11 (d, J=8.3 Hz, 1H), 6.98 (d, J=8.9 Hz,
1H), 4.58 (br. s., 1H), 3.58 (br. s., 2H), 3.31 (br. s., 1H), 2.36
(br. s., 2H), 2.18 (br. s., 2H). LC-MS: m/z 542.0 (M+H).sup.+
Compound 262
General Procedure 8, Step E
N-(4-(4-(2,3-difluorophenyl)-4-hydroxypiperidine-1-carbonyl)-2-fluoropheny-
l)quinoxaline-5-sulfonamide
##STR00562##
[0644] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.06 (s, 2H), 8.47 (d,
J=8.5 Hz, 1H), 8.34-8.40 (m, 2H), 7.83-7.89 (m, 1H), 7.76 (t, J=8.2
Hz, 1H), 7.24 (t, J=7.0 Hz, 1H), 7.08-7.16 (m, 3H), 6.99 (d, J=10.5
Hz, 1H), 4.59 (br. s., 1H), 3.57 (br. s., 2H), 3.28 (br. s., 1H),
2.25 (br. s., 2H), 2.13 (br. s., 1H), 1.88 (br. s., 2H). LC-MS: m/z
543.5 (M+H).sup.+
Compound 160
General Procedure 8, Step E
N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)quinoxaline-5-sulfo-
namide
##STR00563##
[0646] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.07 (s, 2H), 8.45 (dd,
J=7.3, 1.3 Hz, 1H), 8.35 (dd, J=8.5, 1.2 Hz, 1H), 8.03 (s, 1H),
7.82-7.88 (m, 1H), 7.16-7.21 (m, J=8.6 Hz, 2H), 7.06-7.11 (m, J=8.3
Hz, 2H), 4.33 (br. s., 1H), 3.35 (br. s., 2H), 3.19 (br. s., 1H),
1.82 (dt, J=12.8, 6.3 Hz, 1H), 1.50 (br. s., 4H), 1.40 (d, J=5.9
Hz, 2H), 0.97 (d, J=6.7 Hz, 6H). LC-MS: m/z 469.5 (M+H).sup.+
Compound 243
General Procedure 8, Step E
N-(4-(4-hydroxy-4-phenylpiperidine-1-carbonyl)phenyl)quinoxaline-5-sulfona-
mide
##STR00564##
[0648] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.03-9.08 (m, 2H), 8.45
(dd, J=7.3, 1.5 Hz, 1H), 8.34 (dd, J=8.5, 1.5 Hz, 1H), 8.14 (s,
1H), 7.84 (dd, J=8.4, 7.5 Hz, 1H), 7.41-7.46 (m, 2H), 7.33-7.38 (m,
2H), 7.29-7.31 (m, 1H), 7.25-7.28 (m, 1H), 7.19-7.23 (m, J=8.5 Hz,
2H), 7.07-7.11 (m, J=8.5 Hz, 2H), 4.54 (br. s., 1H), 3.53 (br. s.,
2H), 3.20-3.36 (m, 1H), 1.93 (br. s., 2H), 1.84 (br. s., 2H).
LC-MS: m/z 488.6 (M+H).sup.+
Compound 162
General Procedure 8, Step E
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoxaline-
-5-sulfonamide
##STR00565##
[0650] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.05-9.10 (m, 2H), 8.45
(dd, J=7.5, 1.3 Hz, 1H), 8.36 (dd, J=8.6, 1.3 Hz, 1H), 8.02-8.09
(m, 1H), 7.85 (dd, J=8.3, 7.5 Hz, 1H), 7.52 (dd, J=7.8, 1.9 Hz,
1H), 7.38 (dd, J=7.8, 1.6 Hz, 1H), 7.25-7.28 (m, 1H), 7.24 (s, 1H),
7.21-7.23 (m, 1H), 7.10 (d, J=8.6 Hz, 2H), 4.60 (d, J=10.7 Hz, 1H),
3.56 (br. s., 2H), 3.50 (s, 1H), 1.86-2.09 (m, 2H), 1.72 (br. s.,
2H). LC-MS: m/z 523.6 (M+H).sup.+
Compound 119
General Procedure 8, Step E
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)-2-methylphenyl)qu-
inoxaline-5-sulfonamide
##STR00566##
[0652] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.02-9.07 (m, 2H), 8.51
(d, J=7.3 Hz, 1H), 8.38 (d, J=8.3 Hz, 1H), 7.89 (t, J=7.9 Hz, 1H),
7.76 (s, 1H), 7.50-7.54 (m, 1H), 7.39 (dd, J=7.5, 1.3 Hz, 1H),
7.29-7.32 (m, 1H), 7.22-7.28 (m, 2H), 7.16 (s, 1H), 7.06 (d, J=8.1
Hz, 1H), 4.60 (br. s., 1H), 3.61 (br. s., 1H), 3.55 (br. s., 1H),
3.31 (d, J=11.3 Hz, 1H), 2.35 (d, J=7.5 Hz, 1H), 2.25 (s, 3H), 2.20
(d, J=14.8 Hz, 1H), 2.01-2.12 (m, 1H), 1.97 (br. s., 1H). LC-MS:
m/z 537.6 (M+H).sup.+
Compound 175
General Procedure 8, Step E
N-(4-(4-(2,3-difluorophenyl)-4-hydroxypiperidine-1-carbonyl)-2-methylpheny-
l)quinoxaline-5-sulfonamide
##STR00567##
[0654] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.05 (dd, J=9.2, 1.6 Hz,
2H), 8.51 (dd, J=7.3, 1.3 Hz, 1H), 8.38 (dd, J=8.4, 1.1 Hz, 1H),
7.89 (dd, J=8.3, 7.5 Hz, 1H), 7.76 (s, 1H), 7.22-7.27 (m, 1H),
7.03-7.17 (m, 4H), 4.58 (br. s., 1H), 3.60 (br. s., 1H), 3.39-3.57
(m, 1H), 3.24 (br. s., 1H), 2.05-2.19 (m, 1H), 1.83 (br. s., 1H),
1.75 (br. s., 2H). LC-MS: m/z 538.6 (M+H).sup.+
Compound 213
General Procedure 8, Step E
N-(3-(difluoromethoxy)-4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl-
)quinoxaline-5-sulfonamide
##STR00568##
[0656] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.07 (d, J=5.4 Hz, 2H),
8.48 (d, J=7.3 Hz, 1H), 8.38 (d, J=8.6 Hz, 1H), 8.04 (s, 1H),
7.85-7.93 (m, 1H), 6.99-6.90 (m, 3H), 6.36 (t, J=73.2 Hz, 1H), 4.39
(br. s., 1H), 3.25-3.16 (m, 3H), 1.82 (m, 1H), 1.63 (m., 5H), 0.98
(d, J=6.7 Hz, 6H). LC-MS: m/z 535.8 (M+H).sup.+
Compound 114
General Procedure 8, Step E
N-(4-(4-hydroxy-4-(2-(trifluoromethyl)benzyl)piperidine-1-carbonyl)phenyl)-
quinoxaline-5-sulfonamide
##STR00569##
[0658] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.60 (br. s., 4H), 3.01
(s, 2H), 3.12 (br. s., 1H), 3.30 (br. s., 1H), 3.48 (br. s., 1H),
4.47 (br. s., 1H), 7.08 (m, J=7.79 Hz, 2H), 7.20 (m, J=8.06 Hz,
2H), 7.39 (dd, J=8.33, 3.76 Hz, 1H), 7.47-7.53 (m, 2H), 7.69 (d,
J=7.79 Hz, 1H), 7.82-7.89 (m, 1H), 7.99 (s, 1H), 8.36 (dd, J=8.46,
1.21 Hz, 1H), 8.45 (dd, J=7.39, 1.21 Hz, 1H), 9.08 (s, 2H). LC-MS:
m/z 571.7 (M+H).sup.+
Compound 221
General Procedure 8, Step E
N-(4-(4-hydroxy-4-(3,3,3-trifluoropropyl)piperidine-1-carbonyl)phenyl)quin-
oxaline-5-sulfonamide
##STR00570##
[0660] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.12 (d, J=1.9 Hz, 1H),
9.03 (d, J=1.9 Hz, 1H), 8.50 (dd, J=7.3, 1.3 Hz, 1H), 8.32 (dd,
J=8.3, 1.3 Hz, 1H), 7.91 (dd, J=8.3, 7.5 Hz, 1H), 7.15-7.26 (m,
4H), 3.18 (br. s., 1H), 2.25 (td, J=11.1, 5.9 Hz, 2H), 1.62-1.78
(m, 3H), 1.56 (br. s., 1H), 1.46 (br. s., 2H), 1.31 (d, J=2.1 Hz,
1H). LC-MS: m/z 509.62 (M+H).sup.+
Compound 130
General Procedure 8, Step E
N-(4-(4-hydroxy-4-neopentylpiperidine-1-carbonyl)phenyl)quinoxaline-5-sulf-
onamide
##STR00571##
[0662] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.08 (s, 2H), 8.45 (dd,
J=7.4, 1.2 Hz, 1H), 8.36 (dd, J=8.6, 1.3 Hz, 1H), 8.00 (s, 1H),
7.85 (dd, J=8.3, 7.5 Hz, 1H), 7.15-7.22 (m, J=8.3 Hz, 2H),
7.03-7.11 (m, J=8.6 Hz, 2H), 4.36 (br. s., 1H), 3.40 (br. s., 2H),
3.17 (dd, J=12.6, 5.9 Hz, 2H), 1.62 (br. s., 4H), 1.49 (s, 2H),
1.05 (s, 9H). LC-MS: m/z 483.6 (M+H).sup.+
Compound 188
General Procedure 8, Step E
N-(4-(4-(cyclopropylmethyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoxal-
ine-5-sulfonamide
##STR00572##
[0664] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.07 (q, J=1.7 Hz, 2H),
8.45 (dd, J=7.3, 1.3 Hz, 1H), 8.35 (dd, J=8.6, 1.3 Hz, 1H), 8.06
(s, 1H), 7.85 (dd, J=8.5, 7.4 Hz, 1H), 7.15-7.22 (m, J=8.3 Hz, 2H),
7.04-7.13 (m, J=8.3 Hz, 2H), 4.37 (br. s., 1H), 3.49 (br. s., 1H),
3.27 (br. s., 3H), 1.76 (br. s., 1H), 1.51-1.66 (m, 3H), 1.41 (d,
J=6.4 Hz, 2H), 0.65-0.80 (m, 1H), 0.46-0.58 (m, 2H), 0.05-0.13 (m,
2H). LC-MS: m/z 467.6 (M+H).sup.+
Compound 396
General Procedure 8, Step E
N-(4-(4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoxal-
ine-5-sulfonamide
##STR00573##
[0666] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.08 (s, 2H), 8.45 (dd,
J=7.3, 1.1 Hz, 1H), 8.36 (dd, J=8.5, 1.2 Hz, 1H), 8.03 (s, 1H),
7.86 (dd, J=8.3, 7.5 Hz, 1H), 7.14-7.24 (m, J=8.1 Hz, 2H),
7.04-7.13 (m, J=8.1 Hz, 2H), 4.33 (br. s., 1H), 3.51 (s, 1H), 3.28
(br. s., 3H), 1.88-2.02 (m, 2H), 1.56-1.69 (m, 9H). LC-MS: m/z
505.6 (M+H).sup.+
Compound 397
General Procedure 8, Step E
N-(4-(4-hydroxy-4-(4,4,4-trifluorobutyl)piperidine-1-carbonyl)phenyl)quino-
xaline-5-sulfonamide
##STR00574##
[0668] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.08 (s, 2H), 8.45 (dd,
J=7.3, 1.3 Hz, 1H), 8.36 (dd, J=8.6, 1.3 Hz, 1H), 8.04 (s, 1H),
7.82-7.89 (m, 1H), 7.16-7.22 (m, J=8.6 Hz, 2H), 7.06-7.12 (m, J=8.6
Hz, 2H), 4.35 (br. s., 1H), 3.43 (br. s., 1H), 3.34 (br. s., 1H),
3.17 (br. s., 1H), 2.04-2.14 (m, 2H), 1.48-1.58 (m, 4H), 1.32 (br.
s., 2H), 1.24 (br. s., 2H). LC-MS: m/z 523.7 (M+H).sup.+
Compound 398
General Procedure 8, Step E
N-(4-(4-hydroxy-4-(3,4,4-trifluorobut-3-enyl)piperidine-1-carbonyl)phenyl)-
quinoxaline-5-sulfonamide
##STR00575##
[0670] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.44 (br. s., 1H),
1.49-1.65 (m, 3H), 2.31-2.45 (m, 2H), 2.57 (d, J=6.45 Hz, 1H),
3.10-3.38 (m, 3H), 7.08 (m, J=8.60 Hz, 2H), 7.18 (m, J=8.60 Hz,
2H), 7.84 (dd, J=8.33, 7.52 Hz, 1H), 8.34 (dd, J=8.46, 1.21 Hz,
1H), 8.45 (dd, J=7.39, 1.21 Hz, 1H), 9.03-9.10 (m, 2H). LC-MS: m/z
521.7 (M+H).sup.+
Compound 399
General Procedure 8, Step E
N-(4-(4-(4,4-difluorobut-3-en-1-yl)-4-hydroxypiperidine-1-carbonyl)phenyl)-
quinoxaline-5-sulfonamide
##STR00576##
[0672] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 0.79-0.93 (m,
2H), 1.51-1.57 (m, 3H), 1.59-1.74 (m, 4H), 1.98-2.17 (m, 2H), 3.33
(br. s., 2H), 3.50 (s, 1H), 4.08-4.24 (m, 1H), 7.08 (m, J=8.33 Hz,
2H), 7.19 (m, J=8.33 Hz, 2H), 7.85 (dd, J=8.46, 7.39 Hz, 1H), 8.04
(s, 1H), 8.36 (dd, J=8.46, 1.21 Hz, 1H), 8.45 (dd, J=7.39, 1.21 Hz,
1H), 9.08 (s, 2H). LC-MS: m/z 503.5 (M+H).sup.+
Compound 400
General Procedure 8, Step E
N-(4-(4-(4,4-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoxal-
ine-5-sulfonamide
##STR00577##
[0674] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 1.25-1.29 (m,
2H), 1.51-1.69 (m, 7H), 1.78-1.87 (m, 2H), 3.06-3.24 (m, 1H),
3.24-3.36 (m, 1H), 3.41 (br. s., 1H), 4.32 (br. s., 1H), 5.81 (t,
J=4.30 Hz, 1H), 7.08 (m, J=8.60 Hz, 2H), 7.18 (m, J=8.33 Hz, 2H),
7.84 (dd, J=8.33, 7.52 Hz, 1H), 8.12 (s, 1H), 8.34 (dd, J=8.46,
1.21 Hz, 1H), 8.45 (dd, J=7.39, 1.21 Hz, 1H), 8.98-9.14 (m, 2H).
LC-MS: m/z 505.5 (M+H).sup.+
General Procedure 9
##STR00578##
[0675] Step A: tert-butyl 1-oxa-6-azaspiro[2.5]octane-6-carboxylate
(9B)
##STR00579##
[0677] To a solution of tert-butyl 4-oxopiperidine-1-carboxylate (5
g, 25 mmol) in BuOH (20 mL) was added potassium tert-butoxide
(4.125 g, 18.75 mmol). The mixture was stirred at 50.degree. C. for
1 h. Then trimethyl sulfoxonium iodide (11 g, 50 mmol) was added to
the mixture, and the resulting reaction mixture was stirred at
50.degree. C. overnight. When TLC showed that s.m. was consumed,
the mixture was cooled and filtered. The filtrate was concentrated
to give the crude product which was used in the next step without
further purification.
[0678] .sup.1H NMR (CHLOROFORM-d) .delta.: 3.75 (d, J=13.8 Hz, 2H),
3.45 (dd, J=13.2, 9.4, 3.8 Hz, 2H), 2.72 (s, 2H), 2.01-2.07 (m,
2H), 1.78-1.86 (m, 2H), 1.50 (s, 9H)
Step B: tert-butyl
4-(ethoxymethyl)-4-hydroxypiperidine-1-carboxylate (9C)
##STR00580##
[0680] To anhydrous EtOH (20 mL) was added slowly NaH (124 mg, 52
mmol) at 0.degree. C., and after the addition was complete the
mixture was stirred for 1.5 h. Then tert-butyl
1-oxa-6-azaspiro[2.5]octane-6-carboxylate (9B, 45 mmol) was added,
and the resulting mixture was stirred at 50.degree. C. for 1 h,
when TLC showed that s.m. was consumed. Then the mixture was
neutralized with 1N aq. HCl, and concentrated. The residue was
purified by prep-TLC to give the desired product 9C as colorless
oil (600 mg) .sup.1H NMR (METHANOL-d.sup.4) .delta.: 3.78 (d,
J=12.6 Hz, 2H), 3.51 (q, J=7.0 Hz, 2H), 3.22-3.29 (m, 2H), 3.15
(br. s., 2H), 1.48-1.60 (m, 4H), 1.43 (s, 9H), 1.18 (t, J=7.0 Hz,
3H).
Step C: 4-(ethoxymethyl)piperidin-4-ol (9D)
##STR00581##
[0682] To a solution of tert-butyl
4-(ethoxymethyl)-4-hydroxypiperidine-1-carboxylate (9C, 1 eq.) in
DCM was added TFA (10 eq.). The mixture was stirred at r.t. for 0.5
hr, when TLC showed that s.m. was consumed. The mixture was
concentrated to give the crude product which was used to the next
step without further purification. LC-MS: m/z 160.2 (M+H).sup.+
General Procedure 10
##STR00582##
[0683] Step A:
[0684] To a solution of the corresponding bromobenzene (4.7 mmol)
in 30 mL of anhydrous THF was added dropwise n-BuLi (7.04 mmol) at
-78.degree. C. under N.sub.2. After stirring for 1 h at -78.degree.
C., tert-butyl 1-oxa-6-azaspiro[2.5]octane-6-carboxylate (7.04
mmol) in THF (5 mL) was added drop wise to the above obtained
solution at -78.degree. C. under N.sub.2. The resulting mixture was
stirred at -78.degree. C. under N.sub.2 for 2 h, then allowed to
warm to r.t. and stirred overnight. The reaction mixture was cooled
to -78.degree. C. and quenched by satd. NH.sub.4Cl solution, then
the resulting mixture was extracted with EtOAc (50 mL, 30 mL). The
combined organic phase was washed with brine, dried over anhydrous
Na.sub.2SO.sub.4 and concentrated in vacuo to give the title
compound 10B.
Step B:
[0685] A solution of compound 10B (1.62 mmol) in 13 mL of 6N HCl in
dioxane was stirred at room temperature for 30 min. The reaction
mixture was concentrated in vacuo to give the title product 10C as
a yellow liquid which was used in the next step directly.
General Procedure 11
##STR00583##
[0686] Step A: tert-butyl 4-allyl-4-hydroxypiperidine-1-carboxylate
(11B)
##STR00584##
[0688] To a solution of tert-butyl 4-oxopiperidine-1-carboxylate
(10 g. 50.2 mmol), allyl bromide (10.8 mL, 124 mmol) in THF (10
mL), and saturated ammonium chloride solution (50 mL) was added Zn
dust (6.5 g, 100 mmol) portionwise below 10.degree. C. After
addition was complete, the reaction mixture was stirred overnight,
when TLC indicated consumption of s.m. The reaction mixture was
diluted with water (50 mL) and acidified with several drops of 10%
H.sub.2SO.sub.4 to pH=6. The reaction mixture was extracted with
EtOAc (3.times.200 mL). The organic layers were combined and washed
with a saturated solution of NaHCO.sub.3, brine and evaporated, to
give the crude product which was purified by chromatography to give
title compound 11B as colorless oil.
[0689] .sup.1H NMR (CHLOROFORM-d) .delta.: 5.77-5.92 (m, 1H),
5.05-5.21 (m, 2H), 3.76 (br. s., 2H), 3.05-3.22 (m, 2H), 2.21 (d,
J=7.6 Hz, 2H), 2.01 (br. s., 1H), 1.50 (dd, J=7.2, 4.0 Hz, 3H),
1.47 (s, 1H), 1.43 (s, 9H).
Step B: tert-butyl
4-((2,2-difluorocyclopropyl)methyl)-4-hydroxypiperidine-1-carboxylate
(11C)
##STR00585##
[0691] To a sealed tube was added tert-butyl
4-allyl-4-hydroxypiperidine-1-carboxylate 11B (280 mg, 1.16 mmol),
Nat (112 mg, 0.74 mmol), trimethyl(trifluoromethyl)silane (0.6 mL)
and THF (10 mL). The tube was sealed, and then the mixture was
stirred at 80.degree. C. overnight. The resulting mixture was
diluted with DCM, filtered, and the filtrate was concentrated in
vacuo to give the crude product 11C which was used for next step
without further purification. LC-MS: m/z 292.3 (M+H).sup.+
Step C: 4-((2,2-difluorocyclopropyl)methyl)piperidin-4-ol (11D)
##STR00586##
[0693] To a solution of compound 11C (1 eq.) in DCM, was added TFA
(10 eq.), the reaction mixture was stirred at room temperature for
about 2 hours, when TLC detected no s.m. The reaction mixture was
concentrated to afford the desired product 11D. The crude product
was used for the next step directly without further purification.
LC-MS: m/z 192.3 (M+H).sup.+
General Procedure 12
##STR00587##
[0694] Step A: tert-butyl
4-hydroxy-4-(2-methylallyl)piperidine-1-carboxylate (12B)
##STR00588##
[0696] t-butyl-4-oxopiperidine-1-carboxylate (10 g, 0.05 mol) was
dissolved in 3-bromo-2-methylprop-1-ene (16.9 g, 0.126 mol), THF
(100 mL) and saturated ammonium chloride solution (500 mL). The
reaction was cooled to 10.degree. C. and zinc dust (6.6 g, 0.01
mol) was added portionwise. After addition, the reaction mixture
was stirred overnight, when TLC (heptane/EtOAc 7:1) indicated that
the reaction was complete. The reaction mixture was then diluted
with water and acidified with 10% H.sub.2SO.sub.4 to pH 6. The
reaction mixture was extracted with ethyl acetate (3.times.50 mL).
The organic layers were combined and washed with saturated solution
of NaHCO.sub.3, brine and evaporated to give tert-butyl
4-hydroxy-4-(2-methylallyl)piperidine-1-carboxylate (12.28 g).
.sup.1H NMR (CHLOROFORM-d) .delta.: 4.94-5.04 (m, 1H), 4.80 (s,
1H), 3.85 (dt, J=13.0, 3.4 Hz, 2H), 3.08-3.26 (m, 2H), 2.21 (s,
2H), 1.86 (s, 3H), 1.52-1.60 (m, 4H), 1.43-1.50 (m, 9H).
Step B: tert-butyl
4-hydroxy-4-((1-methylcyclopropyl)methyl)piperidine-1-carboxylate
(12C)
##STR00589##
[0698] To CH.sub.2Cl.sub.2 (20 mL) at 0.degree. C. was added 1M
solution of diethylzinc in hexane (11.75 mL, 11.75 mmol), followed
by dropwise addition of a solution of trifluoroacetic acid (0.6 mL,
7.83 mmol) in CH.sub.2Cl.sub.2 (8 mL). After stirring for 15 min, a
solution of diiodomethane (0.65 mL, 7.83 mmol) in CH.sub.2Cl.sub.2
(8 mL) was added. The mixture was stirred for 15 min and a clear
solution resulted. tert-Butyl
4-hydroxy-4-(2-methylallyl)piperidine-1-carboxylate (12B) (1 g,
3.92 mmol) was added and the mixture was stirred at room
temperature overnight. After quenching with 0.1 M aqueous HCl (50
mL), the CH.sub.2Cl.sub.2 layer was separated, washed with brine,
dried (Na.sub.2SO.sub.4) and concentrated to give the crude
product, which was used directly for the next step without
purification.
Step C: 4((1-methylcyclopropyl)methyl)piperidin-4-ol (12D)
##STR00590##
[0700] To a solution of compound 12C (1 eq.) in DCM, was added TFA
(10 eq.), the reaction mixture was stirred at room temperature for
about 2 hours, when TLC detected no s.m. The reaction mixture was
concentrated to afford the desired product 12D. The crude product
was used for the next step directly without further purification.
LC-MS: m/z 170.3 (M+H).sup.+
General Procedure 13
##STR00591##
[0701] Step A: tert-butyl
4-hydroxy-4-(3-hydroxypropyl)piperidine-1-carboxylate (13B)
##STR00592##
[0703] A mixture of BH.sub.3 in THF (21 mL, 21.0 mmol) was added
slowly to a mixture of tert-butyl
4-allyl-4-hydroxypiperidine-1-carboxylate (500 mg, 2.07 mmol) and
THF (5 mL) at 0.degree. C. under nitrogen, and then stirred for 30
min. The resulting mixture was allowed to warm to room temperature
and stirred overnight. The mixture was cooled to 0.degree. C. and
3N sodium hydroxide (1 mL) was added followed by the addition of
30% hydrogen peroxide (1 mL). The resulting mixture was allowed to
warm to room temperature and stirred for 2.5 hours. The mixture was
then treated with water (10 mL) and extracted with EA (3.times.20
mL). The combined organic extracts were dried over Na.sub.2SO.sub.4
and the solvent was removed in vacuo. The residue was purified by
column chromatography on silica gel with (30% EtOAc/PE) to give
tert-butyl 4-hydroxy-4-(3-hydroxypropyl) piperidine-1-carboxylate
13B (629 mg) as a colorless oil. .sup.1H NMR (CHLOROFORM-d)
.delta.: 3.65 (t, J=5.7 Hz, 4H), 3.36 (br. s., 2H), 3.16 (br. s.,
2H), 1.63-1.71 (m, 2H), 1.53-1.62 (m, 4H), 1.41-1.48 (m, 9H).
Step B: 4-(3-hydroxypropyl)piperidin-4-ol (13C)
##STR00593##
[0705] To a solution of compound 2 (1 eq.) in DCM, was added TFA
(10 eq.), the reaction mixture was stirred at room temperature for
about 2 hours, when TLC detected no s.m. The reaction mixture was
concentrated to afford the desired product 3. The crude product was
used for the next step directly without further purification.
LC-MS: m/z 160.2 (M+H).sup.+
General Procedure 14
##STR00594##
[0706] Step A: tert-butyl
4-(cyclopropylmethyl)-4-hydroxypiperidine-1-carboxylate (14B)
##STR00595##
[0708] To a suspension of 4,4'-di-tert-butylbiphenyl (DTBB, 30.33
mg, 0.114 mmol) and Li (56.7 mg, 8.09 mmol) in 50 mL of anhydrous
THF was added dropwise a solution of (bromomethyl)cyclopropane
(307.9 mg, 2.28 mmol) and tert-butyl 4-oxopiperidine-1-carboxylate
(500 mg, 2.5 mmol) in anhydrous THF (5 mL) at -78.degree. C. under
N.sub.2. The resulting mixture was stirred at -78.degree. C. under
N.sub.2 for 8 h. The reaction mixture was quenched by satd.
NH.sub.4Cl solution at -78.degree. C. The resulting mixture was
extracted with EtOAc (50 mL.times.2). The combined organic phase
was washed with brine, dried over anhy. Na.sub.2SO.sub.4 and
concentrated in vacuo. Column chromatography (15% PE/EtOAc)
afforded 262.5 mg of title compound as a colorless oil. .sup.1H NMR
(CHLOROFORM-d) .delta.: 3.90-3.78 (m, 2H), 3.25-3.12 (m, 2H), 1.60
(dd, J=9.4, 4.3 Hz, 4H), 1.48 (s, 9H), 1.42 (d, J=6.9 Hz, 2H),
0.82-0.70 (m, 1H), 0.57-0.47 (m, 2H), 0.16-0.06 (m, 2H).
Step B: 4-(cyclopropylmethyl)piperidin-4-ol (14C)
##STR00596##
[0710] To a solution of compound 14B (1 eq.) in DCM, was added TFA
(10 eq.), the reaction mixture was stirred at room temperature for
about 2 hours, when LCMS detected no s.m. The reaction mixture was
concentrated to afford the desired product 14C. The crude product
was used for the next step directly without further purification.
LC-MS: m/z 156.2 (M+H).sup.+
General Procedure 15
##STR00597##
[0711] Step A:
[0712] Sodium (90 mg, 3.9 mmol) was added (in small pieces) into
2,2,2-trifluoroethanol (2 mL) at room temperature, then the mixture
was stirred at room temperature until Na was totally consumed, and
the resulting mixture was then added dropwise into a solution of
tert-butyl 1-oxa-6-azaspiro[2.5]octane-6-carboxylate (500 mg, 2.35
mmol) in 10 mL of anhydrous THF at room temperature. After the
addition was complete, the mixture was stirred at 60.degree. C.
overnight when TLC (petroleum ether: ethyl acetate=2:1) (I.sub.2
stained) indicated formation of a new spot, and consumption of
tert-butyl 1-oxa-6-azaspiro[2.5]octane-6-carboxylate. The resulting
mixture was then cooled to room temperature, H.sub.2O was added to
quench the reaction, and the mixture was extracted with ethyl
acetate. The organic layer was dried over anhydrous
Na.sub.2SO.sub.4, and concentrated to give crude title compound
which was used in the next step without further purification.
