U.S. patent application number 09/935149 was filed with the patent office on 2002-10-31 for heterocyclic compounds, which are inhibitors of the enzyme dpp-iv.
Invention is credited to Christiansen, Lise Brown, Kanstrup, Anders Bendtz, Kristiansen, Marit, Lundbeck, Jane Marie, Sams, Christian K..
Application Number | 20020161001 09/935149 |
Document ID | / |
Family ID | 26068848 |
Filed Date | 2002-10-31 |
United States Patent
Application |
20020161001 |
Kind Code |
A1 |
Kanstrup, Anders Bendtz ; et
al. |
October 31, 2002 |
Heterocyclic compounds, which are inhibitors of the enzyme
DPP-IV
Abstract
The present invention relates to therapeutically active and
selective inhibitors of the enzyme DPP-IV, pharmaceutical
compositions comprising the compounds and the use of such compounds
for and the manufacture of medicaments for treating diseases that
are associated with proteins which are subject to inactivation by
DPP-IV, such as type 2 diabetes and obesity, as well as methods for
treating diseases that are associated with proteins which are
subject to inactivation by DPP-IV, such as type 2 diabetes and
obesity
Inventors: |
Kanstrup, Anders Bendtz;
(Espergaerde, DK) ; Christiansen, Lise Brown;
(Lyngby, DK) ; Lundbeck, Jane Marie; (Glostrup,
DK) ; Sams, Christian K.; (Frederiksberg C, DK)
; Kristiansen, Marit; (Soborg, DK) |
Correspondence
Address: |
Reza Green, Esq.
Novo Nordisk of North America, Inc.
Suite 6400
405 Lexington Avenue
New York
NY
10174-6401
US
|
Family ID: |
26068848 |
Appl. No.: |
09/935149 |
Filed: |
August 22, 2001 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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09935149 |
Aug 22, 2001 |
|
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PCT/DK01/00467 |
Jul 4, 2001 |
|
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60223240 |
Aug 4, 2000 |
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Current U.S.
Class: |
514/218 ;
514/252.16; 540/575; 544/269 |
Current CPC
Class: |
A61P 43/00 20180101;
A61P 3/04 20180101; C07D 473/04 20130101; A61P 3/10 20180101; C07D
473/08 20130101 |
Class at
Publication: |
514/218 ;
514/265; 514/252.16; 544/269; 540/575 |
International
Class: |
A61K 031/551; A61K
031/522; C07D 473/04 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 4, 2000 |
DK |
PA 2000 01040 |
Claims
1. A compound of formula I 264wherein n and m is one or two
independently; R.sup.1 is C.dbd.O; C.dbd.S; C.sub.1-C.sub.2 alkyl;
C.sub.2 alkenyl; C.sub.2 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl; heteroaryl-C.sub.1-C.sub.3 alkyl, wherein each alkyl,
alkenyl, cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3
alkyl, heteroaryl, or heteroaryl-C.sub.1-C.sub.3 alkyl is
optionally substituted with one or more R.sup.4 independently;
R.sup.2 is H; C.sub.1-C.sub.7 alkyl; C.sub.2-C.sub.7 alkenyl;
C.sub.2-C.sub.7 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl; cyano; halogen;
hydroxy, nitro; --SH; --SR.sup.5; --SOR.sup.5; --SO.sub.2R.sup.5;
carboxy; --CO.sub.2R.sup.4; --CON(R.sup.5).sub.2; C.sub.1-C.sub.10
alkyloxy; C.sub.2-C.sub.10 alkenyloxy; C.sub.2-C.sub.10 alkynyloxy,
aryloxy; heteroaryloxy, wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl, heteroaryl-C.sub.1-C.sub.3 alkyl, alkyloxy; alkenyloxy;
alkynyloxy, aryloxy, or heteroaryloxy is optionally substituted
with one or more R.sup.11 independently; R.sup.3 is H;
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10
alkynyl; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl;
C.sub.1-C.sub.10alkyl-O-C.sub.1-C.sub.5alkyl; carboxy; cyano;
nitro; halogen; hydroxy; wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl-C.sub.1-C.sub.3 alkyl, heteroaryl, or alkyl-O-alkyl is
optionally substituted with one or more R.sup.12 independently; two
R.sup.3 attached to the same carbon atom may form a spiro system;
R.sup.4, R.sup.11, R.sup.12, and R.sup.17 are independently
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10alkenyl;
C.sub.2-C.sub.10alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl; cyano; halogen;
hydroxy, nitro; trifluormethyl; N(R.sup.13).sub.2; .dbd.O; .dbd.S;
C.sub.1C.sub.10 alkyloxy; C.sub.2-C.sub.10 alkenyloxy;
C.sub.2-C.sub.10 alkynyloxy; aryloxy; heteroaryloxy, wherein each
alkyl, alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl,
heteroaryl, alkyloxy; alkenyloxy; alkynyloxy, aryloxy, or
heteroaryloxy is optionally substituted with one or more R.sup.8
independently; two R.sup.4 attached to the same carbon atom may
form a spiroheterocyclic system, preferably hydantoine;
thiohydantoine; oxazolidine-2,5-dione; R.sup.5 is H;
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10
alkynyl; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.5 alkyl; heteroaryl;
heteroaryl-C.sub.1-C.sub.5 alkyl , wherein each alkyl, alkenyl,
alkynyl, cycloalkyl, cycloheteroalkyl, aryl, aryl alkyl,
heteroaryl, or heteroaryl alkyl is optionally substituted with one
or more R.sup.14 independently; R.sup.6 is H; C.sub.1-C.sub.10
alkyl; C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10 alkynyl;
C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7 cycloheteroalkyl; aryl;
heteroaryl, wherein each each alkyl, alkenyl, alkynyl, cycloalkyl,
cycloheteroalkyl, aryl, or heteroaryl is optionally substituted
with one or more R.sup.15 independently; R.sup.7is H;
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10
alkynyl; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; heteroaryl, wherein each each alkyl,
alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl, or heteroaryl
is optionally substituted with one or more R.sup.16 independently;
R.sup.8, R.sup.14, R.sup.15, and R.sup.16 are independently H;
nitro; --OCH.sub.3; cyano; halogen; --OH; --SH; --SCH.sub.3;
R.sup.9 is H; halogen; C.sub.1-C.sub.10 alkyl or aryl, wherein
alkyl or aryl is optionally substituted with one or more R.sup.17
independently R.sup.10 is H; halogen; or, R.sup.9 and R.sup.10 may
be connected to form a cyclopropyl ring; R.sup.13 is H;
C.sub.1-C.sub.10 alkyl or aryl; or a salt thereof with a
pharmaceutically acceptable acid or base; with the exception of the
following compounds:
1,3-dimethyl-7-(2-oxo-propyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dio-
ne,
1,3,1',3',7'-pentamethyl-8-piperazin-1-yl-3,7,3',7'-tetrahydro-7,8'-me-
thanediyl-bis-purine-2,6-dione, 3,4,5-trimethoxy-benzoic acid
2-(1,3-dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydro-purin-7-yl)-
-ethyl ester,
7-[2-Hydroxy-3-(4-methoxy-phenoxy)-propyl]-3-methyl-8-pipera-
zin-1-yl-3,7-dihydro-purine-2,6-dione,
7-[2-hydroxy-2-(4-nitro-phenyl)-eth-
yl]-3-methyl-8-piperazin-1-yl-3,7,8,9-tetrahydro-purine-2,6-dione,
7-Benzyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
7-(4-Chloro-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dion-
e,
7-(2-Chloro-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-di-
one,
7-Ethyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
3-Methyl-8-piperazin-1-yl-1,7-dipropyl-3,7-dihydro-purine-2,6-dione,
3-Methyl-7-(3-methyl-butyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione-
, 7-Butyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
3-Methyl-7-(3-phenyl-propyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dion-
e,
7-But-2-enyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
7-(3-Chloro-but-2-enyl)-3-methyl-8-piperazin-
-yl-3,7-dihydro-purine-2,6-- dione,
7-Heptyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
3-Methyl-7-(3-phenyl-ethyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione-
,
3-Methyl-7-(3-methyl-benzyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dio-
ne,
3-Methyl-7-propyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
and
3-Methyl-7-pentyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione.
