U.S. patent application number 12/688428 was filed with the patent office on 2010-08-26 for rho-kinase inhibitors.
Invention is credited to Davoud Asgari, Barry Hart, Uday Khire, Xiao-Gao Liu, Mark Lynch, Dhanapalan NAGARATHNAM, Jianxing Shao, Chunguang Wang, Lei Wang, Olaf Weber, Lei Zhang.
Application Number | 20100216789 12/688428 |
Document ID | / |
Family ID | 23360296 |
Filed Date | 2010-08-26 |
United States Patent
Application |
20100216789 |
Kind Code |
A1 |
NAGARATHNAM; Dhanapalan ; et
al. |
August 26, 2010 |
RHO-KINASE INHIBITORS
Abstract
Disclosed are compounds and derivatives thereof, their
synthesis, and their use as Rho-kinase inhibitors. These compounds
of the present invention are useful for inhibiting tumor growth,
treating erectile dysfunction, and treating other indications
mediated by Rho-kinase, e.g., coronary heart disease.
Inventors: |
NAGARATHNAM; Dhanapalan;
(Bethany, CT) ; Khire; Uday; (Hamden, CT) ;
Asgari; Davoud; (Plainsboro, NJ) ; Shao;
Jianxing; (Cheshire, CT) ; Liu; Xiao-Gao; (New
Haven, CT) ; Wang; Chunguang; (Hamden, CT) ;
Hart; Barry; (Mountain View, CA) ; Weber; Olaf;
(Woodbridge, CT) ; Lynch; Mark; (Madison, CT)
; Zhang; Lei; (Hamden, CT) ; Wang; Lei;
(New Haven, CT) |
Correspondence
Address: |
MILLEN, WHITE, ZELANO & BRANIGAN, P.C.
2200 CLARENDON BLVD., SUITE 1400
ARLINGTON
VA
22201
US
|
Family ID: |
23360296 |
Appl. No.: |
12/688428 |
Filed: |
January 15, 2010 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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11733045 |
Apr 9, 2007 |
7648986 |
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12688428 |
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10339393 |
Jan 10, 2003 |
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11733045 |
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60346628 |
Jan 10, 2002 |
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Current U.S.
Class: |
514/234.2 ;
514/245; 514/249; 514/252.16; 514/260.1; 514/264.11; 544/117;
544/212; 544/278 |
Current CPC
Class: |
A61P 11/06 20180101;
C07D 471/04 20130101; A61P 35/04 20180101; C07D 495/04 20130101;
A61P 9/12 20180101; A61P 35/00 20180101; A61P 25/00 20180101; A61P
27/06 20180101; A61P 43/00 20180101; A61P 15/10 20180101; A61P 9/10
20180101; A61P 7/02 20180101; A61P 19/10 20180101; C07D 491/04
20130101 |
Class at
Publication: |
514/234.2 ;
544/278; 514/260.1; 544/117; 514/252.16; 514/249; 514/264.11;
544/212; 514/245 |
International
Class: |
A61K 31/519 20060101
A61K031/519; C07D 495/04 20060101 C07D495/04; A61K 31/5377 20060101
A61K031/5377; A61K 31/53 20060101 A61K031/53; C07D 513/04 20060101
C07D513/04; A61P 9/12 20060101 A61P009/12; A61P 9/10 20060101
A61P009/10; A61P 15/10 20060101 A61P015/10 |
Claims
1. A compound of formula I ##STR00279## wherein X is
--(CH.sub.2).sub.x--, --O--(CH.sub.2).sub.n--,
--S--(CH.sub.2).sub.n--, --NR.sub.7--CO--(CH.sub.2).sub.n--,
--NR.sub.7--SO.sub.2--(CH.sub.2).sub.n--,
--NR.sub.7--(CH.sub.2).sub.n--, or --(O)C--NR.sub.7--, each n is an
integer which is independently 0, 1, 2 or 3, x is 0-3 p is 0-3 a
and c are each independently --CR.sub.5.dbd., --N.dbd., or
--NR.sub.6--, wherein one of a or c is --NR.sub.6--, and b is
--CR.sub.5.dbd. or --N.dbd.; A is H, halogen, --CO--OR.sub.8,
--CO--R.sub.8, cyano, --OR.sub.8, --NR.sub.8R.sub.9,
--CO--NR.sub.8R.sub.9, --NR.sub.8--CO--R.sub.9,
--NR.sub.8--CO--OR.sub.9, --NR.sub.8--SO.sub.2--R.sub.9,
--SR.sub.8, --SO.sub.2--R.sub.8, --SO.sub.2--NR.sub.8R.sub.9,
NR.sub.8--CO--NHR.sub.9, or A is cyclohexyl; or C.sub.5-12-aryl or
C.sub.5-12-heteroaryl each optionally independently substituted up
to 3 times by (i) C.sub.1-C.sub.10 alkyl or
C.sub.2-C.sub.10-alkenyl, each optionally substituted with halogen
up to perhalo; (ii) C.sub.3-C.sub.10 cycloalkyl; (iii) aryl; (iv)
heteroaryl; (v) halogen; (vi) --CO--OR.sub.8; (vii) --CO--R.sub.8;
(viii) cyano; (ix) --OR.sub.8, (x) --NR.sub.8R.sub.13; (xi) nitro;
(xii) --CO--NR.sub.8R.sub.9; (xiii)
--C.sub.1-10-alkyl-NR.sub.8R.sub.9; (xiv) --NR.sub.8--CO--R.sub.12;
(xv) --NR.sub.8--CO--OR.sub.9; (xvi) --NR.sub.8--SO.sub.2--R.sub.9;
(xvii) --SR.sub.8; (xviii) --SO.sub.2--R.sub.8; (xix)
--SO.sub.2--NR.sub.8R.sub.9; (xx) --NR.sub.8--CO--NHR.sub.9; or
(xxi) aryl or heteroaryl substituted by halogen, C.sub.1-10-alkyl,
C.sub.1-10-alkoxyphenyl, naphthyl, --OR.sub.10, ##STR00280##
wherein each Z independently is halogen, hydroxy,
hydroxy-C.sub.1-10-alkyl, --CN, --NO.sub.2,
C.sub.1-10-alkoxycarboxyl, --NR.sub.10--CO--R.sub.11 or
--NR.sub.10--CO--OR.sub.11; Y is 0-3; Ring B represents a fused 5-
or 6-membered heterocyclic ring containing 1-2 O,N, and/or S atoms
and 1-5 C atoms; R.sub.1, and R.sub.6-R.sub.11 are each
independently H and C.sub.1-6 alkyl; R.sub.2-R.sub.5 are each
independently (i) C.sub.1-10 alkyl or C.sub.2-10-alkenyl each
optionally substituted by amino, N-lower alkylamino, N,N-dilower
alkylamino, N-lower alkanoylamino, hydroxy, cyano, --COOR.sub.10,
--COR.sub.14, --OCOR.sub.14, --OR.sub.10, C.sub.5-10-heteroaryl,
C.sub.5-10-heteroaryloxy, C.sub.5-10-heteroaryl-C.sub.1-10-alkoxy
or halogen up to perhalo; (ii) C.sub.3-C.sub.10 cycloalkyl, in
which 1-3 carbon atoms are optionally independently replaced by O,
N or S; (iii) C.sub.3-10-cycloalkenyl; (iv) partially unsaturated
C.sub.5-10-heterocyclyl; (v) aryl; (vi) heteroaryl; (vii) halogen;
(viii) --CO--OR.sub.10; (ix) --OCOR.sub.10; (x)
--OCO.sub.2R.sub.10; (xi) --CHO; (xii) cyano; (xiii) --OR.sub.16;
(xiv) --NR.sub.10R.sub.15; (xv) nitro; (xvi)
--CO--NR.sub.10R.sub.11; (xvii) --NR.sub.10--CO--R.sub.12; (xviii)
--NR.sub.10--CO--OR.sub.11; (xix) --NR.sub.10--SO.sub.2--R.sub.12;
(xx) --SR.sub.16; (xxi) --SOR.sub.16; (xxii) --SO.sub.2--R.sub.16;
(xxiii) --SO.sub.2--NR.sub.10R.sub.11; (xxiv)
NR.sub.10--CO--NHR.sub.11; (xxv) amidino; (xxvi) guanidino; (xxvii)
sulfo; (xxviii) --B(OH).sub.2; (xxix) --OCON(R.sub.10).sub.2; or
(xxx) --NR.sub.10COON(R.sub.10).sub.2; R.sub.12 is H,
C.sub.1-6-alkyl or C.sub.5-10-aryl, R.sub.13 is H, C.sub.1-6-alkyl
or C.sub.1-6-alkoxy, R.sub.14 is lower alkyl or phenyl; R.sub.15 is
lower alkyl, halogen, amino, N-lower alkyl amino, N,N-dilower
alkylamino, N-lower alkanoylamino, OH, CN, COOR.sub.10,
--COR.sub.14 or --OCOR.sub.14; R.sub.16 is hydrogen,
C.sub.1-6-alkyl optionally substituted by halogen, up to perhalo,
or C.sub.5-10-heteroaryl; R.sub.15' is H; phenyl optionally
substituted by C.sub.1-10-alkyl, C.sub.1-10-alkoxy,
C.sub.1-10-alkylcarboxyl, or halogen; benzyl; pyrimidyl or pyridyl;
and R.sub.16' is H, phenyl, --COOR.sub.10; ##STR00281## or a
pharmaceutically acceptable salt thereof, with the provisos that A
is not hydrogen when x is 0; --X-A is not CH.sub.3 when B
represents a thieno[3,2b]fused ring, and b and c are
--CR.sub.5.dbd., and a is NH; and A is not phenyl when X is NH, B
forms an imidazo fused ring, and -a-b-c- is
--CR.sub.5.dbd.N--NR.sub.6-- or --NR.sub.6.dbd.N--CR.sub.5--.
2. The compound according to claim 1, wherein A is 2- or 3-furyl,
2- or 3-thienyl, 2- or 4-triazinyl, 1-, 2- or 3-pyrrolyl, 1-, 2-,
4- or 5-imidazolyl, 1-, 3-, 4- or 5-pyrazolyl, 2-, 4- or
5-oxazolyl, 3-, 4- or 5-isoxazolyl, 2-, 4- or 5-thiazolyl, 3-, 4-
or 5-isothiazolyl, 2-, 3- or 4-pyridyl, 2-, 4-, 5- or
6-pyrimidinyl, 1,2,3-triazol-1-, -4- or 5-yl, 1,2,4-triazol-1-, -3-
or B5-yl, 1- or 5-tetrazolyl, 1,2,3-oxadiazol-4- or 5-yl,
1,2,4-oxadiazol-3- or 5-yl, 1,3,4-thiadiazol-2- or 5-yl,
1,2,4-oxadiazol-3- or 5-yl, 1,3,4-thiadiazol-2- or 5-yl,
1,3,4-thiadiazol-3- or 5-yl, 1,2,3-thiadiazol-4- or 5-yl, 2-, 3-,
4-, 5- or 6-2H-thiopyranyl, 2-, 3- or 4-4H-thiopyranyl, 3- or
4-pyridazinyl, pyrazinyl, 2-, 3-, 4-, 5-, 6- or 7-benzofuryl, 2-,
3-, 4-, 5-, 6- or 7-benzothienyl, 1-, 2-, 3-, 4-, 5-, 6- or
7-indolyl, 1-, 2-, 4- or 5-benzimidazolyl, 1-, 3-, 4-, 5-, 6- or
7-benzopyrazolyl, 2-, 4-, 5-, 6- or 7-benzoxazolyl, 3-, 4-, 5- 6-
or 7-benzisoxazolyl, 1-, 3-, 4-, 5-, 6- or 7-benzothiazolyl, 2-,
4-, 5-, 6- or 7-benzisothiazolyl, 2-, 4-, 5-, 6- or
7-benz-1,3-oxadiazolyl, 2-, 3-, 4-, 5-, 6-, 7- or 8-quinolinyl, 1-,
3-, 4-, 5-, 6-, 7-, 8-isoquinolinyl, 1-, 2-, 3-, 4- or
9-carbazolyl, 1-, 2-, 3-, 4-, 5-, 6-, 7-, 8- or 9-acridinyl, or 2-,
4-, 5-, 6-, 7- or 8-quinazolinyl, or additionally optionally
substituted phenyl, 2- or 3-thienyl, 1,3,4-thiadiazolyl, 3-pyrryl,
3-pyrazolyl, 2-thiazolyl or 5-thiazolyl.
3. The compound according to claim 1 wherein A is phenyl, pyridyl,
pyrimidinyl, oxazolyl, furyl, thienyl, pyrrolyl, imidazolyl,
isoxazolyl or pyrazinyl, each independently substituted up to three
times by halogen, C.sub.1-10-alkyl, C.sub.1-10-alkoxyphenyl,
naphthyl, --OR.sub.10, ##STR00282## wherein each Z independently is
halogen, hydroxy, hydroxy-C.sub.1-10-alkyl, --CN, --NO.sub.2,
C.sub.1-10-alkoxycarboxyl, --NR.sub.10--CO--R.sub.11, or
--NR.sub.10--CO--OR.sub.11, and y is 0-3.
4. The compound according to claim 1 wherein A is ##STR00283##
wherein R.sub.15' is H; phenyl optionally substituted by
C.sub.1-10-alkyl, C.sub.1-10-alkoxy, C.sub.1-10-alkylcarboxyl, or
halogen; benzyl; pyrimidyl or pyridyl; and R.sub.16' is H, phenyl,
--COOR.sub.10, ##STR00284##
5. A compound of the formula ##STR00285## wherein Ar.sub.1 is
##STR00286## ##STR00287## ##STR00288## ##STR00289##
6. A compound of the formula ##STR00290## ##STR00291## ##STR00292##
##STR00293##
7. (canceled)
8. (canceled)
9. A compound of the formula ##STR00294## wherein Ar is
3-aminophenyl, 3-isonicotinamido-phenyl, 5-(1H-indolyl)amino, or
4-phenoxyanilino.
10. (canceled)
11. A compound of the formula ##STR00295## ##STR00296##
##STR00297## ##STR00298## ##STR00299## ##STR00300## ##STR00301##
##STR00302## ##STR00303## ##STR00304## ##STR00305## ##STR00306##
##STR00307## ##STR00308## ##STR00309## ##STR00310## ##STR00311##
##STR00312## ##STR00313## ##STR00314## ##STR00315## ##STR00316##
##STR00317## ##STR00318## ##STR00319## ##STR00320## ##STR00321##
##STR00322## ##STR00323## ##STR00324## ##STR00325## ##STR00326##
##STR00327## ##STR00328## ##STR00329## ##STR00330## ##STR00331##
##STR00332## ##STR00333## ##STR00334## ##STR00335##
12. (canceled)
13. (canceled)
14. A method of treating hypertension, atherosclerosis, restenosis,
cerebral ischemia, cerebral vasospasm, or erectile dysfunction,
comprising administering to host in need thereof a compound
according to claim 1.
15. A method of treating hypertension, atherosclerosis, restenosis,
cerebral ischemia, cerebral vasospasm, or erectile dysfunction,
comprising administering to a host in need thereof a compound
according to claim 5.
16. (canceled)
17. (canceled)
18. A process according to claim 14, wherein the host is a
human.
19. A process according to claim 15, wherein the host is a human.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to compounds and derivatives
thereof, their synthesis, and their use as Rho-kinase inhibitors.