General Procedure 16
##STR00598##
[0713] Step A:
tert-butyl-4-(but-3-en-1-yl)-4-hydroxypiperidine-1-carboxylate
(16B)
##STR00599##
[0715] To a mixture of 4-bromobut-1-ene (10.9 g, 0.08 mol) and
magnesium turnings (4.8 g, 0.2 mol) in dry tetrahydrofuran (80 mL)
was added a crystal of iodine and the mixture was stirred at room
temperature until complete reaction had occurred. To this mixture
was added tert-butyl 4-oxopiperidine-1-carboxylate (7.7 g, 0.039
mol) in tetrahydrofuran (20 mL) at 0.degree. C. After 1 h at
0.degree. C., and 3 h at room temperature the reaction mixture was
diluted with ammonium chloride solution and extracted with ethyl
acetate. After drying over Na.sub.2SO.sub.4, the solvent was
removed in vacuo and the residue was purified via flash
chromatography with 25% ethyl acetate/hexane to afford the title
compound 16B (3.63 g) as an oil. .sup.1H NMR (CHLOROFORM-d) .delta.
5.84 (d, J=6.7 Hz, 1H), 4.89-5.11 (m, 2H), 3.16 (br. s., 2H), 2.16
(d, J=9.4 Hz, 2H), 1.48-1.66 (m, 6H), 1.45 (s, 9H).
Step B:
tert-butyl-4-acetoxy-4-(but-3-en-1-yl)piperidine-1-carboxylate
(16C)
##STR00600##
[0717] A solution of
tert-butyl-4-(but-3-en-1-yl)-4-hydroxypiperidine-1-carboxylate (3.7
g, 14.51 mmol) in dichloromethane (20 mL) was treated with
dimethylaminopyridine (1.8 g, 14.51 mmol), acetic anhydride (4.1
mL, 43.53 mmol) and triethylamine (6.1 mL, 43.53 mmol), stirred
overnight at 20.degree. C. The solvent was removed under reduced
pressure and the residue was partitioned between water and ethyl
acetate. The aqueous layer was extracted twice with ethyl acetate.
Combined organic extracts were washed with water, dried
(Na.sub.2SO.sub.4) and filtered. The filtrate was concentrated
under reduced pressure, purified by flash chromatography to provide
the title compound 16C as colorless oil (3.4 g).
Step C: tert-butyl-4-acetoxy-4-(3-oxobutyl)piperidine-1-carboxylate
(16D)
##STR00601##
[0719] To a solution of
tert-butyl-4-acetoxy-4-(but-3-en-1-yl)piperidine-1-carboxylate (1
g, 3.36 mmol) in DMF (6 mL) and H.sub.2O (2 mL) was added CuCl
(0.77 g, 7.73 mmol) and PdCl.sub.2 (0.16 g, 0.91 mmol) and the
resulting suspension was stirred under an oxygen atmosphere at room
temperature for 24 h. The insoluble materials were removed by
filtration, and washed with ethyl acetate. The filtrate was dried
over anhydrous Na.sub.2SO.sub.4, filtered, and concentrated under
reduced pressure. The residue was purified by flash chromatography
on silica gel to give 16D (540 mg) as a colorless oil. .sup.1H NMR
(CHLOROFORM-d) .delta.: 3.84 (br. s., 2H), 2.97 (t, J=12.1 Hz, 2H),
2.38-2.47 (m, 2H), 2.17-2.24 (m, 2H), 2.15 (s, 3H), 2.04 (s, 3H),
1.39-1.51 (m, 9H).
Step D:
tert-butyl-4-acetoxy-4-(3,3-difluorobutyl)piperidine-1-carboxylate
(16E)
##STR00602##
[0721] To a solution of
tert-butyl-4-acetoxy-4-(3-oxobutyl)piperidine-1-carboxylate (2.66
g, 8.5 mmol,) in CH.sub.2Cl.sub.2 (15 mL) was added DAST (4.5 mL,
34 mmol) and the resulting mixture was stirred for 24 h room
temperature. A saturated aqueous NaHCO.sub.3 solution was added and
the resulting biphasic mixture was stirred vigorously for 15 min.
The two layers were separated and the aqueous phase was extracted
with CH.sub.2Cl.sub.2. The combined organic phase were dried over
Na.sub.2SO.sub.4 and concentrated in vacuo. The residue was
purified by flash chromatography on silica gel to give the title
compound 16E (1.27 g).
Step E:
tert-butyl-4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carboxylate
(16F)
##STR00603##
[0723] To a solution of
tert-butyl-4-acetoxy-4-(3,3-difluorobutyl)piperidine-1-carboxylate
(100 mg, 0.426 mmol) in MeOH (10 mL) and H.sub.2O (2 mL) was added
NaOH (145 mg, 8.45 mmol). The resulting mixture was stirred at
40.degree. C. for 4 h. After cooling to room temperature, the
mixture was acidified with 2N HCl solution. After removal of MeOH,
the resulting solution was extracted with ethyl acetate. The
organic layer was dried over Na.sub.2SO.sub.4, filtered, and
evaporated to dryness under reduced pressure to give the crude
product which was used in the next step without further
purification.
Step F: 4-(3,3-difluorobutyl)piperidin-4-ol (16G)
##STR00604##
[0725] The solution of
tert-butyl-4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carboxylate
(0.932 g, 3.2 mmol) in the solution of HCl in 1,4-dioxane (3M, 5
mL) was stirred at room temperature for 1 hour. The solution was
evaporated to dryness under reduced pressure to give the product
which was used in the next step without further purification.
LC-MS: m/z 194.3 (M+H).sup.+.
General Procedure 17
##STR00605##
[0726] Step A:
tert-butyl-4-hydroxy-4-(2-(trifluoromethyl)allyl)piperidine-1-carboxylate
(17B)
##STR00606##
[0728] A solution of tert-butyl 4-oxopiperidine-1-carboxylate (500
mg, 2.51 mmol) and allylbromide (1.2 g, 6.3 mol, 2.5 eq.) in THF (5
mL) and saturated ammonium chloride solution (20 mL) was cooled to
10.degree. C., and zinc dust (328 mg, 5.0 mol, 2 eq.) was added
portion wise. After the addition was complete, the reaction mixture
was stirred at room temperature overnight, when TLC (heptane/EtOAc
7:1) indicated complete conversion. The reaction mixture was
diluted with water (5 mL), and then extracted with EtOAc. The
organic layer was washed with saturated NaHCO.sub.3 solution,
brine, and evaporated to give the title compound, which was used in
the next step without further purification.
Step B: 4-(2-(trifluoromethyl)allyl)piperidin-4-ol (17C)
##STR00607##
[0730] To a solution of
tert-butyl-4-hydroxy-4-(2-(trifluoromethyl)allyl)piperidine-1-carboxylate
17B (300 mg, 0.97 mmol), in DCM (5 mL) was added a solution of HCl
in dioxane (3 M, 1 mL, 3 mmol), and then the mixture was stirred at
room temperature for 16 hrs. The mixture was concentrated in vacuo
to get the desired compound which was used directly for the next
step. LC-MS: m/z 210.2 (M+H).sup.+
Step C: 4-(3,3,3-trifluoro-2-methylpropyl)piperidin-4-ol (17D)
##STR00608##
[0732] To a mixture of
tert-butyl-4-hydroxy-4-(2-(trifluoromethyl)allyl)piperidine-1-carboxylate
(100 mg, 0.32 mmol) in EtOH (5 mL) was added 10% Pd/C (20 mg) and a
drop of AcOH. The mixture was stirred at 40.degree. C. for 16 hrs
under H.sub.2 atmosphere. The reaction mixture was filtered through
a celite pad; the filtrate was concentrated to get the title
compound which was used directly for the next step without
purification. LC-MS: m/z 212.2 (M+H).sup.+
General Procedure 18
##STR00609##
[0733] Step A:
[0734] Compound 18B (1 eq.) was taken in dry THF and cooled to
-78.degree. C. when a solution of n-Butyllithium (1.2 eq.) in
hexane was added over a period of 15 min at -78.degree. C. under
nitrogen atmosphere. The reaction mixture was stirred for 30 min
-78.degree. C., and then allowed to stir at -5.degree. C. for 30
min. The resulting mixture was then cooled again to -78.degree. C.,
and tert-butyl 4-oxopiperidine-1-carboxylate (18A, 0.9 eq.) in THF
was added over a period of 15 min. The resulting reaction mixture
was then allowed to warm up to room temperature and stirred at r.t.
for 16 hrs. The progress of the reaction was monitored by TLC. Upon
completion of reaction, the mixture was quenched with satd.
NH.sub.4Cl solution (500 mL) and extracted with EtOAc. The combined
organic layers were washed with water, dried over Na.sub.2SO.sub.4
and concentrated under reduced pressure. The crude product was
purified by column chromatography using silica gel (100-200 mesh)
and 10% EtOAc in hexane to afford the corresponding compounds
18C-1, 18C-2 and 18C-3 as light yellow oils. tert-butyl
4-hydroxy-4-(pyridin-2-ylmethyl)piperidine-1-carboxylate
(18C-1)
##STR00610##
[0735] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.49-8.48 (m, 1H), 7.64
(t, 1H, J=8 Hz), 7.18 (t, 1H, J=8 Hz), 7.12 (d, 1H, J=7.6 Hz),
3.80-3.77 (m, 2H), 3.24-3.22 (m, 2H), 2.90 (s, 2H), 1.54-1.47 (m,
4H), 1.45 (s, 9H).
tert-butyl
4-hydroxy-4-((6-methylpyridin-2-yl)methyl)piperidine-1-carboxyl-
ate (18C-2)
##STR00611##
[0737] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.51 (t, 1H, J=7.6 Hz),
7.02 (d, 1H, J=7.6 Hz), 6.90 (d, 1H, J=7.6 Hz), 6.36 (bs, 1H),
3.79-3.77 (m, 2H), 3.24-3.22 (m, 2H), 2.84 (s, 2H), 2.51 (s, 3H),
1.51-1.47 (m, 4H), 1.45 (s, 9H).
tert-butyl
4-((6-fluoropyridin-2-yl)methyl)-4-hydroxypiperidine-1-carboxyl-
ate (18C-3)
##STR00612##
[0739] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.76-7.70 (m, 1H), 7.02
(d, 1H, J=7.2 Hz), 6.82 (d, 1H, J=8 Hz), 4.44 (s, 1H), 3.80-3.78
(m, 2H), 3.21-3.20 (m, 2H), 2.87 (s, 2H), 1.63-1.49 (m, 4H), 1.45
(s, 9H).
Step B:
[0740] Compound 18C (1 eq.) was dissolved in DCM, cooled to
0.degree. C., and TFA (10 eq.) was added at 0.degree. C. and the
reaction mixture was then stirred for 3-4 hrs at room temperature
until LCMS and TLC confirmed completion of the reaction. The
reaction mixture was concentrated to dryness, triturated 3 to 4
times with DCM and washed with n-pentane to afford compound 18D as
colorless oil. The crude product was used for the next step
directly without further purification.
General Procedure 19
##STR00613##
[0742] Step A: The corresponding 2-R-3-methylpyridine (1 eq.) was
taken in dry THF and cooled to -78.degree. C. A solution of lithium
diisopropylamide (1.8 eq.) 2.5M in THF was added to the above
reaction mixture over 15 min at -78.degree. C. under nitrogen
atmosphere and stirred for 30 min at same temperature. The reaction
mixture was then stirred at -5.degree. C. for 30 min before cooling
it again to -78.degree. C. when tert-butyl
4-oxopiperidine-1-carboxylate (19A, 0.9 eq.) in THF was added over
15 min. The resulting mixture was then allowed to stir at room
temperature for 16 hrs. The progress of the reaction was monitored
by TLC. Upon completion of reaction, the mixture was quenched with
satd. NH.sub.4Cl solution (500 mL) and extracted with EtOAc. The
combined organic layers was washed with water, dried over
Na.sub.2SO.sub.4 and concentrated under reduced pressure. The crude
product was purified by column chromatography using silica gel
(100-200 mesh) and 10% EtOAc in Hexane to afford the title compound
19B as light yellow oil. tert-butyl
4-hydroxy-4-(pyridin-3-ylmethyl)piperidine-1-carboxylate
(19B-1)
##STR00614##
[0743] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.51-8.46 (m, 2H), 7.56
(d, 1H, J=8 Hz), 7.27-7.24 (m, 1H), 3.88-3.81 (m, 2H), 3.12-3.07
(m, 2H), 2.76 (s, 2H), 1.63-1.61 (m, 2H), 1.49-1.47 (m, 2H), 1.45
(s, 9H).
[0744] Step B: compound 19B-1 or 19B-2 (1 eq.) was dissolved in
DCM, cooled to 0.degree. C. to which TFA (10 eq.) was added at
0.degree. C. and the reaction mixture was then stirred for 3-4 hrs
at room temperature until LCMS and TLC confirmed completion of the
reaction. The reaction mixture was concentrated to dryness,
triturated 3 to 4 times with DCM and washed with n-pentane to
afford compound 19C-1 or 19C-2, respectively, as colorless oil. The
crude product was used for the next step without purification.
General Procedure 20
##STR00615##
[0745] Step A: 2-fluoroquinoline (20B)
##STR00616##
[0747] To a solution of 2-chloroquinoline (4.9 g, 30 mmol) in 200
mL of anhydrous DMSO was added cesium fluoride (9.13 g, 60 mmol),
and the resulting mixture was stirred at 130.degree. C. overnight,
when LC-MS showed completion of the reaction. After cooling, the
reaction mixture was diluted with water, and then extracted with
ethyl acetate. The organic layer was then washed with brine, dried
over anhy. Na.sub.2SO.sub.4, and concentrated in vacuo. Column
chromatography (6% EtOAc/PE) afforded 3.34 g of title compound.
.sup.1H NMR (CHLOROFORM-d) .delta.: 8.23 (d, J=8.6 Hz, 1H), 7.89
(d, J=8.6 Hz, 1H), 7.82-7.86 (m, 1H), 7.67 (d, J=8.5, 7.0, 1.5 Hz,
1H), 7.47-7.53 (m, 1H), 7.35 (d, J=8.6 Hz, 1H). LC-MS: m/z 148.2
(M+H).sup.+
Step B: 2-fluoroquinoline-8-sulfonyl chloride (20C)
##STR00617##
[0749] A solution of 2-fluoroquinoline (1.3 g, 8.9 mmol) in
chlorosulfonic acid (15 mL) was stirred at -5-0.degree. C. for 15
minutes and at 130.degree. C. overnight. The resulting reaction
mixture was poured into an ice-water mixture (300 mL), stirred at
room temperature for 20 min, and extracted with EtOAc. The organic
layer was then washed with brine, dried over Na.sub.2SO.sub.4 and
solvent was removed. The residue was purified by column
chromatography using a gradient elution from 100% PE to PE/EtOAc
(100:6) to afford 1.1 g of title compound. .sup.1H NMR
(CHLOROFORM-d) .delta.: 8.56 (d, J=7.5 Hz, 1H), 8.43 (t, J=8.3 Hz,
1H), 8.25 (d, J=8.3 Hz, 1H), 7.72 (t, J=7.8 Hz, 1H), 7.32 (dd,
J=8.9, 3.0 Hz, 1H). LC-MS: m/z 246.3 (M+H).sup.+
General Procedure 21
##STR00618##
[0750] Step A: 3-fluoroquinoline (21B)
##STR00619##
[0752] Quinolin-3-amine (4 g, 27.7 mmol) was added to HBF.sub.4 (26
mL, 48% aqueous solution) portionwise at room temperature, and the
mixture was stirred at room temperature until it became
homogeneous. The mixture was then cooled to 0.degree. C., and a
solution of NaNO.sub.2 (2.4 g, 34.8 mmol) in H.sub.2O (8 mL) was
added dropwise, when the reaction mixture became heterogeneous. The
mixture was stirred at 0.degree. C. for 1 hour, then the mixture
was filtered, and the filtered cake was washed with cold EtOH, then
Et.sub.2O. The resulting solid was dried under vacuum, then
suspended in toluene in a round bottom flask and was refluxed for
1.5 hours. The resulting mixture was cooled to room temperature,
and then poured into cold water. The organic layer was dried over
Na.sub.2SO.sub.4, and then concentrated in vacuo to obtain the
desired product (1.6 g). LC-MS: m/z 148.1 (M+H).sup.+
Step B: 3-fluoroquinoline-8-sulfonyl chloride (21C)
##STR00620##
[0754] A mixture of 3-fluoroquinoline (0.6 g, 4.08 mmol) and
HSO.sub.3Cl (2 mL) in a round bottom flask equipped with a cooling
condenser was stirred at 130.degree. C. overnight. When TLC
indicated that the reaction was complete, the resulting mixture was
carefully poured into crushed ice, the mixture was extracted with
DCM (100 mL.times.3), and the combined organic layers were dried
over Na.sub.2SO.sub.4, and concentrated. The crude mixture was
purified by chromatography (5% Ethyl Acetate/PE) to give the
desired 3-fluoroquinoline-8-sulfonyl chloride. .sup.1H NMR
(CHLOROFORM-d) .delta.: 9.15 (d, J=2.6 Hz, 1H), 8.53 (d, J=7.6 Hz,
1H), 8.23 (dd, J=8.2, 0.9 Hz, 1H), 7.97 (dd, J=8.1, 2.8 Hz, 1H),
7.69-7.83 (m, 1H). LC-MS: m/z 246.7 (M+H).sup.+
General Procedure 22
##STR00621##
[0755] Step A: 5-fluoroquinoline (22A)
##STR00622##
[0757] To a solution of quinolin-5-amine (2 g, 13.9 mmol) in 10 mL
of 48% HBF.sub.4 at 0.degree. C. was added sodium nitrite (933 mg,
13.5 mmol) portionwise. This was stirred for 1 hour and then poured
into 1:1 ethyl acetate diethyl ether mixture (50 mL). The resulting
suspension was filtered and the solid was dried. This solid was
added portionwise to refluxing xylene (30 mL) and stirred for 3
hours, then allowed to cool. The xylene was decanted off and the
residue was dissolved in 1N HCl (50 mL). After neutralization with
NaHCO.sub.3, the mixture was extracted with ethyl acetate
(3.times.50 mL). The extracts were dried over sodium sulfate,
filtered and the volatiles were removed under reduced pressure. The
residue was purified by silica gel chromatography (3% EtOAc/PE) to
afford 800 mg of title compound as colorless oil. LC-MS: m/z 148.2
(M+H).sup.+
Step B: 5-fluoroquinoline-8-sulfonyl chloride (22C)
##STR00623##
[0759] 5-fluoroquinoline (800 mg, 5.4 mmol) was added slowly to 10
mL of chlorosulfonic acid at 0.degree. C. When the addition was
complete, the reaction mixture was heated at 130.degree. C.
overnight. The solution was allowed to cool and was slowly poured
over ice. The aqueous layer was extracted with ethyl acetate
(3.times.50 mL). The combined organic extracts were dried and
evaporated to give the crude product, which was purified by column
chromatography (5% EtOAc/PE) to afford 400 mg of title compound.
.sup.1H NMR (CHLOROFORM-d) .delta.: 7.40 (t, J=8.46 Hz, 1H), 7.74
(dd, J=8.60, 4.30 Hz, 1H), 8.55-8.64 (m, 2H), 9.32 (dd, J=4.30,
1.88 Hz, 1H). LC-MS: m/z 4 246 (M+H).sup.+
General Procedure 23
##STR00624##
[0760] Step A: 6-fluoro-8-nitroquinoline (23B)
##STR00625##
[0762] A mixture of 6-fluoroquinoline (2 g, 13.6 mmol) and fuming
HNO.sub.3 (15 mL) in a round bottom flask equipped with a cooling
condenser was refluxed for 100 hours, the resulting mixture was
cooled to r.t., poured slowly into crushed ice/H.sub.2O, and then
the mixture was extracted with DCM (200 mL.times.3). The combined
organic layers were dried over Na.sub.2SO.sub.4, and concentrated.
The residue was passed through a short pad of silica gel to give
1.6 g of title compound. .sup.1H NMR (CHLOROFORM-d) .delta.: 9.08
(dd, J=4.1, 1.5 Hz, 1H), 8.25 (dd, J=8.5, 1.5 Hz, 1H), 7.89 (dd,
J=7.5, 2.8 Hz, 1H), 7.72 (dd, J=8.1, 2.8 Hz, 1H), 7.62 (dd, J=8.4,
4.3 Hz, 1H). LC-MS: m/z 466.6 (M+H).sup.+
Step B: 6-fluoroquinolin-8-amine (23C)
##STR00626##
[0764] To a mixture of 6-fluoro-8-nitroquinoline (1.6 g, 8.3 mmol),
and NH.sub.4Cl (2 g, 41.5 mmol) in EtOH/H.sub.2O (10 mL/10 mL) in a
round bottom flask equipped with a refluxing condenser was added Zn
(5.4 g, 16.6 mmol) dust in portions at room temperature, and the
resulting mixture was stirred at 60.degree. C. overnight. The
reaction mixture was filtered, and the filtrate was extracted with
EtOAc. The combined organic layers were dried over
Na.sub.2SO.sub.4, and concentrated to give 1.0 g of crude product,
which was used directly for the next step without further
purification. LC-MS: m/z 163.2 (M+H).sup.+
Step C: 6-fluoroquinoline-8-sulfonyl chloride (23D)
##STR00627##
[0765] (a) Thionyl chloride (2.1 mL) was added dropwise to water
(12.5 mL) at 5.degree. C. This mixture was allowed to warm to room
temperature and stirred overnight. CuCl (10 mg) was then added and
the resulting yellow solution was cooled to 0.degree. C. (b)
Concentrated hydrochloric acid (6.75 mL) was cooled to 0.degree. C.
while 6-fluoroquinolin-8-amine (1 g) was added portionwise. The
mixture was allowed to warm up slightly between additions, during
which time the reaction mixture turned yellow. After the addition
was complete, the reaction mixture was cooled to -5.degree. C. and
a solution of NaNO.sub.2 (0.5 g) in water (2 mL) was added
dropwise. After complete addition and at -5.degree. C., the
resulting mixture was added slowly to the cooled thionyl
chloride/CuCI mixture from part (a). Then the mixture was stirred
at 0.degree. C. for about 1 hour. The resulting mixture was
extracted with DCM, combined organic layers were dried over
Na.sub.2SO.sub.4, concentrated to yield 500 mg of title compound
which was used for the next step without further purification.
LC-MS: m/z 246.7 (M+H).sup.+
General Procedure 24-1
##STR00628##
[0766] Step A: Benzo[d]thiazole-4-sulfonyl chloride (24B)
##STR00629##
[0768] Benzo[d]thiazole (1 g, 7.45 mol) was added dropwise to
chlorosulfonic acid (5.5 mmol) at 0.degree. C. After the addition
was complete, the mixture was stirred at room temperature for 0.5 h
and then heated at 105.degree. C. and stirred overnight. The
resulting mixture was cooled to -10.degree. C. and quenched by
pouring on crushed ice slowly. The resulting mixture was extracted
with EtOAc (100 mL.times.2). The combined organic phase was washed
with brine, dried over anhy. Na.sub.2SO.sub.4 and concentrated in
vacuo. Column chromatography (15% PE/EtOAc) afforded 218 mg of
title compound. .sup.1H NMR (CHLOROFORM-d) .delta.: 9.41 (s, 1H),
8.41 (dd, J=8.1, 1.0 Hz, 1H), 8.29 (dd, J=7.7, 1.1 Hz, 1H), 7.68
(t, J=7.9 Hz, 1H). LC-MS: m/z 234.7 (M+H).sup.+
General Procedure 24
##STR00630##
[0769] Step A: benzo[c]isothiazole (24B)
##STR00631##
[0771] To a solution of o-toluidine (10 g, 93.4 mmol) in 50 mL
toluene was added SOCl.sub.2 (12.1 g, 102 mmol) dropwise at
0.degree. C. After the addition was complete, the reaction mixture
was heated to reflux and stirred overnight. The reaction mixture
was cooled to room temperature, and concentrated under reduced
pressure to give a yellow oil. The oil was dissolved in toluene
(100 mL), then a solution of N-sulfinylmethanesulfonamide (20.6 g,
146 mmol) was added dropwise, followed by pyridine (7.3 g, 93.4
mmol). The mixture was heated to reflux and stirred at that
temperature overnight. Toluene was then removed under reduced
pressure, the residue was dissolved in EtOAc (200 mL) and washed
with water (2.times.200 mL). The organic layer was washed with
brine, dried and evaporated to give the crude product. The crude
product was purified by column chromatography (3% EtOAc/PE) to
afford 6.2 g title compound as colorless oil. .sup.1H NMR
(CHLOROFORM-d) .delta. 9.22 (s, 1H), 7.88 (d, J=9.7 Hz, 1H), 7.80
(d, J=8.6 Hz, 1H), 7.46 (ddd, J=8.9, 6.5, 1.2 Hz, 1H), 7.26 (dd,
J=7.9, 6.6 Hz, 1H).
Step B: benzo[c]isothiazole-7-sulfonyl chloride (24C)
##STR00632##
[0773] Benzo[c]isothiazole 24B (1 g, 7.45 mmol) was added dropwise
to chlorosulfonic acid (5.5 mmol) at 0.degree. C. After the
addition was complete, the mixture was stirred at room temperature
for 0.5 h and then heated at 105.degree. C. and stirred overnight.
The resulting mixture was cooled to -10.degree. C. and quenched by
pouring on crushed ice slowly. The resulting mixture was extracted
with EtOAc (100 mL.times.2). The combined organic phase was washed
with brine, dried over anhy. Na.sub.2SO.sub.4 and concentrated in
vacuo. Column chromatography (15% PE/EtOAc) afforded 200 mg of
title compound. .sup.1H NMR (CHLOROFORM-d) .delta.: 9.68 (s, 1H),
8.66 (d, J=1.9 Hz, 1H), 8.10 (d, J=9.4 Hz, 1H), 7.99 (dd, J=9.4,
2.1 Hz, 1H).
General Procedure 25
##STR00633##
[0774] Step A: 1-fluoro-3-nitro-2-thiocyanatobenzene (25B)
[0775] A solution of 2-fluoro-6-nitroaniline (3 g, 0.02 mol) in
conc. sulphuric acid (30 mL) and water (30 mL) was diazotized at
0-3.degree. C. for 90 min with aqueous sodium nitrite (1.45 g,
0.021 mol). After addition of potassium thiocyanate (2.522 g, 0.026
mol) in water (10 mL), the diazo-liquor was stirred vigorously into
a suspension of cuprous thiocyanate (6.05 g, 0.05 mol) in water (20
mL) at 5.degree. C. After stirring at 5.degree. C. for 2 hr, the
mixture was then heated at 70.degree. C. for 20 min, then was
cooled overnight, filtered, and the cake extracted with EtOAc to
get the crude product (3.96 g) which was used in the next step
without further purification. LC-MS: m/z 199.2 (M+H).sup.+
Step B: 7-fluorobenzo[d]thiazol-2-amine (25C)
[0776] A mixture of 1-fluoro-3-nitro-2-thiocyanatobenzene 2 (3.96
g, 0.02 mol), ethanol (30 mL), water (25 mL) and conc. hydrochloric
acid (25 mL) was refluxed gently during the addition of
hydrogen-reduced iron powder (8 g). After refluxing for 16 hr, the
liquor was filtered hot, cooled, the residue filtered, dissolved in
hot water, and neutralized with ammonia and then extracted with
EtOAc to get the compound 7-fluorobenzo[d]thiazol-2-amine (1 g) as
a colorless oil. LC-MS: m/z 169.2 (M+H).sup.+
Step C: 7-fluorobenzo[d]thiazole (25D)
[0777] To a solution of 7-fluorobenzo[d]thiazol-2-amine 25C (1 g,
5.95 mmol) in THF (10 mL) was added isoamyl nitrite (1.51 g, 12.9
mmol) at room temperature. After refluxing for 3 hr, the reaction
mixture was then allowed to cool to room temperature and poured
into ice water (50 mL), and then extracted with EtOAc. The organic
extract was washed with water and brine, dried and evaporated. The
residue was chromatographed on silica gel to get the
7-fluorobenzo[d]thiazole as colorless oil. LC-MS: m/z 154.2
(M+H).sup.+
Step D: 7-fluorobenzo[d]thiazole-4-sulfonyl chloride (25E)
[0778] 7-fluorobenzo[d]thiazole 25D (500 mg, 3.26 mmol) was added
dropwise to chlorosulfonic acid (2.5 mmol) at 0.degree. C. After
the addition was complete, the mixture was stirred at room
temperature for 0.5 h and then heated at 105.degree. C. and stirred
overnight. The resulting mixture was cooled to -10.degree. C. and
quenched by pouring on crushed ice slowly. The resulting mixture
was extracted with EtOAc (20 mL.times.2). The combined organic
phase was washed with brine, dried over anhy. Na.sub.2SO.sub.4 and
concentrated in vacuo. Column chromatography (15% PE/EtOAc)
afforded 200 mg of title compound. .sup.1H NMR (CHLOROFORM-d)
.delta.: 9.44 (s, 1H), 8.32 (dd, J=8.6, 4.6 Hz, 1H), 7.38 (t, J=8.5
Hz, 1H).