2. A compound of formula I 265wherein n and m is one or two
independently; with the proviso that if n is 2 then m is also 2;
R.sup.1 is C.dbd.O; C.dbd.S; C.sub.1-C.sub.2 alkyl; C.sub.2
alkenyl; C.sub.2 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl; heteroaryl-C.sub.1-C.sub.3 alkyl, wherein each alkyl,
alkenyl, cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3
alkyl, heteroaryl, or heteroaryl-C.sub.1-C.sub.3 alkyl is
optionally substituted with one or more R.sup.4 independently;
R.sup.2 is H; C.sub.1-C.sub.7 alkyl; C.sub.2-C.sub.7 alkenyl;
C.sub.2-C.sub.7 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl; cyano; halogen;
hydroxy, nitro; --SH; --SR.sup.5; --SOR.sup.5; --SO.sub.2R.sup.5;
carboxy; --CO.sub.2R.sup.4; --CON(R.sup.5).sub.2; C.sub.1-C.sub.10
alkyloxy; C.sub.2-C.sub.10 alkenyloxy; C.sub.2-C.sub.10 alkynyloxy,
aryloxy; heteroaryloxy, wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl, heteroaryl-C.sub.1-C.sub.3 alkyl, alkyloxy; alkenyloxy;
alkynyloxy, aryloxy, or heteroaryloxy is optionally substituted
with one or more R.sup.11 independently; R.sup.3 is H;
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10
alkynyl; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl;
C.sub.1-C.sub.10alkyl-O-C.sub.1-C.sub.5alkyl; carboxy; cyano;
nitro; halogen; hydroxy; wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl-C.sub.1-C.sub.3 alkyl, heteroaryl, or alkyl-O-alkyl is
optionally substituted with one or more R.sup.12 independently; two
R.sup.3 attached to the same carbon atom may form a spiro system;
R.sup.4, R.sup.11, R.sup.12, and R.sup.17 are independently
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10
alkynyl; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; heteroaryl; cyano; halogen; hydroxy, nitro;
trifluormethyl; N(R.sup.13).sub.2; .dbd.O; .dbd.S; C.sub.1-C.sub.10
alkyloxy; C.sub.2-C.sub.10 alkenyloxy; C.sub.2-C.sub.10 alkynyloxy;
aryloxy; heteroaryloxy, wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, heteroaryl, alkyloxy;
alkenyloxy; alkynyloxy, aryloxy, or heteroaryloxy is optionally
substituted with one or more R.sup.8 independently; two R.sup.4
attached to the same carbon atom may form a spiroheterocyclic
system, preferably hydantoine; thiohydantoine;
oxazolidine-2,5-dione; R.sup.5 is H; C.sub.1-C.sub.10 alkyl;
C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7
cycloalkyl; C.sub.3-C.sub.7 cycloheteroalkyl; aryl;
aryl-C.sub.1-C.sub.5 alkyl; heteroaryl; heteroaryl-C,-C.sub.5 alkyl
, wherein each alkyl, alkenyl, alkynyl, cycloalkyl,
cycloheteroalkyl, aryl, aryl alkyl, heteroaryl, or heteroaryl alkyl
is optionally substituted with one or more R.sup.14 independently;
R.sup.6 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl, wherein each
each alkyl, alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl,
or heteroaryl is optionally substituted with one or more R.sup.15
independently; R.sup.7 is H; C.sub.1-C.sub.10 alkyl;
C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7
cycloalkyl; C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl,
wherein each each alkyl, alkenyl, alkynyl, cycloalkyl,
cycloheteroalkyl, aryl, or heteroaryl is optionally substituted
with one or more R.sup.16 independently; R.sup.8, R.sup.14,
R.sup.15, and R.sup.16 are independently H; nitro; --OCH.sub.3;
cyano; halogen; --OH; --SH; --SCH.sub.3; R.sup.9 is H; halogen;
C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.17 independently R.sup.10 is H; halogen; or, R.sup.9 and
R.sup.10 may be connected to form a cyclopropyl ring; R.sup.13 is
H; C.sub.1-C.sub.10 alkyl or aryl; or a salt thereof with a
pharmaceutically acceptable acid or base;
3. A compound of formula I 266wherein n and m is one or two
independently; R.sup.1 is C.dbd.O; C.dbd.S; C.sub.1-C.sub.2 alkyl;
C.sub.2 alkenyl; C.sub.2 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl; heteroaryl-C.sub.1-C.sub.3 alkyl, wherein each alkyl,
alkenyl, cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3
alkyl, heteroaryl, or heteroaryl-C.sub.1-C.sub.3 alkyl is
optionally substituted with one or more R.sup.4 independently;
R.sup.2 is H; C.sub.1-C.sub.7 alkyl; C.sub.2-C.sub.7 alkenyl;
C.sub.2-C.sub.7 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl; cyano; halogen;
hydroxy, nitro; --SH; --SR.sup.5; --SOR.sup.5; --SO.sub.2R.sup.5;
carboxy; --CO.sub.2R.sup.4; --CON(R.sup.5).sub.2; C.sub.1-C.sub.10
alkyloxy; C.sub.2-C.sub.10 alkenyloxy; C.sub.2-C.sub.10 alkynyloxy,
aryloxy; heteroaryloxy, wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl, heteroaryl-C.sub.1-C.sub.3 alkyl, alkyloxy; alkenyloxy;
alkynyloxy, aryloxy, or heteroaryloxy is optionally substituted
with one or more R.sup.11 independently; R.sup.3 is
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10
alkynyl; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl;
C.sub.1-C.sub.10alkyl-O-C.sub.1-C.sub.5alkyl; carboxy; cyano;
nitro; halogen; hydroxy; wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl-C.sub.1-C.sub.3 alkyl, heteroaryl, or alkyl-O-alkyl is
optionally substituted with one or more R.sup.12 independently; two
R.sup.3 attached to the same carbon atom may form a spiro system;
R.sup.4, R.sup.11, R.sup.12, and R.sup.17 are independently
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10
alkynyl; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; heteroaryl; cyano; halogen; hydroxy, nitro;
trifluormethyl; N(R.sup.13).sub.2; .dbd.O; .dbd.S; C.sub.1-C.sub.10
alkyloxy; C.sub.2-C.sub.10 alkenyloxy; C.sub.2-C.sub.10 alkynyloxy;
aryloxy; heteroaryloxy, wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, heteroaryl, alkyloxy;
alkenyloxy; alkynyloxy, aryloxy, or heteroaryloxy is optionally
substituted with one or more R.sup.8 independently; two R.sup.4
attached to the same carbon atom may form a spiroheterocyclic
system, preferably hydantoine; thiohydantoine;
oxazolidine-2,5-dione; R.sup.5 is H; C.sub.1-C.sub.10 alkyl;
C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7
cycloalkyl; C.sub.3-C.sub.7 cycloheteroalkyl; aryl;
aryl-C.sub.1-C.sub.5 alkyl; heteroaryl; heteroaryl-C.sub.1-C.sub.5
alkyl , wherein each alkyl, alkenyl, alkynyl, cycloalkyl,
cycloheteroalkyl, aryl, aryl alkyl, heteroaryl, or heteroaryl alkyl
is optionally substituted with one or more R.sup.14 independently;
R.sup.6 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl, wherein each
each alkyl, alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl,
or heteroaryl is optionally substituted with one or more R.sup.15
independently; R.sup.7 is H; C.sub.1-C.sub.10 alkyl;
C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7
cycloalkyl; C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl,
wherein each each alkyl, alkenyl, alkynyl, cycloalkyl,
cycloheteroalkyl, aryl, or heteroaryl is optionally substituted
with one or more R.sup.16 independently; R.sup.8, R.sup.14,
R.sup.15, and R.sup.16 are independently H; nitro; --OCH.sub.3;
cyano; halogen; --OH; --SH; --SCH.sub.3; R.sup.9 is H; halogen;
C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.17 independently R.sup.10 is H; halogen; or, R.sup.9 and
R.sup.10 may be connected to form a cyclopropyl ring; R.sup.13 is
H; C.sub.1-C.sub.10 alkyl or aryl; or a salt thereof with a
pharmaceutically acceptable acid or base;
4. A compound according to any one of the claims 1 to 3 wherein
R.sup.1 is C.dbd.O; C.sub.1-C.sub.2 alkyl; C.sub.2 alkenyl; C.sub.2
alkynyl ; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; or heteroaryl, wherein each alkyl, alkenyl,
cycloalkyl, cycloheteroalkyl, aryl, or heteroaryl is optionally
substituted with one or more R.sup.4 independently.
5. A compound according to claim 4 wherein R.sup.1 is C.dbd.O;
C.sub.1-C.sub.2 alkyl; C.sub.3-C.sub.7 cycloalkyl; aryl; or
heteroaryl, wherein each alkyl, cycloalkyl, aryl, or heteroaryl is
optionally substituted with one or more R.sup.4 independently.
6. A compound according to claim 5 wherein R.sup.1 is C.dbd.O or
aryl optionally substituted with one or more R.sup.4
independently.
7. A compound according to claim 6 wherein R.sup.1 is aryl
optionally substituted with one or more R.sup.4 independently.
8. A compound according to claim 7 wherein R.sup.1 is aryl.
9. A compound according to claim 8 wherein R.sup.1 is phenyl.
10. A compound according to any one of the claims 1 to 9 wherein
R.sup.2 is H; C.sub.1-C.sub.7 alkyl; C.sub.2-C.sub.7 alkenyl;
C.sub.2-C.sub.7 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl; cyano; halogen;
hydroxy, nitro; --SH; --SR.sup.5; --SOR.sup.5; --SO.sub.2R.sup.5;
--CO.sub.2R.sup.4; C.sub.1-C.sub.10 alkyloxy; C.sub.2-C.sub.10
alkenyloxy; C.sub.2-C.sub.10 alkynyloxy, wherein each alkyl,
alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl, heteroaryl,
alkyloxy, alkenyloxy, or alkynyloxy is optionally substituted with
one or more R.sup.11 independently.
11. A compound according to claim 10 wherein R.sup.2 is H;
C.sub.1-C.sub.7 alkyl; C.sub.3-C.sub.7 cycloheteroalkyl; aryl;
cyano; halogen; nitro; --SR.sup.5; --SO.sub.2R.sup.5;
--CO.sub.2R.sup.4; or C.sub.1-C.sub.10 alkyloxy; wherein each
alkyl, cycloheteroalkyl, aryl, or alkyloxy is optionally
substituted with one or more R.sup.11 independently.
12. A compound according to claim 11 wherein R.sup.2 is H;
C.sub.1-C.sub.7 alkyl; C.sub.3-C.sub.7 cycloheteroalkyl; aryl;
cyano; halogen; --CO.sub.2R.sup.4; or C.sub.1-C.sub.10 alkyloxy;
wherein each alkyl, cycloheteroalkyl, aryl, or alkyloxy is
optionally substituted with one or more R.sup.11 independently.
13. A compound according to claim 12 wherein R.sup.2 is H;
C.sub.1-C.sub.7 alkyl; cyano; halogen; or C.sub.1-C.sub.10
alkyloxy; wherein each alkyl or alkyloxy is optionally substituted
with one or more R.sup.11 independently.
14. A compound according to claim 13 wherein R.sup.2 is H; cyano or
halogen.
15. A compound according to claim 14 wherein R.sup.2 is H.
16. a compound according to any one of the claims 1, 2 and 4 to 15
wherein R.sup.3 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
aryl; C.sub.1-C.sub.10alkyl-O-C.sub.1-C.sub.5alkyl; cyano; nitro;
halogen; hydroxy; wherein each alkyl, alkenyl, alkynyl, cycloalkyl,
aryl, or alkyl-O-alkyl is optionally substituted with one or more
R.sup.12 independently; two R.sup.3 attached to the same carbon
atom may form a spiro system.
17. A compound according to claim 16 wherein R.sup.3 is H;
C.sub.1-C.sub.10 alkyl;
C.sub.1-C.sub.10alkyl-O-C.sub.1-C.sub.5alkyl; hydroxy; wherein
alkyl, or alkyl-O-alkyl is optionally substituted with one or more
R.sup.12 independently; two R.sup.3 attached to the same carbon
atom may form a spiro system.