These compounds of the present invention are useful for inhibiting
tumor growth, treating erectile dysfunction, and treating other
indications mediated by Rho-kinase, e.g., coronary heart
disease.
BACKGROUND
[0002] The pathology of a number of human and animal diseases
including hypertension, erectile dysfunction, coronary cerebral
circulatory impairments, neurodegenerative disorders and cancer can
be linked directly to changes in the actin cytoskeleton. These
diseases pose a serious unmet medical need. The actin cytoskeleton
is composed of a meshwork of actin filaments and actin-binding
proteins found in all eukaryotic cells. In smooth muscle cells the
assembly and disassembly of the actin cytoskeleton is the primary
motor force responsible for smooth muscle contraction and
relaxation. In non-muscle cells, dynamic rearrangements of the
actin cytoskeleton are responsible for regulating cell morphology,
cell motility, actin stress fiber formation, cell adhesion and
specialized cellular functions such as neurite retraction,
phagocytosis or cytokinesis (Van Aelst, et al. Genes Dev 1997, 11,
2295).
[0003] The actin cytoskeleton is controlled by a family of proteins
that are a subset of the Ras superfamily of GTPases. This subset
currently consists of RhoA through E and RhoG (refereed to
collectively as Rho), Rac 1 and 2, Cdc42Hs and G25K and TC10
isoforms (Mackay, et al. J Biol Chem 1998, 273, 20685). These
proteins are GTP (guanine nucleotide triphosphate) binding proteins
with intrinsic GTPase activity. They act as molecular switches and
cycles between inactive GDP (guanine nucleotide diphosphate) bound
and active GTP bound states. Using biochemical and genetic
manipulations, it has been possible to assign functions to each
family member. Upon activation the Rho proteins controls the
formation of actin stress fibers, thick bundles of actin filaments,
and the clustering of integrins at focal adhesion complexes. When
activated the Rac proteins control the formation of lamellopodia or
membrane ruffles on the cell surface and Cdc42 controls filopodia
formation, Together this family of proteins plays a critical part
in the control of key cellular functions including cell movement,
axonal guidance, cytokinesis, and changes in cell morphology, shape
and polarity.
[0004] Depending on the cell type and the activating receptor, the
Rho proteins can control different biological responses. In smooth
muscle cells, Rho proteins are responsible for the calcium
sensitization during smooth muscle contraction. In non-smooth
muscle cells the Rho GTPases are responsible for the cellular
responses to agonist such as lysophosphatidic acid (LPA), thrombin
and thromboxane A.sub.2 (Fukata, et al. Trends Pharcol Sci 2001,
22, 32). Agonist response is coupled through heterotrimeric G
proteins G.sub.alpha12 or G.sub.alpha13 (Goetzl, et al. Cancer Res
1999, 59, 4732; Buhl, et al. J Biol Chem 1995, 270, 24631) though
other receptors may be involved. Upon activation Rho GTPases
activate a number of downstream effectors including PIPS-kinase,
Rhothekin, Rhophilin, PKN and Rho kinase isoforms ROCK-1/ROKbeta
and ROCK-1/ROKalpha (Mackay and Hall J Biol Chem 1998, 273, 20685;
Aspenstrom Curr Opin Cell Biol 1999, 11, 95; Amano, et al. Exp Cell
Res 2000, 261, 44).
[0005] Rho kinase was identified as a RhoA interacting protein
isolated from bovine brain (Matsui, et al. Embo J 1996, 15, 2208).
It is a member of the myotonic dystrophy family of protein kinase
and contains a serine/threonine kinase domain at the amino
terminus, a coiled-coil domain in the central region and a Rho
interaction domain at the carboxy terminus (Amano, et al. Exp Cell
Res 2000, 261, 44). Its kinase activity is enhanced upon binding to
GTP-bound RhoA and when introduced into cells, it can reproduce
many of the activities of activated RhoA. In smooth muscle cells
Rho kinase mediates calcium sensitization and smooth muscle
contraction and inhibition of Rho kinase blocks 5-HT and
phenylephrine agonist induced muscle contraction. When introduced
into non-smooth muscle cells, Rho kinase induces stress fiber
formation and is required for the cellular transformation mediated
by RhoA (Sahai, et al. Curr Biol 1999, 9, 136). Rho kinase
regulates a number of downstream proteins through phosphorylation,
including myosin light chain (Somlyo, et al. J Physiol (Lond) 2000,
522 Pt 2, 177), the myosin light chain phosphatase binding subunit
(Fukata, et al. J Cell Biol 1998, 141, 409) and LIM-kinase 2 (Sumi,
et al. J Bio Chem 2001, 276, 670).
[0006] Inhibition of Rho kinase activity in animal models has
demonstrated a number of benefits of Rho kinase inhibitors for the
treatment of human diseases. Several patents have appeared claiming
(+)-trans-4-(1-aminoethyl)-1-(pyridin-4-ylaminocarbonyl)cyclohexane
dihydrochloride monohydrate (WO-00078351, WO-00057913) and
substituted isoquinolinesulfonyl (EP-00187371) compounds as Rho
kinase inhibitors with activity in animal models. These include
models of cardiovascular diseases such as hypertension (Uehata, et
al. Nature 1997, 389, 990), atherosclerosis (Retzer, et al. FEBS
Lett 2000, 466, 70), restenosis (Eto, et al. Am J Physiol Heart
Circ Physiol 2000, 278, H1744; Negoro, et al. Biochem Biophys Res
Commun 1999, 262, 211), cerebral ischemia (Uehata, et al. Nature
1997, 389, 990; Seasholtz, et al. Circ Res 1999, 84, 1186; Hitomi,
et al. Life Sci 2000, 67, 1929; Yamamoto, et al. J Cardiovasc
Pharmacol 2000, 35, 203), cerebral vasospasm (Sato, et al. Circ Res
2000, 87, 195; Kim, et al. Neurosurgery 2000, 46, 440), penile
erectile dysfunction (Chitaley, et al. Nat Med 2001, 7, 119),
central nervous system disorders such as neuronal degeneration and
spinal cord injury (Hara, et al. J Neurosurg 2000, 93, 94; Toshima,
et al. Stroke 2000, 31, 2245) and in neoplasias where inhibition of
Rho kinase has been shown to inhibit tumor cell growth and
metastasis (Itoh, et al. Nat Med 1999, 5, 221; Somlyo, et al.
Biochem Biophys Res Commun 2000, 269, 652), angiogenesis (Uchida,
et al. Biochem Biophys Res Commun 2000, 269, 633; Gingras, et al.
Biochem J 2000, 348 Pt 2, 273), arterial thrombotic disorders such
as platelet aggregation (Klages, et al. J Cell Biol 1999, 144, 745;
Retzer, et al. Cell Signal 2000, 12, 645) and leukocyte aggregation
(Kawaguchi, et al. Eur J Pharmacol 2000, 403, 203; Sanchez-Madrid,
et al. Embo J 1999, 18, 501), asthma (Setoguchi, et al. Br J
Pharmacol 2001, 132, 111; Nakahara, et al. Eur J Pharmacol 2000,
389, 103), regulation of intraoccular pressure (Honjo, et al.
Invest Opthalmol Vis Sci 2001, 42, 137) and bone resorption
(Chellaiah, et al. J Biol Chem 2000, 275, 11993; Zhang, et al. J
Cell Sci 1995, 108, 2285).
[0007] The inhibition of Rho kinase activity in patients has
benefits for controlling cerebral vasospasms and ischemia following
subarachnoid hemorrhage (Pharma Japan 1995, 1470, 16).
SUMMARY OF THE INVENTION
[0008] The compounds and their derivatives presented in this
invention are useful as Rho Kinase inhibitors and thus have
utilities in the treatment of hypertension, atherosclerosis,
restenosis, cerebral ischemia, cerebral vasospasm, neuronal
degeneration, spinal cord injury, cancers of the breast, colon,
prostate, ovaries, brain and lung and their metastases, thrombotic
disorders, asthma, glaucoma and osteoporosis.
[0009] In addition, the compounds of the invention are useful to
treat erectile dysfunction, i.e., erectile dysfunction mediated by
Rho-kinase. Erectile dysfunction can be defined as an inability to
obtain or sustain an erection adequate for intercourse, WO
94/28902, U.S. Pat. No. 6,103,765 and U.S. Pat. No. 6,124,461.
[0010] The invention provides compounds of formula I
##STR00001##
wherein X is --(CH.sub.2).sub.x--, --O--(CH.sub.2).sub.n--,
--S--(CH.sub.2).sub.n--, --NR.sub.7--CO--(CH.sub.2).sub.n--,
--NR.sub.7--SO.sub.2--(CH.sub.2).sub.n--,
--NR.sub.7--(CH.sub.2).sub.n--, or --(O)C--NR.sub.7--, each n is an
integer which is independently 0, 1, 2 or 3, x is 0-3 p is 0-3 a
and c are each independently --CR.sub.5.dbd., --N.dbd., or
--NR.sub.6--, wherein one of a or c is --NR.sub.6--, and b is
--CR.sub.5.dbd. or --N.dbd.; A is H, halogen, --CO--OR.sub.8,
--CO--R.sub.8, cyano, --OR.sub.8, --NR.sub.8R.sub.9,
--CO--NR.sub.8R.sub.9, --NR.sub.8--CO--R.sub.9,
--NR.sub.8--CO--OR.sub.9, --NR.sub.8--SO.sub.2--R.sub.9,
--SR.sub.8, --SO.sub.2--R.sub.8, --SO.sub.2--NR.sub.8R.sub.9,
NR.sub.8--CO--NHR.sub.9, or A is a 3-20 atom, preferably 5-15 atom,
cyclic or polycyclic moiety, e.g., containing 1-4 rings, which
optionally contain 1-3 N, O or S atoms per ring, and may optionally
be aryl or heteroaryl. A may optionally be substituted up to 3
times by (i) C.sub.1-C.sub.10 alkyl or C.sub.2-C.sub.10-alkenyl,
each optionally substituted with halogen up to perhalo; (ii)
C.sub.3-C.sub.10 cycloalkyl; (iii) optionally substituted aryl;
(iv) optionally substituted heteroaryl; (v) halogen; (vi)
--CO--OR.sub.8; (vii) --CO--R.sub.8; (viii) cyano; (ix) --OR.sub.8,
(x) --NR.sub.8R.sub.13; (xi) nitro; (xii) --CO--NR.sub.8R.sub.9;
(xiii) --C.sub.1-10-alkyl-NR.sub.8R.sub.9; (xiv)
--NR.sub.8--CO--R.sub.12; (xv) --NR.sub.7--CO--OR.sub.9; (xvi)
--NR.sub.7--SO.sub.2--R.sub.9; (xvii) --SR.sub.8;
--SO.sub.2--R.sub.8; (xix) --SO.sub.2--NR.sub.8R.sub.9; or (xx)
NR.sub.8--CO--NHR.sub.9; Ring B represents a fused 5- or 6-membered
heterocyclic ring containing 1-2 O,N, and/or S atoms and 1-5 C
atoms. R.sub.1, and R.sub.6-R.sub.11 are each independently H and
C.sub.1-6 alkyl, R.sub.2-R.sub.5 are each independently (i)
C.sub.1-10 alkyl or C.sub.2-10-alkenyl each optionally substituted
by amino, N-lower alkylamino, N,N-dilower alkylamino, N-lower
alkanoylamino, hydroxy, cyano, --COOR.sub.10, --COR.sub.14,
--OCOR.sub.14, --OR.sub.10, C.sub.5-10-heteroaryl,
C.sub.5-10-heteroaryloxy, C.sub.5-10-heteroaryl-C.sub.1-10-alkoxy,
or halogen up to perhalo; (ii) C.sub.3-C.sub.10 cycloalkyl, in
which 1-3 carbon atoms are optionally independently replaced by O,
N or S; (iii) C.sub.3-10-cycloalkenyl; (iv) partially unsaturated
C.sub.5-10-heterocyclyl; (v) aryl; (vi) heteroaryl; (vii) halogen;
(viii) --CO--OR.sub.10; (ix) --OCOR.sub.10; (x)
--OCO.sub.2R.sub.10; (xi) --CHO; (xii) cyano; (xiii) --OR.sub.16;
(xiv) --NR.sub.10R.sub.15; (xv) nitro; (xvi)
--CO--NR.sub.10R.sub.11; (xvii) --NR.sub.10--CO--R.sub.12; (xviii)
--NR.sub.10--CO--OR.sub.11; (xix) --NR.sub.10--SO.sub.2--R.sub.12;
(xx) --SR.sub.16; (xxi) --SOR.sub.16; (xxii) --SO.sub.2--R.sub.16;
(xxiii) --SO.sub.2--NR.sub.10R.sub.11; (xxiv)
NR.sub.10--CO--NHR.sub.11; (xxv) amidino; (xxvi) guanidino; (xxvii)
sulfo; (xxviii) --B(OH).sub.2; (xxix) --OCON(R.sub.10).sub.2; or
(xxx) --NR.sub.10CON(R.sub.10).sub.2; R.sub.12 is H,
C.sub.1-6-alkyl or C.sub.5-10-aryl, R.sub.13 is H, C.sub.1-6-alkyl
or C.sub.1-6-alkoxy, R.sub.14 is lower alkyl or phenyl; R.sub.15 is
lower alkyl, halogen, amino, N-lower alkyl amino, N,N-dilower
alkylamino, N-lower alkanoylamino, OH, CN, COOR.sub.10,
--COR.sub.14 or --OCOR.sub.14; R.sub.16 is hydrogen,
C.sub.1-6-alkyl optionally substituted by halogen, up to perhalo,
or C.sub.5-10-heteroaryl; and with the provisos that A is not
hydrogen when x is 0; --X-A is not CH.sub.3 when B represents a
thieno[3,2b]fused ring, and b and c are --CR.sub.5.dbd., and a is
NH; and A is not phenyl when X is NH, B forms an imidazo fused
ring, and -a-b-c- is --CR.sub.5.dbd.N--NR.sub.6-- or
--NR.sub.6.dbd.N--CR.sub.5--. In formula I, suitable aryl or
heteroaryl groups, e.g., for A, include, but are not limited to,
5-12 carbon-atom aromatic rings or ring systems containing 1-3
rings, at least one of which is aromatic, in which one or more,
e.g., 1-4 carbon atoms in one or more of the rings can be replaced
by oxygen, nitrogen or sulfur atoms. Each ring typically has 3-7
atoms. For example, aryl or heteroaryl can be 2- or 3-furyl, 2- or
3-thienyl, 2- or 4-triazinyl, 1-, 2- or 3-pyrrolyl, 1-, 2-, 4- or
5-imidazolyl, 1-, 3-, 4- or 5-pyrazolyl, 2-, 4- or 5-oxazolyl, 3-,
4- or 5-isoxazolyl, 2-, 4- or 5-thiazolyl, 3-, 4- or
5-isothiazolyl, 2-, 3- or 4-pyridyl, 2-, 4-, 5- or 6-pyrimidinyl;
1,2,3-triazol-1-, -4- or 5-yl, 1,2,4-triazol-1-, -3- or B5-yl, 1-
or 5-tetrazolyl, 1,2,3-oxadiazol-4- or 5-yl, 1,2,4-oxadiazol-3- or
5-yl, 1,3,4-thiadiazol-2- or 5-yl, 1,2,4-oxadiazol-3- or 5-yl,
1,3,4-thiadiazol-2- or 5-yl, 1,3,4-thiadiazol-3- or 5-yl,
1,2,3-thiadiazol-4- or 5-yl, 2-, 3-, 4-, 5- or 6-2H-thiopyranyl,
2-, 3- or 4-4H-thiopyranyl, 3- or 4-pyridazinyl, pyrazinyl, 2-, 3-,
4-, 5-, 6- or 7-benzofuryl, 2-, 3-, 4-, 5-, 6- or 7-benzothienyl,
1-, 2-, 3-, 4-, 5-, 6- or 7-indolyl, 1-, 2-, 4- or
5-benzimidazolyl, 1-, 3-, 4-, 5-, 6- or 7-benzopyrazolyl, 2-, 4-,
5-, 6- or 7-benzoxazolyl, 3-, 4-, 5-, 6- or 7-benzisoxazolyl, 1-,
3-, 4-, 5-, 6- or 7-benzothiazolyl, 2-, 4-, 5-, 6- or
7-benzisothiazolyl, 2-, 4-, 5-, 6- or 7-benz-1,3-oxadiazolyl, 2-,
3-, 4-, 5-, 6-, 7- or 8-quinolinyl, 1-, 3-, 4-, 5-, 6-, 7-,
8-isoquinolinyl, 1-, 2-, 3-, 4- or 9-carbazolyl, 1-, 2-, 3-, 4-,
5-, 6-, 7-, 8- or 9-acridinyl, or 2-, 4-, 5-, 6-, 7- or
8-quinazolinyl, or additionally optionally substituted phenyl, 2-
or 3-thienyl, 1,3,4-thiadiazolyl, 3-pyrryl, 3-pyrazolyl,
2-thiazolyl or 5-thiazolyl, etc. Preferred moieties A include
cyclohexyl; or C.sub.5-12-aryl or C.sub.5-12-heteroaryl each
independently optionally substituted up to three times by (i)
C.sub.1-C.sub.10-alkyl or C.sub.2-10-alkenyl each optionally
substituted with halogen up to perhalo; (ii) C.sub.3-C.sub.10
cycloalkyl; (iii) C.sub.5-12-aryl optionally substituted by 1-3
halogen atoms; (iv) C.sub.5-12-heteroaryl; (v) halogen; (vi)
--CO--OR.sub.8; (vii) --CO--R.sub.8; (viii) cyano; (ix) --OR.sub.8;
(x) --NR.sub.8R.sub.13; (xi) nitro; (xii) --CO--NR.sub.8R.sub.9;
(xiii) --C.sub.1-10-alkyl-NR.sub.8R.sub.9; (xiv)