General Procedure 26
##STR00634##
[0779] Step A: 2-amino-6-fluorobenzo[d]thiazole-4-sulfonyl chloride
(26B)
##STR00635##
[0781] 6-fluorobenzo[d]thiazol-2-amine (1 g, 5.95 mol) was added
dropwise to chlorosulfonic acid (5.0 mmol) at 0.degree. C. After
the addition was complete, the mixture was stirred at room
temperature for 0.5 h and then heated at 105.degree. C. and stirred
overnight. The resulting mixture was cooled to -10.degree. C. and
quenched by pouring on crushed ice slowly. The resulting mixture
was extracted with EtOAc (100 mL.times.2). The combined organic
phase was washed with brine, dried over anhy. Na.sub.2SO.sub.4 and
concentrated in vacuo. Column chromatography (50% PE/EtOAc)
afforded 200 mg of title compound. LC-MS: m/z 266.7 (M+H).sup.+
Step B: ethyl
4-(2-amino-6-fluorobenzo[d]thiazole-4-sulfonamido)benzoate
(26C)
##STR00636##
[0783] To a solution of the ethyl 4-aminobenzoate (413 mg, 2.5
mmol) in 20 mL of DCM was added pyridine (600 mg, 7.5 mmol) and
2-amino-6-fluorobenzo[d]thiazole-4-sulfonyl chloride (668 mg, 2.5
mmol). The resulting mixture was stirred at 50.degree. C.
overnight. After removal of DCM, the residue was partitioned
between water and EtOAc. The organic layer was washed with 2 N HCl,
water and brine, dried over Na.sub.2SO.sub.4 and concentrated to
give crude product, which was purified by chromatography to give
pure compound 26C. .sup.1H NMR (CHLOROFORM-d) .delta.: 8.10 (s,
1H), 7.93-7.82 (m, 2H), 7.59 (dd, J=8.2, 2.6 Hz, 1H), 7.47 (dd,
J=7.5, 2.6 Hz, 1H), 7.20-7.09 (m, 2H), 5.73 (s, 2H), 4.32 (q, J=7.1
Hz, 2H), 1.35 (t, J=7.1 Hz, 3H). LC-MS: m/z 396.5 (M+H).sup.+
General Procedure 27
##STR00637##
[0784] Step A: 6-chloro-N-methylbenzo[d]thiazol-2-amine (27B)
##STR00638##
[0786] To a solution of 2,6-dichlorobenzo[d]thiazole (2 g, 10 mmol)
in 10 mL THF was added 25% MeNH.sub.2 in water (3 mL) dropwise.
After the addition complete, the reaction mixture was stirred at
room temperature overnight. Filter off the product and washed with
methanol. Drying in vacuo to yield 1.5 g of the desired compound.
LC-MS: m/z 204.2 (M+H).sup.+
Step B: 6-chloro-2-(methylamino)benzo[d]thiazole-4-sulfonyl
chloride (27C)
##STR00639##
[0788] A solution of 6-chloro-N-methylbenzo[d]thiazol-2-amine (500
mg, 2.53 mmol) in chlorosulfonic acid (5 mL) was stirred at
130.degree. c. overnight. The solution was allowed to cool and
slowly added to a large excess of ice. The aqueous layer was
extracted with EtOAc (3.times.50 mL). The combined organic layers
were washed with brine, dried over Na.sub.2SO.sub.4 and
concentrated under reduced pressure. The residue was purified by
chromotography (silica gel) eluting with PE/EA=1:1 to get the title
compound. .sup.1H NMR (CHLOROFORM-d) .delta.: 7.95 (d, J=1.9 Hz,
1H), 7.89 (d, J=2.1 Hz, 1H), 6.70 (br. s., 1H), 3.16 (d, J=4.3 Hz,
3H). LC-MS: m/z 297 (M+H).sup.+
General Procedure 28
##STR00640##
[0789] Step A: quinazolin-4-ol (28B)
##STR00641##
[0791] A solution of ethyl 2-aminobenzoate (5.0 g, 30 mmol) in
methoxyethanol (20 mL) was treated with formamidine acetate (8 g,
77 mmol) under reflux for 17 h. A second portion of formamidine
acetate (8 g, 77 mmol) was then added, and the reflux was continued
for 7 more hours. The mixture was cooled, and the solvent was
removed under vacuum. The residue was taken in saturated
NaHCO.sub.3 and extracted with ethyl acetate. The organic layers
were combined, washed with saturated NaHCO.sub.3, and dried with
magnesium sulfate, and the solvent was removed under vacuum to give
the desired compound (4.84 g, 91%), which was used for the next
step without further purification. LC-MS: m/z 147.7 (M+H).sup.+
Step B: 4-hydroxyquinazoline-8-sulfonyl chloride (28C)
##STR00642##
[0793] Chlorosulfonic acid (4.10 mL, 62.6 mmol) was slowly added to
quinazolin-4-ol (1.09 g, 0.26 mmol). The resulting mixture was
heated to 140.degree. C. and stirred for 3 hours at the same
temperature. After cooling to room temperature, the reaction
mixture was poured into crushed ice. The mixture was extracted with
DCM (100 mL.times.3), the combined organic layers were dried over
Na.sub.2SO.sub.4, filtered, and the filtrate was concentrated in
vacuo. The residue was purified via flash chromatography (5% PE:
Ethyl Acetate) to give 370 mg of 4-hydroxyquinazoline-8-sulfonyl
chloride. .sup.1H NMR (400 MHz, DMSO-d.sub.6) .delta.: 7.76 (t,
J=7.79 Hz, 1H) 8.26 (ddd, J=9.67, 7.92, 1.48 Hz, 2H) 9.02 (s, 1H).
LC-MS: m/z 245.7 (M+H).sup.+
General Procedure 29
##STR00643##
[0794] Step A: methyl 2-(difluoromethoxy)-4-nitrobenzoate (29B)
##STR00644##
[0796] A mixture of methyl 2-hydroxy-4-nitrobenzoate (1.1 g, 5.6
mmol), sodium 2-chloro-2,2-difluoroacetate (1.0 g, 6.6 mmol) and
Na.sub.2CO.sub.3 (710 mg, 6.7 mmol) in DMF (10 mL) was stirred at
100.degree. C. overnight. After cooling to rt, the mixture was
partitioned between water and EtOAc. The organic layer was
separated and washed with twice with water, then brine, dried over
Na.sub.2SO.sub.4 and concentrated, and purified by a standard
method to give the title product (330 mg). .sup.1H NMR
(CHLOROFORM-d) .delta.: 8.15-8.19 (m, 1H), 8.13 (s, 1H), 8.06 (d,
J=8.6 Hz, 1H), 6.68 (s, 1H), 3.98 (t, J=72.8 Hz, 1H).
Step B: Methyl 4-amino-2-(difluoromethoxy)benzoate (29C)
##STR00645##
[0798] A mixture of methyl 2-(difluoromethoxy)-4-nitrobenzoate (330
mg, 1.3 mmol) and 10% Pd on carbon (50 mg) in THF (10 mL) was
stirred at room temperature under hydrogen atmosphere for 6 hours.
The solid was removed by filtration and the solvent was
concentrated to give the crude aniline. LC-MS: m/z 218.1
(M+H).sup.+
General Procedure 30
##STR00646##
[0799] Step A: methyl 2-chloro-4-nitrobenzoate (30B)
##STR00647##
[0801] To a solution of 2-chloro-4-nitrobenzoic acid (10 g, 0.06
mol) in MeOH (120 mL) was added H.sub.2SO.sub.4 (5 mL). The
resulting mixture was stirred at 60.degree. C. overnight. After
cooling to room temperature, the mixture was brought to pH=8 using
sodium bicarbonate solution. After removal of MeOH, the resulting
crude mixture was purified by column chromatography (20%
CH.sub.2Cl.sub.2/PE) to afford 4 g of the title compound. LC-MS:
m/z 216.6 (M+H).sup.+
Step B: methyl 2-cyano-4-nitrobenzoate (30C)
##STR00648##
[0803] A mixture of methyl 2-chloro-4-nitrobenzoate (2 g, 9.3
mmol), CuCN (3.3 g, 37.2 mmol), and Pd(PPh.sub.3).sub.4 (1.075 g,
0.93 mmol) was suspended in DMF (15 mL) and then subjected to
microwave irradiation at 150.degree. C. for 4 hours. After the
mixture was concentrated under reduced pressure, the residue was
partitioned between ethyl acetate and water. The organic layer was
dried over Na.sub.2SO.sub.4, filtered, and the filtrate was
evaporated to dryness under reduced pressure. The crude material
was purified by column chromatography (20% EA/PE) to afford 0.9 g
of title compound. LC-MS: m/z 207.1 (M+H).sup.+.
Step C: methyl 4-amino-2-cyanobenzoate (30D)
##STR00649##
[0805] To a solution of methyl 2-cyano-4-nitrobenzoate (0.9 g, 4.4
mmol) in MeOH (5 mL) was added Pd/C (0.1 g). The resulting mixture
was stirred at room temperature for 2 hours under hydrogen
atmosphere. The mixture was filtered, and the filtrate was
evaporated to dryness under reduced pressure to give the title
product (0.77 g), which was used in the next step without further
purification. LC-MS: m/z 177.2 (M+H).sup.+
General Procedure 31
##STR00650##
[0806] Step A: 6-methyl-5-nitropicolinonitrile (31B)
##STR00651##
[0808] To a mixture of methyl 2-bromo-4-nitrobenzoate (31A, 4 g,
18.4 mmol) in 10 mL DMA was added CuCN (6.6 g, 74 mmol), and
Pd(PPh.sub.3).sub.4 (1.06 g, 0.92 mmol) under N.sub.2. The mixture
was stirred at 150.degree. C. under microwave irradiation for 4
hrs. Then the mixture was diluted water and filtered. The filtrate
was extracted with EtOAc (20 mL). The organic layer was dried,
concentrated, and purified by silica gel chromatography (PE:
EtOAc=3:1) to give 500 mg the title compound. .sup.1H NMR
(CHLOROFORM-d) .delta.: 8.08 (d, J=7.9 Hz, 1H), 7.68 (d, J=7.9 Hz,
1H), 2.85 (s, 3H).
Step B: 6-methyl-5-nitropicolinic acid (31C)
##STR00652##
[0810] To a solution of 6-methyl-5-nitropicolinonitrile (31B, 500
mg, 3.1 mmol) in 2-propanol (1 mL) and water (5 mL) was added
potassium tert-butoxide (687 mg, 6.13 mmol). The mixture was
stirred at 100.degree. C. overnight, when LCMS indicated that the
reaction was complete. The mixture diluted with water, and then
extracted with DCM (10 mL.times.3). The aqueous phase was acidified
with 1N HCl solution, and extracted with DCM. The organic layer was
dried and concentrated to give the crude product which was used to
the next step without further purification. LC-MS: m/z 181
(M-H).sup.+
Step C: 5-amino-6-methylpicolinic acid (31D)
##STR00653##
[0812] To a solution of 6-methyl-5-nitropicolinic acid (31C, 500
mg, 2.75 mmol) in methanol (10 ml) was added Pd/C (50 mg). The
solution was stirred at r.t. under H.sub.2 atmosphere for 1 h, when
LC-MS showed that s.m. was consumed. Then the mixture was filtered
and concentrated to give the crude product which was used to the
next step without further purification. LC-MS: m/z
153(M+H).sup.+
Step D: methyl 5-amino-6-methylpicolinate (31E)
##STR00654##
[0814] To a solution of 5-amino-6-methylpicolinic acid (31D, 240
mg, 1.5 mmol) in methanol was added conc. H.sub.2SO.sub.4. The
solution was stirred at 60.degree. C. overnight, when LC-MS showed
that s.m. was consumed. Then the mixture was concentrated and
neutralized with Na.sub.2CO.sub.3 solution to pH=7. The mixture was
extracted with DCM (10 mL.times.3). The organic layer was dried and
concentrated to give the title compound 31E. LC-MS: m/z 167
(M+H).sup.+
General Procedure 36
##STR00655##
[0815] Step A:
[0816] To a solution of 1-tert-butyl 4-ethyl
piperidine-1,4-dicarboxylate (36A, 1.24 g, 4.0 mmol) in anhydrous
THF (50 mL) was added LDA solution (2.1 mL, 5.2 mmol) dropwise at
-65.degree. C. for 30 min, and the resulting mixture was stirred at
-65.degree. C. for 15 min, and then stirred at -30.degree. C. for
another 30 min. After the addition of RBr (4.8 mmol, 1.2 eq) at
-65.degree. C., the mixture was stirred for another 15 min at
-65.degree. C., and then it was allowed to warm up to r.t. for 2
hrs. The reaction was quenched by adding 50 mL NH.sub.4Cl solution
(1 M), the organic phase was concentrated and the crude product
purified by a standard method to give the title compound 36B.
Step B:
[0817] A mixture of the corresponding compound 36B (2.0 mol) and
HCl (10 mL, 4M solution in 1,4-dioxane) was stirred at r.t. for 4
hrs. The solvent was then removed, and the residue was dissolved in
3.0 mL NaOH solution and 2.0 mL of methanol. The mixture was
stirred under microwave irradiation at 110.degree. C. for 10 min
and then concentrated. The residue was purified by a standard
method to give the title compound 36C.
Step C:
[0818] To a vial was added compound 36C (24.36 mmol) in 10 mL THF,
then borane-tetrahydrofuran complex (3.3 mL, 32.88 mmol) was added,
and the mixture was heated at reflux for 3 h. After washing with
satd. NaHCO.sub.3, brine, the combined organic layer was dried over
anhy. Na.sub.2SO.sub.4 and concentrated in vacuo to get the crude
product 36D and 36E, which was used directly for the next step
without purification.
Step D:
[0819] To a round-bottomed flask was added compound 36E (or 36B-1
or 36D-1, or 36D-2, or 36D-3) (0.2 mmol, 1 eq.), DMF (5 mL), DIPEA
(0.6 mmol, 3.0 eq.), HBTU (2.4 mmol, 1.2 eq.), and Intermediate 36G
(e.g., Ar-8-quinoline) (0.2 mmol, 1.0 eq.) sequentially. The
reaction mixture was stirred at room temperature overnight or until
TLC showed that s.m. was consumed. The mixture was diluted with
brine, extracted with ethyl acetate, the organic layer was dried
with anhydrous Na.sub.2SO.sub.4, filtered, and the filtrate was
concentrated in vacuo. The desired product 36F was purified by a
standard method.
Compound 149
General Procedure 36, Step D
N-(4-(4-benzyl-4-(hydroxymethyl)piperidine-1-carbonyl)phenyl)quinoline-8-s-
ulfonamide
##STR00656##
[0821] .sup.1H NMR (400 MHz, CDCl.sub.3) .delta.: 9.17 (dd, J=4.4,
1.7 Hz, 1H), 8.52 (dd, J=8.4, 1.6 Hz, 1H), 8.43 (dd, J=7.3, 1.3 Hz,
1H), 8.26-8.19 (m, 1H), 7.78-7.65 (m, 2H), 7.29-7.15 (m, 10H),
4.17-4.06 (m, 1H), 3.75 (s, 1H), 3.60 (t, J=5.7 Hz, 2H), 2.74 (s,
2H), 2.08-2.01 (m, 1H), 1.64-1.60 (m, 3H), 1.48-1.38 (m, 2H).
LC-MS: m/z 516.6 (M+H)
Compound 250
General Procedure 36, Step D
Ethyl
4-isobutyl-1-(4-(quinoline-8-sulfonamido)benzoyl)piperidine-4-carbox-
ylate
##STR00657##
[0823] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.16 (dd, J=4.3, 1.6 Hz,
1H), 8.38 (dd, J=7.3, 1.1 Hz, 1H), 8.32 (dd, J=8.3, 1.6 Hz, 1H),
8.06 (dd, J=8.3, 1.1 Hz, 1H), 7.59-7.67 (m, 2H), 7.13-7.19 (m,
J=8.6 Hz, 2H), 7.04-7.11 (m, J=8.6 Hz, 2H), 4.17 (q, J=7.0 Hz, 2H),
3.51 (br. s., 1H), 3.10 (br. s., 1H), 2.93 (br. s., 1H), 2.15-2.24
(m, 1H), 2.08 (d, J=10.2 Hz, 1H), 1.61-1.74 (m, 4H), 1.47 (d,
J=12.9 Hz, 2H), 1.29-1.36 (m, 2H), 1.26 (s, 1H), 0.83-0.91 (m, 6H).
LC-MS: m/z 524.7 (M+H).sup.+
Compound 137
General Procedure 36, Step D
N-(4-(4-formyl-4-isobutylpiperidine-1-carbonyl)phenyl)quinoline-8-sulfonam-
ide
##STR00658##
[0825] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.50 (s, 1H), 9.16 (dd,
J=4.3, 1.3 Hz, 1H), 8.27-8.41 (m, 2H), 8.02-8.11 (m, 1H), 7.55-7.68
(m, 2H), 7.12-7.19 (m, J=8.3 Hz, 2H), 7.05-7.11 (m, J=8.6 Hz, 2H),
3.48 (s, 1H), 2.93-3.17 (m, 2H), 1.96 (br. s., 2H), 1.64 (tt,
J=13.1, 6.5 Hz, 1H), 1.48 (br. s., 3H), 1.22-1.42 (m, 2H),
0.82-0.94 (m, 6H). LC-MS: m/z 480.7 (M+H).sup.+
Compound 172
General Procedure 36, Step D
N-(4-(4-(hydroxymethyl)-4-isobutylpiperidine-1-carbonyl)phenyl)quinoline-8-
-sulfonamide
##STR00659##
[0827] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.17 (dd, J=4.3, 1.6 Hz,
1H), 8.27-8.42 (m, 2H), 8.06 (dd, J=8.1, 1.3 Hz, 1H), 7.58-7.67 (m,
2H), 7.13-7.21 (m, 2H), 7.05-7.12 (m, 2H), 3.54 (s, 3H), 3.30 (br.
s., 2H), 1.69 (dd, J=12.6, 6.2 Hz, 2H), 1.47 (d, J=11.6 Hz, 3H),
1.34 (d, J=5.4 Hz, 3H), 0.95 (d, J=6.7 Hz, 6H). LC-MS: m/z 482.7
(M+H).sup.+
Compound 238
General Procedure 36, Step D
(N-(4-(4-(hydroxymethyl)-4-phenylpiperidine-1-carbonyl)phenyl)quinoline-8--
sulfonamide
##STR00660##
[0829] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.14 (dd, J=4.3, 1.6 Hz,
1H), 8.36 (dd, J=7.4, 1.2 Hz, 1H), 8.31 (dd, J=8.5, 1.5 Hz, 1H),
8.02-8.07 (m, 1H), 7.57-7.65 (m, 2H), 7.36-7.42 (m, 2H), 7.30-7.34
(m, 2H), 7.23-7.28 (m, 1H), 7.11-7.16 (m, J=8.6 Hz, 2H), 7.04-7.09
(m, J=8.6 Hz, 2H), 3.53 (s, 2H), 3.06-3.16 (m, 2H), 2.16-2.30 (m,
1H), 2.10-2.16 (m, 1H), 1.71-1.91 (m, 3H), 1.67 (dt, J=5.7, 2.9 Hz,
1H). LC-MS: m/z 502.7 (M+H).sup.+
Compound 216
General Procedure 36, Step D
N-(4-(4-(hydroxymethyl)-4-isobutylpiperidine-1-carbonyl)phenyl)benzo[d]thi-
azole-4-sulfonamide
##STR00661##
[0831] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.49 (s, 1H), 8.34 (dd,
J=8.2, 0.9 Hz, 1H), 8.12 (dd, J=7.7, 0.9 Hz, 1H), 7.58 (t, J=7.8
Hz, 1H), 7.19 (s, 4H), 4.62 (s, 1H), 3.71 (br. s., 1H), 3.58 (br.
s., 1H), 3.47 (s, 2H), 1.75 (s, 1H), 1.59 (br. s., 1H), 1.42-1.51
(m, 2H), 1.35 (d, J=5.1 Hz, 3H), 1.31 (br. s., 2H), 0.95 (d, J=6.7
Hz, 6H) LC-MS: m/z 488.7 (M+H).sup.+
Compound 219
General Procedure 36, Step D
N-(4-(4-(hydroxymethyl)-4-isobutylpiperidine-1-carbonyl)phenyl)quinoxaline-
-5-sulfonamide
##STR00662##
[0833] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.11 (d, J=1.9 Hz, 1H),
9.02 (d, J=1.9 Hz, 1H), 8.50 (dd, J=7.5, 1.3 Hz, 1H), 8.31 (dd,
J=8.3, 1.3 Hz, 1H), 7.91 (dd, J=8.5, 7.4 Hz, 1H), 7.14-7.24 (m,
4H), 3.70 (br. s., 1H), 3.57 (br. s., 1H), 3.46 (s, 2H), 3.37 (s,
1H), 3.28 (br. s., 2H), 1.66-1.77 (m, 1H), 1.55 (br. s., 1H), 1.43
(br. s., 2H), 1.24-1.37 (m, 3H), 0.95 (s, 3H), 0.93 (s, 3H). LC-MS:
m/z 483.6 (M+H).sup.+
General Procedure 37
##STR00663## ##STR00664##
[0834] Step A: tert-butyl
4-(3-((tert-butyldimethylsilyl)oxy)prop-1-yn-1-yl)-4-hydroxypiperidine-1--
carboxylate (37C)
##STR00665##
[0836] To a solution of tert-butyldimethyl(prop-2-yn-1-yloxy)silane
(0.5 mL, 2.46 mmol) in 30 mL of anhydrous THF was added dropwise
n-BuLi (1.2 mL, 2.95 mmol) at -78.degree. C. under N.sub.2. After
stirring for 1 h at -78.degree. C., tert-butyl
4-oxopiperidine-1-carboxylate (588.4 mg, 2.95 mmol) in THF (2 mL)
was added dropwise to the above solution at -78.degree. C. under
N.sub.2. The resulting mixture was stirred at -78.degree. C. under
N.sub.2 for 2 h, then allowed to warm to r.t. and stirred for
another 1.5 h. The reaction mixture was cooled to -78.degree. C.
and quenched by sat. NH.sub.4Cl aq., and the resulting mixture was
extracted with EtOAc (50 mL, 30 mL). The combined organic phase was
washed with brine, dried over anhy. Na.sub.2SO.sub.4 and
concentrated in vacuo to afford 1.10 g of title compound. LC-MS:
m/z 370.7 (M+H).sup.+. .sup.1H NMR (CHLOROFORM-d) .delta.: 4.37 (s,
2H), 3.74 (d, J=6.2 Hz, 2H), 3.35-3.24 (m, 2H), 2.46 (t, J=6.2 Hz,
1H), 1.92-1.84 (m, 2H), 1.71 (ddd, J=12.9, 9.1, 3.8 Hz, 2H), 1.47
(s, 9H), 0.92 (s, 9H), 0.13 (s, 6H).
Step B:
tert-butyl-4-(3-((tert-butyldimethylsilyl)oxy)prop-1-yn-1-yl)-4-((-
methoxycarbonyl)oxy) piperidine-1-carboxylate (37D)
##STR00666##
[0838] To a solution of tert-butyl
4-(3-((tert-butyldimethylsilyl)oxy)prop-1-yn-1-yl)-4-hydroxypiperidine-1--
carboxylate (500 mg, 1.353 mmol) in 30 mL of anhydrous THF was
added dropwise n-BuLi (0.65 mL, 1.623 mmol) at -78.degree. C. under
N.sub.2. After stirring for 1 h at -78.degree. C., methyl
carbonochloridate (176.2 mg, 1.623 mmol) in THF (1 mL) was added
dropwise to the above solution at -78.degree. C. under N.sub.2. The
resulting mixture was stirred at -78.degree. C. under N.sub.2 for 2
h, then allowed to warm to r.t. and stirred for another 8 h. The
reaction mixture was cooled to -78.degree. C. and quenched by sat.
NH.sub.4Cl aq., and the resulting mixture was extracted with EtOAc
(50 mL, 30 mL). The combined organic phase was washed with brine,
dried over anhy. Na.sub.2SO.sub.4 and concentrated in vacuo. Column
chromatography (15% PE/EtOAc) afforded 453 mg of title compound.
.sup.1H NMR (CHLOROFORM-d) .delta.: 4.40 (s, 2H), 4.26-4.15 (m,
2H), 3.80-3.67 (m, 2H), 3.41-3.28 (m, 2H), 2.27-2.14 (m, 2H), 2.00
(ddd, J=13.1, 9.2, 3.9 Hz, 2H), 1.48 (s, 9H), 1.33 (t, J=7.1 Hz,
4H), 0.92 (s, 9H), 0.14 (s, 6H).
Step C: tert-butyl
4-(3-hydroxyprop-1-yn-1-yl)-4-((methoxycarbonyl)oxy)piperidine-1-carboxyl-
ate (37E)
##STR00667##
[0840] To a solution of tert-butyl
4-(3-((tert-butyldimethylsilyl)oxy)prop-1-yn-1-yl)-4-((methoxycarbonyl)ox-
y)piperidine-1-carboxylate (450 mg, 1.02 mmol) in 30 mL of
anhydrous THF was added TBAF (800.5 mg, 3.06 mmol) at 0.degree. C.
under N.sub.2. After stirring for 1 h at 0.degree. C., the reaction
mixture was quenched by sat. NH.sub.4Cl aq., and the resulting
mixture was extracted with EtOAc (50 mL, 30 mL). The combined
organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4 and concentrated in vacuo. Column chromatography
(15% PE/EtOAc) afforded 290 mg of title compound. MS (ES) M+H
expected 313.25. found 313.47. .sup.1H NMR (CHLOROFORM-d) .delta.:
4.36 (s, 2H), 4.21 (q, J=7.1 Hz, 2H), 3.80-3.70 (m, 2H), 3.41-3.29
(m, 2H), 2.24-2.13 (m, 2H), 2.00 (ddd, J=13.2, 9.3, 3.9 Hz, 2H),
1.95 (s, 1H), 1.48 (s, 9H), 1.34 (t, J=7.1 Hz, 3H).
Step D: tert-butyl
4-((methoxycarbonyl)oxy)-4-(3-oxoprop-1-yn-1-yl)piperidine-1-carboxylate
(37F)
##STR00668##
[0842] To a solution of tert-butyl
4-(3-hydroxyprop-1-yn-1-yl)-4-((methoxycarbonyl)oxy)
piperidine-1-carboxylate (130 mg, 0.398 mmol) in 30 mL of DCM was
added NaHCO.sub.3 (334 mg, 3.98 mmol), DMP (338 mg. 0.796 mmol) at
r.t. The reaction mixture was stirred at r.t. for 8 h. The reaction
mixture was filtered and the residue mixture was extracted with
EtOAc (50 mL, 30 mL). The combined organic phase was washed with
brine, dried over anhy. Na.sub.2SO.sub.4 and concentrated in vacuo.
Column chromatography (15% PE/EtOAc) afforded 110 mg of title
compound. .sup.1H NMR (CHLOROFORM-d) .delta.: 9.29 (s, 1H), 4.25
(q, J=7.1 Hz, 2H), 3.80-3.64 (m, 2H), 3.49-3.35 (m, 2H), 2.30-2.18
(m, 2H), 2.17-2.03 (m, 2H), 1.48 (s, 9H), 1.36 (t, J=7.1 Hz,
3H).
Step E: tert-butyl
4-(3,3-difluoroprop-1-yn-1-yl)-4-((methoxycarbonyl)oxy)piperidine-1-carbo-
xylate (37G)
##STR00669##
[0844] To a solution of tert-butyl
4-((methoxycarbonyl)oxy)-4-(3-oxoprop-1-yn-1-yl)piperidine-1-carboxylate
(60 mg, 0.1846 mmol) in 5 mL of DCM was added DAST (89.3 mg, 0.5583
mmol) at 0.degree. C. under N.sub.2. After stirring for 8 h at
r.t., the reaction mixture was quenched by sat. NH.sub.4Cl aq., and
the resulting mixture was extracted with DCM (50 mL, 30 mL). The
combined organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4 and concentrated in vacuo. Column chromatography
(15% PE/EtOAc) afforded 63 mg of title compound. .sup.1H NMR
(CHLOROFORM-d) .delta.: 6.27 (t, J=54.4 Hz, 1H), 4.30-4.18 (m, 2H),
3.75 (d, J=7.0 Hz, 2H), 3.46-3.28 (m, 2H), 2.32-2.14 (m, 2H),
2.10-1.99 (m, 2H), 1.48 (s, 9H), 1.35 (t, J=7.1 Hz, 3H).