18. A compound according to claim 17 wherein R.sup.3 is H or
C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.12 independently; two R.sup.3 attached to the same carbon
atom may form a spiro system.
19. A compound according to claim 18 wherein R.sup.3 is H or
C.sub.1-C.sub.10 alkyl.
20. A compound according to claim 19 wherein R.sup.3 is methyl,
ethyl, or isopropyl.
21. A compound according to claim 19 wherein R.sup.3 is H.
22. A compound according to claim 3 wherein R.sup.3 is
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10
alkynyl; C.sub.3-C.sub.7 cycloalkyl; aryl;
C.sub.1-C.sub.10alkyl-O-C.sub.1-C.sub.5- alkyl; cyano; nitro;
halogen; hydroxy; wherein each alkyl, alkenyl, alkynyl, cycloalkyl,
aryl, or alkyl-O-alkyl is optionally substituted with one or more
R.sup.12 independently; two R.sup.3 attached to the same carbon
atom may form a spiro system.
23. A compound according to claim 22 wherein R.sup.3 is
C.sub.1-C.sub.10 alkyl;
C.sub.1-C.sub.10alkyl-O-C.sub.1-C.sub.5alkyl; hydroxy; wherein
alkyl, or alkyl-O-alkyl is optionally substituted with one or more
R.sup.12 independently; two R.sup.3attached to the same carbon atom
may form a spiro system.
24. A compound according to claim 23 wherein R.sup.3 is
C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.12 independently; two R.sup.3 attached to the same carbon
atom may form a spiro system.
25. A compound according to claim 24 wherein R.sup.3 is
C.sub.1-C.sub.10 alkyl.
26. A compound according to claim 30 wherein R.sup.3 is methyl,
ethyl, or isopropyl
27. A compound according to any one of the claims 1 to 26 wherein
R.sup.4 is C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl; aryl;
heteroaryl; cyano; halogen; hydroxy, nitro; wherein each alkyl,
alkenyl, alkynyl, cycloalkyl, aryl, or heteroaryl is optionally
substituted with one or more R.sup.8 independently.
28. A compound according to claim 27 wherein R.sup.4 is
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; or
C.sub.2-C.sub.10 alkynyl; wherein each alkyl, alkenyl, or alkynyl
is optionally substituted with one or more R.sup.8
independently.
29. A compound according to claim 28 wherein R.sup.4 is
C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.8 independently.
30. A compound according to claim 29 wherein R.sup.4 is
C.sub.1-C.sub.10 alkyl.
31. A compound according to claim 30 wherein R.sup.4 is methyl.
32. A compound according to any one of the claims 1 to 31 wherein
R.sup.5 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl; aryl;
heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, aryl,
or heteroaryl is optionally substituted with one or more R.sup.14
independently.
33. A compound according to claim 32 wherein R.sup.5 is
C.sub.1-C.sub.10 alkyl or aryl; wherein each alkyl or aryl is
optionally substituted with one or more R.sup.14 independently.
34. A compound according to any one of the claims 1 to 33 wherein
R.sup.6 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl; or aryl;
wherein each each alkyl, alkenyl, alkynyl, cycloalkyl, or aryl is
optionally substituted with one or more R.sup.15 independently.
35. A compound according to claim 34 wherein R.sup.6 is H;
C.sub.1-C.sub.10 alkyl; or C.sub.2-C.sub.10 alkenyl; wherein each
each alkyl or alkenyl is optionally substituted with one or more
R.sup.15 independently.
36. A compound according to claim 35 wherein R.sup.6 is H or
C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.15 independently.
37. A compound according to claim 36 wherein R.sup.6 is H.
38. A compound according to claim 36 wherein R.sup.6 is
C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.15 independently.
39. A compound according to claim 38 wherein R.sup.6 is
C.sub.1-C.sub.10 alkyl.
40. A compound according to claim 39 wherein R.sup.6 is methyl.
41. A compound according to any one of the claims 1 to 40 wherein
R.sup.7 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; or
C.sub.2-C.sub.10 alkynyl, wherein each each alkyl, alkenyl, or
alkynyl is optionally substituted with one or more R.sup.16
independently.
42. A compound according to claim 41 wherein R.sup.7 is
C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.16 independently.
43. A compound according to claim 42 wherein R.sup.7 is
C.sub.1-C.sub.10 alkyl.
44. A compound according to any one of the claims 1 to 43 wherein
R.sup.8 is --OCH.sub.3.
45. A compound according to any one of the claims 1 to 44 wherein
R.sup.9 is aryl.
46. A compound according to any one of the claims 1 to 45 wherein
R.sup.11 is C.sub.1-C.sub.10 alkyl; aryl; cyano; halogen; wherein
each alkyl or aryl is optionally substituted with one or more
R.sup.8 independently.
47. A compound according to claim 46 wherein R.sup.11 is
halogen.
48. A compound according to any one of the claims 1 to 47 wherein
R.sup.12 is C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; aryl; heteroaryl; cyano; halogen;
hydroxy, nitro; wherein each alkyl, alkenyl, alkynyl, aryl,
heteroaryl is optionally substituted with one or more R.sup.8
independently.
49. A compound according to claim 48 wherein R.sup.12 is aryl;
heteroaryl; or hydroxy; wherein each aryl and heteroaryl is
optionally substituted with one or more R.sup.8 independently.
50. A compound according to claim 49 wherein R.sup.12 is phenyl,
pyridyl, or pyrrolidinyl.
51. A compound according to claim 49 wherein R.sup.12 is
hydroxy.
52. A compound according to any one of the claims 1 to 51 wherein
R.sup.14 is halogen.
53. A compound that fulfils all of the following three criteria: 1.
Contains the structural element of Formula III 267 wherein n and m
is one or two independently; 2. has a molecular weight of 500
daltons or less; 3. has a DPP-IV inhibition constant Ki of 500 nM
or less
54. A compound according to any one of the preceding claims
selected from the following:
7-Benzyl-8-(6-hydroxymethyl-[1,4]diazepan-1-yl)-1,3-dimeth-
yl-3,7-dihydropurine-2,6-dione.
7-Benzyl-8-(6-hydroxy-[1,4]diazepan-1-yl)--
1,3-dimethyl-3,7-dihydropurine-2,6-dione
7-Benzyl-8-(3-hydroxymethyl-[1,4]-
diazepan-1-yl)-1,3-dimethyl-3,7-dihydropurine-2,6-dione
7-Benzyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-dione
1,3-Dimethyl-7-(4-methylbenzyl)-8-piperazin-1-yl-3,7-dihydropurine-2,6-di-
one
3-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7-y-
lmethyl) benzonitrile
2-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-t-
etrahydropurin-7-ylmethyl) benzonitrile
1,3-Dimethyl-7-(1-phenylethyl)-8-p-
iperazin-1-yl-3,7-dihydropurine-2,6-dione
7-(2-Iodobenzyl)-1,3-dimethyl-8--
piperazin-1-yl-3,7-dihydropurine-2,6-dione
1,3-Dimethyl-8-piperazin-1-yl-7-
-(2-trifluoromethylbenzyl)-3,7-dihydropurine-2,6-dione
1,3-Dimethyl-7-naphthalen-1-ylmethyl-8-piperazin-1-yl-3,7-dihydropurine-2-
,6-dione
1,3-Dimethyl-7-naphthalen-2-ylmethyl-8-piperazin-1-yl-3,7-dihydro-
purine-2,6-dione
7-(3-Bromobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihyd-
ropurine-2,6-dione
7-Benzyl-8-(3-isopropylpiperazin-1-yl)-1,3-dimethyl-3,7-
-dihydropurine-2,6-dione
7-Benzyl-8-[1,4]diazepan-1-yl-1,3-dimethyl-3,7-di-
hydro-purine-2,6-dione
1,3-Dimethyl-7-(2-oxo-2-pyrrolidin-1-yl-ethyl)-8-pi-
perazin-1-yl-3,7-dihydro-purine-2,6-dione
2-(8-[1,4]Diazepan-1-yl-1,3-dime-
thyl-2,6-dioxo-1,2,3,6-tetrahydro-purin-7-ylmethyl)-benzonitrile
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1,3-dimethyl-3,7-dihydro-purine-2,-
6-dione
7-(2-Difluoromethoxy-benzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dih-
ydro-purine-2,6-dione
7-(2,3-Dimethoxy-benzyl)-1,3-dimethyl-8-piperazin-1--
yl-3,7-dihydro-purine-2,6-dione
1,3-Dimethyl-8-piperazin-1-yl-7-(2-trifluo-
romethoxy-benzyl)-3,7-dihydro-purine-2,6-dione
1,3-Dimethyl-8-piperazin-1--
yl-7-(2-trifluoromethylsulfanyl-benzyl)-3,7-dihydro-purine-2,6-dione
4-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydro-purin-7-yl)-
-butyronitrile
R)-7-Benzyl-8-(3-isopropylpiperazin-1-yl)-1,3-dimethyl-3,7--
dihydropurine-2,6-dione
S)-7-Benzyl-8-(3-isopropylpiperazin-1-yl)-1,3-dime-
thyl-3,7-dihydropurine-2,6-dione
7-Benzyl-8-(6,9-diazaspiro[4.5]dec-9-yl)--
1,3-dimethyl-3,7-dihydropurine-2,6-dione
7-Benzyl-8-(piperazin-3-spiro-3'--
bicyclo[2,2,1]heptane-1-yl)-1,3-dimethyl-3,7-dihydropurine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-methoxy-benzyl)-1,3-dimethyl-3,7-dihydro-purine-
-2,6-dione
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-naphthalen-1-ylmethyl-3,7-d-
ihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-fluoro-benzyl)-1,3-dimet-
hyl-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-me-