--NR.sub.8--CO--R.sub.12; (xv) --NR.sub.8--CO--OR.sub.9; (xvi)
--NR.sub.8--SO.sub.2--R.sub.9; (xvii) --SR.sub.8; (xviii)
--SO.sub.2--R.sub.8; (xix) --SO.sub.2--NR.sub.8R.sub.9, or (xx)
NR.sub.8--CO--NHR.sub.9. Further preferred moieties A include
phenyl, pyridyl, pyrimidinyl, oxazolyl, furyl, thienyl, pyrrolyl,
imidazolyl, isoxazolyl and pyrazinyl, each independently
substituted up to three times by halogen, C.sub.1-10-alkyl,
C.sub.1-10-alkoxyphenyl, naphthyl, --OR.sub.10,
##STR00002##
as well as
##STR00003##
wherein each Z independently is halogen, hydroxy,
hydroxy-C.sub.1-10-alkyl, --CN, --NO.sub.2,
C.sub.1-10-alkoxycarboxyl, --NR.sub.10--CO--R.sub.11, or
--NR.sub.10--CO--OR.sub.11, as well as OR.sub.10, y is 0-3, more
preferably 1-3, and R.sub.4 is as described above. Preferred
moieties A additionally include
##STR00004##
as well as
##STR00005##
wherein R.sub.15 is H; phenyl optionally substituted by
C.sub.1-10-alkyl, C.sub.1-10-alkoxy, C.sub.1-10-alkylcarboxyl, or
halogen; benzyl; pyrimidyl or pyridyl; and R.sub.16 is H, phenyl,
--COOR.sub.10,
##STR00006##
[0011] The present invention is also directed to pharmaceutically
acceptable salts of formula I. Suitable pharmaceutically acceptable
salts are well known to those skilled in the art and include basic
salts of inorganic and organic acids, such as hydrochloric acid,
hydrobromic acid, sulphuric acid, phosphoric acid, methanesulphonic
acid, sulphonic acid, acetic acid, trifluoroacetic acid, malic
acid, tartaric acid, citric acid, lactic acid, oxalic acid,
succinic acid, fumaric acid, maleic acid, benzoic acid, salicyclic
acid, phenylacetic acid, and mandelic acid. In addition,
pharmaceutically acceptable salts include acid salts of inorganic
bases, such as salts containing alkaline cations (e.g., Li.sup.+,
Na.sup.+ or K.sup.+), alkaline earth cations (e.g., Mg.sup.+,
Ca.sup.+ or Ba.sup.+), the ammonium cation, as well as acid salts
of organic bases, including aliphatic and aromatic substituted
ammonium, and quaternary ammonium cations, such as those arising
from protonation or peralkylation of triethylamine,
N,N-diethylamine, N,N-dicyclohexylamine, pyridine,
N,N-dimethylaminopyridine (DMAP), 1,4-diazabiclo[2.2.2]octane
(DABCO), 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) and
1,8-diazabicyclo[5.4.0]undec-7-ene (DBU).
[0012] A number of the compounds of Formula I possess asymmetric
carbons and can therefore exist in racemic and optically active
forms. Methods of separation of enantiomeric and diastereomeric
mixtures are well known to one skilled in the art. The present
invention encompasses any isolated racemic or optically active form
of compounds described in Formula I which possess Rho-kinase
inhibitory activity.
[0013] The invention also includes pharmaceutical compositions
including a compound of Formula I, and a physiologically acceptable
carrier.
[0014] The invention moreover encompasses treating indications
mediated by Rho-kinase, by administering a compound of Formula I,
or a pharmaceutical composition containing a compound of Formula I.
Thus, the invention encompasses treating cardiovascular diseases
such as hypertension, artherosclerosis, restenosis and cerebral
ischemia, or vasospasm central nervous system disorders such as
neuronal degeneration and spinal cord injury, erectile dysfunction,
e.g., in patients who do not have satisfactory response to PDE-5
inhibitors, and cancer (e.g., tumor growth) mediated by Rho-kinase,
by administering, e.g., to a host in need thereof, of an effective
amount of a compound of Formula I. Cancers and tumors mediated by
Rho-kinase include cancers of the breast, colon, prostate, ovaries,
brain and lung and their metastases.
[0015] A number of the compounds of Formula I possess asymmetric
carbons and can therefore exist in racemic and optically active
forms. Methods of separation of enantiomeric and diastereomeric
mixtures are well known to one skilled in the art. The present
invention encompasses any isolated racemic or optically active form
of compounds described in Formula I which possess Rho-kinase
inhibitory activity.
[0016] The invention also includes pharmaceutical compositions
including a compound of Formula I, and a physiologically acceptable
carrier.
[0017] The invention moreover encompasses treating indications
mediated by Rho-kinase, by administering a compound of Formula I,
or a pharmaceutical composition containing a compound of Formula I.
Thus, the invention encompasses treating cardiovascular diseases
such as hypertension, artherosclerosis, restenosis and cerebral
ischemia, or vasospasm central nervous system disorders such as
neuronal degeneration and spinal cord injury, erectile dysfunction,
e.g., in patients who do not have satisfactory response to PDE-5
inhibitors, and cancer (e.g., tumor growth) mediated by Rho-kinase,
by administering, e.g., to a host in need thereof, of an effective
amount of a compound of Formula I. Cancers and tumors mediated by
Rho-kinase include cancers of the breast, colon, prostate, ovaries,
brain and lung and their metastases.
[0018] The compounds may be administered orally, topically,
parenterally, by inhalation or spray, vaginally, rectally or
sublingually in dosage unit formulations. The term `administration
by injection` includes intravenous, intraarticular, intramuscular,
subcutaneous and parenteral injections, as well as use of infusion
techniques. Dermal administration may include topical application
or transdermal administration. One or more compounds may be present
in association with one or more non-toxic pharmaceutically
acceptable carriers and if desired other active ingredients.
[0019] Compositions intended for oral use may be prepared according
to any suitable method known to the art for the manufacture of
pharmaceutical compositions. Such compositions may contain one or
more agents selected from the group consisting of diluents,
sweetening agents, flavoring agents, coloring agents and preserving
agents in order to provide palatable preparations. Tablets contain
the active ingredient in admixture with non-toxic pharmaceutically
acceptable excipients which are suitable for the manufacture of
tablets. These excipients may be, for example, inert diluents, such
as calcium carbonate, sodium carbonate, lactose, calcium phosphate
or sodium phosphate; granulating and disintegrating agents, for
example, corn starch, or alginic acid; and binding agents, for
example magnesium stearate, stearic acid or talc. The tablets may
be uncoated or they may be coated by known techniques to delay
disintegration and adsorption in the gastrointestinal tract and
thereby provide a sustained action over a longer period. For
example, a time delay material such as glyceryl monostearate or
glyceryl distearate may be employed. These compounds may also be
prepared in solid, rapidly released form.
[0020] Formulations for oral use may also be presented as hard
gelatin capsules wherein the active ingredient is mixed with an
inert solid diluent, for example, calcium carbonate, calcium
phosphate or kaolin, or as soft gelatin capsules wherein the active
ingredient is mixed with water or an oil medium, for example peanut
oil, liquid paraffin or olive oil.
[0021] Aqueous suspensions containing the active materials in
admixture with excipients suitable for the manufacture of aqueous
suspensions may also be used. Such excipients are suspending
agents, for example sodium carboxymethylcellulose, methylcellulose,
hydroxypropyl-methyl cellulose, sodium alginate,
polyvinylpyrrolidone, gum tragacanth and gum acacia; dispersing or
wetting agents may be a naturally-occurring phosphatide, for
example, lecithin, or condensation products of an alkylene oxide
with fatty acids, for example polyoxyethylene stearate, or
condensation products of ethylene oxide with long chain aliphatic
alcohols, for example heptadecaethylene oxycetanol, or condensation
products of ethylene oxide with partial esters derived from fatty
acids and hexitol such as polyoxyethylene sorbitol monooleate, or
condensation products of ethylene oxide with partial esters derived
from fatty acids and hexitol anhydrides, for example polyethylene
sorbitan monooleate. The aqueous suspensions may also contain one
or more preservatives, for example ethyl, or n-propyl
p-hydroxybenzoate, one or more coloring agents, one or more
flavoring agents, and one or more sweetening agents, such as
sucrose or saccharin.
[0022] Dispersible powders and granules suitable for preparation of
an aqueous suspension by the addition of water provide the active
ingredient in admixture with a dispersing or wetting agent,
suspending agent and one or more preservatives. Suitable dispersing
or wetting agents and suspending agents are exemplified by those
already mentioned above. Additional excipients, for example,
sweetening, flavoring and coloring agents, may also be present.
[0023] The compounds may also be in the form of non-aqueous liquid
formulations, e.g., oily suspensions which may be formulated by
suspending the active ingredients in a vegetable oil, for example
arachis oil, olive oil, sesame oil or peanut oil, or in a mineral
oil such as liquid paraffin. The oily suspensions may contain a
thickening agent, for example beeswax, hard paraffin or cetyl
alcohol. Sweetening agents such as those set forth above, and
flavoring agents may be added to provide palatable oral
preparations. These compositions may be preserved by the addition
of an anti-oxidant such as ascorbic acid.
[0024] Compounds of the invention may also be administrated
transdermally using methods known to those skilled in the art (see,
for example: Chien; "Transdermal Controlled Systemic Medications";
Marcel Dekker, Inc.; 1987. Lipp et al. WO94/04157 3 Mar., 1994).
For example, a solution or suspension of a compound of Formula I in
a suitable volatile solvent optionally containing penetration
enhancing agents can be combined with additional additives known to
those skilled in the art, such as matrix materials and
bacteriocides. After sterilization, the resulting mixture can be
formulated following known procedures into dosage forms. In
addition, on treatment with emulsifying agents and water, a
solution or suspension of a compound of Formula I may be formulated
into a lotion or salve.
[0025] Suitable solvents for processing transdermal delivery
systems are known to those skilled in the art, and include lower
alcohols such as ethanol or isopropyl alcohol, lower ketones such
as acetone, lower carboxylic acid esters such as ethyl acetate,
polar ethers such as tetrahydrofuran, lower hydrocarbons such as
hexane, cyclohexane or benzene, or halogenated hydrocarbons such as
dichloromethane, chloroform, trichlorotrifluoroethane, or
trichlorofluoroethane. Suitable solvents may also include mixtures
of one or more materials selected from lower alcohols, lower
ketones, lower carboxylic acid esters, polar ethers, lower
hydrocarbons, halogenated hydrocarbons.
[0026] Suitable penetration enhancing materials for transdermal
delivery system are known to those skilled in the art, and include,
for example, monohydroxy or polyhydroxy alcohols such as ethanol,
propylene glycol or benzyl alcohol, saturated or unsaturated
C.sub.8-C.sub.18 fatty alcohols such as lauryl alcohol or cetyl
alcohol, saturated or unsaturated C.sub.8-C.sub.18 fatty acids such
as stearic acid, saturated or unsaturated fatty esters with up to
24 carbons such as methyl, ethyl, propyl, isopropyl, n-butyl,
sec-butyl, isobutyl, tertbutyl or monoglycerin esters of acetic
acid, capronic acid, lauric acid, myristinic acid, stearic acid, or
palmitic acid, or diesters of saturated or unsaturated dicarboxylic
acids with a total of up to 24 carbons such as diisopropyl adipate,
diisobutyl adipate, diisopropyl sebacate, diisopropyl maleate, or
diisopropyl fumarate. Additional penetration enhancing materials
include phosphatidyl derivatives such as lecithin or cephalin,
terpenes, amides, ketones, ureas and their derivatives, and ethers
such as dimethyl isosorbid and diethyleneglycol monoethyl ether.
Suitable penetration enhancing formulations may also include
mixtures of one or more materials selected from monohydroxy or
polyhydroxy alcohols, saturated or unsaturated C.sub.8-C.sub.18
fatty alcohols, saturated or unsaturated C.sub.8-C.sub.18 fatty
acids, saturated or unsaturated fatty esters with up to 24 carbons,
diesters of saturated or unsaturated discarboxylic acids with a
total of up to 24 carbons, phosphatidyl derivatives, terpenes,
amides, ketones, ureas and their derivatives, and ethers.
[0027] Suitable binding materials for transdermal delivery systems
are known to those skilled in the art and include polyacrylates,
silicones, polyurethanes, block polymers, styrenebutadiene
copolymers, and natural and synthetic rubbers. Cellulose ethers,
derivatized polyethylenes, and silicates may also be used as matrix
components. Additional additives, such as viscous resins or oils
may be added to increase the viscosity of the matrix.
[0028] Pharmaceutical compositions of the invention may also be in
the form of oil-in-water emulsions. The oil phase may be a
vegetable oil, for example olive oil or arachis oil, or a mineral
oil, for example, liquid paraffin or mixtures of these. Suitable
emulsifying agents may be naturally-occurring gums, for example,
gum acacia or gum tragacanth, naturally-occurring phosphatides, for
example, soy bean, lecithin, and esters or partial esters derived
from fatty acids and hexitol anhydrides, for example, sorbitan
monooleate, and condensation products of the said partial esters
with ethylene oxide, for example, polyoxyethylene sorbitan
monooleate. The emulsions may also contain sweetening and flavoring
agents.