Step F: tert-butyl
4-(3,3-difluoroprop-1-yn-1-yl)-4-hydroxypiperidine-1-carboxylate
(37H)
##STR00670##
[0846] To a solution of tert-butyl
4-(3,3-difluoroprop-1-yn-1-yl)-4-((methoxycarbonyl)oxy)
piperidine-1-carboxylate (6.0 g, 18.5 mmol) in 100 mL of MeOH and
15 mL of water was added K.sub.2CO.sub.3 (3.822 g, 27.7 mmol) at
r.t. The reaction mixture was stirred at 48.degree. C. for 3 h. The
reaction mixture was cooled to r.t., and was extracted with EtOAc
(150 mL, 100 mL). The combined organic phase was washed with brine,
dried over anhy. Na.sub.2SO.sub.4 and concentrated in vacuo. Column
chromatography (15% PE/EtOAc) afforded 4.81 g of title
compound.
Step G: tert-butyl
4-(3,3-difluoropropyl)-4-hydroxypiperidine-1-carboxylate (37I)
##STR00671##
[0848] A solution of tert-butyl
4-(3,3-difluoroprop-1-yn-1-yl)-4-hydroxypiperidine-1-carboxylate
(350 mg, 1.273 mmol) in 30 mL of anhydrous THF was stirred with
Pd/C (200 mg) under H.sub.2 atmosphere at 15 psi at 48.degree. C.
for 8 h. The reaction mixture was cooled to r.t. and filtered, and
the resulting mixture was concentrated in vacuo to afforded 293 mg
of title compound. .sup.1H NMR (CHLOROFORM-d) .delta.: 5.89 (tt,
J=56.9, 4.3 Hz, 1H), 3.84 (dd, J=9.8, 3.5 Hz, 2H), 3.24-3.10 (m,
2H), 2.05-1.89 (m, 2H), 1.67-1.60 (m, 2H), 1.55 (m, 4H), 1.47 (s,
9H).
Step H: 4-(3,3-difluoropropyl)piperidin-4-ol (37J)
##STR00672##
[0850] A solution of tert-butyl
4-(3,3-difluoropropyl)-4-hydroxypiperidine-1-carboxylate (293 mg,
1.075 mmol) in 5 mL of 3.5 N HCl in dioxane was stirred at r.t. for
30 min. The reaction mixture was concentrated in vacuo to give 301
mg of the title product which was used in the next step
directly.
Step I:
[0851] To a solution of the corresponding (aryl-sulfonamido)benzoic
acid (1.05 mmol) in 15 mL of DMF was added HBTU (479 mg, 1.26
mmol), DIPEA (203 mg, 1.58 mmol) and
4-(3,3-difluoropropyl)piperidin-4-ol (226.3 mg, 1.05 mmol),
sequentially at room temperature. The reaction mixture was stirred
at room temperature for 1 hour. The mixture was poured into water
and extracted with EtOAc (50 mL) twice. The combined organic layer
was washed with brine and dried over anhy. Na.sub.2SO.sub.4. The
combined organic layer was concentrated in vacuo. The title
compound was purified by a standard method.
Compound 204
N-(4-(4-(3,3-difluoropropyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoli-
ne-8-sulfonamide
##STR00673##
[0853] .sup.1H NMR (CHLOROFORM-d) .delta.: 10.41 (s, 1H), 9.13 (dd,
J=4.2, 1.7 Hz, 1H), 8.52 (dd, J=8.4, 1.7 Hz, 1H), 8.42 (dd, J=7.3,
1.3 Hz, 1H), 8.36-8.24 (m, 1H), 7.80-7.64 (m, 2H), 7.11 (q, J=8.7
Hz, 4H), 6.06 (td, J=59.4, 55.3 Hz, 1H), 4.44 (m, 1H), 4.16-3.92
(m, 1H), 3.16-2.91 (m, 2H), 1.84 (dqt, J=19.9, 13.0, 6.6 Hz, 2H),
1.51-1.40 (m, 3H), 1.40-1.29 (m, 3H). LC-MS: m/z 490.68
(M+H).sup.+
Compound 235
N-(4-(4-(3,3-difluoropropyl)-4-hydroxypiperidine-1-carbonyl)phenyl)benzo[d-
]thiazole-4-sulfonamide
##STR00674##
[0855] .sup.1H NMR (CHLOROFORM-d) .delta.: 10.76 (s, 1H), 9.66 (s,
1H), 8.50 (dd, J=8.1, 1.0 Hz, 1H), 8.11 (dd, J=7.6, 1.0 Hz, 1H),
7.65 (t, J=7.9 Hz, 1H), 7.17 (d, J=8.7 Hz, 2H), 7.10 (d, J=8.7 Hz,
2H), 6.06 (tt, J=57.1, 4.3 Hz, 1H), 4.10 (d, J=5.3 Hz, 1H), 3.11
(dd, J=51.3, 35.5 Hz, 3H), 1.83 (dd, J=18.4, 11.9 Hz, 2H),
1.55-1.28 (m, 6H). LC-MS: m/z 496.59 (M+H).sup.+
Compound 230
N-(4-(4-(3,3-difluoropropyl)-4-hydroxypiperidine-1-carbonyl)phenyl)quinoxa-
line-5-sulfonamide
##STR00675##
[0857] .sup.1H NMR (CHLOROFORM-d) .delta.: 10.65 (s, 1H), 9.13 (dd,
J=13.1, 1.8 Hz, 2H), 8.50 (dd, J=7.4, 1.3 Hz, 1H), 8.37 (dd, J=8.4,
1.2 Hz, 1H), 8.05-7.93 (m, 1H), 7.12 (dd, J=25.5, 8.7 Hz, 4H), 6.06
(tt, J=57.1, 4.2 Hz, 1H), 4.10-3.93 (m, 1H), 3.04 (m, 3H), 1.84 (m,
2H), 1.54-1.27 (m, 6H). LC-MS: m/z 491.58 (M+H).sup.+
General Procedure 38
##STR00676##
[0858] Step A: (E)-tert-butyl
4-(3,3-difluoroprop-1-enyl)-4-hydroxypiperidine-1-carboxylate
(38B)
##STR00677##
[0860] To a solution of tert-butyl
4-(3,3-difluoroprop-1-yn-1-yl)-4-hydroxypiperidine-1-carboxylate
(280 mg, 1.016 mmol) in 30 mL of anhydrous THF was added dropwise
sodium dihydro-bis-(2-methoxyethoxy)aluminate (587 mg, 2.032 mmol,
70%) at -78.degree. C. under N.sub.2. After the addition, the
reaction mixture was stirred at -78.degree. C. under N.sub.2 for 5
h. The reaction mixture was quenched by sat. NH.sub.4Cl aq., and
the resulting mixture was extracted with EtOAc (50 mL, 30 mL). The
combined organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4 and concentrated in vacuo to afford 291 mg of
title compound. MS (ES) M+H expected 278.15. found 178.30. .sup.1H
NMR (CHLOROFORM-d) .delta.: 6.29-6.08 (m, 2H), 6.01-5.84 (m, 1H),
3.98-3.84 (m, 2H), 3.20 (t, J=11.4 Hz, 2H), 1.76-1.62 (m, 4H), 1.48
(s, 9H).
Step B: (E)-4-(3,3-difluoroprop-1-enyl)piperidin-4-ol (38C)
##STR00678##
[0862] A solution of (E)-tert-butyl
4-(3,3-difluoroprop-1-enyl)-4-hydroxypiperidine-1-carboxylate (38C)
(293 mg, 1.075 mmol) in 5 mL of 3.5 N HCl in dioxane was stirred at
r.t. for 30 min. The reaction mixture was concentrated in vacuo to
give 300 mg of the title product as a yellow liquid which was used
in the next step directly.
General Procedure 39
##STR00679## ##STR00680##
[0863] Step A: N,N'-disulfinyl-3-fluoro-1,2-diaminobenzene
(39B)
##STR00681##
[0865] To a solution of 3-fluorobenzene-1,2-diamine (7.9 g, 62.7
mmol) in 80 mL of pyridine was added dropwise SOCl.sub.2 (16 mL) at
0.degree. C. The reaction mixture was stirred at 100.degree. C. for
8 hours. The mixture was poured into water and extracted with EtOAc
(50 mL) twice. The combined organic layer was washed with brine and
dried over anhy. Na.sub.2SO.sub.4. The combined organic layer was
concentrated in vacuo. Column chromatography (15% Petroleum/EtOAc)
afforded 11.5 g of title compound.
Step B: 7-fluorobenzo[c][1,2,5]thiadiazole-4-sulfonyl chloride
(39C)
##STR00682##
[0867] A solution of N,N'-disulfinyl-3-fluoro-1,2-diaminobenzene
39B (11.5 g, 52.75 mmol) in 80 mL of chlorosulfonic acid was heated
at 110.degree. C. for 8 hours. The mixture was cooled to r.t. and
poured into water and extracted with EtOAc (50 mL) twice. The
combined organic layer was washed with brine and dried over anhy.
Na.sub.2SO.sub.4. The combined organic layer was concentrated in
vacuo. Column chromatography (15% Petroleum/EtOAc) afforded 7.1 g
of title compound. .sup.1H NMR (CHLOROFORM-d) .delta.: 8.48 (dd,
J=8.4 Hz, 4.4 Hz, 1H), 7.45 (t, J=8.4 Hz, 1H). LC-MS: m/z 253.2
(M+H).sup.+.
Step C: Ethyl
4-(7-fluorobenzo[c][1,2,5]thiadiazole-4-sulfonamido)benzoate
(39D)
##STR00683##
[0869] To a solution of ethyl 4-aminobenzoate (412 mg, 2.5 mmol) in
20 mL of DCM was added pyridine (600 mg, 7.5 mmol) and
7-fluorobenzo[c][1,2,5]thiadiazole-4-sulfonyl chloride (39C) (633
mg, 2.5 mmol). The resulting mixture was stirred at 50.degree. C.
overnight. After removal of DCM, the residue was partitioned
between water and EtOAc. The organic layer was washed with 2 N HCl,
water and brine, dried over Na.sub.2SO.sub.4 and concentrated to
give crude product 39D, which was confirmed by LCMS, and used in
the next reaction without further purification. .sup.1H NMR
(CHLOROFORM-d) .delta.: 8.33 (dd, J=8.0, 4.6 Hz, 1H), 7.85 (d,
J=8.7 Hz, 2H), 7.66 (s, 1H), 7.35-7.30 (m, 1H), 7.12 (d, J=8.7 Hz,
2H), 4.31 (q, J=7.1 Hz, 2H), 1.34 (t, J=7.1 Hz, 3H). LC-MS: m/z
382.4 (M+H).sup.+.
Step D: ethyl 4-(2,3-diamino-4-fluorophenylsulfonamido)benzoate
(39E)
##STR00684##
[0871] To a solution of the compound 39D (382 mg, 1.0 mmol) in
AcOH/H.sub.2O (8 mL/3 mL) at 70.degree. C. was added zinc powder
(975 mg, 15 mmol) and the resulting suspension was stirred at
70.degree. C. for 1 h. The solid was filtered off and washed with
EtOAc. The filtrate was partitioned between satd. NaHCO.sub.3 and
EtOAc. The organic layer was separated and washed with water and
brine, dried over anhydrous Na.sub.2SO.sub.4 and concentrated to
give crude product 39E, which was confirmed by LCMS, and used in
the next reaction without further purification. LC-MS: m/z 354.4
(M+H).sup.+.
Step E: 4-(2,3-diamino-4-fluorophenylsulfonamido)benzoic acid
(39F)
##STR00685##
[0873] To a solution of the compound 39E (350 mg, 1 mmol) in
EtOH/H.sub.2O (10 mL/3 mL) was added LiOH.H.sub.2O (200 mg, 5 mmol)
and the resulting suspension was stirred at 70.degree. C.
overnight. The solvent was concentrated and the residue was
partitioned between aqueous 2 N HCl and EtOAc. The organic layer
was separated and washed with water and brine, dried over
Na.sub.2SO.sub.4 and concentrated to give the desired crude product
39F, which was confirmed by LCMS, and used in subsequent reaction
without further purification. LC-MS: m/z 326.3 (M+H).sup.+.
Step F
[0874] To a solution of compound 39F (0.2 mmol) and in DCM (10 mL)
was added HBTU (91 mg, 0.24 mmol) and stirred at r.t. for 20 min,
then the corresponding compound 7 (0.2 mmol) and DIPEA (0.6 mmol)
were added. After stirring for 30 mins, the reaction was
partitioned between satd. Na.sub.2CO.sub.3 solution and DCM. The
organic layer was separated and washed with water and brine, dried
over Na.sub.2SO.sub.4 and concentrated, and then purified by a
standard method to give title product 39G.
Compound 256
2,3-diamino-N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl-
)-4-fluorobenzenesulfonamide
##STR00686##
[0876] .sup.1H NMR (CHLOROFORM-d) .delta.: 10.56 (s, 1H), 7.81 (dd,
J=7.9, 1.6 Hz, 1H), 7.42-7.33 (m, 2H), 7.27 (m, 3H), 7.08 (d, J=8.6
Hz, 2H), 6.99 (dd, J=9.0, 5.9 Hz, 1H), 6.46 (dd, J=9.2 Hz, 1H),
5.71 (s, 2H), 5.43 (s, 1H), 4.87 (s, 2H), 4.35 (s, 1H), 3.45 (s,
2H), 3.12 (s, 1H), 1.78-1.12 (m, 4H). LC-MS: m/z 519.70
(M+H).sup.+
Compound 254
2,3-diamino-4-fluoro-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)pheny-
l)benzenesulfonamide
##STR00687##
[0878] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.27 (d, J=8.5 Hz, 2H),
7.20 (dd, J=9.0, 5.9 Hz, 1H), 7.15 (s, 1H), 7.06 (d, J=8.5 Hz, 2H),
6.49 (t, J=9.1 Hz, 1H), 4.38 (s, 1H), 3.44 (s, 2H), 3.25 (s, 1H),
1.85 (td, J=12.9, 6.5 Hz, 1H), 1.67 (s, 4H), 1.44 (d, J=6.0 Hz,
2H), 1.00 (d, J=6.6 Hz, 6H). LC-MS: m/z 465.66 (M+H).sup.+
Step G
[0879] To a solution of the corresponding compound 39G (0.9 mmol)
in ethanol/water (30 mL/4 mL) was added 1,4-dioxane-2,3-diol (130
mg, 1.08 mmol) and the resulting suspension was stirred at
30.degree. C. overnight. The solvent was removed in vacuo and the
residue was partitioned between water and EtOAc. The organic layer
was separated and washed with water and brine, dried over
Na.sub.2SO.sub.4 and concentrated, and then purified by a standard
method to give title product 39H.
Compound 444
8-fluoro-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)quinoxalin-
e-5-sulfonamide
##STR00688##
[0881] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.14 (d, J=8.8 Hz, 2H),
8.46 (dd, J=8.3, 5.2 Hz, 1H), 7.88 (s, 1H), 7.54 (t, J=8.5 Hz, 1H),
7.20 (d, J=8.1 Hz, 2H), 7.07 (d, J=8.1 Hz, 2H), 4.31 (s, 1H), 3.29
(s, 3H), 1.82 (td, J=12.9, 6.5 Hz, 1H), 1.57 (s, 4H), 1.41 (d,
J=6.0 Hz, 2H), 0.98 (d, J=6.6 Hz, 6H). LC-MS: m/z 487.68
(M+H).sup.+
Compound 234
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-8-fluoroqu-
inoxaline-5-sulfonamide
##STR00689##
[0883] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.15 (d, J=9.5 Hz, 2H),
8.47 (dd, J=8.3, 5.1 Hz, 1H), 7.87 (s, 1H), 7.53 (dd, J=17.0, 8.5
Hz, 2H), 7.40 (d, J=7.6 Hz, 1H), 7.31 (d, J=7.8 Hz, 1H), 7.25 (d,
J=7.2 Hz, 3H), 7.09 (d, J=7.2 Hz, 2H), 4.61 (s, 1H), 3.58 (m, 2H),
3.32 (m, 1H), 2.38-2.01 (m, 4H). LC-MS: m/z 541.79 (M+H).sup.+
General Procedure 40
Compound 202
##STR00690##
[0884] Step A:
[0885] To a solution of
2-amino-6-fluoro-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)b-
enzo[d]thiazole-4-sulfonamide (Compound 145) (200 mg, 0.4 mmol) in
THF (5 mL) was added isoamyl nitrite (94 mg, 0.8 mmol). The
reaction mixture was stirred at 70.degree. C. for 3 hrs under
nitrogen atmosphere. After completion of the reaction (monitored by
TLC), the reaction mixture was concentrated in vacuo. The residue
was dissolved in water, and extracted with ethyl acetate
(3.times.50 mL). Combined organic extracts were washed with brine
(20 mL), dried over anhydrous sodium sulfate, filtered and
concentrated under reduced pressure to obtain the crude product,
which was purified by a standard method.
Compound 446:
6-fluoro-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)benzo[d]t-
hiazole-4-sulfonamide
##STR00691##
[0887] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.26 (s, 1H), 7.89 (s,
1H), 7.88-7.84 (m, 2H), 7.22 (d, J=8.4 Hz, 2H), 7.11 (d, J=8.5 Hz,
2H), 4.33 (s, 1H), 3.30 (s, 3H), 1.90-1.79 (m, 1H), 1.52 (d, J=51.2
Hz, 4H), 1.42 (d, J=6.0 Hz, 2H), 0.98 (d, J=6.6 Hz, 6H). LC-MS: m/z
492.68 (M+H).sup.+
Compound 401
General Procedure 39, Started from Compound 154
N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-6-fluorobe-
nzo[d]thiazole-4-sulfonamide
##STR00692##
[0889] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.26 (s, 1H), 7.89 (s,
1H), 7.87 (d, J=7.6 Hz, 2H), 7.52 (dd, J=7.8, 1.7 Hz, 1H), 7.40
(dd, J=7.7, 1.6 Hz, 1H), 7.34-7.29 (m, 1H), 7.25 (dd, J=10.0, 5.0
Hz, 3H), 7.13 (d, J=8.5 Hz, 2H), 4.64 (s, 1H), 3.60 (s, 2H), 3.31
(s, 1H), 2.39-1.99 (m, 4H). LC-MS: m/z 546.7 (M+H).sup.+
General Procedure 42
##STR00693##
[0890] Step A: 6-chloroquinolin-2-amine (42B)
##STR00694##
[0892] A mixture of 2,6-dichloroquinoline (500 mg, 2.5 mmol),
acetamide (3 g, 50.8 mmol) and K.sub.2CO.sub.3 (1.75 g, 12.7 mmol)
in a round bottom flask was stirred at 200.degree. C. for 1.5 hours
until TLC indicated that 2,6-dichloroquinoline was consumed. The
resulting mixture was cooled to room temperature, and was
partitioned between dichloromethane and H.sub.2O, the organic layer
was dried over anhydrous Na.sub.2SO.sub.4, concentrated, and the
residue was purified by a standard method to give 440 mg of the
title compound. LCMS (m/z): 179.7 (M+1).sup.+
Step B: 2-amino-6-chloroquinoline-8-sulfonyl chloride (42C)
##STR00695##
[0894] 6-chloroquinolin-2-amine (350 mg) was added to 5 mL of
HClSO.sub.3 at 0.degree. C. in portions, and then the mixture was
stirred at 100.degree. C. for 1 hour. The resulting mixture was
cooled to room temperature, then it was poured with caution into
crushed ice and H.sub.2O, and the resulting mixture was extracted
with dichloromethane. The combined organic layers were dried over
anhydrous Na.sub.2SO.sub.4, concentrated to provide the crude title
compound which was used in the next step without further
purification. LCMS (m/z): 278.1 (M+1).sup.+
Step C: 4-(2-amino-6-chloroquinoline-8-sulfonamido)benzoic acid
(42D)
##STR00696##
[0896] A mixture of 2-amino-6-chloroquinoline-8-sulfonyl chloride
(500 mg, 1.8 mmol), 4-aminobenzoic acid (300 mg, 2.2 mmol) and
pyridine (1 mL) in 10 mL of THF was stirred at 30.degree. C.
overnight, when LCMS indicated that the reaction was complete. The
resulting mixture was concentrated, and the residue was purified by
a standard method to yield the title compound. LCMS (m/z): 378.8
(M+1).sup.+
Step D: 4-(2-aminoquinoline-8-sulfonamido)benzoic acid (42E)
##STR00697##
[0898] A mixture of
4-(2-amino-6-chloroquinoline-8-sulfonamido)benzoic acid (150 mg,
0.44 mmol), 10% Pd/C (20 mg) in methanol (5 mL) was stirred under
H.sub.2 atmosphere overnight when LCMS indicated that the reaction
was complete. The resulting mixture was filtered, and the filtrate
was concentrated to yield 100 mg of title compound, which was used
in the next step without further purification. LCMS (m/z): 344.6
(M+1).sup.+
Step E: Compound 402:
2-amino-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)quinoline--
8-sulfonamide
##STR00698##
[0900] To a mixture of 4-isobutylpiperidin-4-ol (70 mg, 0.44 mmol),
4-(2-aminoquinoline-8-sulfonamido)benzoic acid (100 mg, 0.44 mmol),
and HBTU (134 mg, 0.53 mmol) in DCM (5 mL) was added DIPEA (1 mL)
dropwise at room temperature, and then the mixture was stirred at
room temperature for 1 hour. The resulting mixture was
concentrated, purified by a standard method to yield the title
compound. .sup.1H NMR (CHLOROFORM-d) .delta.: 8.10-8.20 (m, 1H),
7.89 (d, J=9.1 Hz, 1H), 7.69-7.82 (m, 1H), 7.06-7.26 (m, 5H), 6.80
(d, J=9.1 Hz, 1H), 5.41 (s, 2H), 4.33 (br. s., 1H), 3.41-3.19 (m.,
3H), 1.82 (dt, J=12.9, 6.4 Hz, 1H), 1.63-1.46 (m, 4H), 1.40 (d,
J=5.9 Hz, 2H), 0.97 (d, J=6.7 Hz, 6H). LCMS (m/z): 483.7
(M+1).sup.+
General Procedure 43
##STR00699## ##STR00700##
[0901] Step A: Benzyl
4-hydroxy-4-(2-methoxy-2-oxoethyl)piperidine-1-carboxylate
(43B)
##STR00701##
[0903] To a round-bottom flask containing Zn dust (2.3 g, 36 mmol)
was added dibromoethane (585 mg, 3.11 mmol). The resulting mixture
was warmed to 60.degree. C. and allowed to cool for 1 min. This
heating-cooling process was repeated three more times, and then the
flask was allowed to cool for an additional 3 min.
Trimethylsilylchloride (456 mg, 4.2 mmol) in THF (5 mL) was added,
followed by addition of ethyl-2-bromoacetate (2 g, 12 mmol) in THF
(8 mL). The reaction was warmed to 60.degree. C. for an additional
two hours until a dark grey suspension was obtained. The mixture
was cooled to room temperature; benzyl
4-oxopiperidine-1-carboxylate (1.9 g, 8.2 mmol) in THF (20 mL) was
then added. The resulting mixture was stirred for 3 days, and then
quenched with water. The solid was filtered off, and the aqueous
was extracted with ethyl acetate. The combined organic layers were
washed with brine and dried over Na.sub.2SO.sub.4. Purification by
a standard method gave the desired product. .sup.1H NMR
(CHLOROFORM-d) .delta.: 7.33-7.43 (m, 5H), 5.14 (s, 2H), 3.89-4.05
(m, 2H), 3.68-3.79 (m, 3H), 3.22-3.36 (m, 2H), 2.49 (s, 2H), 2.19
(s, 1H), 1.71 (d, J=12.6 Hz, 2H), 1.53 (dd, J=12.5, 4.2 Hz, 2H).
LCMS (m/z): 308.1 (M+1).sup.+
Step B: benzyl
4-(benzyloxymethoxy)-4-(2-methoxy-2-oxoethyl)piperidine-1-carboxylate
(43C)
##STR00702##
[0905] A solution of compound 43B (0.5 g, 1.63 mmol) and
diisopropylethylamine (1.26 g, 9.8 mmol) in CH.sub.2Cl.sub.2 (10
mL) was treated with benzyl chloromethylether (636 mg 4.1 mmol) and
stirred at room temperature for 16 h. Purification a standard
method gave the desired product. .sup.1H NMR (CHLOROFORM-d)
.delta.: 7.30-7.44 (m, 9H), 5.15 (s, 2H), 4.92 (s, 2H), 4.69 (s,
2H), 3.91 (br. s., 2H), 3.65 (s, 3H), 3.29 (br. s., 2H), 2.63 (s,
2H), 2.20 (s, 1H), 2.02 (d, J=13.7 Hz, 2H), 1.69 (ddd, J=14.1,
11.7, 4.6 Hz, 3H). LC-MS: m/z 428.6 (M+H).sup.+
Step C: benzyl
4-(benzyloxymethoxy)-4-(2-hydroxy-2-methylpropyl)piperidine-1-carboxylate
(43D)
##STR00703##
[0907] To a solution of benzyl
4-(benzyloxymethoxy)-4-(2-methoxy-2-oxoethyl)
piperidine-1-carboxylate (500 mg, 1.17 mmol) in anhydrous THF (15
mL) was added dropwise a solution of methylmagnesium bromide (2 mL,
6 mmol) in diethyl ether at 0.degree. C. After the addition was
complete, the mixture was stirred at room temperature for 1.5 h,
and then cooled again in an ice bath. Saturated ammonium chloride
solution was added dropwise. The resulting precipitate was
dissolved by the addition of water (30 mL). The mixture was
extracted three times with EtOAc. The combined organic layers were
dried over Na.sub.2SO.sub.4 and evaporated to get the crude product
which was used directly for next step without further purification.
LCMS (m/z): 428.2 (M+1).sup.+
Step D: benzyl
4-(benzyloxymethoxy)-4-(2-fluoro-2-methylpropyl)piperidine-1-carboxylate
(43E)
##STR00704##
[0909] To a solution of
(4-hydroxy-4-(isothiazol-4-yl)piperidin-1-yl)(4-((quinolin-8-ylsulfonyl)m-
ethyl)phenyl)methanone (500 mg, 1.17 mmol) in DCM (10 mL) was added
dropwise DAST (282 mg, 1.75 mmol) while cooling on an ice-water
bath. The mixture was allowed to warm up from 0.degree. C. to room
temperature, and was stirred for 16 hrs. The reaction was quenched
by dropwise addition of saturated ammonium chloride solution, then
was washed with saturated NaHCO.sub.3 and extracted with EtOAc. The
organic layer was washed with brine, and then concentrated to get
the crude product. Purification by a standard method gave the
desired product. .sup.1H NMR (CHLOROFORM-d) .delta.: 7.30-7.59 (m,
10H), 5.15 (s, 2H), 4.85 (s, 2H), 4.71 (s, 2H), 3.83 (br. s., 2H),
3.38 (br. s., 2H), 1.91-2.05 (m, 3H), 1.59-1.70 (m, 2H), 1.47 (s,
3H), 1.42 (s, 3H), 1.36 (s, 1H).