thyl-benzyl)-3,7-dihydro-purine-2,6-dione
7-(2-Chloro-benzyl)-8-[1,4]diaze-
pan-1-yl-1,3-dimethyl-3,7-dihydro-purine-2,6-dione
7-(2-Bromo-benzyl)-8-[1-
,4]diazepan-1-yl-1,3-dimethyl-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-trifluoromethyl-benzyl)-3,7-dihydr-
o-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-nitro-benzyl)-3,-
7-dihydro-purine-2,6-dione
3-Benzyl-8-piperazin-1-yl-7-(2-trifluoromethyl--
benzyl)-3,7-dihydro-purine-2,6-dione
3,7-Dibenzyl-1-(2-hydroxy-ethyl)-8-pi-
perazin-1-yl-3,7-dihydro-purine-2,6-dione
3-Benzyl-7-phenethyl-8-piperazin-
-1-yl-3,7-dihydro-purine-2,6-dione
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-3,7-d- ihydro-purine-2,6-dione
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-
-purine-2,6-dione
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-1-propyl-3,7-dihydro-p-
urine-2,6-dione
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-1-(2-hydroxy-ethyl)-3,7--
dihydro-purine-2,6-dione
2-(3,7-Dibenzyl-8-[1,4]diazepan-1-yl-2,6-dioxo-2,-
3,6,7-tetrahydro-purin-1-yl)-N,N-diethyl-acetamide
1,3,7-Tribenzyl-8-piper- azin-1-yl-3,7-dihydro-purine-2,6-dione
1,3,7-Tribenzyl-8-[1,4]diazepan-1-y- l-3,7-dihydro-purine-2,6-dione
(S)-7-Benzyl-8-(3-benzyloxymethylpiperazin--
1-yl)-1,3-dimethyl-3,7-dihydropurine-2,6-dione
3,7-Dibenzyl-8-piperazin-1--
yl-1-propyl-3,7-dihydro-purine-2,6-dione
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-
-1-propyl-3,7-dihydro-purine-2,6-dione
3,7-Dibenzyl-8-piperazin-1-yl-3,7-d- ihydro-purine-2,6-dione
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-3,7-dihydro-puri- ne-2,6-dione
2-(3-Benzyl-2,6-dioxo-8-piperazin-1-yl-1-propyl-1,2,3,6-tetra-
hydro-purin-7-ylmethyl)-benzonitrile
2-(3-Benzyl-8-[1,4]diazepan-1-yl-2,6--
dioxo-1-propyl-1,2,3,6-tetrahydro-purin-7-ylmethyl)-benzonitrile
2-(3-Benzyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydro-purin-7-ylmethy-
l)-benzonitrile
2-(3-Benzyl-8-[1,4]diazepan-1-yl-2,6-dioxo-1,2,3,6-tetrahy-
dro-purin-7-ylmethyl)-benzonitrile
3-Benzyl-7-(2-iodo-benzyl)-8-piperazin--
1-yl-1-propyl-3,7-dihydro-purine-2,6-dione
3-Benzyl-8-[1,4]diazepan-1-yl-7-
-(2-iodo-benzyl)-1-propyl-3,7-dihydro-purine-2,6-dione
3-Benzyl-7-(2-iodo-benzyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
3-Benzyl-8-[1,4]diazepan-1-yl-7-(2-iodo-benzyl)-3,7-dihydro-purine-2,6-di-
one
7-Benzyl-3-methyl-8-piperazin-1-yl-1-propyl-3,7-dihydro-purine-2,6-dio-
ne
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-propyl-3,7-dihydro-purine-2,6--
dione
7-Benzyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-purine-2,6-dione
2-(3-Methyl-2,6-dioxo-8-piperazin-1-yl-1-propyl-1,2,3,6-tetrahydro-purin--
7-ylmethyl)-benzonitrile
2-(8-[1,4]Diazepan-1-yl-3-methyl-2,6-dioxo-1-prop-
yl-1,2,3,6-tetrahydro-purin-7-ylmethyl)-benzonitrile
2-(8-[1,4]Diazepan-1-yl-3-methyl-2,6-dioxo-1,2,3,6-tetrahydro-purin-7-ylm-
ethyl)-benzonitrile
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-1-propyl-3-
,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methy-
l-1-propyl-3,7-dihydro-purine-2,6-dione
7-(2-Iodo-benzyl)-3-methyl-8-piper-
azin-1-yl-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-iodo-benz-
yl)-3-methyl-3,7-dihydro-purine-2,6-dione
3-Benzyl-8-[1,4]diazepan-1-yl-(3-
-hydroxy-propyl)-7-(2-iodo-benzyl)-3,7-dihydro-purine-2,6-dione
3-Benzyl-8-[1,4]diazepan-1-yl-1-(2-ethoxy-ethyl)-7-(2-iodo-benzyl)-3,7-di-
hydro-purine-2,6-dione
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(3-phenyl--
allyl)-3,7-dihydro-purine-2,6-dione
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-
-1-(2-oxo-2-phenyl-ethyl)-3,7-dihydro-purine-2,6-dione
2-(7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-pu-
rin-1-ylmethyl)-benzonitrile
(7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-2,6-d-
ioxo-2,3,6,7-tetrahydro-purin-1-yl)-acetonitrile
3-Methyl-7-(2-methyl-thia-
zol-4-ylmethyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-3-methyl-7-(2-methyl-thiazol-4-ylmethyl)-3,7-dihydro-
-purine-2,6-dione
3-Methyl-7-(2-oxo-2-phenyl-ethyl)-8-piperazin-1-yl-3,7-d-
ihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-3-methyl-7-(2-oxo-2-phenyl-et-
hyl)-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-3-methyl-7-phenethy-
l-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1-(3-hydroxy-propyl)-7-
-(2-iodo-benzyl)-3-methyl-3,7-dihydro-purine-2,6-dione
1-(3-Hydroxy-propyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihy-
dro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1-(2-ethoxy-ethyl)-7-(2-iodo-ben-
zyl)-3-methyl-3,7-dihydro-purine-2,6-dione
1-(2-Ethoxy-ethyl)-7-(2-iodo-be-
nzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(2-phenoxy-ethyl)-3,7-d-
ihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1-[2-(2-met-
hoxy-ethoxy)-ethyl]-3-methyl-3,7-dihydro-purine-2,6-dione
7-(2-Iodo-benzyl)-1-[2-(2-methoxy-ethoxy)-ethyl]-3-methyl-8-piperazin-1-y-
l-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1-(3,5-dimethoxy-benzy-
l)-7-(2-iodo-benzyl)-3-methyl-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1-(3-methoxy-benzyl)-3-methyl-3,7--
dihydro-purine-2,6-dione
7-Biphenyl-2-ylmethyl-8-[1,4]diazepan-1-yl-3-meth-
yl-3,7-dihydro-purine-2,6-dione
7-(2-Bromo-benzyl)-8-[1,4]diazepan-1-yl-3--
methyl-3,7-dihydro-purine-2,6-dione
7-(2-Chloro-benzyl)-8-[1,4]diazepan-1--
yl-3-methyl-3,7-dihydro-purine-2,6-dione
7-Benzyl-8-(3,5-dimethyl-piperazi-
n-1-yl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione
7-(4-Methoxybenzyl)-1,3--
dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-dione
(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7-yl)-ph-
enylacetic acid methyl ester
7-(5-Chloro-2-nitrobenzyl)-1,3-dimethyl-8-pip-
erazin-1-yl-3,7-dihydropurine-2,6-dione
4-(1,3-Dimethyl-2,6-dioxo-8-pipera-
zin-1-yl-1,2,3,6-tetrahydropurin-7-ylmethyl) benzonitrile
7-(4-Methanesulfonylbenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropuri-
ne-2,6-dione
7-(2-Fluoro-6-nitrobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7--
dihydropurine-2,6-dione
7-(4-Benzyloxybenzyl)-1,3-dimethyl-8-piperazin-1-y-
l-3,7-dihydropurine-2,6-dione
7-(2,4-Dichlorobenzyl)-1,3-dimethyl-8-pipera-
zin-1-yl-3,7-dihydropurine-2,6-dione
1,3-Dimethyl-8-piperazin-1-yl-7-(4-tr-
ifluoromethylbenzyl)-3,7-dihydropurine-2,6-dione
7-Biphenyl-4-ylmethyl-1,3-
-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-dione
3-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7-ylme-
thyl) benzoic acid methyl ester
4-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-
-1,2,3,6-tetrahydropurin-7-ylmethyl) benzoic acid methyl ester
7-Biphenyl-2-ylmethyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-
-dione
7-(4-tert-Butylbenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropur-
ine-2,6-dione
1,3-Dimethyl-8-piperazin-1-yl-7-(4-trifluoromethoxybenzyl)-3-
,7-dihydropurine-2,6-dione
7-(3,4-Dichlorobenzyl)-1,3-dimethyl-8-piperazin-
-1-yl-3,7-dihydropurine-2,6-dione
1,3-Dimethyl-8-piperazin-1-yl-7-(4-[1,2,-
3]thiadiazol-4-ylbenzyl)-3,7-dihydropurine-2,6-dione
4-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7-ylme-
thyl)-3-methoxybenzoic acid methyl ester
7-Cyclohexylmethyl-1,3-dimethyl-8-
-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
7-Benzyl-8-(2,5-diaza-bicyclo-
[2.2.1]hept-2-yl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione
8-(6-Benzyl-[1,4]diazepan-1-yl)-7-(2-iodo-benzyl)-1,3-dimethyl-3,7-dihydr-
o-purine-2,6-dione
(S)-7-Benzyl-8-(3-hydroxymethylpiperazin-1-yl)-1,3-dime-
thyl-3,7-dihydropurine-2,6-dione
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-ox-
o-2-pyrrolidin-1-yl-ethyl)-3,7-dihydro-purine-2,6-dione
7-(2-Iodo-benzyl)-1,3-dimethyl-8-(6-pyridin-2-ylmethyl-[1,4]diazepan-1-yl-
)-3,7-dihydro-purine-2,6-dione
7-(2-Bromo-benzyl)-1,3-dimethyl-8-(6-pyridi-
n-2-ylmethyl-[1,4]diazepan-1-yl)-3,7-dihydro-purine-2,6-dione (S)
7-Benzyl-8-(3-benzyl-piperazin-1-yl)-1,3-dimethyl-3,7-dihydro-purine-2,6--
dione
7-Benzyl-1,3-dimethyl-8-(3-phenethyl-piperazin-1-yl)-3,7-dihydro-pur-
ine-2,6-dione
(R)-7-Benzyl-8-(3-benzylpiperazin-1-yl)-1,3-dimethyl-3,7-dih-
ydropurine-2,6-dione
7-Benzyl-8-(3-(2-hydroxy-benzyl)-piperazin-1-yl)-1,3--
dimethyl-3,7-dihydro-purine-2,6-dione
7-Benzyl-8-(3-(2-methoxy-benzyl)-pip-
erazin-1-yl)1,3-dimethyl-3,7-dihydro-purine-2,6-dione (R)
7-Benzyl-8-(3-(4-methoxy-benzyl)-piperazin-1-yl)1,3-dimethyl-3,7-dihydro--
purine-2,6-dione
(R)-7-Benzyl-8-(3-(4-hydroxy-benzyl)-piperazin-1-yl)-1,3--
dimethyl-3,7-dihydro-purine-2,6-dione
(R)-7-Benzyl-1,3-dimethyl-8-(3-(4-ni-
tro-benzyl)-piperazin-1-yl)-3,7-dihydro-purine-2,6-dione