[0029] Syrups and elixirs may be formulated with sweetening agents,
for example glycerol, propylene glycol, sorbitol or sucrose. Such
formulations may also contain a demulcent, a preservative and
flavoring and coloring agents.
[0030] The compounds may also be administered in the form of
suppositories for rectal or vaginal administration of the drug.
These compositions can be prepared by mixing the drug with a
suitable non-irritating excipient which is solid at ordinary
temperatures but liquid at the rectal temperature or vaginal
temperature and will therefore melt in the rectum or vagina to
release the drug. Such materials include cocoa butter and
polyethylene glycols.
[0031] Moreover, for treatment of erectile dysfunction, the present
pharmaceutical compositions may take any form which is suitable for
administration to the penis either via injection into the corpora
cavernosa or transurethral administration, or topically applied to
the urethral meatus. In the case of injection into the corpora
cavernosa, the pharmaceutical composition is suitably in the form
of a saline solution. Preferably, the pharmaceutical composition is
in a form suitable for transurethral administration, and in this
case the composition is typically in the form of a solution, an
ointment, or a suppository. Typically, the pharmaceutical
composition is administered 1 to 50 minutes, preferably 10 to 20
minutes, prior to the time of commencing sexual intercourse.
[0032] For all regimens of use disclosed herein for compounds of
Formula I, the daily oral dosage regimen will preferably be from
0.01 to 200 mg/Kg of total body weight. The daily dosage for
administration by injection, including intravenous, intramuscular,
subcutaneous and parenteral injections, and use of infusion
techniques will preferably be from 0.01 to 200 mg/Kg of total body
weight. The daily vaginal dosage regime will preferably be from
0.01 to 200 mg/Kg of total body weight. The daily topical dosage
regimen will preferably be from 0.01 to 200 mg administered between
one to four times daily. The transdermal concentration will
preferably be that required to maintain a daily dose is of from 0.1
to 200 mg/Kg. The daily inhalation dosage regimen will preferably
be from 0.01 to 10 mg/Kg of total body weight.
[0033] It will be appreciated by those skilled in the art that the
particular method of administration will depend on a variety of
factors, all of which are considered routinely when administering
therapeutics. It will also be understood, however, that the
specific dose level for any given patient will depend upon a
variety of factors, including, the activity of the specific
compound employed, the age of the patient, the body weight of the
patient, the general health of the patient, the gender of the
patient, the diet of the patient, time of administration, route of
administration, rate of excretion, drug combinations, and the
severity of the condition undergoing therapy. It will be further
appreciated by one skilled in the art that the optimal course of
treatment, i.e., the mode of treatment and the daily number of
doses of a compound of Formula I or a pharmaceutically acceptable
salt thereof given for a defined number of days, can be ascertained
by those skilled in the art using conventional treatment tests.
[0034] The present compounds and compositions exhibit Rho-kinase
inhibitory activity, and are thus useful to treat the indications
listed above, e.g., indications mediated by Rho-kinase. By
indications mediated by Rho-kinase is meant diseases or conditions
whose progression proceeds, at least in part, via the Rho
pathway.
[0035] Rho-kinase inhibitory activity, e.g., ROCK-1 inhibition, can
be evaluated as follows:
[0036] The kinase domain of human ROCK-1, amino acids 27-530, is
isolated as a glutathione S-transferase fusion protein from Sf9
insect cells. The protein is partially purified by glutathione
Sepharose 4B (Pharmacia Biotech, Piscataway, N.J.) affinity
purification. Reactions is carried out in 96-well plates in a total
volume of 100 uL containing 50 mM
N-[2-Hydroryethyl]piperaxine-N'[2-ethanesulfonic acid] pH 7.5, 5 mM
MgCl.sub.2, 1 mM dithiothreitol, 6 .mu.M ATP, 0.2 .mu.Ci
[.sup.33P]ATP (NEN, Boston, Mass.), 1 .mu.g myelin basic protein
and 0.1 .mu.g ROCK-1. Test compounds are dissolved in 100%
dimethylsulfoxide, diluted to the appropriated concentration and
added to the reaction. The final concentration of dimethylsulfoxide
did not exceed 0.5%. The reaction is run for one hour at room
temperature. The reaction is stopped with the addition of 7 mL of 1
N HCL, transferred to P30 membranes and the amount of
[.sup.33P]ATP, as counts per minute (c.p.m.) incorporated into the
substrate, myelin basic protein, is read in a BetaPlate Reader
(Packard. Instrument Co., Meriden, Conn.). (All reagents were
purchased from Sigma Chemical Co., St. Louis, Mo. unless stated
otherwise.) Percentage inhibition is measured by the amount of
incorporation of radioactivity in the presence of the test compound
when compared to the amount of incorporation in the absence of the
test compound.
[0037] Inhibitory activity can also be evaluated by measurement of
stress fiber formation, performed essentially as described by
Ridley, A. J., and A. Hall, Cell 70:389-399 (1992). Human
fibrosarcoma HT1080 (CCL-121, American Type Culture Collection,
Manassas, Va.) cells are plated on 22.times.22 mm #1 glass cover
slips in six-well tissue culture plates (Costar) at
2.5.times.10.sup.4 cells/well in Delbeco's modified Eagle's Medium
(DMEM, Gibco) supplemented with 10% fetal calf serum. Cells are
maintained in a humidified, 5% CO.sub.2 atmosphere at 37'C. After
24 hours the culture medium is removed and replaced with medium
without 10% fetal calf serum and the cells cultured for an
additional 48 hours. Test compounds are dissolved in 100%
dimethylsulfoxide, diluted to the appropriated concentration and
added to the culture medium 60 minutes prior to the induction of
stress fiber formation. The final concentration of
dimethylsulfoxide did not exceed 0.25%. Stress fiber formation is
induced by the addition of lysophosphatidic acid
(1-oleoyl-2-hydroxy-sn-glycerol-3-phosphate, Avanti Polar-Lipids,
Alabaster, Al) to 10 .mu.M final concentration in Delbeco's
modified Eagle's Medium containing 0.1% fatty acid free bovine
serum albumin for 15 minutes at 37.degree. C. Cells are fixed with
4% paraformaldeyhde (Poly Scientific, Bay Shore, N.J.) in phosphate
buffered saline (PBS) for 15 minutes. Cells are then washed 3 times
in PBS and them permeabilized using a solution containing 40 mM
piperazine-N-N' bis[2-ethanesulfonic acid], 50 mM
N-[2-hydroryethyl]piperaxine-N'[2-ethanesulfonic acid], 0.1% Triton
X-100, 75 mM NaCl, mM MgCl.sub.2, 0.5 mM EGTA, pH 7.2 for 2 minutes
at room temperature. The cells are washed 3 times for 5 minutes
each in PBS and then actin stress fibers are stained using 10
units/mL rhodamine phalloidin (Molecular Probes, Eugene, Oreg.) in
PBS for 60 minutes at room temperature. The cells are washed 3
times with PBS and the cover slips mounted on glass microscope
slides. The percentage of stress fiber positive cells on each slide
was determined visually using a Nikon Labphoto-2 microscope. At
least 100 cells were counted per slide and experiments were done in
duplicate. Percentage inhibition is measured by counting the number
of stress fiber positive cells in the presence of the test compound
when compared to the number of stress fiber positive cells in the
absence of the test compound.
[0038] Using the above protocols, all of the compounds as disclosed
herein are determined to have Rho-kinase inhibitory activity.
[0039] The compounds of the invention can be made according to
routine, conventional chemical methods, and/or as disclosed below,
from starting materials which are either commercially available or
produceable according to routine, conventional chemical methods.
General methods for the preparation of the compounds are given
below, and the preparation of representative compounds is
specifically illustrated in the Examples.
ABBREVIATIONS AND ACRONYMS
[0040] When the following abbreviations are used herein, they have
the following meaning: [0041] Ac.sub.2O acetic anhydride [0042]
anhy anhydrous [0043] n-BuOH n-butanol [0044] t-BuOH t-butanol
[0045] CD.sub.3OD methanol-d.sub.4 [0046] Celite.RTM. diatomaceous
earth filter agent, .RTM.Celite Corp. [0047] CH.sub.2Cl.sub.2
methylene chloride [0048] CI-MS chemical ionization mass
spectroscopy [0049] conc concentrated [0050] dec decomposition
[0051] DME dimethoxyethane [0052] DMF N,N-dimethylformamide [0053]
DMSO dimethylsulfoxide [0054] ELSD evaporative light scattering
detector [0055] EtOAc ethyl acetate [0056] EtOH ethanol (100%)
[0057] Et.sub.2O diethyl ether [0058] Et.sub.3N triethylamine
[0059] HPLC ES-MS high performance liquid
chromatography-electrospray mass spectroscopy [0060] NMM
4-methylmorpholine [0061] Ph.sub.3P triphenylphosphine [0062]
Pd(dppf)Cl.sub.2
[1,1'-bis(diphenylphosphino)ferrocene]dichloropalladium(II) [0063]
Pd(PPh.sub.3).sub.4 tetrakis(triphenylphosphine)palladium(0) [0064]
Pd(OAc).sub.2 palladium acetate [0065] P(O)Cl.sub.3 phosphorous
oxychloride [0066] RT retention time (HPLC0 [0067] rt room
temperature [0068] THF tetrahydrofuran [0069] TFA trifluoroacetic
acid [0070] TLC thin layer chromatography
[0071] General Methods of Preparation
##STR00007##
[0072] A mixture of compounds 1 and 2, and potassium acetate in
THF/water is stirred at room temperature overnight. Water is added
to the mixture resulting in the formation of a precipitate. The
precipitate is washed with water, filtered, and dried under high
vacuum to afford 3.
##STR00008##
[0073] A mixture of compound 3, ethylene glycol dimethyl
ether/water, aryl boronic acid and sodium bicarbonate is degassed
with argon for 15 minutes and Pd(dppf).sub.2Cl.sub.2 is added. The
mixture is heated to reflux overnight. After cooling to room
temperature, CH.sub.2Cl.sub.2 and H.sub.2O are added to the
mixture. The organic and aqueous layers are separated and the
aqueous layer is extracted with CH.sub.2Cl.sub.2, and the combined
organic layers are dried over anhydrous sodium sulfate. The organic
solvent is removed under reduced pressure and the crude product is
purified by silica gel chromatography of HPLC to afford compound
4.
##STR00009##
[0074] A mixture of compound 3 and a phenol, N-substituted amine,
or N-substituted aniline (A-X--H. where X is O or NR.sup.8) is
heated to 140.degree. C. for 2 hours. The mixture is cooled to room
temperature and is treated with ether to form precipitate or
purified by silica gel column chromatography. The precipitate is
filtered, washed with ether several times, and is dried under high
vacuum to provide product.
##STR00010##
[0075] A heterocyclic aminoester of Formula 6 is acylated with an
aromatic acid chloride or anhydride, in a base such as pyridine.
The amide ester product is converted to the amide acid of Formula 7
by hydrolysis, or if R'' is methyl, by action of boron tribromide.
Conversion of the acid to the amide of Formula 8 is accomplished by
reaction of 7 with ammonia in the presence of catalysts such as
DMAP and EDC. Cyclization to 9 may be carried out by heating the
diamide 8 in the presence of a base such as sodium hydroxide. The
chloro intermediate of Formula 10 is formed by treatment of 9 with
a chlorinating agent such as phosphorous oxychloride.
##STR00011##
[0076] A cyanoheterocyclic amine of Formula 10 may be directly
converted to compounds of Formula 4 by heating with a Vilsmeier
reagent, prepared in situ by treatment of an aromatic N,N-dimethyl
amide with a phosphorous oxychloride or oxalyl chloride and the
like.
[0077] Without further-elaboration, it is believed that one skilled
in the art can, using the preceding description, utilize the
present invention to its fullest extent. The following preferred
specific embodiments are, therefore, to be construed as merely
illustrative, and not limitative of the remainder of the disclosure
in any way whatsoever.
[0078] In the foregoing and in the following examples, all
temperatures are set forth uncorrected in degrees Celsius; and,
unless otherwise indicated, all parts and percentages are by
weight.
[0079] The entire disclosure of all applications, patents and
publications, cited above or below, and of corresponding U.S.
Provisional Application Ser. No. 60/277,974, filed Mar. 23, 2001,
U.S. Provisional Application 60/315,341 filed Aug. 29, 2001, U.S.
Provisional Application Ser. No. 60/315,338 filed Aug. 29, 2001,
and U.S. Provisional Application No. 60/346,628, filed Jan. 10,
2002 are hereby incorporated by reference.
EXAMPLES
Preparation of
2-(5-chloro-2-thienyl)-N-(1H-indazol-5-yl)thieno[3,2-d]pyrimidin-4-amine
##STR00012##
[0080] Step 1: Preparation of
2,3-dichlorothieno[3,2-d]pyrimidine
##STR00013##
[0082] A solution of thienoyleneurea (6.0 g) and
N,N-dimethylaniline (2.9 mL) in phosphorus oxychloride (35 mL) was
heated at 125.degree. C. (oil bath) for 22 h under argon. The
solution cooled to 50.degree. C. and was poured into cold water
(0.degree. C., 8.0 mL) while vigorously stirring. The precipitate
was filtered, washed with water, and dissolved in EtOAc. The
organic solution was filtered, washed with water, and the organic
phase was dried over MgSO.sub.4, filtered and concentrated to
afford a yellow precipitate (4.5 g, 61% yield).
Step 2: Preparation of
4-(N-5-aminoindazole)-2-chloro-thieno[3,2-d]pyrimidine
##STR00014##
[0084] A mixture of the compound for step 1 (4.0 g, 19.5 mmol),
5-aminoindazole (3.2 g, 23.4 mmol), and potassium acetate (2.5 g,
25.4 mmol) in THF/water (100 mL/50 mL) was stirred rt overnight.
The THF was removed under reduced pressure and the residue was
partitioned between EtOAc and water. The organic phase was washed
with aqueous NH.sub.4Cl, dried over MgSO.sub.4, filtered. The
filtrate was poured onto a silica gel column and eluted with EtOAc.
The solvent was concentrated by rotary evaporation and a gray
precipitate was obtained (3.9 g, 65% yield). Rf=0.28
(EtOAc/hexanes, 1/1).
[0085] Step 3: Preparation of
2-(5-chloro-2-thienyl)-N-(1H-indazol-5-yl)thieno[3,2-d]-pyrimidin-4-amine
##STR00015##
[0086] A mixture of the compound from step 2 (6.9 g, 23 mmol),
5-chlorothienyl boronie acid (3.7 g, 23 mmol) and sodium
bicarbonate (5.8 g, 69 mmol) in DME/H.sub.2O (3/1, 300 mL) was
flushed with Ar for 1 h. Pd(dppf)Cl.sub.2 (1.8 g, 2.3 mmol) was
added and the mixture was heated to reflux for 48 h. The solvent
was removed by rotary evaporation and the crude product was
purified by silica gel chromatography to afford of yellow solid
(3.5 g, 40% yield). Rf=0.20 (EtOAc/hexane, 1/1). .sup.1H NMR
(methanol-d.sub.4) .delta. 8.05 (s, 1H), 8.00 (s, 1H), 7.89 (d, 1H,
J=3 Hz), 7.68-7.59 (m, 2H), 7.50 (d, 1H, J=3 Hz), 7.29 (1H, d, J=3
Hz), 6.95 (d, 1H, J=3 Hz).