Step E: 4-(2-fluoro-2-methylpropyl)piperidin-4-ol (43F)
##STR00705##
[0911] To a round bottom flask was added
benzyl-4-(benzyloxymethoxy)-4-(2-fluoro-2-methylpropyl)piperidine-1-carbo-
xylate (50 mg, 0.12 mmol), Pd/C (20 mg), and methanol (5 mL). The
mixture was stirred at room temperature for 16 hrs under hydrogen
atmosphere. The reaction mixture was filtered to get a solution,
which was concentrated to give the desired product. The crude
product was used directly for the next step. LC-MS: m/z 176.2
(M+H).sup.+
Step F: Compound 403:
N-(4-(4-(2-fluoro-2-methylpropyl)-4-hydroxypiperidine-1-carbonyl)phenyl)b-
enzo[d]thiazole-4-sulfonamide
##STR00706##
[0913] To a round-bottom flask was added with
4-(2-fluoro-2-methylpropyl) piperidin-4-ol (25 mg 0.143 mmol),
4-(benzo[d]thiazole-4-sulfonamido)benzoic acid (47 mg, 0.143 mmol),
DIPEA (110 mg, 0.85 mmol), HATU (54 mg, 0.143 mmol), and DCM (5
mL). The mixture was stirred at r.t. for 16 hours. After washing
with satd. NaHCO.sub.3, brine, the combined organic layer was dried
over anhy. Na.sub.2SO.sub.4 and concentrated in vacuo. Purification
by a standard method gave the desired compound. .sup.1H NMR
(CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.19 (dd, J=8.1, 0.8 Hz, 1H),
8.10 (dd, J=7.5, 1.1 Hz, 1H), 7.93 (s, 1H), 7.54 (t, J=7.9 Hz, 1H),
7.16-7.23 (m, J=8.3 Hz, 2H), 7.05-7.15 (m, J=8.3 Hz, 2H), 4.19-4.47
(m, 1H), 3.46 (d, J=15.6 Hz, 1H), 3.35 (d, J=15.3 Hz, 2H), 1.89 (s,
3H), 1.84 (s, 3H), 1.49-1.55 (m, 3H), 1.46 (s, 3H). LC-MS: m/z
492.65 (M+H).sup.+
General Procedure 44
##STR00707##
[0914] Step A: tert-butyl 4-acetoxy-4-allylpiperidine-1-carboxylate
(44B)
##STR00708##
[0916] A solution of tert-butyl
4-allyl-4-hydroxypiperidine-1-carboxylate (3.7 g, 14.51 mmol) in
dichloromethane (20 mL) was treated with dimethylaminopyridine (1.8
g, 14.51 mmol), acetic anhydride (4.1 mL, 43.53 mmol) and
triethylamine (6.1 mL, 43.53 mmol), and was stirred overnight at
20.degree. C. The solvent was removed under reduced pressure and
the residue was partitioned between water and ethyl acetate. The
aqueous layer was extracted twice with ethyl acetate. Combined
organic extracts were washed with water, dried (Na.sub.2SO.sub.4)
and filtered. The filtrate was concentrated under reduced pressure,
and purified by a standard method to provide the title compound 44B
(3.4 g). LC-MS: m/z 284.4 (M+H).sup.+
Step B: (E)-tert-butyl
4-acetoxy-4-(4,4,4-trifluorobut-1-enyl)piperidine-1-carboxylate
(44C)
##STR00709##
[0918] A flame-dried vial equipped with a magnetic stir bar was
charged with Togni reagent (2.0 g, 7.0 mmol) and CuI (34 mg, 0.35
mmol), and was sealed with a septum. The vial was evacuated and
backfilled with N.sub.2 for three times. MeOH (8 mL) and tert-butyl
4-acetoxy-4-allylpiperidine-1-carboxylate (4.5 g, 14 mmol) were
then added via syringe. The vial was kept at 80.degree. C. for 2 h.
The reaction mixture was concentrated in vacuo and the crude
residue was purified by a standard method to afford the product
(2.1 g). NMR (400 MHz, CHLOROFORM-d) .delta.: 1.47 (s, 9H),
1.66-1.77 (m, 2H), 2.00-2.07 (m, 3H), 2.22 (d, J=13.43 Hz, 2H),
2.85 (qdd, J=10.61, 10.61, 10.61, 7.25, 1.21 Hz, 2H), 3.11 (t,
J=11.82 Hz, 2H), 3.81 (br. s., 2H), 5.58 (dt, J=15.98, 7.19 Hz,
1H), 6.05 (d, J=16.12 Hz, 1H).
Step C: (E)-tert-butyl
4-hydroxy-4-(4,4,4-trifluorobut-1-enyl)piperidine-1-carboxylate
(44D)
##STR00710##
[0920] To a mixture of (E)-tert-butyl
4-acetoxy-4-(4,4,4-trifluorobut-1-enyl)piperidine-1-carboxylate
(200 mg, 0.57 mmol) in methanol (5 mL) was added 2M NaOH (2 mL, 4
mmol), the mixture was held stirring at r.t. for 16 hrs, when TLC
(20% EA/PE) indicated completion of the reaction. The mixture was
concentrated in vacuo, the residue was diluted with brine and
extracted with EtOAc, and the organic layer was concentrated in
vacuo to get the crude product, which was used directly for the
next step.
Step D: (E)-4-(4,4,4-trifluorobut-1-enyl)piperidin-4-ol (44E)
##STR00711##
[0922] A solution of (E)-tert-butyl
4-hydroxy-4-(4,4,4-trifluorobut-1-enyl)piperidine-1-carboxylate
(200 mg, 0.65 mmol) in 3M HCl/1,4-dioxane (5 mL) was stirred at
room temperature for 2 hours. The solution was evaporated to
dryness under reduced pressure to give the product which was used
in the next step without further purification. LC-MS: m/z 210.2
(M+H).sup.+.
Step E: Compound 404:
(E)-N-(4-(4-hydroxy-4-(4,4,4-trifluorobut-1-enyl)piperidine-1-carbonyl)ph-
enyl)benzo[d]thiazole-4-sulfonamide
##STR00712##
[0924] To a round-bottom flask was added with
(E)-4-(4,4,4-trifluorobut-1-enyl)piperidin-4-ol (50 mg 0.24 mmol),
4-(benzo[d]thiazole-4-sulfonamido)benzoic acid (80 mg, 0.24 mmol),
DIPEA (155 mg, 1.2 mmol), HATU (110 mg, 0.29 mmol), and DCM (5 mL).
The mixture was stirred at r.t. for 16 hours. After washing with
brine, the combined organic layer was dried over anhy.
Na.sub.2SO.sub.4 and concentrated in vacuo. Purification by a
standard method gave the desired compound. .sup.1H NMR
(CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.19 (d, J=8.1 Hz, 1H), 8.10
(d, J=7.5 Hz, 1H), 7.99 (s, 1H), 7.54 (t, J=7.8 Hz, 1H), 7.17-7.24
(m, J=8.3 Hz, 2H), 7.08-7.15 (m, J=8.1 Hz, 2H), 5.78-5.94 (m, 1H),
5.64-5.76 (m, 1H), 4.28-4.47 (m, 1H), 3.51 (s, 1H), 3.32-3.48 (m,
1H), 3.27 (br. s., 1H), 2.84 (dd, J=10.5, 7.0 Hz, 1H), 1.66 (br.
s., 4H), 1.46 (d, J=9.7 Hz, 2H). LC-MS: m/z 526.7 (M+H).sup.+
General Procedure 45
##STR00713##
[0925] Step A: tert-butyl
4-((benzyloxy)methoxy)-4-(2-methylallyl)piperidine-1-carboxylate
(45B)
##STR00714##
[0927] To a solution of tert-butyl
4-((benzyloxy)methoxy)-4-(2-methylallyl)piperidine-1-carboxylate
(2.55 g, 10.0 mmol) in dichloromethane (50 mL) was added BOMCl
(3.12 g, 20.0 mmol) and TEA (3.03 g, 30.0 mmol), and the mixture
was stirred at 45.degree. C. for 16 hrs. The solvent was then
removed and the residue was purified by a standard method to obtain
the desired product (3 g). LC-MS: m/z 376.6 (M+H).sup.+
Step B: tert-butyl
4-((benzyloxy)methoxy)-4-(3-hydroxy-2-methylpropyl)piperidine-1-carboxyla-
te (45C)
##STR00715##
[0929] To a solution of tert-butyl
4-((benzyloxy)methoxy)-4-(2-methylallyl)piperidine-1-carboxylate
(3.05 g, 8.1 mmol) in THF (50 mL) was added BH.sub.3 solution in
THF (32 mL, 1 mol/L, 32.4 mmol), and the mixture was stirred at
room temperature for 16 hrs. Then 30% H.sub.2O.sub.2 solution (30
mL) and 10% sodium hydroxide solution (50 mL) were added slowly to
the mixture, and the mixture was stirred for another 2 hrs. The
mixture was then treated with water (10 mL) and extracted with
EtOAc (3.times.20 mL). The combined organic extracts were dried
over Na.sub.2SO.sub.4 and the solvent was removed in vacuo. The
residue was purified by a standard method to give the product (1.97
g). LC-MS: m/z 394.5 (M+H).sup.+
Step C:
tert-butyl-4-((benzyloxy)methoxy)-4-(2-methyl-3-oxopropyl)piperidi-
ne-1-carboxylate (45D)
##STR00716##
[0931] A mixture of
tert-butyl-4-((benzyloxy)methoxy)-4-(3-hydroxy-2-methylpropyl)piperidine--
1-carboxylate (1.97 g, 5.0 mmol) and Dess-martin reagent (3.18 g)
was stirred in dichloromethane (60 mL) at r.t for 16 hrs. The
reaction mixture was quenched by adding 25% sodium bicarbonate
solution (100 mL), then the mixture was extracted by EtOAc (60
mL.times.2). The organic phase was combined and concentrated to
give a residue, which was further purified by a standard method to
give the product (0.88 g). LC-MS: m/z 392.5 (M+H).sup.+
Step D: tert-butyl
4-((benzyloxy)methoxy)-4-(3,3-difluoro-2-methylpropyl)piperidine-1-carbox-
ylate (45E)
##STR00717##
[0933] A mixture of tert-butyl
4-((benzyloxy)methoxy)-4-(2-methyl-3-oxopropyl)piperidine-1-carboxylate
(0.88 g, 2.25 mmol) and DAST (0.8 g) in DCM (5 mL) was stirred at
r.t for 20 hrs. The reaction mixture was quenched by adding 25%
sodium bicarbonate solution (20 mL). The mixture was then extracted
with DCM twice. The organic phase was combined and concentrated to
give a residue, which was further purified by a standard method to
obtain the title compound (0.33 g). LC-MS: m/z 414.5
(M+H).sup.+
Step E: 4-(3,3-difluoro-2-methylpropyl)piperidin-4-ol (45F)
##STR00718##
[0935] A mixture of tert-butyl
4-((benzyloxy)methoxy)-4-(3,3-difluoro-2-methylpropyl)piperidine-1-carbox-
ylate (0.33 g) and 5 M HCl in MeOH (4 mL) was stirred in methanol
(15 mL) for 3 hrs. The solvent was then removed under vacuum to
obtain crude product (4-(3,3-difluoro-2-methylpropyl)piperidin-4-ol
(0.11 g). LC-MS: m/z 194.2 (M+H).sup.+
Step F: Compound 405:
N-(4-(4-(3,3-difluoro-2-methylpropyl)-4-hydroxypiperidine-1-carbonyl)phen-
yl)benzo[d]thiazole-4-sulfonamide
##STR00719##
[0937] To a round-bottom flask was added
4-(3,3-difluoro-2-methylpropyl)piperidin-4-ol (110 mg 0.57 mmol),
4-(benzo[d]thiazole-4-sulfonamido)benzoic acid (190 mg, 0.57 mmol),
DIPEA (367 mg, 2.8 mmol), HATU (261 mg, 0.69 mmol), and DCM (5 mL).
The mixture was stirred at r.t. for 16 hours. After washing with
brine, the combined organic layer was dried over anhy.
Na.sub.2SO.sub.4 and concentrated in vacuo. Purification by a
standard method gave the desired compound. .sup.1H NMR
(CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.20 (d, J=8.1 Hz, 1H), 8.10
(d, J=7.5 Hz, 1H), 7.94 (s, 1H), 7.55 (t, J=7.9 Hz, 1H), 7.20 (d,
J=8.5 Hz, 2H), 7.12 (d, J=8.6 Hz, 2H), 5.90-5.61 (m, 1H), 4.36 (s,
1H), 3.57-3.42 (m, 1H), 3.21 (s, 2H), 2.24 (d, J=7.6 Hz, 1H), 2.05
(s, 1H), 1.86-1.77 (m, 2H), 1.36 (dd, J=14.8, 6.3 Hz, 4H), 1.10 (d,
J=7.0 Hz, 3H). LC-MS: m/z 510.5 (M+H).sup.+
General Procedure 46
##STR00720##
[0938] Step A: Benzo[d]thiazole-4-sulfonyl chloride (46B)
##STR00721##
[0940] Benzo[d]thiazole (1 g, 7.45 mol) was added dropwise to
chlorosulfonic acid (5.5 mmol) at 0.degree. C. After the addition
was complete, the mixture was stirred at room temperature for 0.5 h
and then heated at 105.degree. C. and stirred overnight. The
resulting mixture was cooled to -10.degree. C. and quenched by
pouring on crushed ice slowly. The resulting mixture was extracted
with EtOAc (100 mL.times.2). The combined organic phase was washed
with brine, dried over anhy. Na.sub.2SO.sub.4 and concentrated in
vacuo. Column chromatography (15% PE/EtOAc) afforded 218 mg of
title compound. .sup.1H NMR (CHLOROFORM-d) .delta.: 9.41 (s, 1H),
8.41 (dd, J=8.1, 1.0 Hz, 1H), 8.29 (dd, J=7.7, 1.1 Hz, 1H), 7.68
(t, J=7.9 Hz, 1H). LC-MS: m/z 234.7 (M+H).sup.+
Step B: 4-(benzo[d]thiazole-4-sulfonamido)benzoic acid (46C)
##STR00722##
[0942] To a solution of 4-aminobenzoic acid (10 g, 73 mmol) in DCM
(100 mL) was added pyridine (29 g, 365 mmol), then aryl-sulfonyl
chloride (20 g, 88 mmol). The resulting mixture was heated at
40.degree. C. for 16 hrs, when LC-MS showed that the reaction was
complete. The mixture was then filtered, and the filter cake was
washed with Et.sub.2O, and dried to afford title product (23 g).
.sup.1H NMR (DMSO-d.sub.6) .delta.: 12.56 (br. s., 1H), 11.05 (s,
1H), 9.63-9.68 (m, 1H), 8.51 (dd, J=8.1, 1.1 Hz, 1H), 8.12-8.18 (m,
1H), 7.70 (d, J=8.6 Hz, 2H), 7.64-7.69 (m, 1H), 7.11-7.20 (m, 2H).
LC-MS: m/z 335.2 (M+H).sup.+
Step C: 4-(2-amino-3-mercaptophenylsulfonamido)benzoic acid
(46D)
##STR00723##
[0944] To a solution of 4-(benzo[d]thiazole-4-sulfonamido)benzoic
acid (500 mg, 1.5 mmol) in 6 mL of EtOH was added hydrazine hydrate
(479 mg, 15 mmol) at r.t. The reaction mixture was then stirred at
130.degree. C. in microwave for 1.5 h. The resulting mixture was
then cooled, and partitioned between water and EtOAc. The organic
phase was washed with brine, dried over anhy. Na.sub.2SO.sub.4 and
concentrated in vacuo to afford the title compound (449.0 mg).
LC-MS: m/z 323.4 (M+H).sup.+
Step D: 4-(2-aminobenzo[d]thiazole-4-sulfonamido)benzoic acid
(46E)
##STR00724##
[0946] To a solution of
4-(2-amino-3-mercaptophenylsulfonamido)benzoic acid (671 mg, 2.07
mmol) in THF (15 mL) was added cyanic bromide (439.1 mg, 4.14 mmol)
at r.t. The reaction mixture was stirred at 80.degree. C. for 8 h.
The resulting mixture was then cooled, and partitioned between
water and EtOAc. The organic phase was washed with brine, dried
over anhy. Na.sub.2SO.sub.4 and concentrated in vacuo to afford the
title compound (730 mg). LC-MS: m/z 348.7 (M+H).sup.4
Step E: Same procedure as General Procedure 2, Step C
Compound 406:
2-amino-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)benzo[d]th-
iazole-4-sulfonamide
##STR00725##
[0948] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.93 (s, 1H), 7.82 (dd,
J=7.8, 1.0 Hz, 1H), 7.75 (dd, J=7.9, 1.0 Hz, 1H), 7.23 (d, J=8.5
Hz, 2H), 7.16 (t, J=7.6 Hz, 1H), 7.13 (d, J=8.6 Hz, 2H), 5.71 (s,
2H), 4.36 (s, 1H), 3.47-3.19 (m, 3H), 1.84 (dt, J=13.0, 6.4 Hz,
1H), 1.67 (s, 2H), 1.51 (s, 2H), 1.42 (d, J=6.0 Hz, 2H), 0.99 (d,
J=6.6 Hz, 6H). LC-MS: m/z 489.70 (M+H).sup.+
Compound 407:
2-amino-N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)be-
nzo[d]thiazole-4-sulfonamide
##STR00726##
[0950] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.81 (d, J=7.9 Hz, 1H),
7.76 (dd, J=16.1, 7.8 Hz, 2H), 7.38 (d, J=7.8 Hz, 1H), 7.33 (t,
J=7.6 Hz, 1H), 7.30-7.19 (m, 5H), 7.07 (t, J=7.8 Hz, 1H), 4.51 (d,
J=13.9 Hz, 1H), 3.52 (d, J=16.0 Hz, 2H), 2.84-2.72 (m, 1H),
2.68-2.56 (m, 1H), 1.72 (d, J=18.4 Hz, 1H), 1.56 (d, J=15.3 Hz,
1H), 1.34 (d, J=14.7 Hz, 1H). LC-MS: m/z 543.67 (M+H).sup.+
General Procedure 47
##STR00727##
[0951] Step A:
[0952] A solution of compound 47A (1.23 mol) in MeCN (10 mL) was
mixed with water (5 mL), CuCI (243 mg, 2.46 mmol), NaCl (500 mg)
and 18-crown-6 (0.5 mL). A solution of tert-butyl-nitrite (165 mg)
was then added dropwise with stirring, the solution was heated at
reflux for 15 hrs. Then the resulting mixture was poured into water
(20 mL), the aqueous layer was extracted with EtOAc (3.times.50
mL). The combined organic layers were washed with brine, dried over
Na.sub.2SO.sub.4 and evaporated to get the title compound. The
crude product was used in the next step without further
purification.
Step B:
[0953] To a solution of compound 47B (0.6 mmol) in THF (10 mL) was
added 25% MeNH.sub.2 in water (3 mL) dropwise. After the addition
was complete, the reaction mixture was stirred at room temperature
overnight. The crude product was filtered off, washed with
methanol, then dried thoroughly and was then purified by a standard
method to give the desired product.
Compound 408:
N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)-2-(methylamino)be-
nzo[d]thiazole-4-sulfonamide
##STR00728##
[0955] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.33 (br. s., 1H),
7.77-7.84 (m, 1H), 7.70-7.77 (m, 1H), 7.22 (d, J=8.3 Hz, 2H), 7.13
(d, J=8.6 Hz, 2H), 7.07-7.11 (m, 1H), 6.25 (br. s., 1H), 4.35 (br.
s., 1H), 3.44 (br. s., 1H), 3.36 (br. s., 1H), 3.22 (br. s., 1H),
3.13 (s, 3H), 1.83 (dd, J=12.9, 6.4 Hz, 2H), 1.65 (br. s., 2H),
1.49 (br. s., 1H), 1.41 (d, J=5.9 Hz, 2H), 0.98 (d, J=6.7 Hz, 6H).
LC-MS: m/z 503.6 (M+H).sup.+
Compound 409:
2-chloro-N-(4-(4-(2-chlorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)b-
enzo[d]thiazole-4-sulfonamide
##STR00729##
[0957] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.25 (br. s., 1H), 7.82
(d, J=7.8 Hz, 1H), 7.75 (d, J=8.1 Hz, 1H), 7.52 (dd, J=7.7, 1.7 Hz,
1H), 7.40 (dd, J=7.7, 1.5 Hz, 1H), 7.29-7.33 (m, 1H), 7.23-7.28 (m,
3H), 7.10-7.19 (m, 3H), 6.12 (br. s., 1H), 4.62 (br. s., 1H), 3.62
(br. s., 1H), 3.52 (br. s., 1H), 3.32 (br. s., 1H), 3.20 (s, 3H),
2.92 (s, 1H), 2.09 (br. s., 2H), 1.84 (br. s., 2H). LC-MS: m/z
558.1 (M+H).sup.+
General Procedure 48
##STR00730##
[0958] Step A:
[0959] To a solution of the corresponding Aryl Bromide (1.0 eq.) in
anhydrous THF was added a solution of n-BuLi in THF (1.05 eq.)
dropwise at -78.degree. C. After the addition, the mixture was
stirred at -78.degree. C. for about 0.5 hour. Then a solution of
Cbz-4-piperidone in THF was added dropwise via a syringe at
-78.degree. C. After the addition was complete, the resulting
mixture was stirred at -78.degree. C. under N.sub.2 for 2 h, and
then allowed to warm to r.t. The reaction mixture was quenched by
addition of satd. NH.sub.4Cl solution, and the resulting mixture
was extracted with EtOAc (50 mL, 30 mL). The combined organic phase
was washed with brine, dried over anhydrous Na.sub.2SO.sub.4 and
concentrated in vacuo. The residue was purified a standard method
to afford compound 48B, which was confirmed by LCMS.
Step B:
[0960] To a round bottom flask was added the corresponding compound
48B (0.2 mmol), Pd/C (20 mg), and methanol (5 mL). The mixture was
stirred at room temperature for 16 hrs under hydrogen atmosphere.
The reaction mixture was filtered, and the resulting solution was
concentrated to give the desired product 48C. The crude product was
used directly for the next step without further purification.
Step C:
[0961] To a round-bottomed flask was added compound 48C (0.1 mmol,
1 eq.), DMF (5 mL), DIPEA (0.3 mmol, 3.0 eq.), HBTU (0.12 mmol, 1.2
eq.), and 48E (0.1 mmol, 1 eq.) sequentially. The reaction mixture
was stirred at room temperature overnight or until TLC indicated
that s.m. was consumed. The mixture was diluted with brine,
extracted with ethyl acetate, the organic layer was dried with
anhydrous Na.sub.2SO.sub.4, filtered, and filtrate was
concentrated. The desired product 48D was purified by a method.
Compound 410:
N-[4-[4-hydroxy-4-(1H-pyrazol-4-yl)piperidine-1-carbonyl]phenyl]benzothia-
zole-4-sulfonamide
##STR00731##
[0963] .sup.1H NMR (CHLOROFORM-d) .delta.: 12.57 (s, 1H), 10.76 (s,
1H), 9.66 (s, 1H), 8.50 (dd, J=8.1, 1.0 Hz, 1H), 8.11 (dd, J=7.6,
1.0 Hz, 1H), 7.65 (t, J=7.9 Hz, 1H), 7.58 (s, 1H), 7.43 (s, 1H),
7.20 (d, J=8.6 Hz, 2H), 7.12 (t, J=9.8 Hz, 2H), 4.90 (s, 1H), 4.07
(s, 1H), 3.21 (s, 3H), 1.73 (s, 4H). LC-MS: m/z 484.7
(M+H).sup.+
Compound 411:
N-[4-[4-hydroxy-4-(1-methylpyrazol-4-yl)piperidine-1-carbonyl]phenyl]benz-
othiazole-4-sulfonamide
##STR00732##
[0965] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.23-8.16
(m, 1H), 8.10 (dd, J=7.5, 0.9 Hz, 1H), 7.93 (s, 1H), 7.55 (t, J=7.9
Hz, 1H), 7.41 (d, J=2.0 Hz, 1H), 7.22 (d, J=8.5 Hz, 2H), 7.13 (d,
J=8.6 Hz, 2H), 6.10 (d, J=2.0 Hz, 1H), 4.50 (s, 1H), 4.10 (s, 3H),
3.59 (s, 1H), 3.40 (m, 2H), 1.99 (s, 2H), 1.87 (s, 2H). LC-MS: m/z
498.7 (M+H).sup.+
Compounds 412
##STR00733##
[0967] .sup.1H NMR (METHANOL-d.sub.4) .delta.: 9.47 (s, 1H), 8.29
(d, J=7.8 Hz, 1H), 8.11 (d, J=7.5 Hz, 1H), 7.54 (t, J=7.9 Hz, 1H),
7.29-7.37 (m, 1H), 7.12-7.26 (m, 4H), 6.10-6.21 (m, 1H), 4.27-4.48
(m, 1H), 4.03 (s, 3H), 3.39-3.60 (m, 2H), 1.81-2.11 (m, 5H). LC-MS:
m/z 498.7 (M+H).sup.+
[0968] The following compounds depicted in Table 4 below were
prepared using the same general procedure as described above.
TABLE-US-00004 TABLE 4 Compound LC-MS: m/z No (M + H).sup.+ 267
440.2 268 520.2 270 606.1 271 604.1 272 504.2 273 546.2 274 456.2
275 470.2 276 518.2 277 560.1 278 513.2 281 485.1 283 502.2 284
546.2 285 519.2 286 507.1 287 519.2 288 495.2 290 524.1 292 498.2
293 542.1 294 495.1 296 426.1 297 519.2 298 489.2 299 485.1 300
488.2 301 469.2 302 524.1 304 519.2 306 489.2 307 535.1 308 551.1
310 493.2 311 506.1 313 523.1 315 452.2 316 511.1 317 476.2 318
511.1 319 488.2 320 516.2 321 519.2 323 490.2 325 535.1 326 522.2
327 495.2 330 558.2 331 476.2 269 474.6 280 529.0 289 485.6 303
547.0 309 492.6 312 457.6 314 475.6 322 487.0 324 432.6 384 472.6
413 496.6 414 514.7 415 459.6 416 485.6 417 530.0 418 562.0 419
475.6 443 531.7 444 546.6
General Procedure 50
##STR00734## ##STR00735##
[0969] Step A:
[0970] To a solution of 4-iodo-3-methylisothiazole (50A, 225 mg,
1.0 mmol) in THF (10 mL) was added ethylmagnesium bromide (2N, 0.55
mL, 1.1 mmol) at 0.degree. C. under N.sub.2 atmosphere. The
reaction mixture was stirred at 0.degree. C. for 3 hrs, and then a
solution of tert-butyl 4-formylpiperidine-1-carboxylate (213 mg,
1.0 mmol) in THF (1 mL) was added dropwise to the above solution at
-10.degree. C. under N.sub.2 atmosphere. The reaction mixture was
stirred at r.t. under N.sub.2 overnight. The reaction mixture was
quenched by sat. NH.sub.4Cl solution, and the resulting mixture was
extracted with EtOAc twice. The combined organic phase was washed
with brine, dried over anhydrous Na.sub.2SO.sub.4, filtered, and
the filtrate concentrated in vacuo to afford 50B. LC-MS: m/z 313.5
(M+H).sup.+.
[0971] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.52 (s, 1H), 4.62 (d,
J=7.1 Hz, 1H), 4.18 (dd, J=24.2, 9.9 Hz, 2H), 3.52 (s, 1H), 2.68
(m, 2H), 2.51 (s, 3H), 1.93 (d, J=13.0 Hz, 1H), 1.72-1.62 (m, 2H),
1.47 (s, 9H), 1.39-1.11 (m, 2H).
Step B:
[0972] To a solution of tert-butyl
4-(hydroxy(3-methylisothiazol-4-yl)methyl)piperidine-1-carboxylate
(50B, 60 mg, 0.192 mmol) in DCM (5 mL) was added DIPEA (28 mg,
0.212 mmol), followed by MsCl (24.3 mg, 0.212 mmol) at 0.degree. C.
The reaction mixture was stirred at 0.degree. C. for 0.5 h. Then
the reaction mixture was allowed to warm to r.t. and stirred for an
additional 1 h. The mixture was extracted with DCM (10 mL, twice).
The combined organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4, filtered, and the filtrate was concentrated in
vacuo to afford 50C. LC-MS: m/z 331.1 (M+H).sup.+.
[0973] .sup.1H NMR (CHLOROFORM-d) .delta.: 8.57 (s, 1H), 4.77 (d,
J=8.4 Hz, 1H), 4.17 (d, J=37.5 Hz, 2H), 2.82-2.59 (m, 2H), 2.54 (s,
3H), 2.19-1.99 (m, 2H), 1.47 (s, 9H), 1.36-1.14 (m, 3H).
Step C:
[0974] To a solution of tert-butyl
4-(chloro(3-methylisothiazol-4-yl)methyl)piperidine-1-carboxylate
(50C, 78 mg, 0.236 mmol) in DCM (0.5 mL) was added DBU (3 mL) at
r.t. The reaction mixture was stirred at 120.degree. C. in
microwave for 0.5 h. Then the reaction mixture was cooled to r.t.
The resulting mixture was extracted with EtOAc (10 mL, twice). The
combined organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4, filtered, and the filtrate concentrated in vacuo
to afford 50D. LC-MS: m/z 295.1 (M+H).sup.+. .sup.1H NMR
(CHLOROFORM-d) .delta.: 8.27 (s, 1H), 6.13 (s, 1H), 3.59-3.49 (m,
2H), 3.47-3.38 (m, 2H), 2.46 (s, 3H), 2.38 (m, 4H), 1.50 (s,
9H).