(R)-7-Benzyl-8-(3-(4-fluoro-benzyl)-piperazin-1-yl)-1,3-dimethyl-3,7-dihy-
dro-purine-2,6-dione
(R)-4-(4-(7-Benzyl-1,3-dimethyl-2,6-dioxo-2,3,6,7-tet-
rahydro-1H-purin-8-yl)-piperazin-2-ylmethyl)-benzonitrile
(R)-6-(8-(3-Benzyl-piperazin-1-yl)-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahy-
dro-purin-7-ylmethyl)-nicotinonitrile
(R)-7-Benzyl-1,3-dimethyl-8-(3-thiaz-
ol-4-ylmethyl-piperazin-1-yl)-3,7-dihydro-purine-2,6-dione
(R)-2-[1,3-Dimethyl-2,6-dioxo-8-(3-thiophen-2-ylmethyl-piperazin-1-yl)-1,-
2,3,6-tetrahydro-purin-7-ylmethyl]-benzonitrile
7-Benzyl-8-[1,4]diazepan-1-
-yl-3-methyl-1-(tetrahydro-furan-2-ylmethyl)-3,7-dihydro-purine-2,6-dione
7-Benzyl-1-(2-cyclohexyl-ethyl)-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-
-purine-2,6-dione
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(5-methyl-hexyl-
)-3,7-dihydro-purine-2,6-dione
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(3-
-methyl-butyl)-3,7-dihydro-purine-2,6-dione
7-Benzyl-8-[1,4]diazepan-1-yl--
1-(2-ethoxy-ethyl)-3-methyl-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(tetrahydro-furan-2-ylm-
ethyl)-3,7-dihydro-purine-2,6-dione
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-
-1-yl-1-(tetrahydro-furan-2-ylmethyl)-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(tetrahydro-pyran-2-ylm-
ethyl)-3,7-dihydro-purine-2,6-dione
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-
-1-yl-1-(tetrahydro-pyran-2-ylmethyl)-3,7-dihydro-purine-2,6-dione
7-(2-Iodo-benzyl)-3-methyl-1-(2-phenoxy-ethyl)-8-piperazin-1-yl-3,7-dihyd-
ro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1-(2-methoxy-et-
hyl)-3-methyl-3,7-dihydro-purine-2,6-dione
7-(2-Iodo-benzyl)-1-(2-methoxy--
ethyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
1-(2-Benzyloxy-ethyl)-8-[1,4]diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-3,7-
-dihydro-purine-2,6-dione
1-(2-Benzyloxy-ethyl)-7-(2-iodo-benzyl)-3-methyl-
-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
1-(3,5-Dimethoxy-benzyl)-7--
(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
7-(2-Iodo-benzyl)-1-(3-methoxy-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihy-
dro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(3--
trifluoromethoxy-benzyl)-3,7-dihydro-purine-2,6-dione
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-1-(3-trifluoromethoxy-benzyl)-
-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1-(2-hydroxy-propyl)-7--
(2-iodo-benzyl)-3-methyl-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1-(2,2-diethoxy-ethyl)-7-(2-iodo-benzyl)-3-methyl-3,-
7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1-(2,2-dimethoxy-ethyl)-7--
(2-iodo-benzyl)-3-methyl-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1-(2-[1,3]dioxolan-2-yl-ethyl)-7-(2-iodo-benzyl)-3-m-
ethyl-3,7-dihydro-purine-2,6-dione
1-(2-[1,3]Dioxolan-2-yl-ethyl)-7-(2-iod-
o-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
1-[1,3]Dioxolan-2-ylmethyl-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,-
7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1-(2-[1,3]dioxan-2-yl-ethy-
l)-7-(2-iodo-benzyl)-3-methyl-3,7-dihydro-purine-2,6-dione
1-(2-[1,3]Dioxan-2-yl-ethyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl--
3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1-(2,3-dihydroxy-propyl)-
-7-(2-iodo-benzyl)-3-methyl-3,7-dihydro-purine-2,6-dione
1-(2,3-Dihydroxy-propyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7--
dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1-(3-hydroxy-2-methyl-propyl-
)-7-(2-iodo-benzyl)-3-methyl-3,7-dihydro-purine-2,6-dione
1-(3-Hydroxy-2-methyl-propyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-
-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-met-
hyl-1-[3-(tetrahydro-pyran-2-yloxy)-propyl]-3,7-dihydro-purine-2,6-dione
8-[1,4]Diazepan-1-yl-1-(2-fluoro-ethyl)-7-(2-iodo-benzyl)-3-methyl-3,7-di-
hydro-purine-2,6-dione
7-Benzyl-8-[1,4]diazepan-1-yl-1-(3-hydroxy-propyl)--
3-methyl-3,7-dihydro-purine-2,6-dione
7-Biphenyl-2-ylmethyl-8-[1,4]diazepa-
n-1-yl-3-methyl-3,7-dihydro-purine-2,6-dione
Description
FIELD OF INVENTION
[0001] The present invention relates to therapeutically active and
selective inhibitors of the enzyme DPP-IV, pharmaceutical
compositions comprising the compounds and the use of such compounds
for and the manufacture of medicaments for treating diseases that
are associated with proteins which are subject to inactivation by
DPP-IV, such as type 2 diabetes and obesity, as well as methods for
treating diseases that are associated with proteins which are
subject to inactivation by DPP-IV, such as type 2 diabetes and
obesity.
BACKGROUND OF THE INVENTION
[0002] Dipeptidyl peptidase-IV (DPP-IV), a serine protease
belonging to the group of post-proline/alanine cleaving
amino-dipeptidases, specifically removes the two N-terminal amino
acids from proteins having proline or alanine in position 2.
[0003] Although the physiological role of DPP-IV has not been
completely established, it is believed to play an important role in
neuropeptide metabolism, T-cell activation, gastric ulceration,
functional dyspepsia, obesity, appetite regulation, impaired
fasting glucose (IFG) and diabetes.
[0004] DPP-IV has been implicated in the control of glucose
metabolism because its substrates include the insulinotropic
hormones Glucagon like peptide-1 (GLP-1) and Gastric inhibitory
peptide (GIP). GLP-1 and GIP are active only in their intact forms;
removal of their two N-terminal amino acids inactivates them.
[0005] In vivo administration of synthetic inhibitors of DPP-IV
prevents N-terminal degradation of GLP-1 and GIP, resulting in
higher plasma concentrations of these hormones, increased insulin
secretion and, therefore, improved glucose tolerance. Therefore,
such inhibitors have been proposed for the treatment of patients
with Type 2 diabetes, a disease characterised by decreased glucose
tolerance. (Hoist, J. J.; Deacon, C. F. Diabetes 47 (1998)
1663-70)
[0006] Diabetic dyslipidemia is characterized by multiple
lipoprotein defects, including moderately high serum levels of
cholesterol and triglycerides, small LDL particles, and low levels
of HDL cholesterol. The results of recent clinical trials reveal
beneficial effects of cholesterol-lowering therapy in diabetic and
non-diabetic patients, thus supporting increased emphasis on
treatment of diabetic dyslipidemia. The National Cholesterol
Education Program's Adult Treatment Panel II advocated this need
for intensive treatment of diabetic dyslipidemia.
[0007] Obesity is a well-known risk factor for the development of
many very common diseases such as atherosclerosis, hypertension and
diabetes. The incidence of obese people and thereby also these
diseases is increasing throughout the entire industrialised
world.
[0008] Except for exercise, diet and food restriction no convincing
pharmacological treatment for reducing body weight effectively and
acceptably currently exist. However, due to its indirect but
important effect as a risk factor in mortal and common diseases it
will be important to find treatment for obesity or appetite
regulation. Even mild obesity increases the risk for premature
death, diabetes, hypertension, atherosclerosis, gallbladder disease
and certain types of cancer. In the industrialised western world
the prevalence of obesity has increased significantly in the past
few decades. Because of the high prevalence of obesity and its
health consequences, its prevention and treatment should be a high
public health priority.
[0009] At present a variety of techniques are available to effect
initial weight loss. Unfortunately, initial weight loss is not an
optimal therapeutic goal. Rather, the problem is that most obese
patients eventually regain their weight. An effective means to
establish and/or sustain weight loss is the major challenge in the
treatment of obesity today. Several compounds have been shown to
inhibit DPP-IV, but all of these have limitations in relation to
the potency, stability, and pharmacodynamic properties.
[0010] Such compounds have e.g. been disclosed in WO 98/19998, WO
00/34241, U.S. Pat. No. 6,124,305 (Novartis AG) and WO 99/38501
(Trustees of Tufts University). The compounds of the present
invention constitutes a completely novel class of DPP-IV
inhibitors, structurally unrelated to any DPP-IV inhibitors known
so far. They are furthermore potent and stable and thus offers a
solution to the problems associated with the presently known DPP-IV
inhibitors.