Examples 2-55
[0087] Using an procedure analogous to that described for example 1
and reacting 4-(N-5-aminoindazole)-2-chlorothieno[3,2-d]pyrimidine
and the appropriate boronic acid or ester, the compounds described
in Table 1 below were prepared.
TABLE-US-00001 TABLE 1 ##STR00016## Ex. No. Ar.sub.1 Note 2
##STR00017## 1 3 ##STR00018## 2 4 ##STR00019## 3 5 ##STR00020## 4 6
##STR00021## 5 7 ##STR00022## 6 8 ##STR00023## 7 9 ##STR00024## 8
10 ##STR00025## 9 11 ##STR00026## 10 12 ##STR00027## 11 13
##STR00028## 12 14 ##STR00029## 13 15 ##STR00030## 14 16
##STR00031## 15 17 ##STR00032## 16 18 ##STR00033## 17 19
##STR00034## 18 20 ##STR00035## 19 21 ##STR00036## 20 22
##STR00037## 21 23 ##STR00038## 22 24 ##STR00039## 23 25
##STR00040## 24 26 ##STR00041## 25 27 ##STR00042## 26 28
##STR00043## 27 29 ##STR00044## 28 30 ##STR00045## 29 31
##STR00046## 30 32 ##STR00047## 31 33 ##STR00048## 32 34
##STR00049## 33 35 ##STR00050## 34 36 ##STR00051## 35 37
##STR00052## 36 38 ##STR00053## 37 39 ##STR00054## 38 40
##STR00055## 39 41 ##STR00056## 40 42 ##STR00057## 41 43
##STR00058## 42 44 ##STR00059## 43 45 ##STR00060## 44 46
##STR00061## 45 47 ##STR00062## 46 48 ##STR00063## 47 49
##STR00064## 48 50 ##STR00065## 49 51 ##STR00066## 50 52
##STR00067## 51 53 ##STR00068## 52 54 ##STR00069## 53 55
##STR00070## 54 56 ##STR00071## 55 57 ##STR00072## 56 58
##STR00073## 57 1 HPLC/MS: (M + H).sup.+ m/z 378.4. Rf = 0.39 (50%
EtOAc/Hex). .sup.1H NMR (DMSO): .delta. 13.1 (s, 1H), 9.8 (s, 1H),
8.3-8.4 (m, 2H), 8.2 (d, J = 5.7 Hz, 1H), 8.1 (s, 2H), 7.5-7.7 (m,
5H) 2 HPLC/MS: (M + H).sup.+ m/z 421.4. Rf = 0.25 (50% EtOAc/Hex).
.sup.1H NMR (CD.sub.3OD): .delta. 8.7 (m, 1H), 8.4 (d, J = 8.4 Hz,
2H), 8.2-8.3 (m, 7H), 7,6-7.7 (m, 4H) 3 HPLC/MS: (M + H).sup.+ m/z
450.4. Rf = 0.50 (1/1, EtOAc/Hex). 4 HPLC/MS: (M + H).sup.+ m/z
438.4. Rf = 0.40 (1/1, EtOAc/Hex). 5 HPLC/MS; (M + H).sup.+ 420.4
m/z. Rf = 0.33 (1/1, EtOAc/Hex). .sup.1H NMR (DMSO): .delta. 13.0
(s, 1H), 9.6 (s, 1H), 8.7 (s, 1H), 8.4 (d, J = 8.7, 1H), 8.3 (s,
1H), 8.2 (d, J = 5.7, 1H), 8.0 (s, 1H), 7.8-7.4 (m, 10H) 6 HPLC/MS:
(M + H).sup.+ m/z 378.4. Rf = 0.62 (1/1, EtOAc/Hex). .sup.1NNMR
(DMSO and CH.sub.2Cl.sub.2): .delta. 12.9 (s, 1H), 9.7 (s, 1H),
8.3-8.4 (m, 3H), 8.0-8.1 (m, 4H), 7.3-7.7 (m, 3H) 7 HPLC/MS: (M +
H).sup.+ m/z 421.4. Rf = 0.24 (1/1, EtOAc/Hex). .sup.1H NMR
(CD.sub.3OD): .delta. 9.1 (s, 1H), 8.7 (m, 1H), 8.6 (dd, 1H),
8.4-8.5 (d, J = 8.1 Hz, 2H), 8.3 (d, J = 6.0 Hz, 1H), 8.2 (s, 1H),
8.1 (m, 1H), 8.0 (m, 2H), 7.9 (m, 1H), 7.6-7.7 (m, 2H), 7.6 (d, J =
5.1, 1H) 8 HPLC/MS: (M + H).sup.+ m/z 438.4. Rf = 0.41 (1/1,
EtOAc/Hex). .sup.1H NMR (CD.sub.3OD): .delta. 8.3-8.4 ( . . . J =
8.4 Hz, 2H), 8.3 (d, J = 5.4 Hz, 1H), 8.2 (s, 1H), 8.1 (s, 1H),
7.8-7.9 (d, J = 8.4 Hz, 2H), 7.6-7.8 (m, 4H), 7.5-7.6 (d, J = 5.4,
1H), 7.2-7.3 (m, 2H) 9 HPLC/MS: (M + H).sup.+ m/z 454.4. Rf = 0.33
(1/1, EtOAc/Hex). 10 HPLC/MS: (M + H).sup.+ m/z 454.5. Rf = 0.40
(1/1, EtOAc/Hex). 11 HPLC/MS: (M + H).sup.+ m/z 454.4. Rf = 0.42
(1/1, EtOAc/Hex). 12 HPLC/MS: (M + H).sup.+ m/z 488.4. Rf = 0.43
(1/1, EtOAc/Hex). 13 HPLC/MS: (M + H).sup.+ m/z 465.4. Rf = 0.36
(1/1, EtOAc/Hex). .sup.1H NMR (CD.sub.3OD): .delta. 8.6 (t, J = 1.8
Hz, 1H), 8.4 (d, J = 8.7, 2H), 8.3 (m, 2H), 8.1-8.2 (m, 3H), 8.0
(d, J = 10.5, 2H), 7.7-7.8 (m, 3H), 7.5-7.6 (d, J = 5.4 Hz, 1H) 14
HPLC/MS: (M + H).sup.+ m/z 468.4. Rf = 0.38 (1/1, EtOAc/Hex). 15
HPLC/MS: (M + H).sup.+ m/z 480.4. Rf = 0.37 (1/1, EtOAc/Hex). 16
HPLC/MS: (M + H).sup.+ m/z 480.4. Rf = 0.30 (1/1, EtOAc/Hex). 17
HPLC/MS: (M + H).sup.+ m/z 470.5. Rf = 0.36 (1/1, EtOAc/Hex).
.sup.1H NMR (CD.sub.3OD): .delta. 8.3-8.4 (m, 2H, 1H), 8.2 (s, 1H),
8.1 (s, 1H), 7.9-8.0 (m, 2H), 7.8-7.9 (m, 1H), 7.7-7.8 (m, 4H),
7.4-7.6 (m, 6H) 18 HPLC/MS: (M + H).sup.+ m/z 477.5. Rf = 0.13
(1/1, EtOAc/Hex). 19 HPLC/MS: (M + H).sup.+ m/z 462.5. Rf = 0.33
(1/1, EtOAc/Hex). 20 HPLC/MS: (M + H).sup.+ m/z 479.3. Rf = 0.39
(1/1, EtOAc/Hex). 21 HPLC/MS: (M + H).sup.+ m/z 434.4. Retention
time (HPLC): Rt = 4.73. .sup.1H NMR (CD.sub.3OD): .delta. 8.1-8.4
(m, 6H), 7.4-7.7 (m, 7H) 22 HPLC/MS: (M + H).sup.+ m/z 465.3.
Retention time (HPLC, CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.79 23
HPLC/MS: (M + H).sup.+ m/z 426.4. Retention time (HPLC): Rt = 2.55
24 HPLC/MS: (M + H).sup.+ m/z 480.4. Retention time (HPLC): Rt =
2.31 25 HPLC/MS: (M + H).sup.+ m/z 421.4. Rf = 0.13 (1/1,
EtOAc/Hex). .sup.1H NMR (CD.sub.3OD): .delta. 9.0 (s, 1H), 8.8 (s,
1H), 8.7 (t, J = 1.8 Hz, 1H), 8.5-8.6 (m, 1H), 8.4 (m, 1H), 8.3 (d,
J = 6.0 Hz, 1H), 8.1 (m, 1H), 8.0 (m, 1H), 7.6-7.9 (m, 4H), 7.5-7.6
(d, J = 5.7 Hz, 2H) 26 Rf = 0.33 (CH.sub.2Cl.sub.2/MeOH, 95/5).
.sup.1H NMR (CD.sub.3OD) .delta. 8.2 (1H, s), 8.2 (1H, s), 8.1 (1H,
s), 8.0 (1H, dd, J = 1.8, 6.0 Hz), 7.9-7.8 (1H, m), 7.8-7.7 (1H, d,
J = 9.3 Hz), 7.7-7.6 (2H, m), 7.6-7.5 (1H, m), 7.4 (1H, dd, J =
5,4, 2.1 Hz), 7.4-7.3 (1H, m). 27 Rf = 0.33 (CH.sub.2Cl.sub.2/MeOH,
95/5). .sup.1H NMR (CD.sub.3OD) .delta. 9.1 (1H, d, J = 2.4 Hz),
8.6 (1H, dd, J = 2.4, 8.7 Hz), 8.1-8.0 (2H, m), 8.0-7.9 (1H, d, J =
5.4 Hz), 7.7 (1H, dd, J = 2.2, 8.7 Hz), 7.6 (1H, d, J = 8.7 Hz),
7.42 (1H, d, J = 5.4 Hz), 6.8 (1H, d, J = 9.3 Hz). 28 Rf = 0.47
(Hexane/EtOAc = 1/1). .sup.1H NMR (CD.sub.3OD) .delta. 9.7 (1H, d,
j = 1.4 Hz), 9.2 (1H, d, J = 8.7 Hz), 8.24-8.20 (2H, m), 8.1 (1H,
d, J = 2.2 Hz), 7.8 (1H, d, J = 2.8 Hz), 7.71 (1Hf, d, J = 1.4 Hz),
7.66-7.56 (4H, m), 7.21-7.19 (2H, m), 709-7.07 (1H, m). 29 Rf =
0.28 (Hexane/EtOAc, 1/2). .sup.1H NMR (CD.sub.3OD) .delta. 8.60
(2H, d, J = 5.7 Hz), 8.53 (2H, dd, J = 1.5, 6.9 Hz), 8.15 (1H, d, J
= 1.0 Hz), 8.10 (1H, d, J = 2.2 Hz), 8.01 (1H, d, J = 5.4 Hz), 7.88
(2H, dd, J = 1.8, 6.6 Hz), 7.79 (2H, dd, J = 1.8, 4.5 Hz), 7.74
(1H, dd, J = 2.1, 9.0 Hz), 7.76 (1H, d, J = 8.7 Hz), 7.48 (1H, d, J
= 6.5 Hz). 30 Rf = 0.38 (Hexane/EtOAc, 1/1). .sup.1H NMR
(DMSO-d.sub.6) .delta. 13.08 (1H, s), 9.02 (1H, s), 8.40 (2H, dd, J
= 2.4, 5.7 Hz), 8.15 (1H, d, J = 6.0 Hz), 8.18.-8.09 (2H, m), 7.68
(1H, dd, J = 2.1, 9.3 Hz), 7.60 (1H, d, J = 9,0 Hz), 7.46 (1H, d, J
= 5.7 Hz), 7.29 (2H, t, J = 7.2 Hz) 31 .sup.1H NMR (DMSO-d.sub.6)
.delta. 11.01 (1H, s), 9.34 (1H, s), 8.72 (1H, d. J = 5.7 Hz), 8.18
(1H, s), 8.12 (1H, J = 6.6 Hz), 7.97-7.90 (4H, m), 7.87 (1H, s),
7.56 (1H, d, J = 3.0 Hz), 7.47 (1H, d, J = 6.0 Hz), 7.36-7.34 (1H,
m) 32 Rf = 0.42 (Hexane/EtOAc, 1/1). (CD.sub.3OD) .delta. 8.91 (1H,
d, J = 6.3 Hz), 8.37 (1H d, J = 6.3 Hz), 8.30 (1H, dd, J = 1.2, 9.0
Hz), 8.25 (1H, dd, J = 1.5, 6.3 Hz), 8.20 (1H, d, J = 0.60 Hz),
8.12 (1H, d, J =1.0 Hz), 7.86 (1H, t, J = 6.2 Hz), 7.80 (1H, s),
7.80-7.78 (1H, m), 7.76 (1H, d, J = 1.8 Hz), 7.71 (1H, d, J = 6.0
Hz), 7.65-7.62 (1H, m), 7.54-7.46 (2H, m). 33 HPLC/MS: (M + H) m/z
462, R.sub.f = 0.28 (EtOAc/Hexanes 10:90). 34 Purified by silica
gel column chromatography (gradient, EtOAc in hexanes from 20% to
70%); Rf = 0.22 (EtOAc/hexanes, 1/1); (3.18 g. 68% yield); LCMS m/z
374 (M + H).sup.+; .sup.1H NMR (DMSO-d.sub.6) .delta. 13.0 (s, 1H),
9.67 (s, 1H), 8.3 (d, 2H), 8.1 (m, 3H), 7.62 (d, 1H), 7.55 (d, 1H),
7.4 (d, 1H), 6.94 (d, 2H), 3.78 (s, 3H). 35 Purified by silica gel
column chromatography (gradient, EtOAc in hexanes from 20% to 70%)
(2.8 g, 70 % yield); LCMS m/z 344 (M + H).sup.+; Rf = 0.24
(EtOAc/hexanes, 1/1); .sup.1H NMR (300 MHz, CD.sub.3OD) .delta.
8.35 (d, 2H), 8.15 (s, 1H), 8.05 (s, 1H), 7.95 (d, 1H), 7.7 (d,
1H), 7.55 (d, 1H), 7.46 (s, 4H). 36 Purified by silica gel column
chromatography (gradient, EtOAc in hexanes from 10% to 70%); Rf =
0.19 (EtOAc/hexanes, 3/2); (55 mg, 15% yield); LCMS m/z 429 (M+
H).sup.+; .sup.1H NMR (DMSO-d6) .delta. 13.07 (s, 1H), 9.65 (s,
1H), 8.24 (d, 2H), 8.1 (m, 2H), 7.66 (d, 1H), 7.56 (d, 1H), 7.4 (d,
1H), 3.73 (s, 4H), 3.21 (4H). 37 Purified by silica gel column
chromatography (gradient, EtOAc in hexanes from 10% to 50%); Rf =
0.3 (EtOAc/hexanes, 1/1); (194 mg, 70% yield); LCMS m/z 420 (M +
H).sup.+ ; .sup.1H NMR (DMSO-d6) .delta. 13.1 (s, 1H), 9.8 (s, 1H),
8.44 (d, 2H), 8.15 (m, 3H), 7.8 (m, 5H), 7.6 (d, 1H), 7.47 (m, 3H),
7.36 (m, 1H). 38 Crude 7e was purified by filtration and washed
with methanol; Rf = 0.16 (MeOH/CH.sub.2Cl.sub.2, 5/95); (0.36 g,
61% yield); LCMS m/z 401 (M + H).sup.+; .sup.1H NMR (DMSO-d6)
.delta. 13.09 (s, 1H), 9,97 (s, 1H), 9.17 (s, 1H), 8.42 (d, 1H),
8.3 (s, 1H), 8.18 (m, 2H), 8.14 (s, 1H), 8.06 (d, 1H), 7.73 (d,
1H), 7.62 (d, 1H), 7.49 (d, 1H). 39 N-BOC protected boronic acid
used in step 3; BOC group was removed by TFA in CH.sub.2CL.sub.2 at
rt. Purified by silica gel column chromatography (gradient, EtOAc
in hexanes from 10% to 75%); (45 mg, 19% yield); LCMS m/z 528 (M +
M)+). 40 The residue was purified by column chromatography (dry
mount, gradient from 20% to 75% EtOAc/Hex) to afford product.