Step D:
[0975] To a solution of tert-butyl
4-((3-methylisothiazol-4-yl)methylene)piperidine-1-carboxylate
(50D, 147 mg, 0.5 mmol) in acetone (12 mL) and H.sub.2O (2 mL) was
added dropwise H.sub.2SO.sub.4 (123 mg, 1.25 mmol) in H.sub.2O (0.6
mL), followed with NBS (134 mg, 0.75 mmol) at 0-5.degree. C. The
reaction mixture was stirred at 0-5.degree. C. for 3 hrs. Then the
reaction mixture was extracted with EtOAc (10 mL, twice). The
combined organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4, filtered, and the filtrate was concentrated in
vacuo to afford 50E. LC-MS: m/z 391.1 (M+H).sup.+.
Step E:
[0976] To a solution of tert-butyl
4-bromo-4-(hydroxy(3-methylisothiazol-4-yl)methyl)piperidine-1-carboxylat-
e (50E, 39.1 mg, 0.1 mmol) in THF (2 mL) was added NaH (4.0 mg, 0.1
mmol) at 0.degree. C. The reaction mixture was stirred at r.t. for
2 hrs. Then the reaction mixture was quenched by Sat. NH.sub.4Cl.
The mixture was extracted with EtOAc (10 mL, twice). The combined
organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4, filtered, and the filtrate was concentrated in
vacuo to afford 50F. LC-MS: m/z 211.2 (M+H-100).sup.+.
Step F:
[0977] To a solution of tert-butyl
2-(3-methylisothiazol-4-yl)-1-oxa-6-azaspiro[2.5]octane-6-carboxylate
(10 mg, 0.032 mmol) and Tetrabutyl ammonium bromide (21 mg, 0.065
mmol) in DCM (3 mL) was added dropwise borontrifluro ether complex
(15 mg, 0.048 mmol) at 0.degree. C. The reaction mixture was
stirred at 0.degree. C. for 10 min. Then the reaction mixture was
extracted with DCM (10 mL, twice). The combined organic phase was
washed with brine, dried over anhy. Na.sub.2SO.sub.4, filtered, and
the filtrate was concentrated in vacuo to afford 50G. LC-MS: m/z
211.2 (M+H-56).sup.+.
[0978] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.03 (s, 1H), 5.02 (s,
1H), 4.12-3.83 (m, 2H), 3.20-2.93 (m, 2H), 2.52 (s, 3H), 2.18-2.03
(m, 2H), 1.55 (dd, J=13.5, 2.7 Hz, 2H), 1.47 (s, 9H).
Step G:
[0979] To a solution of tert-butyl
4-(bromo(3-methylisothiazol-4-yl)methyl)-4-hydroxypiperidine-1-carboxylat-
e (50G, 58 mg, 0.15 mmol) and AIBN (4.9 mg, 0.03 mmol) in toluene
(5 mL) was added Tributyltin hydride (65.1 mg, 0.223 mmol) at r.t.
under N.sub.2. The reaction mixture was stirred at 90.degree. C.
for 8 h, when TLC showed that the reaction was complete. The
reaction mixture was concentrated in vacuo to afford 5011. LC-MS:
m/z 313.2 (M+H).sup.+.
Step H:
[0980] To a solution of tert-butyl
4-hydroxy-4-((3-methylisothiazol-4-yl)methyl)piperidine-1-carboxylate
(50H, 55 mg) in DCM (5 mL), was added TFA (1 mL), the reaction
mixture was stirred at room temperature for about 2 hours, when
LCMS detected no s.m. The reaction mixture was concentrated to
afford the desired product 50I. The crude product was used for the
next step directly without further purification. LC-MS: m/z 213.2
(M+H).sup.+.
Step I:
[0981] To a solution of 4-(arylsulfonamido)benzoic acid (0.18 mmol)
in DCM (5 mL) was added HBTU (80 mg, 0.22 mmol), DIPEA (70 mg, 0.54
mmol) and 4-((3-methylisothiazol-4-yl)methyl)piperidin-4-ol (50I,
38 mg, 0.18 mmol), sequentially at room temperature. The reaction
mixture was stirred at room temperature for 1 hour. The mixture was
poured into water and extracted with EtOAc (20 mL) twice. The
combined organic layer was washed with brine and dried over anhy.
Na.sub.2SO.sub.4. The combined organic layer was concentrated in
vacuo and purified using standard techniques to afford the desired
product.
[0982] The following compounds were prepared according to General
Procedure 50.
Compound 497:
N-(4-(4-hydroxy-4-((3-methylisothiazol-4-yl)methyl)piperidine-1-carbonyl)-
phenyl)quinoxaline-5-sulfonamide
##STR00736##
[0984] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.08 (s, 2H), 8.45 (dd,
J=7.3, 1.4 Hz, 1H), 8.40-8.32 (m, 2H), 8.05 (s, 1H), 7.86 (dd,
J=8.4, 7.4 Hz, 1H), 7.19 (d, J=8.5 Hz, 2H), 7.09 (d, J=8.6 Hz, 2H),
4.43 (s, 1H), 3.47 (s, 1H), 3.32 (s, 1H), 3.10 (s, 1H), 2.79 (s,
2H), 2.47 (s, 3H), 1.60-1.35 (m, 4H). LC-MS: m/z 524.4
(M+H).sup.+.
Compound 519:
N-(4-(4-hydroxy-4-((3-methylisothiazol-4-yl)methyl)piperidine-1-carbonyl)-
phenyl)benzo[d]thiazole-7-sulfonamide
##STR00737##
[0986] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.49 (s, 1H), 8.56 (s,
1H), 8.33 (dd, J=8.1, 0.9 Hz, 1H), 8.12 (dd, J=7.6, 1.0 Hz, 1H),
7.57 (t, J=7.9 Hz, 1H), 7.20 (s, 4H), 4.32 (d, J=6.8 Hz, 1H), 3.39
(s, 1H), 3.19 (m, 2H), 2.81 (s, 2H), 2.46 (s, 3H), 1.66-1.40 (m,
4H). LC-MS: m/z 529.77 (M+H).sup.+
General Procedure 51
##STR00738##
[0987] Step A:
[0988] To a suspension of benzo[d][1,3]dioxol-4-amine (800 mg, 5.84
mmol) in HCl (30 mL) was added dropwise NaNO.sub.2 (604.4 mg, 8.76
mmol) in water (2 mL) at 0.degree. C. After the addition, the
reaction mixture was stirred at 0.degree. C. for 2 h. To a solution
of CuCl (867.2 mg, 8.76 mmol) in CH.sub.3COOH (30 mL) was pumped
SO.sub.2 for 3 h at 20.degree. C., and the resulting reaction
mixture was added to the previous solution at r.t. Then the
reaction mixture was stirred at 40.degree. C. overnight. The
reaction mixture was quenched by sat. NH.sub.4Cl solution, and the
resulting mixture was extracted with EtOAc (50 mL, twice). The
combined organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4 and concentrated in vacuo to give 51B. LC-MS: m/z
221.6 (M+H).sup.+.
Step B:
Compound 448:
N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)benzo[d][1,3]dioxo-
le-4-sulfonamide
##STR00739##
[0990] To a suspension of the corresponding 51C (124 mg, 0.45 mmol)
and sulfonyl chloride (100 mg, 0.45 mmol) in 30 mL of anhydrous
THF, was added pyridine (1.0 mmol) at room temperature. The
resulting mixture was heated and stirred at reflux for 6 h. The
reaction mixture was cooled to room temperature, and then extracted
with EtOAc (100 mL.times.2). The combined organic phase was washed
with brine, dried over anhy. Na.sub.2SO.sub.4, concentrated in
vacuo and purified by standard methods. .sup.1H NMR (CHLOROFORM-d)
.delta.: 7.32 (d, J=7.5 Hz, 2H), 7.26 (d, J=8.3 Hz, 1H), 7.15 (d,
J=7.4 Hz, 2H), 6.99 (d, J=7.6 Hz, 1H), 6.90 (dd, J=10.3, 5.6 Hz,
2H), 6.12 (s, 2H), 4.40 (s, 1H), 3.58-3.15 (m, 3H), 1.86 (dt,
J=12.8, 6.3 Hz, 1H), 1.58 (dd, J=29.1, 11.7 Hz, 4H), 1.44 (d, J=5.9
Hz, 2H), 1.00 (d, J=6.6 Hz, 6H). LC-MS: m/z 461.7 (M+H).sup.+.
General Procedure 52
##STR00740##
[0991] Step A:
[0992] To a solution of the corresponding 4-chloroaryl reagent (0.9
mmol) in THF (10 mL) was added dropwise n-BuLi (0.392 mL, 0.98
mmol) at -78.degree. C. under N.sub.2. After 1 h stirring at
-78.degree. C., a solution of tert-butyl
1-oxa-6-azaspiro[2.5]octane-6-carboxylate (200 mg, 0.98 mmol) in 1
mL of THF was added dropwise to the reaction mixture, followed by
BF.sub.3.OEt.sub.2 (299.3 mg, 0.98 mmol) at -78.degree. C. under
N.sub.2. The reaction mixture was stirred at -78.degree. C. for 3
h, and then the reaction mixture was allowed to warm to r.t. and
stirred at r.t. overnight. The reaction mixture was cooled to
-30.degree. C. and quenched by Sat. NH.sub.4Cl. The resulting
mixture was extracted with EtOAc (50 mL, twice). The combined
organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4 and concentrated in vacuo. The residue was
purified by standard methods to afford 52B.
Step B:
[0993] To a solution of compound 52B (150 mg) in DCM (5 mL), was
added TFA (1 mL), the reaction mixture was stirred at room
temperature for about 2 hours, when LCMS detected no s.m. The
reaction mixture was concentrated to afford the desired product
52C. The crude product was used for the next step directly without
further purification.
Step C:
[0994] To a solution of 4-(aryl-4-sulfonamido)benzoic acid (0.45
mmol) in DCM (5 mL) was added HBTU (180 mg, 0.54 mmol), DIPEA (174
mg, 1.35 mmol) and compound 52C (0.45 mmol), sequentially at room
temperature. The reaction mixture was stirred at room temperature
overnight. The mixture was poured into water and extracted with DCM
(20 mL) twice. The combined organic layer was washed with brine and
dried over anhy. Na.sub.2SO.sub.4, concentrated in vacuo, and
purified by standard methods to afford the desired compound.
[0995] The following compounds were prepared according to General
Procedure 52.
Compound 489:
N-(4-(4-((4-chlorothiazol-2-yl)methyl)-4-hydroxypiperidine-1-carbonyl)phe-
nyl)benzo[d]thiazole-4-sulfonamide
##STR00741##
[0997] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.31 (s, 1H), 8.19 (dd,
J=8.2, 1.0 Hz, 1H), 8.09 (dd, J=7.5, 1.0 Hz, 1H), 7.92 (s, 1H),
7.54 (t, J=7.9 Hz, 1H), 7.19 (d, J=8.5 Hz, 2H), 7.10 (d, J=8.6 Hz,
2H), 7.02 (s, 1H), 4.36 (s, 1H), 3.37 (dd, J=50.3, 26.0 Hz, 3H),
3.10 (s, 2H), 1.57 (dd, J=28.7, 9.8 Hz, 4H). LC-MS: m/z 549.2
(M+H).sup.+.
Compound 462:
N-(4-(4-hydroxy-4-((1-methyl-1H-pyrazol-4-yl)methyl)piperidine-1-carbonyl-
)phenyl)benzo[d]thiazole-4-sulfonamide
##STR00742##
[0999] .sup.1H NMR (CHLOROFORM-d) .delta.: 9.49 (s, 1H), 8.34 (dd,
J=8.1, 1.0 Hz, 1H), 8.13 (dd, J=7.6, 1.1 Hz, 1H), 7.58 (t, J=7.8
Hz, 1H), 7.38 (d, J=1.9 Hz, 1H), 7.19 (d, J=4.6 Hz, 4H), 6.15 (d,
J=1.9 Hz, 1H), 4.29 (s, 1H), 3.85 (d, J=4.4 Hz, 3H), 3.40 (s, 2H),
3.28 (s, 1H), 2.85 (s, 2H), 1.71-1.45 (m, 4H). LC-MS: m/z 512.1
(M+H).sup.+.
Compound 461:
N-(4-(4-hydroxy-4-((1-methyl-1H-pyrazol-5-yl)methyl)piperidine-1-carbonyl-
)phenyl)benzo[d]thiazole-4-sulfonamide
##STR00743##
[1001] .sup.1H NMR (METHANOL-d.sub.4) .delta.: 9.48 (s, 1H), 8.30
(d, J=8.1 Hz, 1H), 8.10 (d, J=7.6 Hz, 1H), 7.55 (t, J=7.8 Hz, 1H),
7.37 (d, J=1.9 Hz, 1H), 7.19 (s, 4H), 6.13 (d, J=1.9 Hz, 1H), 4.29
(s, 1H), 3.83 (s, 3H), 3.33 (s, 2H), 3.28 (s, 1H), 2.84 (s, 2H),
1.49-1.65 (m, 4H). LC-MS: m/z 512.1 (M+H).sup.+.
Compound 508:
N-(4-(4-hydroxy-4-((1-methyl-1H-pyrazol-5-yl)methyl)piperidine-1-carbonyl-
)phenyl)quinoxaline-5-sulfonamide
##STR00744##
[1003] .sup.1H NMR (METHANOL-d.sub.4) .delta.: 9.07 (s, 2H), 8.45
(dd, J=7.3, 1.3 Hz, 1H), 8.36 (dd, J=8.6, 1.3 Hz, 1H), 8.06 (s,
1H), 7.85 (dd, J=8.5, 7.4 Hz, 1H), 7.45 (d, J=1.6 Hz, 1H),
7.14-7.25 (m, J=8.6 Hz, 2H), 6.98-7.14 (m, J=8.6 Hz, 2H), 6.10 (d,
J=1.6 Hz, 1H), 4.41 (br. s., 1H), 3.87 (s, 3H), 3.43 (br. s., 1H),
3.31 (br. s., 1H), 3.12 (br. s., 1H), 2.81 (s, 2H), 1.64 (br. s.,
2H), 1.51-1.60 (m, 2H). LC-MS: m/z 507.5 (M+H).sup.+
General Procedure 53
##STR00745##
[1004] Step A:
[1005] tert-butyl 4-oxopiperidine-1-carboxylate (1 g, 5.02 mmol)
was dissolved in 2-(bromomethyl)-3,3,3-trifluoroprop-1-ene (1900
mg, 10.038 mol) in THF (20 mL) and saturated ammonium chloride
solution (5 mL). The reaction was cooled to 10.degree. C. and zinc
dust (656 mg, 10 mmol) was added portionwise. After addition the
reaction mixture was stirred overnight. TLC was taken
(heptane/EtOAc 7:1) and showed full conversion of s.m. to product.
The reaction mixture was diluted with water (5 mL), and was
extracted with MTBE. The organic layers were combined and washed
with a saturated solution of NaHCO.sub.3, brine, dried and
evaporated to give the crude product which was used in the next
step without further purification.
Step B:
[1006] To a vial was added with tert-butyl
4-hydroxy-4-(2-(trifluoromethyl)allyl)piperidine-1-carboxylate (400
mg, 1.29 mmol), EtOH (10 mL), 10% Pd/C (250 mg), and AcOH (0.5 mL).
The mixture was stirred at 40.degree. C. for 16 hrs under H.sub.2
atmosphere. Then the reaction mixture was filtered, and evaporated
to give the crude product which was used in the next step without
further purification.
Step C:
[1007] To a vial was added with compound 53C (100 mg, 0.323 mmol),
DCM (5 mL) and HCl/MeOH (4.5 M, 1 mL), the mixture was stirred at
0-15.degree. C. for 16 hrs. The mixture was concentrated in vacuo
to obtain the crude product, which was used directly for the next
step.
Step D:
[1008] To a solution of the corresponding
4-(aryl-4-sulfonamido)benzoic acid (0.45 mmol) in DCM (5 mL) was
added HBTU (180 mg, 0.54 mmol), DIPEA (174 mg, 1.35 mmol) and
compound 53D (0.45 mmol), sequentially at room temperature. The
reaction mixture was stirred at room temperature overnight. The
mixture was poured into water and extracted with DCM (20 mL) twice.
The combined organic layer was washed with brine and dried over
anhy. Na.sub.2SO.sub.4, concentrated in vacuo, and purified by
standard methods to afford the desired product.
[1009] The following compounds were prepared according to General
Procedure 53.
Compound 456:
2-amino-N-(4-(4-hydroxy-4-(3,3,3-trifluoro-2-methylpropyl)piperidine-1-ca-
rbonyl)phenyl)benzo[d]thiazole-4-sulfonamide
##STR00746##
[1011] .sup.1H NMR (CHLOROFORM-d) .delta.: 7.79 (dd, J=7.9, 1.2 Hz,
1H), 7.73 (dd, J=7.8, 1.1 Hz, 1H), 7.19-7.31 (m, 4H), 7.07 (t,
J=7.8 Hz, 1H), 4.23-4.34 (m, 1H), 3.40 (br. s., 2H), 3.21 (br. s.,
1H), 2.51 (d, J=7.3 Hz, 1H), 1.84 (d, J=14.8 Hz, 1H), 1.67 (d,
J=17.5 Hz, 1H), 1.48-1.59 (m, 2H), 1.43 (dd, J=14.6, 7.9 Hz, 1H),
1.33 (d, J=18.0 Hz, 1H), 1.22 (d, J=7.0 Hz, 3H). LC-MS: m/z 543.5
(M+H).sup.+
Compound 458:
4-hydroxy-N-(4-(4-hydroxy-4-(3,3,3-trifluoro-2-methylpropyl)piperidine-1--
carbonyl)phenyl)quinazoline-8-sulfonamide
##STR00747##
[1013] .sup.1H NMR (METHANOL-d.sub.4) .delta.: 8.36-8.44 (m, 2H),
8.28 (s, 1H), 7.58 (tt, J=7.9, 1.0 Hz, 1H), 7.24 (s, 4H), 4.27 (br.
s., 1H), 3.35-3.50 (m, 2H), 3.20 (br. s., 1H), 2.50 (d, J=7.5 Hz,
1H), 1.84 (d, J=14.5 Hz, 1H), 1.67 (d, J=15.6 Hz, 1H), 1.51 (br.
s., 2H), 1.43 (dd, J=14.6, 7.9 Hz, 1H), 1.24-1.37 (m, 1H), 1.21 (d,
J=6.7 Hz, 3H). LC-MS: m/z 539.6 (M+H).sup.+
General Procedure 54
##STR00748##
[1014] Step A:
[1015] To a stirring solution of the tert-butyl
4-methylenepiperidine-1-carboxylate (9.0 g, 45.4 mmol) in
chloroform (150 mL) at 0.degree. C. was added 3-Chloroperoxybenzoic
acid (12.2 g, 70.4 mmol) and the reaction mixture was stirred for
30 minutes at 0.degree. C. and was then allowed to warm up to room
temperature. The reaction progress was monitored by TLC, and
additional portions of m-CPBA were added as needed. Upon
completion, the reaction mixture was diluted with chloroform (100
mL) and washed with 10% aq. Na.sub.2SO.sub.3 (2.times.60 mL), 10%
aq. NaHCO.sub.3 (2.times.150 mL) and brine (150 mL). The organic
layer was dried over Na.sub.2SO.sub.4, filtered and concentrated
and purified by standard methods to give 54B. .sup.1H NMR (400 MHz,
CHLOROFORM-d) .delta.: 1.41-1.52 (m, 11H) 1.81 (ddd, J=13.50, 9.34,
4.30 Hz, 2H) 2.70 (s, 2H) 3.44 (ddd, J=13.23, 9.60, 3.76 Hz, 2H)
3.67-3.80 (m, 2H).
Step B:
[1016] To a stirred solution of malononitrile (1.45 g, 22.0 mmol)
in THF (20 mL) was added portionwise NaH (60% in oil, 845 mg, 21
mmol) at 0.degree. C. under an inert atmosphere. After being
stirred for 30 min at 0.degree. C., a solution of compound 2 (900
mg, 4.22 mmol) in THF (10 mL) was added to the reaction mixture at
0.degree. C., and stirring was continued for 16 h at RT. The
progress of the reaction was monitored by TLC. The reaction was
quenched with ice-cold water (100 mL) and extracted with EA
(2.times.50 mL). The combined organic layers were washed with water
(40 mL) and brine (40 mL), dried over anhydrous Na.sub.2SO.sub.4
and concentrated under reduced pressure to obtain the crude
material. Purification by silica gel column chromatography (eluting
with 45% EA/PE) afforded compound 54C. LC-MS: m/z 280.3
(M+H).sup.+. NMR (400 MHz, CHLOROFORM-d) .delta.: 1.48 (s, 13H),
2.68 (s, 2H), 3.17-3.37 (m, 3H), 3.71 (d, J=12.36 Hz, 2H), 3.93
(br. s., 1H).
Step C:
[1017] To a stirred solution of compound 54C (630 mg, 2.26 mmol) in
EtOH (20 mL) was added 50% hydrazine hydrate (0.7 mL), and the
reaction mixture was heated to reflux temperature for 4 hrs. The
progress of the reaction was monitored by TLC. The volatiles were
evaporated under reduced pressure to afford compound 54D. LC-MS:
m/z 312.3 (M+H).sup.+. .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.
1.35-1.58 (m, 13H), 2.25 (br. s., 2H), 3.05 (br. s., 2H), 3.76 (d,
J=11.55 Hz, 2H), 4.79 (br. s., 6H).
Step D:
[1018] To a solution of 54D (100 mg, 0.32 mmol) in 50% aqueous
hypophosphorous acid (10 ml) was added water (5.0 mL) at 0.degree.
C. while stirring. A solution of NaNO.sub.2 (500 mg, 7.2 mmol) in
water (2.0 mL) was added dropwise. The reaction mixture was then
stirred continuously for 30 min at 0.degree. C. and finally allowed
to warm up to RT, and then stirred for 3.0 h when LC-MS show full
conversion of s.m. to product. After neutralization with saturated
NaOH aqueous, the reaction mixture was extracted with EA
(2.times.50 mL). The combined organic layers were washed with water
(40 mL) and brine (40 mL), and then dried over anhydrous
Na.sub.2SO.sub.4, filtered, and the filtrate was concentrated under
reduced pressure to obtain the crude product 54E. LC-MS: m/z 182.2
(M+H).sup.+.
Step E:
[1019] To a solution of the corresponding
4-(aryl-4-sulfonamido)benzoic acid (0.45 mmol) in DCM (5 mL) was
added HBTU (180 mg, 0.54 mmol), DIPEA (174 mg, 1.35 mmol) and
compound 5 (0.45 mmol), sequentially at room temperature. The
reaction mixture was stirred at room temperature overnight. The
mixture was poured into water and extracted with DCM (20 mL) twice.
The combined organic layer was washed with brine and dried over
anhy. Na.sub.2SO.sub.4, concentrated in vacuo, and purified by
standard methods to afford the desired compound.
[1020] The following compounds were prepared according to General
Procedure 54.
Compound 499:
N-(4-(4-((1H-pyrazol-4-yl)methyl)-4-hydroxypiperidine-1-carbonyl)phenyl)q-
uinoxaline-5-sulfonamide
##STR00749##
[1022] .sup.1H NMR (CHLOROFORM-d) .delta.: 1.47 (d, J=6.18 Hz, 2H),
1.62 (br. s., 2H), 2.67 (s, 2H), 3.09 (br. s., 3H), 4.39 (br. s.,
1H), 7.08 (m, J=8.60 Hz, 2H), 7.19 (m, J=8.60 Hz, 2H), 7.48 (s,
2H), 7.85 (dd, J=8.46, 7.39 Hz, 1H), 8.04 (s, 1H), 8.36 (dd,
J=8.33, 1.34 Hz, 1H), 8.45 (dd, J=7.25, 1.34 Hz, 1H), 9.08 (s, 2H).
LC-MS: m/z 493.4 (M+H).sup.+
Compound 498:
N-(4-(4-((1H-pyrazol-4-yl)methyl)-4-hydroxypiperidine-1-carbonyl)phenyl)b-
enzo[d]thiazole-4-sulfonamide
##STR00750##
[1024] .sup.1H NMR (CHLOROFORM-d) .delta. 1.32 (br. s., 4H), 2.60
(s, 2H), 3.03 (br. s., 1H), 3.20 (br. s., 2H), 4.05 (br. s., 1H),
7.11 (q, J=8.87 Hz, 4H), 7.36 (br. s., 2H), 7.65 (t, J=7.92 Hz,
1H), 8.11 (dd, J=7.52, 1.07 Hz, 1H), 8.50 (dd, J=8.06, 1.07 Hz,
1H), 9.65 (s, 1H), 10.75 (s, 1H), 12.50 (br. s., 1H). LC-MS: m/z
498.1 (M+H).sup.+
General Procedure 55
##STR00751##
[1025] Step A:
[1026] To a solution of Ceric ammonium nitrate (CAN) (1.1 g, 1.88
mmol) in acetonitrile (20 mL) were added
tert-butyl-4-methylenepiperidine-1-carboxylate (197 mg, 1.0 mmol)
and pentane-2,4-dione (200 mg, 2.0 mmol) in acetonitrile (10 mL) at
r.t., and the reaction mixture was stirred for 2 hrs at RT. The
mixture was poured into water (50 mL) and extracted with EtOAC
(3.times.60 mL), the organic layer was then washed with water (60
mL) and brine (60 mL), dried over anhy. Na.sub.2SO.sub.4, and
concentrated in vacuo. The residue was purified by standard methods
(PE/EA=4/1) to give 55B. .sup.1H NMR (CHLOROFORM-d) .delta.
1.42-1.44 (m, 9H), 1.52-1.65 (m, 3H), 1.76 (br. s., 1H), 2.16 (s,
3H), 2.18 (s, 3H), 2.65-2.71 (m, 2H), 3.35 (ddd, J=13.30, 9.81,
3.22 Hz, 2H), 3.59 (d, J=13.16 Hz, 2H). LC-MS: m/z 296.4
(M+H).sup.+
Step B:
[1027] To a stirred solution of compound tert-butyl
3-acetyl-2-methyl-1-oxa-8-azaspiro[4.5]dec-2-ene-8-carboxylate (570
mg, 1.93 mmol) in EtOH (20 mL) was added 50% hydrazine hydrate (1.0
mL), and the reaction mixture stirred at r.t. overnight. The
reaction mixture was evaporated under reduced pressure to afford
55C. LC-MS: m/z 310.4 (M+H).sup.+
[1028] A similar procedure to preparation of 55D was employed.
LC-MS: m/z 311.4 (M+H).sup.+
Step C:
[1029] 55C or 55D (200 mg, 0.65 mmol) was added to solution of
hydrogen chloride in dioxane (4M, 3.0 mL) and the resulting
solution was stirred overnight at room temperature. The solvent was
evaporated in vacuo and the residue was treated with diethyl ether.
The resultant suspension was filtered to give the desired compound.
LC-MS: m/z 210.4 (M+H).sup.+
Step D:
[1030] A similar procedure to General Procedure 54, step E was
used.
[1031] The following compounds were prepared according to General
Procedure 55. Compound 512:
N-(4-(4-((3,5-dimethyl-1H-pyrazol-4-yl)methyl)-4-hydroxypiperidine-1-carb-
onyl)phenyl)quinoxaline-5-sulfonamide
##STR00752##
[1032] .sup.1H NMR (CHLOROFORM-d) .delta. 1.44-1.51 (m, 2H), 1.57
(dd, J=12.36, 6.98 Hz, 2H), 2.24 (s, 6H), 2.51 (s, 2H), 3.32 (br.
s., 3H), 4.44 (br. s., 1H), 7.09 (m, J=8.60 Hz, 2H), 7.20 (m,
J=8.60 Hz, 2H), 7.86 (dd, J=8.46, 7.39 Hz, 1H), 8.08 (br. s., 1H),
8.36 (dd, J=8.60, 1.34 Hz, 1H) 8.46 (dd, J=7.39, 1.21 Hz, 1H), 9.08
(s, 2H), 11.22 (br. s., 1H). LC-MS: m/z 521.5 (M+H).sup.+
Compound 514:
N-(4-(4-(3,5-dimethyl-1H-pyrazol-4-yl)methyl)-4-hydroxypiperidine-1-carbo-
nyl)phenyl)benzo[d]thiazole-4-sulfonamide
##STR00753##
[1034] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 1.51-1.60
(m, 4H), 2.25 (s, 6H), 2.54 (s, 2H), 3.09-3.40 (m, 3H), 4.35 (br.
s., 1H), 7.13-7.30 (m, 4H), 7.58 (t, J=7.92 Hz, 1H), 8.12 (dd,
J=7.52, 1.07 Hz, 1H), 8.34 (dd, J=8.19, 0.94 Hz, 1H), 9.49 (s, 1H).