SUMMARY OF THE INVENTION
[0011] The present invention provides compounds of formula I 1
[0012] wherein
[0013] each n is one or two independently
[0014] R.sup.1 is C.dbd.O; C.dbd.S; C.sub.1-C.sub.2 alkyl
optionally substituted with one or more R.sup.4 independently;
C.sub.2 alkenyl substituted with one or more R.sup.4 independently;
C.sub.2 alkynyl; C.sub.3-C.sub.7 cycloalkyl optionally substituted
with one or more R.sup.4 independently; C.sub.3-C.sub.7
cycloheteroalkyl optionally substituted with one or more R.sup.4
independently; aryl optionally substituted with one or more R.sup.4
independently; aryl C.sub.1-C.sub.3 alkyl optionally substituted
with one or more R.sup.4 independently; heteroaryl optionally
substituted with one or more R.sup.4 independently; heteroaryl
C.sub.1-C.sub.3 alkyl optionally substituted with one or more
R.sup.4 independently; perhalo C.sub.1-C.sub.10 alkyl; perhalo
C.sub.1-C.sub.10 alkyloxy;
[0015] R.sup.2 is H; C.sub.1-C.sub.7 alkyl optionally substituted
with one or more R.sup.4 independently; C.sub.2-C.sub.7 alkenyl
optionally substituted with one or more R.sup.4 independently;
C.sub.2-C.sub.7 alkynyl optionally substituted with one or more
R.sup.4 independently; C.sub.3-C.sub.7 cycloalkyl optionally
substituted with one or more R.sup.4 independently; C.sub.3-C.sub.7
cycloheteroalkyl optionally substituted with one or more R.sup.4
independently; aryl optionally substituted with one or more R.sup.4
independently; aryl C.sub.1-C.sub.3 alkyl optionally substituted
with one or more R.sup.4 independently; heteroaryl C.sub.1-C.sub.3
alkyl optionally substituted with one or more R.sup.4
independently; heteroaryl optionally substituted with one or more
R.sup.4 independently, --SH; --SR.sup.5; SOR.sup.5;
SO.sub.2R.sup.5; --CHO; --CH(OR.sup.5).sub.2; carboxy;
--CO.sub.2R.sup.4; NHCONNH.sub.2; --NHCSNH.sub.2; --NHCONH.sub.2;
--NHCOR.sup.4; --NHSO.sub.2R.sup.5; --O--CO-(C.sub.1-C.sub.5) alkyl
optionally substituted with one or more R.sup.4 independently;
cyano; nitro; halogen; hydroxy; perhalo C.sub.1-C.sub.7 alkyl;
perhalo C.sub.1-C.sub.7 alkyloxy; --SO.sub.2NH.sub.2;
--SO.sub.2NH(R.sup.5); --SO.sub.2(R.sup.5).sub.2; --CONH.sub.2;
--CSNH.sub.2; --CON.sub.2H.sub.3; --CONH(R.sup.5);
--CON(R.sup.5).sub.2; C.sub.1-C.sub.10 alkyloxy optionally
substituted with R.sup.4 independently; C.sub.2-C.sub.10 alkenyloxy
optionally substituted with R.sup.4; C.sub.2-C.sub.10 alkynyloxy
optionally substituted with R.sup.4 independently, aryloxy
optionally substituted with R.sup.4 independently; heteroaryloxy
optionally substituted with R.sup.4 independently;
[0016] R.sup.3 is H; C.sub.1-C.sub.10 alkyl optionally substituted
with one or more R.sup.4 independently; C.sub.2-C.sub.10 alkenyl
optionally substituted with one or more R.sup.4 independently;
C.sub.2-C.sub.10 alkynyl optionally substituted with one or more
R.sup.4 independently; C.sub.3-C.sub.7 cycloalkyl optionally
substituted with one or more R.sup.4 independently; C.sub.3-C.sub.7
cycloheteroalkyl optionally substituted with one or more R.sup.4
independently; aryl optionally substituted with one or more R.sup.4
independently; aryl C.sub.1-C.sub.3 alkyl optionally substituted
with one or more R.sup.4 independently; heteroaryl C.sub.1-C.sub.3
alkyl optionally substituted with one or more R.sup.4
independently; heteroaryl optionally substituted with one or more
R.sup.4 independently; C.sub.1-C.sub.10
alkyl-NH(CH.sub.2).sub.1-4NH-aryl optionally substituted with one
or more R.sup.4 independently; C.sub.1-C.sub.10
alkyl-NH(CH.sub.2).sub.1-4NH-heteroaryl optionally substituted with
one or more R.sup.4 independently; C.sub.1-C.sub.10
alkyl-O(CH.sub.2).sub.1-4NH-aryl optionally substituted with one or
more R.sup.4 independently, C.sub.1-C.sub.10
alkyl-O(CH.sub.2).sub.1-4NH-heter- oaryl optionally substituted
with one or more R.sup.4 independently; C.sub.1-C.sub.10
alkyl-O(CH.sub.2).sub.1-4O-aryl optionally substituted with one or
more R.sup.4 independently; C.sub.1-C.sub.10
alkyl-O(CH.sub.2).sub.1-4O-heteroaryl optionally substituted with
one or more R.sup.4 independently; C.sub.1-C.sub.10
alkyl-S(CH.sub.2).sub.1-4NH-- aryl optionally substituted with one
or more R.sup.4 independently; C.sub.1-C.sub.10
alkyl-S(CH.sub.2).sub.1-4NH-heteroaryl optionally substituted with
one or more R.sup.4 independently; C.sub.1-C.sub.10
alkyl-S(CH.sub.2).sub.1-4S-heteroaryl optionally substituted with
one or more R.sup.4 independently; C.sub.1-C.sub.10
alkyl-S(CH.sub.2).sub.1-4S-h- eteroaryl optionally substituted with
one or more R.sup.4 independently; C.sub.1-C.sub.10
alkyl-O-C.sub.1-C.sub.5alkyl optionally substituted with one or
more R.sup.4; --NHCOR.sup.4; --NHSO.sub.2R.sup.5;
--O--CO-(C.sub.1-C.sub.5) alkyl optionally substituted with one or
more R.sup.4 independently; --SH; --SR.sup.5; --SOR.sup.5;
--SO.sub.2R.sup.5; --CHO; --CH(OR.sup.5).sub.2; carboxy; cyano;
nitro; halogen; hydroxy; --SO.sub.2NH.sub.2; --SO.sub.2NH(R.sup.5);
--SO.sub.2N(R.sup.5).sub.2; --CONH.sub.2; --CONH(R.sup.5);
--CON(R.sup.5).sub.2; --CSNH.sub.2; --CONHNH.sub.2; --CO2R.sup.4;
--NHCNHNH.sub.2; --NHCSNH.sub.2; --NHCONH.sub.2;
[0017] R.sup.4 is C.sub.1-C.sub.10 alkyl optionally substituted
with one or more R.sup.8 independently; C.sub.2-C.sub.10 alkenyl
optionally substituted with one or more R.sup.8 independently;
C.sub.2-C.sub.10 alkynyl optionally substituted with one or more
R.sup.8 independently; C.sub.3-C.sub.7 cycloalkyl optionally
substituted with one or more R.sup.8 independently; C.sub.3-C.sub.7
cycloheteroalkyl optionally substituted with one or more R.sup.8
independently; aryl optionally substituted with one or more R.sup.8
independently; heteroaryl optionally substituted with one or more
R.sup.8 independently; amino; amino substituted with one or more
C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.8; amino substituted with one or two aryl optionally
substituted with one or more R.sup.8 independently; heteroaryl
optionally substituted with one or more R.sup.8 independently;
.dbd.O; .dbd.S; --CO--R5; --COOR5; --O--CO-(C.sub.1-C.sub.5) alkyl
optionally substituted with one or more R.sup.8 independently;
NH(CH.sub.2).sub.1-4NH-aryl; NH(CH.sub.2).sub.1-4NH-heteroaryl;
--NHCOR.sup.5; --SOR.sup.5; SO.sub.2R.sup.5; carboxy; cyano;
N-hydroxyimino; nitro; halogen; hydroxy; perhalo C.sub.1-C.sub.10
alkyl; perhalo C.sub.1-C.sub.10 alkyloxy; --SH; --SR.sup.5;
--SO.sub.3H; --SO.sub.3R.sup.5; --SO.sub.2R.sup.5;
--SO.sub.2NH.sub.2; --SO.sub.2NH(R.sup.5);
--SO.sub.2N(R.sup.5).sub.2; --CONH.sub.2; --CONH(R.sup.5);
--CON(R.sup.5).sub.2; C.sub.1-C.sub.10 alkyloxy optionally
substituted with one or more R.sup.8 independently;
C.sub.2-C.sub.10 alkenyloxy optionally substituted with one or more
R.sup.8 independently; C.sub.2-C.sub.10 alkynyloxy optionally
substituted with one or more R.sup.8 independently; aryloxy
optionally substituted with one or more R.sup.8 independently;
heteroaryloxy optionally substituted with one or more R.sup.8
independently; and two R.sup.4 attached to the same carbon atom may
form a spiroheterocyclic system, preferably hydantoin;
thiohydantoin; oxazolidine-2,5-dione;
[0018] R.sup.5 is C.sub.1-C.sub.10 alkyl optionally substituted
with one or more R.sup.8 independently; C.sub.2-C.sub.10 alkenyl
optionally substituted with one or more R.sup.8 independently;
C.sub.2-C.sub.10 alkynyl optionally substituted with one or more
R.sup.8 independently; C.sub.3-C.sub.7 cycloalkyl optionally
substituted with one or more R.sup.8 independently; C.sub.3-C.sub.7
cycloheteroalkyl optionally substituted with one or more R.sup.8
independently; aryl optionally substituted with one or more R.sup.8
independently; aryl C.sub.1-C.sub.5 alkyl optionally substituted
with one or more R.sup.8 independently; heteroaryl optionally
substituted with one or more R.sup.8 independently; heteroaryl
C.sub.1-C.sub.5 alkyl optionally substituted with one or more
R.sup.8 independently;
[0019] R.sup.6 is H; C.sub.1-C.sub.10 alkyl optionally substituted
with one or more R.sup.4 independently; C.sub.2-C.sub.10 alkenyl
optionally substituted with one or more R.sup.4 independently;