HPLC/MS: (M + H).sup.+ m/z 428.2. Retention time (HPLC/MS,
CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 3.27. 41 The residue was
purified by column chromatography (dry mount, gradient from 20% to
75% EtOAc/Hex) to afford product. HPLC/MS: (M + H).sup.+ m/z 380.1.
Retention time (HPLC/MS, CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 3.26
42 The residue was purified by column chromatography (dry mount,
gradient from 20% to 75% EtOAc/Hex) to afford product. HPLC/MS: (M
+ H).sup.+ m/z 388.2. Retention time (HPLC/MS,
CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.52. 43 The residue was
purified by column chromatography (dry mount, gradient from 20% to
75% EtOAc/Hex) to afford product. HPLC/MS: (M + H).sup.+ m/z 362.1.
Retention time (HPLC/MS, CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.69.
44 The residue was purified by column chromatography (dry mount,
gradient from 20% to 75% EtOAc/Hex) to afford product. HPLC/MS: (M
+ H).sup.+ m/z 374.1. Retention time (HPLC/MS,
CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.43.
45 The residue was purified by column chromatography (dry mount,
gradient from 20% to 75% EtOAc/Hex) to afford product. HPLC/MS: (M
+ H).sup.+ m/z 358.2. Retention time (HPLC/MS,
CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.46. 46 The residue was
purified by column chromatography (dry mount, gradient from 20% to
75% EtOAc/Hex) to afford product. HPLC/MS: (M + H).sup.+ m/z 358.2.
Retention time (HPLC/MS, CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.50.
47 The residue was purified by column chromatography (dry mount,
gradient from 20% to 75% EtOAc/Hex) to afford product. HPLC/MS: (M
+ H).sup.+ m/z 372.2. Retention time (HPLC/MS,
CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.61. 48 The residue was
purified by column chromatography (dry mount, gradient from 20% to
75% EtOAc/Hex) to afford product. HPLC/MS: (M + H).sup.+ m/z 370.2.
Retention time (HPLC/MS, CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.67.
49 The residue was purified by colunm chromatography (dry mount,
gradient from 20% to 75% EtOAc/Hex) to afford product. HPLC/MS: (M
+ H).sup.+ m/z 400.2. Retention time (HPLC/MS,
CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.81. 50 The residue was
purified by column chromatography (dry mount, gradient from 20% to
75% EtOAc/Hex) to afford product. HPLC/MS: (M + H).sup.+ m/z 386.2.
Retention time (HPLC/MS, CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.73.
51 The residue was purified by column chromatography (dry mount,
gradient from 20% to 75% EtOAc/Hex) to afford product. HPLC/MS: (M
+ H).sup.+ m/z 386.2. Retention time (HPLC/MS,
CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.79. 52 The residue was
purified by column chromatography (dry mount, gradient from 20% to
75% EtOAc/Hex) to afford product. HPLC/MS: (M + H).sup.+ m/z 374.2.
Retention time (HPLC/MS, CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.06.
53 The residue was purified by column chromatography (dry mount,
gradient from 20% to 75% EtOAc/Hex) to afford product. HPLC/MS: (M
+ H).sup.+ m/z 374.3. Retention time (HPLC/MS,
CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 2.17. 54 The residue was
purified by column chromatography (dry mount, gradient from 20% to
75% EtOAc/Hex) to afford product. HPLC/MS: (M + H).sup.+ m/z 412.1.
Retention time (HPLC/MS, CH.sub.3CN/H.sub.2O/0.1% TFA): Rt = 3.28.
HPLC/MS: (M + H).sup.+ 412.1 m/z. .sup.1H NMR (DMSO-d6): 13.12 (s,
1H, NH); 9.95 (s, 1H, NH); 8.71 (s, 1H); 8.66 (d, 1H); 8.21 (d,
1H); 8.16 (s, 1H); 8.07 (s, 1H); 7.85 (s, 1H); 7.74 (t, 1H); 7.65
(d, 1H); 7.60 (s, 1H); 7.55 (d, 1H). 55 The residue was purified by
column chromatography (gradient from 35-50% EtoAc/Hexane) to afford
the pure product. HPLC/MS: (M + H).sup.+ 427. Rf = 0.64
(EtOAc/Hexanes, 80/20). .sup.1H-NMR (300 MHz, CD3OD) .delta. = 8.23
(d, 2H), 8.16-8.14 (m, 1H), 8.08 (s, 1H), 7.95 (d, 1H), 7.73 (dd,
1H), 7.61 (d, 1H), 7.40 (d, 1H), 7.01 (d, 2H), 3.32-3.23 (m, 4H),
1.72-1.60 (m, 6H). 56 HPLC/MS: (M + H).sup.+ m/z 426.4, Retention
time (HPLC): Rt = 2.55, Rf = 0.68 in (EtOAc/Hex, 80/20).
.sup.1H-NMR (300 MHz, DMSO d6) .delta. =8.17-7.43 (m, 13H). 57
HPLC/MS: (M + H).sup.+ m/z 421.4, Rf = 0.46 in (MeOH/EtOAc, 07/93).
.sup.1H-NMR (300 MHz, CD3OD) .delta. = 7.5-6.25 (m, 14H).
Example 59
Preparation of
4-(N-5-aminoindazole)-2-(4-phenol)-thieno[3,2-d]pyrimidine
##STR00074##
[0089] To a slurry of
(N-5-aminoindazole)-2-(4-methoxyphenyl)thieno[3,2-d]-pyrimidine
(Example 35, 0.86 g, 2.3 mmol) in anhyd CH.sub.2Cl.sub.2 was added
BBr.sub.3 at -78.degree. C. The mixture was stirred overnight and
warmed to room temperature. The reaction was cooled to 78.degree.
C. and treated with aqueous NH.sub.4Cl slowly to form precipitate.
The solvent was concentrated by rotary evaporation and
co-evaporated with toluene. The residue was treated with mixed
solvent of MeOH and CH.sub.2Cl.sub.2, and then filtered. The
filtrate was added to 6 g of silica gel and the solvent was removed
by rotary evaporation. The residue was poured onto a silica gel
column and eluted with a gradient mobile phase containing EtOAc and
hexane to afford the product (0.42 g, 1.17 mmol, 51% yield). LC/MS
m/z 360 (M+H).sup.+, .sup.1H NMR (DMSO-d.sub.6): .delta. 13.15 (s,
1H), 9.8 (s, 1H), 9.7 (s, 1H), 8.2 (d, 2H), 8.1 (d, 3H), 7.7 (dd,
1H), 7.6 (dd, 1H), 7.4 (d, 1H), 6.8 (d, 2H); mp 297-299.degree.
C.
Example 60
Preparation of
N-(1H-indazol-5-yl)-2-{4-[2-(4-morpholinyl)ethoxy]-phenyl}thieno[3,2-d]py-
rimidin-4-amine
##STR00075##
[0091] To a mixture of (Example 56, 62 mg, 0.17 g), CsCO.sub.3 (100
mg, 0.3 mmol) in acetone (3 mL) was added
N-(2-bromoethylene)-morpholine (34 mg in 1 mL of acetone). The
solution was stirred at room temperature for 4 h and was filtered.
The filtrate was added to 0.4 g of silica gel and the solvent was
removed by rotary evaporation. The residue was poured onto a silica
gel column and eluted with a gradient of EtOAc in hexane (from 50%
to 100%) to afford a white precipitate (30 mg, 37% yield). Rf=0.18
(MeOH/CH.sub.2Cl.sub.2, 5/95). HPLC/MS: m/z 473 (M+H).sup.+;
.sup.1H NMR (DMSO-d.sub.6): .delta.13.07 (s, 1H), 9.71 (s, 1H),
8.30 (d, 2H), 8.09 (m, 3H), 7.70 (d, 1H), 7.57 (d, 1H), 7.43 (d,
1H), 7.02 (d, 2H), 4.14 (t, 2H), 3.57 (t, 4H), 2.68 (t, 2H), 2.46
(t, 4H).
Example 61
Preparation of
N-(1H-indazol-5-yl)-N-(5-{4-[(2-pyridinylamino)methyl]phenyl}-1-benzothie-
n-7-yl)amine
##STR00076##
[0092] Step 1: Preparation of
4-[(2-pyridinylamino)methyl]phenylboronic acid
##STR00077##
[0094] A mixture of 4-formylphenylboronic acid (1 g, 6.67 mmol) and
2-pyridinylamine (2.51 g, 26.7 mmol) in dichloroethane (25 mL) was
stirred under argon at room temperature. To this mixture was added
NaB(OAc).sub.3 (1.84 g, 8.67 mmol). The reaction mixture was
quenched with H.sub.2O after 3 h. The solvent was removed under
reduced pressure and the residue was dissolved in EtOAc and washed
with water. The organic layer was then dried and concentrated in
vacuo. The crude product was then purified by column chromatography
(gradient from 20% to 80% EtOAc/hexane) to give product as
colorless liquid (0.39 g, 30%). HPLC/MS: (M+H).sup.+ 229.1 m/z.
Retention time (LC-MS)=4.54 min. .sup.1H NMR (CD.sub.3OD): 7.90
(1H, d); 7.59 (2H, s); 7.43 (1H, m); 7.30 (2H, d); 6.55 (2H, m);
4.47 (2H
Step 2: Preparation of
N-(1H-indazol-5-yl)-N-(5-{4-[(2-pyridinylamino)methyl]-phenyl}-1-benzothi-
en-7-yl)amine
##STR00078##
[0096] To a mixture of
N-(2-chlorothieno[3,2-d]pyrimidin-4-yl)-N-(1H-indazol-5-yl)amine
(50 mg, 0.16 mmol), Na.sub.2CO.sub.3(aq) (2 M, 1.0 mL) in
butanol/toluene (1:1, 4 mL) a stream of argon was bubbled through
for 15 min. To the mixture was added
4-[(2-pyridinylamino)methyl]phenylboronic acid (0.15 g, 0.66 mmol)
and tetrakis(triphenylphosphine)palladium(0) (0.06 g, 0.08 mmol) in
a single portion. The resulting reaction mixture was heated to
reflux for 24 h. On cooling, the solution was concentrated, taken
up in EtOAc and washed with water. The organic layers were dried
over anhyd sodium sulfate and concentrated in vacuo. The crude
product was purified by silica gel column chromatography (gradient
from 20% to 80% EtOAc/hexane) to give the product (25 mg). HPLC/MS:
(M+H).sup.+ 450.1 m/z. Retention time (LC-MS)=min. .sup.1H NMR
(CD3OD): 8.31 (2H, d); 8.11 (1H, s); 8.05 (1H, s); 7.96 (1H, d);
7.91 (1H, d); 7.71 (1H, d); 7.58 (1H, d); 7.47 (4H, m); 6.61 (2H,
m); 4.55 (2H, s).
Example 62
##STR00079##
[0097] Step 1: Preparation of methyl
3-[(2-quinoxalinylcarbonyl)amino]-2-thiophenecarboxylate
##STR00080##
[0099] To a solution of methyl 3-amino-2-thiophenecarboxylate (0.82
g, 5.2 mmol) and 2-quinoxalinecarbonyl chloride at 0.degree. C. was
added pyridine (1 mL) dropwise. The resulting solution was stirred
at room temperature overnight. The solvent was removed under
reduced pressure and the residue was dissolved in EtOAc, washed
with saturated NH.sub.4Cl, and NaHCO.sub.3. The organic layer was
the dried and concentrated in vacuo. The crude product was used
directly in the next step without further purification.
Step 2: Preparation of
3-[(2-quinoxalinylcarbonyl)amino]-2-thiophenecarboxylic acid
##STR00081##
[0101] Methyl
3-[(2-quinoxalinylcarbonyl)amino]-2-thiophenecarboxylate (0.5 g,
1.6 mmol) was dissolved in CH.sub.2Cl.sub.2 (100 mL) at 0.degree.
C. and BBr.sub.3 (4.8 mL, 1M solution in CH.sub.2Cl.sub.2) was
added dropwise. The solution was stirred at room temperature
overnight. The reaction was quenched with NH.sub.4Cl at 0.degree.
C. The organic layer was washed with NaHCO.sub.3 and separated. The
resulting organic layer was treated slowly with dil HCl until the
solution became acidic. The mixture was concentrated and
redissolved in EtOAc. This solution was washed with water, The
solvent was removed under reduced pressure and the crude product
was re-crystallized from methanol to give the desired product (0.2
g, 42%). HPLC/MS: (M+H).sup.+ 300.1 m/z. Retention time
(LC-MS)=2.65 min. .sup.1H NMR (DMSO-D6): 13.75 (s, 1H, broad);
12.43 (s, 1H); 9.61 (s, 1H); 8.26 (m, 2H); 8.17 (m, 1H); 8.07 (m,
2H); 7.99 (d, 1H).
Step 3: Preparation of
N-[2-(aminocarbonyl)-3-thienyl]-2-quinoxalinecarboxamide
##STR00082##
[0103] A mixture of
3-[(2-quinoxalinylcarbonyl)amino]-2-thiophenecarboxylic acid (0.70
g, 2.3 mmol), 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide
hydrochloride (EDC, 2.24 g, 11.5 mmol), and
4-(dimethylamino)pyridine (DMAP, 1.43 g, 11.5 mmol) in
CH.sub.2Cl.sub.2 (100 mL) was stirred at room temperature for 2 h.
To the reaction mixture was added aqueous ammonia (40%, 5 mL), and
the stirring continued for another 12 h. The solvent was evaporated
to dryness and the resulting solid was washed with satd NH.sub.4Cl
solution (3.times.), NaHCO.sub.3 solution and H.sub.2O. The organic
phase was evaporated to dryness resulting in a white powder (0.32
g, 46%).
[0104] HPLC/MS: (M+H).sup.+ 299.4 m/z
[0105] Retention time (LC-MS)=2.74 min.
Step 4: Preparation of
2-(2-quinoxalinyl)thieno[3,2-d]pyrimidin-4-ol
##STR00083##
[0107] To a solution of
N-[2-(aminocarbonyl)-3-thienyl]-2-quinoxalinecarboxamide (0.24 g,
0.8 mmol) in ethanol (15 mL) was added aqueous NaOH (1.0 M, 2.4
mL). The resulting mixture was stirred at reflux temperature
overnight. The mixture cooled to rt and the solvent was removed
under reduced pressure. The residue was dissolved in water and
acidified with HCl. The white precipitate was filtered and washed
thoroughly with water to give product as yellow powder (0.17 g,
77%). HPLC/MS: (M+H).sup.+ 281.1 m/z
[0108] Retention time (LC-MS)=2.78 min. .sup.1H NMR (DMSO-D6):
12.65 (s, 1H, broad); 9.77 (s, 1H); 8.32 (d, 1H); 8.28 (m, 1H);
8.23 (m, 1H); 8.01 (m, 2H); 7.63 (d, 1H).