LC-MS: m/z 526.5 (M+H).sup.+
Compound 521:
N-(4-(4-((3,5-dimethylisoxazol-4-yl)methyl)-4-hydroxypiperidine-1-carbony-
l)phenyl)quinoxaline-5-sulfonamide
##STR00754##
[1036] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 1.33-1.47
(m, 2H), 1.57 (br. s., 2H), 2.18 (s, 3H), 2.30 (s, 3H), 2.39-2.46
(m, 2H), 3.05 (br. s., 1H), 3.26 (br. s., 1H), 3.35 (d, J=4.30 Hz,
1H), 4.32 (d, J=12.89 Hz, 1H), 7.17 (s, 4H), 7.84-7.93 (m, 1H),
8.28 (dd, J=8.60, 1.07 Hz, 1H), 8.48 (dd, J=7.39, 1.21 Hz, 1H),
9.00 (d, J=1.88 Hz, 1H), 9.09 (d, J=1.61 Hz, 1H). LC-MS: m/z 522.8
(M+H).sup.+
Compound 520:
N-(4-(4-((3,5-dimethylisoxazol-4-yl)methyl)-4-hydroxypiperidine-1-carbony-
l)phenyl)benzo[d]thiazole-4-sulfonamide
##STR00755##
[1038] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 1.43 (d,
J=16.12 Hz, 1H), 1.51 (br. s., 1H), 1.61 (br. s., 2H), 2.17-2.24
(m, 3H), 2.29-2.39 (m, 3H), 2.47 (s, 2H), 3.10 (br. s., 2H), 3.41
(br. s., 1H), 4.32 (d, J=6.98 Hz, 1H), 7.19 (s, 4H), 7.59 (t,
J=7.79 Hz, 1H), 8.06-8.20 (m, 1H), 8.34 (d, J=8.06 Hz, 1H), 8.51
(br. s., 1H), 9.50 (br. s., 1H). LC-MS: m/z 527.6 (M+H).sup.+
General Procedure 56
##STR00756## ##STR00757##
[1039] Step A:
[1040] A magnetically stirred solution of 1,4-cyclohexanedione
monoethylene acetal 56A (5.00 g, 32.0 mmol) in MeOH (30 mL) at
0.degree. C., was treated with sodium borohydride (1.57 g, 41.5
mmol). After 0.5 h, the reaction mixture was warmed to 18.degree.
C. and stirred at this temperature for an additional 0.5 h. The
solvent was then removed under reduced pressure and the resulting
residue was partitioned between H.sub.2O (30 mL) and
CH.sub.2Cl.sub.2 (30 mL). The separated aqueous phase was extracted
with CH.sub.2Cl.sub.2 (20 mL) and the combined organic fractions
were then dried over MgSO4, filtered and the filtrate was
concentrated under reduced pressure to afford 56B. LC-MS: m/z 159.1
(M+H).sup.+
Step B:
[1041] A magnetically stirred solution of alcohol 56B (3.00 g, 19.0
mmol) in dry CH.sub.2Cl.sub.2 (20 mL) was treated with carbon
tetrabromide (7.55 g, 22.8 mmol) and the resulting mixture was
cooled to 0.degree. C. Triphenylphosphine (5.97 g, 22.8 mmol) was
then added and stirring was continued at 0.degree. C. under a
nitrogen atmosphere for 5 hrs. After this time H.sub.2O (50 mL),
followed by CH.sub.2Cl.sub.2 (80 mL) were added to the reaction
mixture, the organic phase was separated and the aqueous phase was
extracted with CH.sub.2Cl.sub.2 (80 mL). The combined organic
fractions were then dried (MgSO.sub.4), filtered, and the filtrate
was concentrated under reduced pressure, and purified by standard
methods to afford 56C. LC-MS: m/z 221.1 (M+H).sup.+
Step C:
[1042] To a solution of Li (70 mg, 1.1 mmol) in THF (10 mL) was
added dropwise 1-benzoylpiperidin-4-one (103 mg, 0.55 mmol) at
-78.degree. C. under N.sub.2. After 1 h,
8-bromo-1,4-dioxaspiro[4.5]decane (120 mg, 0.55 mmol) in THF (1 mL)
was added dropwise to the reaction mixture at -78.degree. C. under
N.sub.2. The reaction mixture was stirred at -78.degree. C. for 3
h, and then the reaction mixture was allowed to warm up to r.t. and
stirred at r.t. overnight. The reaction mixture was cooled to
-30.degree. C. and quenched by Sat. NH.sub.4Cl. The resulting
mixture was extracted with EtOAc (50 mL, twice). The combined
organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4 and concentrated in vacuo. The residue was
purified by standard methods to afford 56D. LC-MS: m/z 332.2
(M+H).sup.+
Step D:
[1043] 56D (300 g, 1.1 mmol) was dissolved in water (5 mL), conc.
hydrochloric acid (5 mL) was added and the mixture was stirred at
r.t. for 2 hrs. The reaction mixture was extracted with diethyl
ether (10 mL, twice), the aqueous phase was neutralized with 2 N
NaOH while cooling with ice. The mixture was extracted with DCM (10
mL, twice) and the extract was combined, dried and concentrated to
afford 56E (213 mg). LC-MS: m/z 288.2 (M+H).sup.+
Step E:
[1044] To a solution of compound 56E (213 mg, 0.74 mmol) in ethanol
(10 mL) was added sodium borohydride (80 mg, 2.1 mmol), and the
mixture was stirred at r.t. for 3 h. The reaction mixture was
concentrated in vacuo, water was added to the residue, and
extraction with ethyl acetate (10 mL, twice) was carried out. The
combined extracts were washed with water and saturated sodium
chloride solution, dried (Na.sub.2SO.sub.4) and concentrated in
vacuo to afford 56F. LC-MS: m/z 290.2 (M+H).sup.+
Step F:
[1045] A suspension of compound 5611 (182 mg, 0.63 mmol) and Pd/C
(10%, 20 mg) in MeOH (20 mL) was hydrogenated at 3 bar hydrogen
pressure at r.t. for 2 hours. The reaction mixture was filtered off
and the filtrate was evaporated in vacuo to afford 56G. LC-MS: m/z
200.2 (M+H).sup.+
Step G:
[1046] To a solution of the corresponding
4-(aryl-4-sulfonamido)benzoic acid (1 eq.) in DCM (5 mL) was added
HBTU (1.2 eq.), DIPEA (3 eq.) and compound 7 (1.0 eq.),
sequentially at room temperature. The reaction mixture was stirred
at room temperature overnight. The mixture was poured into water
and extracted with DCM (20 mL) twice. The combined organic layer
was washed with brine, dried over anhy. Na.sub.2SO.sub.4,
concentrated in vacuo, and purified by standard methods to afford
the desired compound.
[1047] The following compounds were prepared according to General
Procedure 56.
Compound 502:
N-(4-(4-hydroxy-4-(4-hydroxycyclohexyl)piperidine-1-carbonyl)phenyl)quino-
xaline-5-sulfonamide
##STR00758##
[1049] .sup.1H NMR (CHLOROFORM-d) .delta. 1.68 (br. s., 28H), 1.84
(s, 4H), 1.81 (s, 5H), 2.07 (s, 4H), 2.05 (s, 4H), 3.09 (br. s.,
4H), 3.30 (d, J=18.27 Hz, 4H), 3.41-3.60 (m, 8H), 4.46 (br. s.,
3H), 7.08 (d, J=8.60 Hz, 7H), 7.19 (d, J=8.33 Hz, 7H), 7.85 (dd, J
8.46, 7.39 Hz, 4H), 8.04 (s, 4H), 8.35 (dd, J=8.33, 1.34 Hz, 3H),
8.45 (dd, J=7.52, 1.34 Hz, 3H), 9.07 (s, 7H). LC-MS: m/z 511.7
(M+H).sup.+
Compound 501:
N-(4-(4-hydroxy-4-(4-hydroxycyclohexyl)piperidine-1-carbonyl)phenyl)benzo-
[d]thiazole-4-sulfonamide
##STR00759##
[1051] .sup.1H NMR (CHLOROFORM-d) .delta. 1.68 (br. s., 28H), 1.84
(s, 4H), 1.81 (s, 5H), 2.07 (s, 4H), 2.05 (s, 4H), 3.09 (br. s.,
4H), 3.30 (d, J=18.27 Hz, 4H), 3.41-3.60 (m, 8H), 4.46 (br. s.,
3H), 7.08 (d, J=8.60 Hz, 7H), 7.19 (d, J=8.33 Hz, 7H), 7.85 (dd,
J=8.46, 7.39 Hz, 4H), 8.04 (s, 4H), 8.35 (dd, J=8.33, 1.34 Hz, 3H),
8.45 (dd, J=7.52, 1.34 Hz, 3H), 9.07 (s, 7H). LC-MS: m/z 516.7
(M+H).sup.+
General Procedure 57
##STR00760## ##STR00761##
[1053] Step A: To a stirred suspension of ethyl
4-(2,3-diaminophenylsulfonamido)benzoate (5 g, 15 mmol) in ethanol
(50 mL) was added a solution of ethyl glyoxalate in toluene (1.6 M,
3 mL, 18 mmol) over a period of 5 min. After heating to 45.degree.
C. for 10 h, the mixture was left at r.t. under stirring. The
precipitate was filtered and the cake was washed with water and
dried to give 57B. LC-MS: m/z 374 (M+H).sup.+. The filtrate was
concentrated and purified by standard methods to provide 57C.
LC-MS: m/z 374 (M+H).sup.+
[1054] Step B: A solution of ethyl
4-(3-oxo-3,4-dihydroquinoxaline-5-sulfonamido)benzoate (500 mg,
1.34 mol) in 10 mL of POCl.sub.3 (10 mL) was heated at reflux for 3
h, the resulting mixture was added carefully into water (40 mL),
the aqueous layer was extracted with EtOAc (50 mL, twice), the
combined organic layers were washed with brine, dried over
Na.sub.2SO.sub.4 and evaporated to provide. The crude product was
purified by standard methods to provide 57D. LC-MS: m/z
392(M+H).sup.+
[1055] Step C: a similar procedure as Step B was used.
[1056] Step D: To a solution of ethyl
4-(3-chloroquinoxaline-5-sulfonamido)benzoate (360 mg, 0.92 mmol)
and CuI (174 mg, 0.92 mmol) in 10 mL DMSO was added ammonia water
dropwise. After the addition was complete, the reaction mixture was
stirred at 110.degree. C. overnight. Then the reaction mixture was
cooled to room temperature, and poured into water (50 mL), the
aqueous layer was extracted with EtOAc (5.times.50 mL), the
combined organic layers were washed with brine, dried over
Na.sub.2SO.sub.4, and concentrated to provide crude 57E, and the
crude product was used in the next step without further
purification. .sup.1H NMR (CHLOROFORM-d) .delta.: 8.33 (br. s.,
1H), 7.77-7.84 (m, 1H), 7.70-7.77 (m, 1H), 7.22 (d, J=8.3 Hz, 2H),
7.13 (d, J=8.6 Hz, 2H), 7.07-7.11 (m, 1H), 6.25 (br. s., 1H), 4.35
(br. s., 1H), 3.44 (br. s., 1H), 3.36 (br. s., 1H), 3.22 (br. s.,
1H), 3.13 (s, 3H), 1.83 (dd, J=12.9, 6.4 Hz, 2H), 1.65 (br. s.,
2H), 1.49 (br. s., 1H), 1.41 (d, J=5.9 Hz, 2H), 0.98 (d, J=6.7 Hz,
6H). LC-MS: m/z 373(M+H).sup.+
[1057] Step E: a similar procedure as Step D was used.
[1058] Step F: To a solution of the corresponding compound 57E (300
mg, 0.8 mmol) in EtOH/H.sub.2O (10 mL/3 mL) was added LiOH.H.sub.2O
(160 mg, 4.0 mmol) and the resulting suspension was stirred at
70.degree. C. overnight. The solvent was concentrated and the
residue was partitioned between aqueous 2 N HCl and EtOAc. The
organic layer was separated and washed with water and brine, dried
over Na.sub.2SO.sub.4 and concentrated to give the desired crude
product 57F, which was used in subsequent reaction without further
purification. LC-MS: m/z 345.1 (M+H).sup.+
[1059] Step G: a similar procedure as Step F was used.
[1060] Step H: To a solution of the corresponding
4-(aryl-4-sulfonamido)benzoic acid (1 eq.) in DCM (5 mL) was added
HBTU (1.2 eq.), DIPEA (3 eq.) and compound 57F (1.0 eq.),
sequentially at room temperature. The reaction mixture was stirred
at room temperature overnight. The mixture was poured into water
and extracted with DCM (20 mL) twice. The combined organic layer
was washed with brine and dried over anhy. Na.sub.2SO.sub.4,
concentrated in vacuo, and purified by standard methods to provide
465.
[1061] Step I: a similar procedure as Step H was used.
[1062] The following compounds were prepared according to General
Procedure 57.
Compound 465:
3-amino-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)quinoxalin-
e-5-sulfonamide
##STR00762##
[1064] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 8.39 (s,
1H), 8.14 (dd, J=7.5, 1.3 Hz, 1H), 7.97 (dd, J=8.2, 1.5 Hz, 1H),
7.32-7.40 (m, 1H), 7.17-7.25 (m, 4H), 4.23 (d, J=12.9 Hz, 1H), 3.37
(s, 2H), 3.12-3.26 (m, 1H), 1.79-1.90 (m, 1H), 1.61-1.73 (m, 1H),
1.51-1.61 (m, 1H), 1.47 (br. s., 2H), 1.38 (d, J=5.6 Hz, 2H), 0.96
(d, J=6.7 Hz, 6H). LC-MS: m/z 484.5 (M+H).sup.+
Compound 468:
2-amino-N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)quinoxalin-
e-5-sulfonamide
##STR00763##
[1066] .sup.1H NMR (DMSO-d.sub.6) .delta. 10.30 (s, 1H), 8.48 (s,
1H), 7.90 (d, J=8.6 Hz, 1H), 7.71 (d, J=9.7 Hz, 1H), 7.56-7.67 (m,
1H), 7.33 (s, 2H), 7.16 (d, J=8.6 Hz, 2H), 7.09 (d, J=8.6 Hz, 2H),
4.16 (s, 1H), 4.06 (br. s., 1H), 3.21 (br. s., 2H), 3.06 (br. s.,
1H), 1.78 (dt, J=12.8, 6.2 Hz, 1H), 1.49 (br. s., 1H), 1.36 (br.
s., 3H), 1.27 (d, J=5.6 Hz, 2H), 0.89 (d, J=6.7 Hz, 6H). LC-MS: m/z
484.5 (M+H).sup.+
Compound 486
2-amino-N-(4-(4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)phenyl-
)quinoxaline-5-sulfonamide
##STR00764##
[1068] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 8.52 (s,
1H), 7.97 (dd, J=7.5, 1.3 Hz, 1H), 7.73 (dd, J=8.6, 1.3 Hz, 1H),
7.56-7.64 (m, 1H), 7.15-7.26 (m, 4H), 4.26 (br. s., 1H), 3.37 (s,
3H), 3.14-3.26 (m, 1H), 1.87-2.02 (m, 2H), 1.43-1.68 (m, 9H).
LC-MS: m/z 520.2 (M+H).sup.+
Compound 493:
2-amino-N-(4-(4-(2,3-difluorophenyl)-4-hydroxypiperidine-1-carbonyl)pheny-
l)quinoxaline-5-sulfonamide
##STR00765##
[1070] .sup.1H NMR (CHLOROFORM-d) .delta. 8.50 (s, 1H), 8.06 (d,
J=8.3 Hz, 1H), 7.96 (s, 1H), 7.85 (d, J=9.4 Hz, 1H), 7.63 (t, J=7.9
Hz, 1H), 7.26 (d, J=8.6 Hz, 2H), 7.11 (d, J=6.7 Hz, 4H), 5.24 (s,
2H), 4.62 (br. s., 1H), 3.59 (br. s., 1H), 3.51 (br. s., 1H), 3.26
(br. s., 1H), 2.29 (br. s., 1H), 2.12 (br. s., 1H), 1.89 (br. s.,
1H), 1.76 (br. s., 1H). LC-MS: m/z 540.1 (M+H).sup.+
Compound 482:
2-amino-N-(4-(4-hydroxy-4-(4,4,4-trifluorobutyl)piperidine-1-carbonyl)phe-
nyl)quinoxaline-5-sulfonamide
##STR00766##
[1072] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 1.41-1.58
(m, 24H), 1.58-1.70 (m, 15H), 2.08-2.22 (m, 9H), 3.37 (br. s., 6H),
7.20 (s, 19H), 7.60 (d, J=7.52 Hz, 4H), 7.73 (dd, J=8.33, 1.34 Hz,
5H), 7.97 (dd, J=7.39, 1.21 Hz, 5H), 8.52 (s, 4H). LC-MS: m/z 537.7
(M+H).sup.+
General Procedure 58
##STR00767## ##STR00768##
[1073] Step A:
[1074] To a stirred suspension of tert-butyl
4-(2-ethoxy-2-oxoethyl)-4-hydroxypiperidine-1-carboxylate (10 g, 35
mmol) in THF (100 mL), at r.t. was added a solution of lithium
hydroxide monohydrate (5.1 g, 122 mmol) in water (20 mL). After
heating to reflux for 3 h, the mixture was cooled to room
temperature. The solvent was evaporated, the residue was dissolved
in water (50 mL) and extracted with ether (3.times.50 mL), the
aqueous layer was acidified to pH=3-5 by addition of 1N HCl. Then
the mixture was extracted with EtOAc (3.times.60 mL), the combined
organic layers were washed with brine, dried over Na.sub.2SO.sub.4,
filtered and the filtrate was concentrated under reduced pressure
to get 58B. LC-MS: m/z 260.1 (M+H).sup.+. .sup.1H NMR
(CHLOROFORM-d) .delta. 3.84 (d, J=13.4 Hz, 2H), 3.22 (t, J=11.3 Hz,
2H), 2.54 (s, 2H), 1.73 (d, J=12.6 Hz, 2H), 1.49-1.58 (m, 2H), 1.47
(s, 9H)
Step B:
[1075] A mixture of
2-(1-(tert-butoxycarbonyl)-4-hydroxypiperidin-4-yl)acetic acid (1
g, 3.86 mol), N,O-dimethylhydroxylamine hydrochloride (412 mg, 4.25
mmol), HBTU (1.6 g, 4.25 mmol), and DIPEA (1.5 g, 11.58 mmol) in
DCM (20 mL) was stirred at room temperature for 3 hrs. The
resulting mixture was washed water (3.times.20 mL), then with
brine, dried over Na.sub.2SO.sub.4, evaporated, and purified by
standard methods to get 58C. LC-MS: m/z 303 (M+H).sup.+
Step C:
[1076] A solution of 0.5 M ethynylmagnesium bromide in THF (10 mL,
5 mmol) was added to tert-butyl
4-hydroxy-4-(2-(methoxy(methyl)amino)-2-oxoethyl)piperidine-1-carboxylate
(500 mg, 1.65 mmol), then the mixture was heated to 50.degree. C.
for 1 hour. Then the reaction mixture was cooled to ambient
temperature and was treated with saturated aqueous ammonium
chloride (20 mL), and then heated to 50.degree. C. for 1 hour.
After this time, the reaction was cooled to ambient temperature,
extracted with ethyl acetate (20 mL), washed with brine, dried over
Na.sub.2SO.sub.4 and filtered. The filtrate was concentrated under
reduced pressure and purified by standard methods to afford 58D.
LC-MS: m/z 329 (M+H).sup.+
Step D:
[1077] To a solution of (E)-tert-butyl
4-hydroxy-4-(4-(methoxy(methyl)amino)-2-oxobut-3-enyl)piperidine-1-carbox-
ylate (250 mg, 0.762 mmol) in EtOH (10 mL) was added Hydrazine
hydrate (50%, 0.5 mL) and then the mixture was stirred at reflux
for 1 h. Then the reaction mixture was cooled to room temperature
and the solvent was removed under reduced pressure. The residue was
dissolved in EtOAc (20 mL) and washed with water (3.times.20 mL),
the organic layer was collected and washed with brine, dried over
Na.sub.2SO.sub.4 and concentrated under reduced pressure to give
58E, which was used in the next step without further purification.
LC-MS: m/z 282.1 (M+H).sup.+
Step E:
[1078] To a solution of tert-butyl
4-((1H-pyrazol-3-yl)methyl)-4-hydroxypiperidine-1-carboxylate (120
mg, 0.43 mmol) in DCM (10 mL) was added 4M HCl in dioxane (5
drops), then the mixture was stirred at room temperature for 10
min. The solvent was then removed and 58F was used in the next step
without further purification. LC-MS: m/z 182.1 (M+H).sup.+
Step F:
[1079] To a solution of the corresponding
4-(aryl-4-sulfonamido)benzoic acid (1 eq.) in DCM (5 mL) was added
HBTU (1.2 eq.), DIPEA (3 eq.) and compound 58F (1.0 eq.),
sequentially at room temperature. The reaction mixture was stirred
at room temperature overnight. The mixture was poured into water
and extracted with DCM (20 mL) twice. The combined organic layer
was washed with brine and dried over anhy. Na.sub.2SO.sub.4. The
combined organic layer was concentrated in vacuo, and purified by
standard methods to give 500.
Compound 500:
N-(4-(4-((1H-pyrazol-3-yl)methyl)-4-hydroxypiperidine-1-carbonyl)phenyl)q-
uinoxaline-5-sulfonamide
##STR00769##
[1081] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 9.11 (d,
J=1.9 Hz, 1H), 9.03 (d, J=1.6 Hz, 1H), 8.50 (dd, J=7.4, 1.2 Hz,
1H), 8.32 (d, J=8.6 Hz, 1H), 7.91 (t, J=7.9 Hz, 1H), 7.53 (s, 1H),
7.11-7.21 (m, 4H), 6.19 (s, 1H), 4.25 (br. s., 1H), 3.12-3.22 (m,
1H), 2.81 (s, 2H), 1.60 (br. s., 2H), 1.48 (br. s., 1H), 1.43 (br.
s., 1H). LC-MS: m/z 493.4 (M+H).sup.+
General Procedure 61
##STR00770##
[1082] Step A
[1083] To the solution of ethyl 4-aminobenzoate (405 mg, 2.5 mmol)
in DCM (15 mL) were added pyridine (395 mg, 5.0 mmol) and
5-oxo-5,6-dihydro-1,6-naphthyridine-8-sulfonyl chloride (61A, 600
mg, 2.5 mmol). The mixture was stirred at 40.degree. C. for 12 hrs,
and then washed with water. The solid was separated by filtration,
washed with water, and dried under vacuum to provide 61B. LC-MS:
m/z 374.1 (M+H).sup.+
Step B
[1084] A mixture of ethyl
4-(5-hydroxy-1,6-naphthyridine-8-sulfonamido)benzoate 61B (800 mg,
2.1 mmol) and NaOH (260 mg, 6.3 mmol) in methanol (30 mL) was
stirred at 80.degree. C. for 12 hrs. The mixture was cooled to r.t.
and adjusted to pH=7 with aqueous HCl (1 N). The solid was
separated by filtration, washed with water, and dried under vacuum
to provide 61C. LC-MS: m/z 346.1 (M+H).sup.+
Step C
[1085] To 10 mL of phosphorus oxychloride was added
4-(5-hydroxy-1,6-naphthyridine-8-sulfonamido)benzoic acid (61C, 450
mg, 1.3 mol) with stirring. The mixture was refluxed for 12 hrs.
After cooling, the mixture was concentrated and poured into ice
water. The solid was separated by filtration, washed with water,
and dried under vacuum to provide 61D. LC-MS: m/z 364.0
(M+H).sup.+
Step D
[1086] A mixture of
4-(5-chloro-1,6-naphthyridine-8-sulfonamido)benzoic acid 61D (400
mg) and Hydrazine hydrate (50 mg, 1.0 mmol) in THF (15 mL) was
stirred at 65.degree. C. for 1 h. After cooling, the mixture was
concentrated and poured into the ice water. The solid was separated
by filtration, washed with water, and dried under vacuum to provide
61E, which was used in the next step without further purification.
LC-MS: m/z 360.1 (M+H).sup.+
Step E: 4-(1,6-naphthyridine-8-sulfonamido)benzoic acid (61F)
##STR00771##
[1088] A mixture of
4-(5-hydrazinyl-1,6-naphthyridine-8-sulfonamido)benzoic acid (400
mg, crude from last step) and Cupric sulfate (110 mg, 0.69 mmol) in
water (10 mL) was stirred at 70.degree. C. for 2 hrs. After
cooling, the mixture was filtered. The product was collected,
washed with water, and dried under vacuum to provide 61F, which was
used in the next step without further purification. LC-MS: m/z
330.1 (M+H).sup.+
Step F: Compound 513
N-(4-(4-hydroxy-4-isobutylpiperidine-1-carbonyl)phenyl)-1,6-naphthyridine-
-8-sulfonamide
##STR00772##
[1090] To the solution of
4-(1,6-naphthyridine-8-sulfonamido)benzoic acid 61F (350 mg) in DCM
(15 mL) was added HBTU (644 mg, 1.7 mmol), TEA (222 mg, 2.2 mmol)
and 4-isobutylpiperidin-4-ol (204 mg, 1.3 mmol). The mixture was
stirred at r.t. for 1 h, and washed with water. The organic layer
was concentrated and purified by Prep-TLC (PE/EA=1/1) to provide
513. .sup.1H NMR (CHLOROFORM-d) .delta. 9.50 (br, 1H), 9.35 (br,
1H), 9.29 (br, 1H), 8.50 (br, 1H), 8.20 (s, 1H), 7.79 (br, 1H),
7.18 (d, J=8.0 Hz, 2H), 7.08 (d, J=8.0 Hz, 2H), 4.30 (br, 1H), 3.47
(br, 3H), 2.04-1.98 (m, 4H), 1.85-1.78 (m, 1H), 1.39 (d, J=5.6 Hz,
2H), 0.95 (d, J=6.8 Hz, 6H). LC-MS: m/z 469.2 (M+H).sup.+
General Procedure 62
##STR00773## ##STR00774##
[1091] Step A
[1092] 62B is prepared using procedures described herein.
Step B
[1093] To a solution of benzyl
4-hydroxy-4-(2-methylallyl)piperidine-1-carboxylate 62B (2.9 g, 10
mmol) in 50 mL of DCM was added pyridine (2.4 g, 30 mmol) and
chloromethyl carbonochloridate (1.9 g, 15 mmol). The resulting
mixture was stirred at 50.degree. C. overnight. After removal of
DCM, the residue was partitioned between water and EtOAc. The
organic layer was washed with 2 N HCl, water and brine, dried over
Na.sub.2SO.sub.4, concentrated, and purified by standard methods to
give 62C. LC-MS: m/z 382.1 (M+H).sup.+.
Step C
[1094] A mixture of benzyl
4-((chloromethoxy)carbonyloxy)-4-(2-methylallyl)piperidine-1-carboxylate
62C (382 mg, 1.0 mmol) and potassium di-tert-butyl phosphate (496
mg, 2 mmol) in DMF (15 mL) was stirred at 45.degree. C. overnight.
The solvent was removed under reduced pressure and the residue was
partitioned between water and EtOAc. The organic layer was washed
with water and brine, dried over Na.sub.2SO.sub.4 and concentrated,
then purified by standard methods to afford 62D. LC-MS: m/z 556.3
(M+H).sup.+.
Step D
[1095] A mixture of benzyl
4-4(((di-tert-butoxyphosphoryl)oxy)methoxy)carbonyl)oxy)-4-(2-methylallyl-
)piperidine-1-carboxylate 62D (1.2 g, 2.2 mmol) and Pd on carbon in
ethanol (20 mL) was stirred at r.t. under hydrogen atmosphere for 3
hrs. The solid was removed off by filtration and the solvent was
concentrated to give 62E, which was used in the next step without
further purification. LC-MS: m/z 424.5 (M+H).sup.+.
Step E: (di-tert-butoxyphosphoryloxy)methyl
4-isobutyl-1-(4-(quinoxaline-5-sulfonamido)benzoyl)piperidin-4-yl
carbonate (62F)
##STR00775##
[1097] To a solution of 4-(quinoxaline-5-sulfonamido)benzoic acid
(1 eq.) in DCM (5 mL) was added HBTU (1.2 eq.), DIPEA (3 eq.) and
(di-tert-butoxyphosphoryloxy)methyl 4-isobutylpiperidin-4-yl
carbonate 62E (1.0 eq.), sequentially at room temperature. The
reaction mixture was stirred at room temperature overnight. The
mixture was poured into water and extracted with DCM (20 mL) twice.
The combined organic layer was washed with brine and dried over
anhy. Na.sub.2SO.sub.4, concentrated in vacuo, and purified by
standard methods to afford 62F. LC-MS: m/z 735.3 (M+H).sup.+.