C.sub.2-C.sub.10 alkynyl optionally substituted with one or more
R.sup.4 independently; C.sub.3-C.sub.7 cycloalkyl optionally
substituted with one or more R.sup.4 independently; C.sub.3-C.sub.7
cycloheteroalkyl optionally substituted with one or more R.sup.4
independently; aryl optionally substituted with one or more R.sup.4
independently; heteroaryl optionally substituted with one or more
R.sup.4 independently;
[0020] R.sup.7 is H; C.sub.1-C.sub.10 alkyl optionally substituted
with one or more R.sup.4 independently; C.sub.2-C.sub.10 alkenyl
optionally substituted with one or more R.sup.4 independently;
C.sub.2-C.sub.10 alkynyl optionally substituted with one or more
R.sup.4 independently; C.sub.3-C.sub.7 cycloalkyl optionally
substituted with one or more R.sup.4 independently; C.sub.3-C.sub.7
cycloheteroalkyl optionally substituted with one or more R.sup.4
independently; aryl optionally substituted with one or more R.sup.4
independently; heteroaryl optionally substituted with one or more
R.sup.4 independently;
[0021] R.sup.8 is H, amidoxime; nitro, tetrazole;
pentafluorophenyl; --CH.sub.2OH; --CHO; --C(OCH.sub.3).sub.2;
--COCH.sub.3; --CF.sub.3; --CCl.sub.3; --OCF.sub.3; --OCH.sub.3;
--CN; --CO.sub.2H; --CO.sub.2CH.sub.3; --CONH.sub.2; --CSNH.sub.2;
--CON.sub.2H.sub.3; --SO.sub.3H; --SO.sub.2NH.sub.2;
--SO.sub.2NHCH.sub.3; --SO.sub.2N(CH.sub.3).sub.2; --SO.sub.2
(1-piperazinyl);--SO.sub.2 (4-methylpiperazin-1-yl); --SO.sub.2
(pyrrolidin-1-yl); --SO.sub.2 (piperidin-1-yl); --SO.sub.2
(morpholin-4-yl); N-hydroxyimino; --NH.sub.2; --NHCH.sub.3;
--N(CH.sub.3).sub.2; --NHCNHNH.sub.2; --NHCNHNHCH.sub.3;
--NHCSNH.sub.2; --NHCSNHCH.sub.3; --NHCONH.sub.2; --NHCONHCH.sub.3;
--NHCOCH.sub.3; --NHSO.sub.2CH.sub.3; piperazinyl; morhpolin-4-yl;
thiomorpholin-4-yl; pyrrolidin-1-yl; piperidin-1-yl; halogen; -OH;
--SH; --SCH.sub.3; -aminoacetyl; --OPO.sub.3H;
--OPO.sub.2OCH.sub.3; --PO.sub.3H.sub.2; --PO(OCH.sub.3).sub.2;
PO(OH)(OCH.sub.3);
[0022] R.sup.9 is H; halogen; C.sub.1-C.sub.10 alkyl optionally
substituted with one or more R.sup.4 independently
[0023] R.sup.10 is H; halogen;
[0024] or, R.sup.9 and R.sup.10 may be connected to form a
cyclopropyl ring;
[0025] or a salt thereof with a pharmaceutically acceptable acid or
base;
[0026] with the exception of the following compounds:
[0027]
1,3-dimethyl-7-(2-oxo-propyl)-8-piperazin-1-yl-3,7-dihydro-purine-2-
,6-dione,
[0028]
1,3,1',3',7'-pentamethyl-8-piperazin-1-yl-3,7,3',7'-tetrahydro-7,8'-
-methanediyl-bis-purine-2,6-dione,
[0029] 3,4,5-trimethoxy-benzoic acid
2-(1,3-dimethyl-2,6-dioxo-8-piperazin-
-1-yl-1,2,3,6-tetrahydro-purin-7-yl)-ethyl ester,
[0030]
7-[2-Hydroxy-3-(4-methoxy-phenoxy)-propyl]-3-methyl-8-piperazin-1-y-
l-3,7-dihydro-purine-2,6-dione,
[0031]
7-[2-hydroxy-2-(4-nitro-phenyl)-ethyl]-3-methyl-8-piperazin-1-yl-3,-
7,8,9-tetrahydro-purine-2,6-dione,
[0032]
7-Benzyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
[0033]
7-(4-Chloro-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,-
6-dione,
[0034]
7-(2-Chloro-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,-
6-dione,
[0035]
7-Ethyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
[0036]
3-Methyl-8-piperazin-1-yl-1,7-dipropyl-3,7-dihydro-purine-2,6-dione-
,
[0037]
3-Methyl-7-(3-methyl-butyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-
-dione,
[0038]
7-Butyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
[0039]
3-Methyl-7-(3-phenyl-propyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,-
6-dione,
[0040]
7-But-2-enyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione-
,
[0041]
7-(3-Chloro-but-2-enyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purin-
e-2,6-dione,
[0042]
7-Heptyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
[0043]
3-Methyl-7-(1-phenyl-ethyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-
-dione,
[0044]
3-Methyl-7-(3-methyl-benzyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,-
6-dione,
[0045]
3-Methyl-7-propyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
and
[0046]
3-Methyl-7-pentyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione.
[0047] Compounds of formula I may be used for the manufacture of a
medicament for treating diseases that are associated with proteins
which are subject to inactivation by DPP-IV.
[0048] In another aspect, the invention relates to the use of
compounds of formula II 2
[0049] wherein
[0050] A.sup.1 is a carbon or nitrogen atom
[0051] The A-ring may be substituted with one or more R.sup.3
[0052] B.sup.1 and B.sup.2are carbon or nitrogen atoms,
independently,
[0053] each B.sup.3 is a carbon, nitrogen, oxygen, or sulfur atom,
independently, each n.sub.1, n.sub.2, n.sub.3, n.sub.4 is one or
two, independently,
[0054] D.sup.3, D.sup.4, and D.sup.5 may be absent, in which case
D.sup.1 and D.sup.2 may each be optionally substituted with one or
two R.sup.2, independently,
[0055] D.sup.1, D.sup.2, D.sup.3, D.sup.4, and each D.sup.5 may
independently be a carbon, nitrogen, oxygen, or a sulfur atom, or
C.dbd.O, or C.dbd.S;
[0056] the bonds in the B-ring may be saturated or unsaturated,
such that the B-ring may be a five-membered or a six-membered
carbocyclic or heterocyclic ring, which may be fully saturated, or
partially or fully unsaturated;
[0057] the bonds in the D-ring, when present, may be saturated or
unsaturated, such that the D-ring may be a five-membered or a
six-membered carbocyclic or heterocyclic ring, which may be fully
saturated, or partially or fully unsaturated;
[0058] R.sup.1 is C.dbd.O; C.dbd.S; C.sub.1-C.sub.2alkyl optionally
substituted with one or more R.sup.4 independently; C.sub.2 alkenyl
substituted with one or more R.sup.4 independently; C.sub.2
alkynyl; C.sub.3-C.sub.7 cycloalkyl optionally substituted with one
or more R.sup.4 independently; C.sub.3-C.sub.7 cycloheteroalkyl
optionally substituted with one or more R.sup.4 independently; aryl
optionally substituted with one or more R.sup.4 independently; aryl
C.sub.1-C.sub.3 alkyl optionally substituted with one or more
R.sup.4 independently; heteroaryl optionally substituted with one
or more R.sup.4 independently; heteroaryl C.sub.1-C.sub.3 alkyl
optionally substituted with one or more R.sup.4 independently;
perhalo C.sub.1-C.sub.10 alkyl; perhalo C.sub.1-C.sub.10
alkyloxy;
[0059] Each R.sup.2 is independently H; C.sub.1-C.sub.7 alkyl
optionally substituted with one or more R.sup.4 independently;
C.sub.2-C.sub.7 alkenyl optionally substituted with one or more
R.sup.4 independently; C.sub.2-C.sub.7 alkynyl optionally
substituted with one or more R.sup.4 independently; C.sub.3-C.sub.7
cycloalkyl optionally substituted with one or more R.sup.4
independently; C.sub.3-C.sub.7 cycloheteroalkyl optionally
substituted with one or more R.sup.4 independently; aryl optionally
substituted with one or more R.sup.4 independently; aryl
C.sub.1-C.sub.3 alkyl optionally substituted with one or more
R.sup.4 independently; heteroaryl C.sub.1-C.sub.3 alkyl optionally
substituted with one or more R.sup.4 independently; heteroaryl
optionally substituted with one or more R.sup.4 independently,
--SH; --SR.sup.5; SOR.sup.5; SO.sub.2R.sup.5; --CHO;
--CH(OR.sup.5).sub.2; carboxy; --CO.sub.2R.sup.4; NHCONNH.sub.2;
--NHCSNH.sub.2; --NHCONH.sub.2; --NHCOR.sup.4; --NHSO.sub.2R.sup.5;
--O--CO--(C.sub.1-C.sub.5) alkyl optionally substituted with one or
more R.sup.4 independently; cyano; nitro; halogen; hydroxy;
--SO.sub.2NH.sub.2; --SO.sub.2NH(R.sup.5);
--SO.sub.2(R.sup.5).sub.2; --CONH.sub.2; --CSNH.sub.2;
--CON.sub.2H.sub.3; --CONH(R.sup.5); --CON(R.sup.5).sub.2;
C.sub.1-C.sub.10 alkyloxy optionally substituted with R.sup.4
independently; C.sub.2-C.sub.10 alkenyloxy optionally substituted
with R.sup.4; C.sub.2-C.sub.10 alkynyloxy optionally substituted
with R.sup.4 independently, aryloxy optionally substituted with
R.sup.4 independently; heteroaryloxy optionally substituted with
R.sup.4 independently;
[0060] R.sup.3 is H; C.sub.1-C.sub.10 alkyl optionally substituted
with one or more R.sup.4 independently; C.sub.2-C.sub.10 alkenyl
optionally substituted with one or more R.sup.4 independently;
C.sub.2-C.sub.10 alkynyl optionally substituted with one or more