Step 5: Preparation of 2
(4-chlorothieno[3,2-d]pyrimidin-2-yl)quinoxaline
##STR00084##
[0110] A solution of 2-(2-quinoxalinyl)thieno[3,2-c]pyrimidin-4-ol
(150 mg, 0.54 mmol) in POCl.sub.3 (5 mL) was heated to reflux and
maintained at reflux overnight. After cooling to rt, excess POCK
was removed under reduced pressure to give the crude product which
was used in the next step without further purification.
Step 6: Preparation of
N-(1H-indazol-5-yl)-2-(2-quinoxalinyl)thieno[3,2-d]-pyrimidin-4-amine
##STR00085##
[0112] Bg9 procedure similar to Example 1, step
2,2-(4-chlorothieno[3,2-d]pyrimidin-2-yl)quinoxaline and
5-aminoindoazole were allowed to react in THF. After the removal of
the solvent, the crude product was purified through column
(gradient from 20% to 80% EtOAc/hexane) to afford the product.
HPLC/MS: (M+H).sup.+ 396.1 m/z. Retention time (LC-MS)=2.42
min.
[0113] Utilizing the method described above for Example 62 and
using the appropriate starting materials, the examples shown below
in Table 2 were prepared.
TABLE-US-00002 TABLE 2 MS Ex. RT (min) [M + No. Structure (LC-MS)
H].sup.+ 63 ##STR00086## 2.76 395 64 ##STR00087## 3.42 350 65
##STR00088## 3.42 344
Example 66
Preparation of
N-(1H-indazol-5-yl)-2-(3-methoxyphenyl)-5-methylfuro[2,3-d]-pyrimidin-4-a-
mine
##STR00089##
[0114] Step 1: Preparation of 2-amino-4-methyl-3-furonitrile
##STR00090##
[0116] To a mixture of malononitrile (0.96 g, 14.6 mmol), acetol
(1.08 g, 14.6 mmol) in methanol (10 mL) at 0.degree. C. was added,
dropwise, triethylamine (2.0 mL). The reaction mixture was stirred
at room temperature overnight. After removal of solvent under
reduced pressure the crude solid was washed with cold isopropanol
to give product as white powder (0.54 g, 30%). HPLC/MS: (M+H).sup.+
123.3 m/z. Retention time (LC-MS)=1.81 min. .sup.1H NMR
(CD.sub.3OD): 6.58 (s, 1H); 1.95 (s, 3H).
Step 2: Preparation of
4-chloro-2-(3-methoxyphenyl)-5-methylfuro[2,3-d]-pyrimidine
##STR00091##
[0118] The Vilsmeier Reagent was prepared by stirring of
3-methoxy-N,N-dimethylbenzamide (1.17 g, 7.9 mmol) and POCl.sub.3
(3.0 g, 19.7 mmol) at 0.degree. C. for 30 minutes. To this reagent
was added 2-amino-4-methyl-3-furonitrile (1.0 g, 6.6 mmol) and dry
dichloroethane (5.0 ml). The reaction mixture was heated to
40.degree. C. and stirred at this temperature for 18 h. The mixture
was then poured into ice water. After adjusting the pH of the
solution to 9 via treatment with NaHCO.sub.3 solution, the solution
was extracted with dichloromethane. The organic layer was then
dried and concentrated. The crude product was purified by silica
gel column chromatography (10/90, ethyl acetate/hexane). HPLC/MS:
(M+H).sup.+ 275.1 m/z. Retention time (LC-MS)=3.99 min. .sup.1H NMR
(DMSO-D6): 8.10 (s, 1H); 7.98 (d, 1H); 7.86 (m, 1H); 7.49 (t, 1H);
7.15 (m, 1H); 3.85 (s, 3H).
Step 3: Preparation of
N-(1H-indazol-5-yl)-2-(3-methoxyphenyl)-5-methylfuro[2,3-d]pyrimidin-4-am-
ine
##STR00092##
[0120] A mixture of
4-chloro-2-(3-methoxyphenyl)-5-methylfuro[2,3-d]pyrimidine and
5-Aminoindazole in butanol (2.0 ml) was heated to 100.degree. C.
overnight. After the removal of the solvent, the crude product was
purified through column (gradient from 20% to 80% ethyl
acetate/hexane) to give product Bay 59-8843 (15.2 mg). HPLC/MS:
(M+H).sup.+ 372.4 m/z. Retention time (LC-MS)=2.53 min. .sup.1H NMR
(DMSO-D6): 13.10 (s, 1H, NH); 8.70 (s, 1H, NH); 8.11 (s, 2H); 7.90
(m, 2H); 7.75 (m, 2H); 7.63 (d, 1H); 7.41 (t, 1H); 7.05 (m, 1H);
3.80 (s, 3H).
[0121] Utilizing a similar procedure to that described above and
substituting the appropriate 4-chloro-2-substituted phenyl
5-methylfluro[2,3 mL]pyrimidine, the following compounds were
prepared.
TABLE-US-00003 TABLE 3 ##STR00093## RT (min) Example (from LC- Mass
Spec No R1 R2 MS) [electrospray] 67 5-Me H 3.31 MH+ 342.1 68 5-Me
4-OMe 3.42 MH+ 372.2 69 5.6-Di- H 3.65 MH+ 356.3 Me 70 5.6-Di-
3-OCH3 3.49 MH+ 386.1 Me LC-MS system: Acetonitrile/Water/0.1% TFA
LC-MS Detector: UV and ELSD
Example 71
Preparation of
3-[4-(1H-indazol-5-ylamino)-5-methylfuro[2,3-d]pyrimidin-2-yl]phenol
##STR00094##
[0123] To a solution of
N-(1H-indazol-5-yl)-2-(3-methoxyphenyl)-5-methylfuro[2,3-d]pyrimidin-4-am-
ine (50.0 mg, 0.13 mmol) in CH.sub.2Cl.sub.2 (20 mL) cooled to
-78.degree. C. was added BBr.sub.3 (0.7 mL, 2.83 mmol, 1M solution
in CH.sub.2Cl.sub.2) drop-wise. The mixture warmed to it and was
stirred overnight. The reaction was quenched with water and the
organic and aqueous phases were separated. The organic layer was
dried and concentrated under reduced pressure. The crude product
was purified by silica gel column chromatography (gradient from 20%
to 80% EtOAc/hexane) to afford are product (8.4 mg, 17.5%).
HPLC/MS: (M+H).sup.+ 358.1 m/z. Retention time (LC-MS) 3.01 min.
.sup.1H NMR (DMSO-D6): 8.54 (s, NH); 8.11 (d, 1H); 8.07 (s, 1H);
7.75 (m, 3H); 7.60 (d, 1H); 7.47 (d, 1H); 7.20 (t, 1H); 6.83 (m,
1H).
Example 72
Preparation of
N-{3-[4-(1H-indazol-5-ylamino)thieno[3,2-d]pyrimidin-2-yl}isonicotinamide
##STR00095##
[0124] Step 1: Preparation of
2-(3-aminophenyl)-N-(1H-indazol-5-yl)thieno[3,2-d]-pyrimidin-4-amine
##STR00096##
[0126] 2-Chloro-N-(1H-indazol-5-yl)thieno[3,2-d]pyrimidin-4-amine
(10 mmol, 1 equivalent) was suspended in dimethyl ethylene glycol
(60 mL) and Na.sub.2CO.sub.3 solution (2M, 10 mL) and flushed with
argon for 20 min. To this suspension 3-aminophenyl boronic acid (25
mmol, 2.5 eq) and Pd(PPh.sub.3).sub.4 (2.5 mmol, 0.25 eq) were
added. The reaction mixture was refluxed under AR at 100.degree. C.
for 48 h. The solvent was evaporated off in vacuo. The residue was
taken into THF (100 mL) plus EtOAc/water. (100 mL, 1:1). The
organic layer was evaporated to dryness. The residue was separated
by silica gel column chromatography (0-5% MeOH in
CH.sub.2Cl.sub.2). The product was obtained as yellow powder (2.04
g, 57%). (M+H).sup.+=359, RT (LC-MS)=1.93.
Step 2: Preparation of
2-(3-aminophenyl)-N-(1H-indazol-5-yl)thieno[3,2-d]-pyrimidin-4-amine
##STR00097##
[0128] To a cold solution of the product of step 1 (3.35 mmol, 1
eq) in dry pyridine (50 mL) was added isonicotonic anhydride (6.7
mmol, 2 eq) in two portions. A precipitate formed shortly after the
addition. The reaction mixture was stirred at room temperature for
4 h and poured into ice and was stirred continued. The solid was
collected by filtration and washed with water. This crude product
was further purified by silica gel column chromatography (0-4%
MeOH/CH.sub.2Cl.sub.2) to afford a pale yellow solid (0.8 g, 50%).
(M+H).sup.+=464, RT (LC-MS)=2.12.
Example 73
##STR00098##
[0129] Preparation of
N-(1H-indazol-5-yl)-N-[2-(2-naphthylamino)thieno[3,2-d]pyrimidin-4-yl]ami-
ne
[0130] To a solution of
2-chloro-N-(1-H-indazol-5-yl)thieno[3,2-d]pyrimidin-4-amine (0.166
mmol) in n-BuOH (1.5 mL) was added 2-aminonaphthylene (0.5 mmol, 3
equivalent) and was stirred at 100.degree. C. for two days. The
resulted solid was collected on funnel, washed with isopropanol and
ether to give a pale gray crystalline product (74%).
(M+H).sup.+=409, RT (LC-MS)=2.56.
[0131] Utilizing this method and substituting the appropriate
starting materials, the compounds shown in Table 5 were also
prepared.
TABLE-US-00004 TABLE 5 ##STR00099## Mass LC-MS Spec Ex. No Ar RT
(min) (source) 73 3-aminophenyl 1.93 359 74 3- 2.12 464
isonicotinamido- phenyl 75 5-(1H- 2.34 398 indolyl)amino 76 4- 2.78
451 phenoxyanilino
Example 77
Preparation of
2-(1,1'-biphenyl-3-yl)-N-(3-methyl-1H-indazol-5-yl)thieno[3,2-d]-pyrimidi-
n-4-amine
##STR00100##
[0133] Step 1: Preparation of 3-methyl-5-nitro-1H-indazole
##STR00101##
[0134] A solution of 2-fluoro-5-nitroacetophenone (1.57 g, 8.6
mmol) in ethylene glycol (50 mL) was added hydrazine (029 g, 9.0
mmol) was stirred for 2 h at room temperature and then heated at
165.degree. C. for 24 h. The reaction mixture was cooled to room
temperature, poured over EtOAc (100 mL), and extracted with
H.sub.2O (2.times.100 mL). The organic layers was dried over
Na.sub.2SO.sub.4 and the solvent was removed in vacuo. The crude
product was purified by silica gel chromatography to afford a light
yellow solid (0.8 g, 53%) Rf=0.2 (EtOAc/hexane, 1/3). .sup.1H NMR
CDCl.sub.3 .delta. 8.63 (s, 1H), 8.23 (d, 2H, J=3 Hz), 7.46 (d, 1H,
J=3 Hz), 2.60 (s, 3H).
Step 2: Preparation of 3-methyl-1H-indazol-5-amine
##STR00102##
[0136] To a stirred solution of the compound prepared in step 1
(0.8 g, 4 mmol) in methanol was added Pd/C catalyst (0.1 g) The
resulting reaction mixture was stirred under a hydrogen atmosphere
(1 atm) at room temperature overnight. The mixture was filtered and
the filtrate was concentrated in vacuo to afford crude product (0.7
g) as light yellow solid that was not further purified. Rf=0.50
(EtOAc/hexane, 1/1). .sup.1H NMR CDCl.sub.3 .delta. 7.20 (s, 1H),
6.90-6.80 (m, 2H), 2.41 (s, 3H).
Step 3: Preparation of
2-chloro-N-(3-methyl-1H-indazol-5-yl)thieno[3,2-d]-pyrimidin-4-amine
##STR00103##
[0138] A mixture of the compound in step 2 (0.7 g, 4.8 mmol),
Example 1, step 1, (0.98 g, 4.8 mmol) and potassium acetate (0.66
g, 6.7 mmol) in THF/H.sub.2O (75 mL, 2/1) was stirred at room
temperature for 16 h. The mixture was extracted with EtOAc, washed
with brine, and dried over NaSO.sub.4. The solvent was filtered and
evaporated to dryness. The residue was purified by silica gel
column chromatography to afford a yellow solid (1.2 g, 80% yield).
Rf=0.3 (EtOAc/hexane, 1/1). .sup.1H NMR (Methanol-d.sub.4) .delta.
7.95-7.80 (m, 2H), 7.63-7.50 (m, 2H), 7.19 (d, 1H, J=3 Hz), 2.40
(s, 3H).
Step 4: Preparation of
2-(1,1'-biphenyl-3-yl)-N-(3-methyl-1H-indazol-5-yl)thieno[3,2-d]pyrimidin-
-4-amine
##STR00104##
[0140] A procedure analogous for that of Example 1, step 3 was
followed. A mixture of the step 3 product (0.4 g, 1.3 mmol),
3-phenylphenylboronic acid, (0.3 g, 1.5 mmol) and sodium
bicarbonate (0.33 g, 3.9 mmol) in DME/H.sub.2O (3/1, 56 mL) was
flushed with Ar for 1 h, and Pd(dppf)Cl.sub.2 was added. The
solution was heated to reflux for 48 h at 100.degree. C. After
removal of solvent in vacuo, the crude product was purified by
silica gel chromatography to afford a white solid (0.35 g, 65%).
Rf=0.2 (EtOAc/hexane, 1/1). .sup.1H NMR (Methanol-d.sub.4) .delta.
8.69 (s, 1H), 8.35 (d, 1H, J=3 Hz), 8.25 (s, 1H), 8.00 (d, 1H, J=3
Hz), 7.70-7.60 (m, 4H), 7.51-7.31 (m, 6H), 2.42 (s, 3H).
Example 78
Preparation of
2-(1-benzothien-2-yl)-N-(1H-indazol-5-yl)period[2,3-d]pyrimidin-4-amine
##STR00105##
[0141] Step 1: Preparation of
2-[(1-benzothien-2-ylcarbonyl)amino]nicotinic acid
##STR00106##
[0142] To a solution of 2-aminonicotinic acid (91.1 g, 8.0 mmol),
triethylamine (2.7 mL, 19.1 mmol) and acetone/H.sub.2O (3:1, 100
mL) was added 1-benzothiophene-2-carbonyl chloride (2.04 g, 10.4
mmol) at 0.degree. C. The resulting solution was allowed to warm to
rt and stir overnight. The volatile solvent was removed under
reduced pressure and the aqueous solution was acidified with HCl
(conc.). The resulting precipitate was filtered and then washed
with EtOAc and dried under reduced pressure to afford the product.
(1.2 g, 52%). NMR (DMSO): 11.7 (1H, broad), 8.60 (1H, m); 8.36 (1H,
s); 8.25 (1H, d); 8.07 (1H, d); 8.02 (1H, d); 7.51 (2H, m); 7.36
(1H, m).