Step F: Compound 527
4-isobutyl-1-(4-(quinoxaline-5-sulfonamido)benzoyl)piperidin-4-yl
phosphonooxymethyl carbonate
##STR00776##
[1099] To a solution of (di-tert-butoxyphosphoryloxy)methyl
4-isobutyl-1-(4-(quinoxaline-5-sulfonamido)benzoyl)piperidin-4-yl
carbonate 62F (360 mg, 0.5 mmol) in DCM (15 mL) was added dropwise
a solution of TFA (1 mL) in DCM (2 mL) at 0.degree. C. and the
mixture was stirred at 0.degree. C. for 1 h. The solvent was then
removed under reduced pressure, and the residue was purified by
standard methods to afford 527. .sup.1H NMR (DMSO-d.sub.6) M0.70
(br. s., 1H), 9.10 (s, d, J=8.0 Hz, 2H), 8.51 (br. s., 1H), 8.38
(br. s., 1H), 7.99-7.77 (m, 1H), 7.17 (br. s., 2H), 7.09 (br. s.,
2H), 5.26-5.49 (m, 2H), 4.06 (br. s., 1H), 3.25 (br. s., 2H), 2.97
(br. s., 1H), 2.14 (br. s., 1H), 1.99 (br. s., 1H), 1.74 (br. s.,
3H), 1.50 (br. s., 2H), 0.84 (d, J=5.9 Hz, 6H). LC-MS: m/z 623.1
(M+H).sup.+.
General Procedure 63
##STR00777## ##STR00778##
[1100] Step A
[1101] To a solution of 5-iodo-3-methylisothiazole (63A, 225 mg,
1.0 mmol) in THF (10 mL) was added ethylmagnesium bromide (2N, 0.55
mL, 1.1 mmol) at 0.degree. C. under N.sub.2 atmosphere. The
reaction mixture was stirred at 0.degree. C. for 3 hrs, and then a
solution of tert-butyl 4-formylpiperidine-1-carboxylate (213 mg,
1.0 mmol) in THF (1 mL) was added dropwise to the above solution at
-10.degree. C. under N.sub.2 atmosphere. The reaction mixture was
stirred at r.t. under N.sub.2 overnight. The reaction mixture was
quenched by sat. NH.sub.4Cl solution, and the resulting mixture was
extracted with EtOAc twice, was washed with brine, dried over
anhydrous Na.sub.2SO.sub.4, filtered and the filtrate was
concentrated in vacuo to afford 63B. LC-MS: m/z 313.5
(M+H).sup.+.
Step B
[1102] To a solution of tert-butyl
4-(hydroxy(3-methylisothiazol-5-yl)methyl)piperidine-1-carboxylate
(63B, 60 mg, 0.192 mmol) in DCM (5 mL) was added DIPEA (28 mg,
0.212 mmol), followed by MsCl (24.3 mg, 0.212 mmol) at 0.degree. C.
The reaction mixture was stirred at 0.degree. C. for 0.5 h. Then
the reaction mixture was allowed to warm to r.t. and stirred for
additional 1 h. The mixture was extracted with DCM (10 mL, twice).
The combined organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4, filtered and the filtrate was concentrated in
vacuo to afford 63C. LC-MS: m/z 331.1 (M+H).sup.+.
Step C
[1103] To a solution of tert-butyl
4-(chloro(3-methylisothiazol-5-yl)methyl)piperidine-1-carboxylate
(63C, 78 mg, 0.236 mmol) in DCM (0.5 mL) was added DBU (3 mL) at
r.t. The reaction mixture was stirred at 120.degree. C. in
microwave for 0.5 h. Then the reaction mixture was cooled to r.t.,
and was extracted with EtOAc (10 mL, twice). The combined organic
phase was washed with brine, dried over anhy. Na.sub.2SO.sub.4,
filtered and the filtrate was concentrated in vacuo to afford 63D.
.sup.1H NMR (CHLOROFORM-d) .delta. 6.82 (s, 1H), 6.44 (s, 1H), 3.51
(dd, J=11.2, 5.3 Hz, 4H), 2.54 (t, J=5.7 Hz, 2H), 2.45 (d, J=12.6
Hz, 3H), 2.38 (t, J=5.7 Hz, 2H), 1.49 (s, 9H). LC-MS: m/z 295.1
(M+H).sup.+.
Step D
[1104] To a solution of tert-butyl
4-((3-methylisothiazol-5-yl)methylene)piperidine-1-carboxylate
(63D, 147 mg, 0.5 mmol) in acetone (12 mL) and H.sub.2O (2 mL) was
added dropwise H.sub.2SO.sub.4 (123 mg, 1.25 mmol) in H.sub.2O (0.6
mL), followed with NBS (134 mg, 0.75 mmol) at 0-5.degree. C. The
reaction mixture was stirred at 0-5.degree. C. for 3 hrs. Then the
reaction mixture was extracted with EtOAc (10 mL, twice). The
combined organic phase was washed with brine, dried over anhy.
Na.sub.2SO.sub.4, filtered, and the filtrate was concentrated in
vacuo to afford 63E. LC-MS: m/z 391.1 (M+H).sup.+.
Step E
[1105] To a solution of tert-butyl
4-(bromo(3-methylisothiazol-5-yl)methyl)-4-hydroxypiperidine-1-carboxylat-
e (63E, 58 mg, 0.15 mmol) and AIBN (4.9 mg, 0.03 mmol) in toluene
(5 mL) was added Tributyltin hydride (65.1 mg, 0.223 mmol) at r.t.
under N.sub.2. The reaction mixture was stirred at 90.degree. C.
for 8 h, when TLC showed that the reaction was complete. The
reaction mixture was concentrated in vacuo to afford 63F. .sup.1H
NMR (CHLOROFORM-d) .delta. 6.82 (s, 1H), 3.84 (s, 2H), 3.16 (s,
2H), 3.06 (s, 2H), 2.48 (s, 3H), 1.77 (s, 2H), 1.58 (s, 2H), 1.47
(s, 9H) LC-MS: m/z 313.2 (M+H).sup.+.
Step F:
[1106] To a solution of tert-butyl
4-hydroxy-4-((3-methylisothiazol-5-yl)methyl)piperidine-1-carboxylate
(63F, 55 mg) in DCM (5 mL), was added TFA (1 mL), the reaction
mixture was stirred at room temperature for about 2 hours, when
LCMS detected no s.m. The reaction mixture was concentrated to
afford the desired product 63G, which was used for the next step
directly without further purification. LC-MS: m/z 213.2
(M+H).sup.+.
[1107] The following compounds were prepared according to General
Procedure 63.
Step G: Compound 511
N-(4-(4-hydroxy-4-((3-methylisothiazol-5-yl)methyl)piperidine-1-carbonyl)-
phenyl)quinoxaline-5-sulfonamide
##STR00779##
[1109] To a solution of 4-(quinoxaline-5-sulfonamido)benzoic acid
(0.18 mmol) in DCM (5 mL) was added HBTU (80 mg, 0.22 mmol), DIPEA
(70 mg, 0.54 mmol) and
4-((3-methylisothiazol-5-yl)methyl)piperidin-4-ol (7, 38 mg, 0.18
mmol), sequentially at room temperature. The reaction mixture was
stirred at room temperature for 1 hour. The mixture was poured into
water and extracted with EtOAc (20 mL) twice. The combined organic
layer was washed with brine and dried over anhy. Na.sub.2SO.sub.4,
concentrated in vacuo, and purified by standard methods to afford
511. .sup.1H NMR (CHLOROFORM-d) .delta. 9.08 (s, 2H), 8.45 (dd,
J=7.3, 1.3 Hz, 1H), 8.36 (dd, J=8.5, 1.4 Hz, 1H), 8.01 (s, 1H),
7.85 (dd, J=8.4, 7.4 Hz, 1H), 7.19 (d, J=8.4 Hz, 2H), 7.09 (d,
J=8.4 Hz, 2H), 6.82 (s, 1H), 4.40 (s, 1H), 3.38 (m, 3H), 3.07 (s,
2H), 2.50 (s, 3H), 1.53 (s, 4H). LC-MS: m/z 524.52 (M+H).sup.+
[1110] The following compounds were prepared according to General
Procedure 6, Step C).
Compound 473:
N-(4-(4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)-3-(difluorome-
thoxy)phenyl)benzo[d]thiazole-4-sulfonamide
##STR00780##
[1112] .sup.1H NMR (CHLOROFORM-d) .delta. 9.31 (s, 1H), 8.22 (d,
J=8.3 Hz, 1H), 8.12 (d, J=6.7 Hz, 1H), 8.04 (s, 1H), 7.57 (t, J=7.8
Hz, 1H), 7.09 (d, J=7.8 Hz, 1H), 6.92-7.04 (m, 2H), 6.35 (t, J=72
Hz, 1H), 4.42 (br. s., 1H), 3.20 (br. s., 3H), 1.96 (br. s., 2H),
1.55-1.70 (m, 7H), 1.43-1.53 (m, 2H). LC-MS: m/z 576.1
(M+H).sup.+
Compound 477:
N-(3-cyano-4-(4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)phenyl-
)benzo[d]thiazole-4-sulfonamide
##STR00781##
[1114] .sup.1H NMR (CHLOROFORM-d) .delta. 1.55-1.70 (m, 9H)
1.87-2.04 (m, 2H) 3.12-3.33 (m, 2H) 3.43 (br. s., 1H) 4.43 (d,
J=12.63 Hz, 1H) 7.24 (d, J=8.33 Hz, 1H) 7.36-7.48 (m, 2H) 7.60 (t,
J=7.79 Hz, 1H) 8.14 (d, J=7.52 Hz, 1H) 8.21-8.32 (m, 2H) 9.33 (s,
1H). LC-MS: m/z 535.1 (M+H).sup.+
Compound 469:
N-(4-(4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)-3-fluoropheny-
l)benzo[d]thiazole-4-sulfonamide
##STR00782##
[1116] .sup.1H NMR (CHLOROFORM-d) .delta. 1.31 (s, 1H) 1.51-1.72
(m, 8H), 1.87-2.04 (m, 2H), 3.20 (dd, J=12.22, 9.27 Hz, 2H), 3.37
(s, 1H), 4.31 (d, J=13.43 Hz, 1H), 6.95-7.08 (m, 2H), 7.14 (t,
J=8.06 Hz, 1H), 7.62 (t, J=7.79 Hz, 1H), 8.17 (dd, J=7.52, 1.07 Hz,
1H), 8.37 (dd, J=8.19, 0.94 Hz, 1H), 9.48 (s, 1H). LC-MS: m/z 528.1
(M+H).sup.+
Compound 491:
2-amino-N-(3-cyano-4-(4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carbony-
l)phenyl)-6-fluorobenzo[d]thiazole-4-sulfonamide
##STR00783##
[1118] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 1.47-1.69
(m, 9H), 1.86-2.07 (m, 2H), 3.08-3.20 (m, 1H), 3.20-3.29 (m, 1H),
3.36-3.47 (m, 1H), 4.37 (d, J=12.89 Hz, 1H), 7.37 (d, J=8.33 Hz,
1H), 7.44-7.62 (m, 3H), 7.68 (dd, J=7.92, 2.55 Hz, 1H). LC-MS: m/z
568.1 (M+H).sup.+
Compound 483:
2-amino-N-(4-(4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)-3-flu-
orophenyl)-6-fluorobenzo[d]thiazole-4-sulfonamide
##STR00784##
[1120] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 1.45-1.73
(m, 9H), 1.87-2.05 (m, 2H), 3.17-3.29 (m, 2H), 3.37 (s, 1H), 4.33
(d, J=13.16 Hz, 1H), 7.03 (d, J=9.40 Hz, 2H), 7.21 (t, J=7.66 Hz,
1H), 7.52 (dd, J=8.60, 2.69 Hz, 1H), 7.66 (dd, J=8.06, 2.69 Hz,
1H). LC-MS: m/z 561.1 (M+H).sup.+
Compound 459:
N-(4-(4-((2,2-difluorocyclopropyl)methyl)-4-hydroxypiperidine-1-carbonyl)-
phenyl)benzo[d]thiazole-4-sulfonamide
##STR00785##
[1122] .sup.1H NMR (CHLOROFORM-d) .delta. 9.31 (s, 1H), 8.19 (d,
J=8.1 Hz, 1H), 8.10 (d, J=6.7 Hz, 1H), 7.94 (s, 1H), 7.54 (t, J=7.9
Hz, 1H), 7.16-7.25 (m, J=8.3 Hz, 2H), 7.05-7.16 (m, J=8.6 Hz, 2H),
4.38 (br. s., 1H), 3.35 (br. s., 2H), 3.23 (br. s., 1H), 1.60 (s,
3H), 1.63 (s, 2H), 1.48-1.57 (m, 4H), 0.91-1.02 (m, 1H). LC-MS: m/z
508.6 (M+H).sup.+
Compound 454:
4-hydroxy-N-(4-(4-hydroxy-4-(4,4,4-trifluorobutyl)piperidine-1-carbonyl)p-
henyl)quinazoline-8-sulfonamide
##STR00786##
[1124] .sup.1H NMR (DMSO-d.sub.6) .delta. 8.35 (td, J=7.8, 1.5 Hz,
2H), 8.26 (s, 1H), 7.62 (t, J=7.8 Hz, 1H), 7.19 (d, J=8.4 Hz, 2H),
7.12 (d, J=8.4 Hz, 2H), 4.37 (s, 1H), 4.05 (s, 1H), 3.0-3.3 (m,
3H), 2.21 (m, 2H), 1.36-1.53 (m, 8H). LC-MS: m/z 539.1
(M+H).sup.+
Compound 453
##STR00787##
[1126] .sup.1H NMR (400 MHz, MeOD) .delta.: 8.40 (td, J=7.8, 1.5
Hz, 2H), 8.28 (s, 1H), 7.59 (t, J=7.8 Hz, 1H), 7.24 (s, 4H), 4.28
(s, 1H), 3.38 (d, J=8.4 Hz, 2H), 3.20 (d, J=3.6 Hz, 1H), 2.34-2.20
(m, 2H), 1.66-1.72 (m, 4H), 1.45-1.55 (m, 2H). LC-MS: m/z 525.5
(M+H).sup.+
Compound 455:
N-(4-(4-(2,3-difluorophenyl)-4-hydroxypiperidine-1-carbonyl)phenyl)-4-hyd-
roxyquinazoline-8-sulfonamide
##STR00788##
[1128] .sup.1H NMR (CHLOROFORM-d) .delta. 8.41 (dt, J=7.7, 1.8 Hz,
2H), 8.28 (s, 1H), 7.59 (t, J=7.8 Hz, 1H), 7.42 (t, J=6.8 Hz, 1H),
7.31-7.24 (m, 4H), 7.18 (pd, J=8.5, 3.6 Hz, 2H), 4.50 (s, 1H), 3.53
(s, 2H), 3.30-3.20 (m, 1H), 2.22 (d, J=57.2 Hz, 2H), 1.73 (d,
J=58.7 Hz, 2H). LC-MS: m/z 541.42 (M+H).sup.+
[1129] The following compounds were prepared according to General
Procedure 8, step E.
Compound 478:
N-(4-(4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)-3-fluoropheny-
l)quinoxaline-5-sulfonamide
##STR00789##
[1131] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta. 1.45-1.67 (m,
10H), 1.84-2.04 (m, 2H), 3.08-3.30 (m, 2H), 3.34 (br. s., 1H), 4.39
(d, J=13.16 Hz, 1H), 6.73-6.86 (m, 1 H), 6.98 (dd, J=10.75, 1.61
Hz, 1H), 7.13 (t, J=7.79 Hz, 1H), 7.89 (dd, J=8.33, 7.52 Hz, 1H),
8.14 (s, 1H), 8.39 (dd, J=8.46, 1.21 Hz, 1H), 8.49 (dd, J=7.25,
1.34 Hz, 1H), 9.03-9.12 (m, 2H). LC-MS: m/z 523.5 (M+H).sup.+
Compound 464:
N-(4-(4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)-3-(difluorome-
thoxy)phenyl)quinoxaline-5-sulfonamide
##STR00790##
[1133] .sup.1H NMR (DMSO-d.sub.6) .delta. 10.84 (br. s., 1H), 9.12
(dd, J=7.5, 1.9 Hz, 2H), 8.52 (d, J=6.2 Hz, 1H), 8.35-8.42 (m, 1H),
7.97-8.05 (m, 1H), 7.11 (br. s., 1H), 7.00 (s, 1H), 6.99 (t, J=72
Hz, 1H), 6.93-6.97 (m, 1H), 4.42 (s, 1H), 4.12 (d, J=12.9 Hz, 1H),
3.12 (br. s., 1H), 3.01 (br. s., 1H), 2.93 (br. s., 1H), 1.87 (br.
s., 2H), 1.58 (t, J=18.9 Hz, 3H), 1.47 (br. s., 2H), 1.25-1.27 (br.
s., 2H), 1.26 (m, 2H). LC-MS: m/z 535.32 (M+H).sup.+
[1134] The following compounds were prepared according to General
Procedure 44, Step E.
Compound 452:
(E)-2-amino-N-(4-(4-hydroxy-4-(4,4,4-trifluorobut-1-enyl)piperidine-1-car-
bonyl)phenyl)benzo[d]thiazole-4-sulfonamide
##STR00791##
[1136] .sup.1H NMR (DMSO-d.sub.6) .delta. 7.68-7.83 (m, 2H),
7.17-7.33 (m, 4H), 7.07 (t, J=7.8 Hz, 1H), 5.89 (d, J=15.6 Hz, 1H),
5.71 (dt, J=15.5, 7.0 Hz, 1H), 4.28 (br. s., 1H), 3.43 (br. s.,
1H), 3.37 (s, 1H), 3.25 (d, J=7.8 Hz, 1H), 2.83-3.06 (m, 2H), 1.64
(br. s., 3H), 1.48 (br. s., 1H). LC-MS: m/z 555.5 (M+H).sup.+
Compound 451:
(E)-4-hydroxy-N-(4-(4-hydroxy-4-(4,4,4-trifluorobut-1-enyl)piperidine-1-c-
arbonyl)phenyl)quinazoline-8-sulfonamide
##STR00792##
[1138] .sup.1H NMR (400 MHz, MeOD) .delta.: 8.42 (dd, J=7.9, 1.5
Hz, 1H), 8.34 (dd, J=7.7, 1.5 Hz, 1H), 8.20 (s, 1H), 7.53 (t, J=7.8
Hz, 1H), 7.44 (s, 1H), 7.11-7.23 (m, 4H), 5.72-5.82 (m, 1H),
5.59-5.72 (m, 1H), 3.42 (br. s., 2H), 3.37 (s, 1H), 2.82 (dd,
J=10.3, 7.1 Hz, 2H), 1.66 (br. s., 2H), 1.49 (br. s., 2H). LC-MS:
m/z 537.6 (M+H).sup.+
[1139] The following compounds were prepared according to General
Procedure 46, Step E.
Compound 445:
2-amino-N-(4-(4-hydroxy-4-(4,4,4-trifluorobutyl)piperidine-1-carbonyl)phe-
nyl)benzo[d]thiazole-4-sulfonamide
##STR00793##
[1141] .sup.1H NMR (400 MHz, MeOD) .delta.: 1.28-1.41 (m, 4H),
1.44-1.59 (m, 23H), 1.60-1.72 (m, 1411), 2.09-2.23 (m, 9H), 3.22
(br. s., 5H), 3.40 (br. s., 711), 4.25 (br. s., 4H), 7.07 (t,
J=7.79 Hz, 5H), 7.19-7.25 (m, 19H), 7.73 (dd, J=7.79, 1.07 Hz, 5H),
7.79 (dd, J=7.79, 1.07 Hz, 5H). LC-MS: m/z 543.7 (M+H).sup.+
Compound 457:
2-amino-N-(4-(4-hydroxy-4-(3,3,3-trifluoropropyl)piperidine-1-carbonyl)ph-
enyl)benzo[d]thiazole-4-sulfonamide
##STR00794##
[1143] .sup.1H NMR (400 MHz, MeOD) .delta.: 7.79 (dd, J=7.8, 1.1
Hz, 1H), 7.73 (dd, J=7.8, 1.0 Hz, 1H), 7.27-7.19 (m, 4H), 7.07 (t,
J=7.8 Hz, 1H), 4.28 (s, 1H), 3.42 (s, 1H), 3.26-3.12 (m, 2H),
2.34-2.21 (m, 2H), 1.70 (dd, J=11.4, 5.6 Hz, 2H), 1.49 (s, 2H),
1.38 (t, J=6.2 Hz, 2H). LC-MS: m/z 529.5 (M+H).sup.+
Compound 447:
2-amino-N-(4-(4-(2,3-difluorophenyl)-4-hydroxypiperidine-1-carbonyl)pheny-
l)benzo[d]thiazole-4-sulfonamide
##STR00795##
[1145] .sup.1H NMR (CHLOROFORM-d) .delta. 7.76 (ddd, J=16.2, 7.8,
1.2 Hz, 2H), 7.45-7.39 (m, 1H), 7.31-7.21 (m, 4H), 7.17 (tdd,
J=11.4, 7.4, 3.7 Hz, 2H), 7.07 (t, J=7.8 Hz, 1H), 4.51 (d, J=12.2
Hz, 1H), 3.54 (s, 2H), 3.27 (s, 1H), 2.23 (d, J=52.7 Hz, 2H), 1.74
(dd, J=67.6, 12.8 Hz, 2H). LC-MS: m/z 545.73 (M+H).sup.+
Compound 463
2-amino-N-(4-(4-(3,3-difluorobutyl)-4-hydroxypiperidine-1-carbonyl)phenyl-
)-6-fluorobenzo[d]thiazole-4-sulfonamide
##STR00796##
[1147] .sup.1H NMR (DMSO-d.sub.6) .delta. 10.26 (s, 1H), 7.94 (d,
J=5.6 Hz, 1H), 7.90 (s, 2H), 7.45 (dd, J=8.9, 2.7 Hz, 1H),
7.21-7.27 (m, J=8.6 Hz, 2H), 7.10-7.17 (m, J=8.6 Hz, 2H), 4.43 (s,
1H), 4.10 (br. s., 1H), 3.26 (br. s., 2H), 3.08 (br. s., 1H), 1.89
(br. s., 2H), 1.59 (t, J=18.8 Hz, 3H), 1.49 (d, J=11.0 Hz, 2H),
1.39 (br. s., 2H), 1.24-1.27 (m, 2H). LC-MS: m/z 543.5
(M+H).sup.+
[1148] The following compounds were prepared according to General
Procedure 48.
Compound 515:
N-(4-(4-hydroxy-4-(isothiazol-5-yl)piperidine-1-carbonyl)phenyl)benzo[d]t-
hiazole-4-sulfonamide
##STR00797##
[1150] .sup.1H NMR (400 MHz, MeOD) .delta.: 1.83 (br. s., 1H), 2.00
(br. s., 3H), 3.50 (br. s., 3H), 4.46 (br. s., 1H), 7.13-7.30 (m,
5H), 7.58 (t, J=7.79 Hz, 1H), 8.13 (dd, J=7.66, 0.94 Hz, 1H),
8.28-8.43 (m, 2H), 9.49 (s, 1H). LC-MS: m/z 501.4 (M+H).sup.+
Compound 528
N-(4-(4-hydroxy-4-(3-methylisothiazol-5-yl)piperidine-1-carbonyl)phenyl)b-
enzo[d]thiazole-4-sulfonamide
##STR00798##
[1152] .sup.1H NMR (CHLOROFORM-d) .delta. 9.31 (s, 1H), 8.20 (d,
J=8.1 Hz, 1H), 8.10 (d, J=7.5 Hz, 1H), 7.96 (s, 1H), 7.55 (t, J=7.9
Hz, 1H), 7.23 (d, J=8.5 Hz, 2H), 7.13 (d, J=8.5 Hz, 2H), 6.89 (s,
1H), 4.55 (s, 1H), 3.69-3.23 (m, 3H), 2.56 (s, 3H), 2.19-1.69 (m,
4H). LC-MS: m/z 515.48 (M+H).sup.+
Compound 518:
N-(4-(4-hydroxy-4-(3-methylisothiazol-5-yl)piperidine-1-carbonyl)phenyl)q-
uinoxaline-5-sulfonamide
##STR00799##
[1154] .sup.1H NMR (CHLOROFORM-d) .delta. 9.12 (d, J=1.8 Hz, 1H),
9.03 (d, J=1.8 Hz, 1H), 8.51 (dd, J=7.4, 1.3 Hz, 1H), 8.32 (dd,
J=8.5, 1.3 Hz, 1H), 7.92 (dd, J=8.4, 7.5 Hz, 1H), 7.29-7.16 (m,
4H), 7.01 (s, 1H), 4.44 (s, 1H), 3.48 (s, 2H), 3.24 (s, 1H), 2.42
(s, 3H), 1.89 (m, 4H). LC-MS: m/z 510.5 (M+H).sup.+
Compound 480:
N-(4-(4-(4-chlorothiazol-5-yl)-4-hydroxypiperidine-1-carbonyl)phenyl)benz-
o[d]thiazole-4-sulfonamide
##STR00800##
[1156] .sup.1H NMR (CHLOROFORM-d) .delta. 9.32 (s, 1H), 8.61 (s,
1H), 8.20 (dd, J=8.1, 1.0 Hz, 1H), 8.11 (dd, J=7.6, 1.0 Hz, 1H),
7.97 (s, 1H), 7.55 (t, J=7.8 Hz, 1H), 7.26-7.19 (m, 2H), 7.16-7.10
(m, 2H), 4.60 (s, 1H), 3.63 (s, 1H), 3.36 (d, J=63.1 Hz, 2H), 2.30
(s, 2H), 1.97 (s, 2H). LC-MS: m/z 535.32 (M+H).sup.+
Compound 516:
N-(4-(4-(4-chloroisothiazol-5-yl)-4-hydroxypiperidine-1-carbonyl)phenyl)q-
uinoxaline-5-sulfonamide
##STR00801##
[1158] .sup.1H NMR (CHLOROFORM-d) .delta. 9.08 (s, 2H), 8.46 (d,
J=6.7 Hz, 1H), 8.36 (d, J=8.3 Hz, 1H), 8.26 (s, 1H), 8.04 (s, 1H),
7.86 (t, J=7.8 Hz, 1H), 7.24 (d, J=6.2 Hz, 2H), 7.06-7.18 (m, 2H),
4.60 (br. s., 1H), 3.62 (br. s., 1H), 3.45-3.56 (m, 1H), 3.23 (br.
s., 1H), 2.37 (br. s., 1H), 2.19 (s, 1H), 1.87 (br. s., 2H). LC-MS:
m/z 530.5 (M+H).sup.+
Compound 522:
N-(4-(4-(4-chloroisothiazol-5-yl)-4-hydroxypiperidine-1-carbonyl)phenyl)b-
enzo[d]thiazole-4-sulfonamide
##STR00802##
[1160] .sup.1H NMR (METHANOL-d.sub.4) .delta. 9.50 (s, 1H), 8.34
(dd, J=8.2, 0.9 Hz, 1H), 8.29 (s, 1H), 8.13 (dd, J=7.8, 1.1 Hz,
1H), 7.58 (t, J=7.9 Hz, 1H), 7.17-7.27 (m, 4H), 4.52 (br. s., 1H),
3.50 (br. s., 2H), 3.21 (br. s., 1H), 2.72 (br. s., 1H), 2.44 (br.
s., 1H), 2.30 (br. s., 1H), 1.70 (br. s., 2H). LC-MS: m/z 535.5
(M+H).sup.+
[1161] The following compounds were prepared according procedures
described herein.
TABLE-US-00005 Compound LC-MS: m/z ID Structure (M + H).sup.+ 492
##STR00803## 530.6 505 ##STR00804## 525.6 526 ##STR00805## 628.6
477 ##STR00806## 535.6 471 ##STR00807## 469.6 510 ##STR00808##
531.0 474 ##STR00809## 505.6 472 ##STR00810## 510.6 503
##STR00811## 521.6 504 ##STR00812## 530.7 507 ##STR00813## 507.6
490 ##STR00814## 519.6 467 ##STR00815## 485.6 481 ##STR00816##
536.1 509 ##STR00817## 536.1 485 ##STR00818## 530.7 487
##STR00819## 529.6 470 ##STR00820## 519.6 496 ##STR00821## 510.6
506 ##STR00822## 526.6 495 ##STR00823## 515.6 446 ##STR00824##
512.0 484 ##STR00825## 524.6 476 ##STR00826## 518.7 466
##STR00827## 524.6 488 ##STR00828## 529.6 450 ##STR00829## 498.6
449 ##STR00830## 457.6 460 ##STR00831## 485.6 475 ##STR00832##
513.6 524 ##STR00833## 554.6 525 ##STR00834## 549.5 494
##STR00835## 545.0 529 ##STR00836## 473.6 517 ##STR00837## 496.1
523 ##STR00838## 577.6
[1162] Having thus described several aspects of several
embodiments, it is to be appreciated various alterations,
modifications, and improvements will readily occur to those skilled
in the art. Such alterations, modifications, and improvements are
intended to be part of this disclosure, and are intended to be
within the spirit and scope of the invention. Accordingly, the
foregoing description and drawings are by way of example only.
* * * * *