Step 2: Preparation of
2-[(1-benzothien-2-ylcarbonyl)amino]nicotinamide
##STR00107##
[0144] A mixture of 2-[(1-benzothien-2-ylcarbonyl)amino]nicotinic
acid (1.2 g, 4.0 mmol), EDC (2.3 g, 12.0 mmol) and DMAP (1.46 g,
12.0 mmol) in anhyd dichloromethane (50 mL) was stirred at room
temperature for 2 h. To this mixture was added 40% aqueous ammonia
(4.0 mL), and the resulting solution stirred at room temperature
overnight. The solvent was removed in vacuo and the resulting solid
was washed with said NH.sub.4Cl solution, NaHCO.sub.3 solution, and
water. The solid was dried to give product as white powder (0.92 g,
77%). HPLC/MS: (M+H).sup.+ 298.15 m/z Retention time (LC-MS)=2.44
min. .sup.1H NMR (DMSO-D6): 12.25 (1H, s); 8.54 (1H, m); 8.21 (1H,
s); 8.18 (1H, d); 8.07 (2H, m); 7.52 (2H, m); 7.32 (1H, m).
Step 3: Preparation of
2-(1-benzothien-2-yl)pyrido[2,3-d]pyrimidin-4-ol
##STR00108##
[0146] To a solution of
2-[(1-benzothien-2-ylcarbonyl)amino]nicotinamide (0.3 g, 1.0 mmol)
in ethanol (20 mL) was added NaOH (10 N, 0.3 mL, 3.0 mmol). The
resulting solution was heated to reflux overnight. On cooling to rt
the solvent was removed under reduced pressure. The residue was
dissolved in excess of water and acidified with HCl. The resulting
precipitate was filtered and washed with water to afford the
product as yellow powder (0.16 g, 57%). HPLC/MS: (M+H).sup.+ 280.0
m/z; Retention time (LC-MS)=2.66 min; .sup.1H NMR (DMSO-D6): 13.17
(1H, s); 8.94 (1H, m); 8.61 (1H, s); 8.50 (1H, d); 8.08 (1H, d);
7.97 (1H, d); 7.52 (3H, m).
Step 4: Preparation of
2-(1-benzothien-2-yl)-4-chloropyrido[2,3-d]pyrimidine
##STR00109##
[0148] To a suspension of
2-(1-benzothien-2-yl)pyrido[2,3-d]pyrimidin-4-ol (150 mg, 0.54
mmol) in chloroform (10 mL) was added thionyl chloride (0.47 mL,
6.4 mmol) and a catalytic amount of DMF. The reaction was heated to
reflux for 4 h and allowed to cool to rt. The solvent was removed
under reduced pressure and the resultant product was (18.2 mg, 12%)
used directly in the next step without further purification.
HPLC/MS: (M+H).sup.+ 298.2 m/z; Retention time (LC-MS)=3.76 min;
.sup.1H NMR (DMSO-D6): 9.24 (1H, m); 8.73 (1H, d); 8.55 (1H, s);
8.10 (2H, t); 7.86 (1H, m); 7.50 (2H, m).
Step 5: Preparation of
N-[2-(1-benzothien-2-yl)pyrido[2,3-d]pyrimidin-4-yl]-N-(1H-indazol-5-yl)a-
mine
##STR00110##
[0150] A mixture of
2-(1-benzothien-2-yl)-4-chloropyrido[2,3-d]pyrimidine (18.2 mg,
0.06 mmol), 5-aminoindazole (40 mg, 0.3 mmol) and potassium
carbonate (83 mg, 0.6 mmol) in dioxane (20 mL) was heated to
100.degree. C. and continued for 24 h. After removal of the
solvent, the crude product was purified by silica gel column
chromatography (gradient from 20% to 80% EtOAc/hexane) to give the
product (1.0 mg, 4.0%); HPLC/MS: (M+H).sup.+ 395.2 m/z; Retention
time (LC-MS)=2.75 min.
[0151] The following compounds are prepared analogously:
TABLE-US-00005 MS Example (Exact MW No. Structure Mass) (calcd) 79
##STR00111## 372.12 372.45 80 ##STR00112## 406.08 406.90 81
##STR00113## 386.13 386.48 82 ##STR00114## 386.13 386.48 83
##STR00115## 418.14 416.51 84 ##STR00116## 386.13 386.48 85
##STR00117## 420.09 420.93 86 ##STR00118## 390.11 390.44 87
##STR00119## 390.11 390.44 88 ##STR00120## 390.11 390.44 89
##STR00121## 408.10 408.43 90 ##STR00122## 404.12 404.47 91
##STR00123## 440.10 440.45 92 ##STR00124## 386.33 386.48 93
##STR00125## 400.15 400.51 94 ##STR00126## 428.18 428.56 95
##STR00127## 432.14 432.51 96 ##STR00128## 390.11 390.44 97
##STR00129## 465.14 465.54 98 ##STR00130## 452.12 452.50 99
##STR00131## 467.10 467.58 100 ##STR00132## 467.10 467.58 101
##STR00133## 435.13 435.51 102 ##STR00134## 465.14 465.54 103
##STR00135## 467.10 467.58 104 ##STR00136## 412.12 412.48 105
##STR00137## 429.08 429.53 106 ##STR00138## 433.05 433.88 107
##STR00139## 438.14 438.52 108 ##STR00140## 442.08 442.53 109
##STR00141## 470.14 470.53 110 ##STR00142## 492.98 494.40 111
##STR00143## 409.11 409.47 112 ##STR00144## 409.11 409.47 113
##STR00145## 418.10 418.44 114 ##STR00146## 425.11 425.47 115
##STR00147## 457.17 457.56 116 ##STR00148## 441.17 441.56 117
##STR00149## 463.14 463.59 118 ##STR00150## 471.18 471.59 119
##STR00151## 483.11 483.48 120 ##STR00152## 492.11 492.49 121
##STR00153## 443.19 443.58 122 ##STR00154## 463.13 463.99 123
##STR00155## 443.15 443.53 124 ##STR00156## 373.11 373.44 125
##STR00157## 373.11 373.44 126 ##STR00158## 373.11 373.44 127
##STR00159## 387.13 387.47 128 ##STR00160## 402.13 402.48 129
##STR00161## 392.06 392.87 130 ##STR00162## 417.10 417.45 131
##STR00163## 417.10 417.45 132 ##STR00164## 440.10 440.45 133
##STR00165## 456.10 456.45 134 ##STR00166## 408.10 408.43 135
##STR00167## 408.10 408.43 136 ##STR00168## 458.09 458.44 137
##STR00169## 425.12 425.48 138 ##STR00170## 398.11 398.45 139
##STR00171## 362.09 362.41 140 ##STR00172## 395.15 395.49 141
##STR00173## 386.13 386.48 142 ##STR00174## 506.20 506.64 143
##STR00175## 484.09 484.97 144 ##STR00176## 378.16 378.50 146
##STR00177## 359.10 359.41 146 ##STR00178## 373.11 373.44 147
##STR00179## 393.06 393.86 148 ##STR00180## 409.11 409.47 149
##STR00181## 409.11 409.47 150 ##STR00182## 409.11 409.47 151
##STR00183## 392.06 392.87 152 ##STR00184## 388.11 388.45 153
##STR00185## 402.09 402.44 154 ##STR00186## 372.12 372.45 155
##STR00187## 386.13 386.48 156 ##STR00188## 383.10 383.44 157
##STR00189## 372.12 372.45 158 ##STR00190## 402.13 402.48 159
##STR00191## 402.13 402.48 160 ##STR00192## 418.12 418.48 161
##STR00193## 404.11 404.45 162 ##STR00194## 380.14 380.47 163
##STR00195## 401.14 401.50 164 ##STR00196## 442.08 442.42 165
##STR00197## 336.12 336.42 166 ##STR00198## 409.17 409.52 167
##STR00199## 376.09 376.42 168 ##STR00200## 326.09 326.38 169
##STR00201## 322.10 322.39 170 ##STR00202## 380.11 380.43 171
##STR00203## 350.13 350.45 172 ##STR00204## 378.16 378.50 173
##STR00205## 365.14 365.46 174 ##STR00206## 364.15 364.47 176
##STR00207## 366.13 366.45 176 ##STR00208## 455.19 455.59 177
##STR00209## 414.16 414.53 178 ##STR00210## 361.11 361.43 179
##STR00211## 402.13 402.48 180 ##STR00212## 445.08 445.53 181
##STR00213## 436.01 437.33 182 ##STR00214## 398.13 398.49 183
##STR00215## 433.06 433.49 184 ##STR00216## 475.04 475.98 185
##STR00217## 379.07 379.47 186 ##STR00218## 418.17 418.53 187
##STR00219## 434.03 434.43 188 ##STR00220## 402.14 402.48 189
##STR00221## 450.13 450.52 190 ##STR00222## 467.10 467.58 191
##STR00223## 388.11 388.45 192 ##STR00224## 386.13 386.48 193
##STR00225## 386.13 386.48 194 ##STR00226## 408,12 408.49 195
##STR00227## 389.11 389.44 196 ##STR00228## 426.09 426.42 197
##STR00229## 402.13 402.48 198 ##STR00230## 426.09 426.42 199
##STR00231## 388.11 388.45 200 ##STR00232## 422.13 422.51
201 ##STR00233## 378.07 378.48 202 ##STR00234## 440.04 441.34 203
##STR00235## 448.15 448.55 204 ##STR00236## 416.14 416.51 205
##STR00237## 359.10 359.41 206 ##STR00238## 398.13 398.49 207
##STR00239## 412.15 412.52 208 ##STR00240## 456.18 456.58 209
##STR00241## 437.01 438.32 210 ##STR00242## 450.03 451.35 211
##STR00243## 443.13 443.51 212 ##STR00244## 404.18 404.54 213
##STR00245## 409.11 409.47 214 ##STR00246## 436.12 436.50 215
##STR00247## 441.14 441.52 216 ##STR00248## 444.09 444.54 217
##STR00249## 446.07 446.61 218 ##STR00250## 446.11 446.56 219
##STR00251## 451.05 451.48 220 ##STR00252## 453.14 453.53 221
##STR00253## 466.13 466.53 222 ##STR00254## 477.11 477.98 223
##STR00255## 484.10 484.57 224 ##STR00256## 465.14 465.54 225
##STR00257## 404.08 404.41 226 ##STR00258## 393.06 393.86 227
##STR00259## 434.13 434.52 228 ##STR00260## 423.13 423.50 229
##STR00261## 393.17 393.52 230 ##STR00262## 451.09 451.53 231
##STR00263## 398.13 398.49 232 ##STR00264## 462.03 463.37 233
##STR00265## 399.09 399.44 234 ##STR00266## 433.20 433.58 235
##STR00267## 426.16 426.55 236 ##STR00268## 427.16 427.53 237
##STR00269## 467.16 467.56 238 ##STR00270## 457.17 457.56
INTERMEDIATES
Intermediate A
Preparation of thieno[3,2-c]pyridin-2-ylboronic acid
##STR00271##
[0152] Step 1: Preparation of
2,2-dimethoxy-N-(3-thienylmethyl)ethanamine
##STR00272##
[0154] To 3-thiophenecarboxaldehyde (8.75 mL) cooled to 0.degree.
C. was added aminoacetaldehyde dimethylacetal (14.2 mL). The clear
solution was stirred at room temperature for 60 h. The solution was
diluted with ethanol and hydrogenated at 56 psi in the presence of
10% Pd/C (5 g) overnight. The catalyst was filtered off and washed
with MeOH. The solvent was removed by rotary evaporation and
co-evaporated with toluene to afford an oil (19 g, 94% yield).
Step 2: Preparation of
N-(2,2-dimethoxyethyl)-4-methyl-N-(3-thienylmethyl)-benzenesulfonamide
##STR00273##
[0156] To a solution of the compound prepared in step 1, (19 g, 95
mmol) in EtOAc (50 mL) at 15.degree. C. was added triethylamine (12
mL, 85.5 mmol), followed by p-toluenesulfonyl chloride (16.3 g,
85.5 mmol). After the addition was complete, the solution was
stirred at rt overnight. The reaction mixture was diluted with
EtOAc and washed with water three times, HCl (1.0 M), and with said
Na.sub.2CO.sub.3 The solution was dried over MgSO.sub.4, filtered,
and concentrated to give a precipitate (31 g, 87 mmol, 91% yield).
Rf=0.16 (EtOAc/hexane, 1/9).
Step 3: Preparation of thieno[3,2-e]pyridine
##STR00274##
[0158] To a solution of the compound from step 2 (31 g, 0.087 mol)
in dioxane (80 mL) was added conc HCl (45 mL). The solution was
heated to reflux temperature overnight. The mixture was cooled to
rt and washed with CH.sub.2Cl.sub.2. The aqueous phase was basified
with aqueous NH.sub.4OH while cooling with ice and extracted with
CH.sub.2Cl.sub.2. The organic washings were combined and evaporated
to dryness. The residue was purified by silica gel column
chromatography (25% EtOAc in hexanes) to afford a white
precipitate. The precipitate was dissolved with CH.sub.2Cl.sub.2,
dried over MgSO.sub.4, filtered, and concentrated to give 5.97 g of
white precipitate (50% yield).
Step 4: Preparation of
##STR00275##
[0160] To a solution of (0.3 g) in THF (15 mL) was added n-BuLi
(1.4 mL, 1.6 M in hexane) at -78.degree. C. The solution was
stirred at -78.degree. C. for 70 min and triisopropyl borate (0.52
mL, 2.27 mmol) was added. The solution was stirred for an
additional 30 min at -78.degree. C., and then at room temperature
for 30 min. The solvent was concentrated under reduced pressure and
the crude product was used without purification.
Intermediate B
Preparation of 4-(4-morpholinyl)phenylboronic acid
##STR00276##
[0161] Step 1: Preparation of 4-(4-bromophenyl)morpholine
##STR00277##
[0163] A solution of 1-bromo-4-iodobenzene (5.0 g, 18 mmol),
morpholine (1.85 mL, 21 mmol), sodium tert-butoxide (2.4 g, 25
mmol), 18-crown-6 (6.6 g, 25 mmol) in THF (150 mL) was purged with
Ar for 20 min, then BINAP (0.11 g, 0.18 mmol) and
Pd.sub.2(dba).sub.3 (0.16 g, 0.18 mmol) was added. The mixture
turned dark after stirring at room temperature overnight. The
solvent was concentrated under reduced pressure and the residue was
dissolved in diethyl ether and washed with water. The organic phase
was mixed with silica gel, and the solvent was evaporated to
dryness. The residue was purified by silica gel column
chromatography (EtOAc in hexanes 5%) to of white precipitate (250
mg, 5% yield). .sup.1H NMR (CDCl.sub.3): 7.3 (d, 2H), 6.85 (d, 4H),
3.1 (d, 4H).
Step 2: Preparation of 4-(4-morpholinyl)phenylboronic acid
##STR00278##
[0165] To a solution of the compound prepared in step 1 (0.3 g) in
THF (15 mL) was added n-BuLi (0.74 mL, 2 M in pentane) at
-78.degree. C. After 1 h triisopropyl borate (0.86 mL) was added at
-78.degree. C. The solution was warmed up slowly from -78.degree.
C. to room temperature and was stirred overnight. The solution was
added to aqueous NH.sub.4Cl, a white precipitate formed, and EtOAc
was added. The organic solution was separated, concentrated and
co-evaporated with toluene. The residue was washed twice with THF
and filtered. The filtrate was concentrated and dried under high
vacuum to give 0.25 g of light yellow precipitate. LC/MS m/z 208
(M+H).sup.+.
[0166] The preceding examples can be repeated with similar success
by substituting the generically or specifically described reactants
and/or operating conditions of this invention for those used in the
preceding examples.
* * * * *