R.sup.4 independently; C.sub.3-C.sub.7 cycloalkyl optionally
substituted with one or more R.sup.4 independently; C.sub.2-C.sub.6
cycloheteroalkyl optionally substituted with one or more R.sup.4
independently; aryl optionally substituted with one or more R.sup.4
independently; aryl C.sub.1-C.sub.3 alkyl optionally substituted
with one or more R.sup.4 independently; heteroaryl C.sub.1-C.sub.3
alkyl optionally substituted with one or more R.sup.4
independently; heteroaryl optionally substituted with one or more
R.sup.4 independently;
C.sub.1-C.sub.10alkyl-NH(CH.sub.2).sub.1-4NH-aryl optionally
substituted with one or more R.sup.4 independently;
C.sub.1-C.sub.10alkyl-NH(CH.sub.2).sub.1-4NH-heteroaryl optionally
substituted with one or more R.sup.4 independently;
C.sub.1-C.sub.10alkyl-O(CH.sub.2).sub.1-4NH-aryl optionally
substituted with one or more R.sup.4 independently;
C.sub.1-C.sub.10alkyl-O(CH.sub.2)- .sub.1-4NH-heteroaryl optionally
substituted with one or more R.sup.4 independently;
C.sub.1-C.sub.10alkyl-O(CH.sub.2).sub.1-4O-aryl optionally
substituted with one or more R.sup.4 independently;
C.sub.1-C.sub.10alkyl-O(CH.sub.2).sub.1-4O-heteroaryl optionally
substituted with one or more R.sup.4 independently;
C.sub.1-C.sub.10alkyl-S(CH.sub.2).sub.1-4NH-aryl optionally
substituted with one or more R.sup.4 independently;
C.sub.1-C.sub.10alkyl-S(CH.sub.2)- .sub.1-4NH-heteroaryl optionally
substituted with one or more R.sup.4 independently;
C.sub.1-C.sub.10alkyl-S(CH.sub.2).sub.1-4S-aryl optionally
substituted with one or more R.sup.4 independently;
C.sub.1-C.sub.10alkyl-S(CH.sub.2).sub.1-4-S-heteroaryl optionally
substituted with one or more R.sup.4 independently;
C.sub.1-C.sub.10alkyl-O-C.sub.1-C.sub.5alkyl optionally substituted
with one or more R.sup.4; --NHCOR.sup.4; --NHSO.sub.2R5;
--O--CO-(C.sub.1-C.sub.5) alkyl optionally substituted with one or
more R.sup.4 independently; --SH; --SR.sup.5; --SOR.sup.5;
--SO.sub.2R.sup.5; --CHO; --CH(OR.sup.5).sub.2; carboxy; cyano;
nitro; halogen; hydroxy; --SO.sub.2NH.sub.2; --SO.sub.2NH(R.sup.5);
--SO.sub.2N(R.sup.5).sub.2; --CONH.sub.2; --CONH(R.sup.5);
--CON(R.sup.5).sub.2; --CSNH.sub.2; --CONHNH.sub.2; --CO2R.sup.4;
--NHCNHNH.sub.2; --NHCSNH.sub.2; --NHCONH.sub.2; --NHCOR.sup.4;
--NHSO.sub.2R.sup.5;
[0061] R.sup.4 is C.sub.1-C.sub.10 alkyl optionally substituted
with one or more R.sup.8 independently; C.sub.2-C.sub.10 alkenyl
optionally substituted with one or more R.sup.8 independently;
C.sub.2-C.sub.10 alkynyl optionally substituted with one or more
R.sup.8 independently; C.sub.3-C.sub.7 cycloalkyl optionally
substituted with one or more R.sup.8 independently; C.sub.2-C.sub.6
cycloheteroalkyl optionally substituted with one or more R.sup.8
independently; aryl optionally substituted with one or more R.sup.8
independently; heteroaryl optionally substituted with one or more
R.sup.8 independently; amino; amino substituted with one or more
C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.8; amino substituted with one or two aryl optionally
substituted with one or more R.sup.8 independently; heteroaryl
optionally substituted with one or more R.sup.8 independently;
.dbd.O; .dbd.S; --CO--R5; --COOR5; --O--CO-(C.sub.1-C.sub.5) alkyl
optionally substituted with one or more R.sup.8 independently;
NH(CH.sub.2).sub.1-4NH-aryl; NH(CH.sub.2).sub.1-4NH-heteroaryl;
--NHCOR.sup.5; --SOR.sup.5; SO.sub.2R.sup.5; carboxy; cyano;
N-hydroxyimino; nitro; halogen; hydroxy; perhaloalkyl;
perhaloalkyloxy; --SH; --SR.sup.5; --SO.sub.3H; --SO.sub.3R.sup.5;
--SO.sub.2R.sup.5; --SO.sub.2NH.sub.2; --SO.sub.2NH(R.sup.5);
--SO.sub.2N(R.sup.5).sub.2; --CONH.sub.2; --CONH(R.sup.5);
--CON(R.sup.5).sub.2; C.sub.1-C.sub.10 alkyloxy optionally
substituted with one or more R.sup.8 independently;
C.sub.2-C.sub.10 alkenyloxy optionally substituted with one or more
R.sup.8 independently; C.sub.2-C.sub.10 alkynyloxy optionally
substituted with one or more R.sup.8 independently; aryloxy
optionally substituted with one or more R.sup.8 independently;
heteroaryloxy optionally substituted with one or more R.sup.8
independently; two R.sup.4 attached to the same carbon may form a
spiroheterocyclic system such as hydantoin; thiohydantoin;
oxazolidine-2,5-dione;
[0062] R.sup.5 is C.sub.1-C.sub.10 alkyl optionally substituted
with one or more R.sup.8 independently; C.sub.2-C.sub.10 alkenyl
optionally substituted with one or more R.sup.8 independently;
C.sub.2-C.sub.10 alkynyl optionally substituted with one or more
R.sup.8 independently; C.sub.3-C.sub.7 cycloalkyl optionally
substituted with one or more R.sup.8 independently; C.sub.3-C.sub.7
cycloheteroalkyl optionally substituted with one or more R.sup.8
independently; aryl optionally substituted with one or more R.sup.8
independently; aryl C.sub.1-C.sub.5 alkyl optionally substituted
with one or more R.sup.8 independently; heteroaryl optionally
substituted with one or more R.sup.8 independently; heteroaryl
C.sub.1-C.sub.5 alkyl optionally substituted with one or more
R.sup.8 independently;
[0063] R.sup.8 is H, amidoxime; nitro, tetrazole;
pentafluorophenyl; --CH2OH; --CHO; --C(OCH.sub.3).sub.2;
--COCH.sub.3; --CF.sub.3; --CCl.sub.3; --OCF.sub.3; --OCH.sub.3;
--CN; --CO.sub.2H; --CO.sub.2CH.sub.3; --CONH.sub.2; --CSNH.sub.2;
--CON.sub.2H.sub.3; --SO.sub.3H; --SO.sub.2NH.sub.2;
--SO.sub.2NHCH.sub.3; --SO.sub.2N(CH.sub.3).sub.2; --SO.sub.2
(1-piperazinyl);--SO.sub.2 (-4-methylpiperazin-1-yl); --SO.sub.2
(pyrrolidin-1-yl); --SO.sub.2 (piperidin-1-yl); --SO.sub.2
(morpholin-4-yl); N-hydroxyimino; --NH.sub.2; --NHCH.sub.3;
--N(CH.sub.3).sub.2; --NHCNHNH.sub.2; --NHCNHNHCH.sub.3;
--NHCSNH.sub.2; --NHCSNHCH.sub.3; --NHCONH.sub.2; --NHCONHCH.sub.3;
--NHCOCH.sub.3; --NHSO.sub.2CH.sub.3; piperazinyl; morhpolin-4-yl;
thiomorpholin-4-yl); pyrrolidin-1-yl; piperidin-1-yl; halogen;
--OH; --SH; --SCH.sub.3; -aminoacetyl; --OPO.sub.3H;
--OPO.sub.2OCH.sub.3; --PO.sub.3H.sub.2; --PO(OCH.sub.3).sub.2;
PO(OH) (OCH.sub.3);
[0064] R.sup.9 is H; halogen; C.sub.1-C.sub.10 alkyl optionally
substituted with one or more R.sup.4 independently
[0065] R.sup.10 is H; halogen;
[0066] R9 and R10 may be connected to form a cyclopropyl ring
[0067] or a salt thereof with a pharmaceutically acceptable acid or
base;
[0068] for the manufacture of a medicament for treating diseases
that are associated with proteins which are subject to inactivation
by DPP-IV.
DETAILED DESCRIPTION OF THE INVENTION
[0069] Definitions
[0070] The term "DPP-IV" as used herein is intended to mean
Dipeptidyl peptidase IV (EC 3.4.14.5; DPP-IV), also known as CD26.
DPP-IV cleaves a dipeptide from the N terminus of a polypeptide
chain containing a proline or alanine residue in the penultimate
position.
[0071] The term "treatment" is defined as the management and care
of a patient for the purpose of combating the disease, condition,
or disorder and includes the administration of a compound of the
present invention to prevent the onset of the symptoms or
complications, or alleviating the symptoms or complications, or
eliminating the disease, condition, or disorder.
[0072] The term "beta cell degeneration" is intended to mean loss
of beta cell function, beta cell dysfunction, and death of beta
cells, such as necrosis or apoptosis of beta cells.
[0073] The term "C.sub.1-C.sub.10 alkyl" as used herein, alone or
in combination, refers to a straight or branched, saturated
hydrocarbon chain having from 1-10 carbon atoms such as but not
limited to e.g. methyl, ethyl, n-propyl, isopropyl, n-butyl, sec.
Butyl, isobutyl, tert. Butyl, n-pentyl, 2-methylbutyl,
3-methylbutyl, n-hexyl, 4-methylpentyl, neopentyl,
2,2-dimethylpropyl and the like.
[0074] The term "C.sub.2-C.sub.10-alkenyl" used herein, alone or in
combination, refers to a straight or branched, unsaturated
hydrocarbon chain having from 2-10 carbon atoms and at least one
double bond such as but not limited to vinyl, 1-propenyl, allyl,
isopropenyl, n-butenyl, n-pentenyl and n-hexenyl and the like.
[0075] The term "C.sub.2-C.sub.10 alkynyl" as used herein, alone or
in combination, refers to an unsaturated hydrocarbon chain having
from 2-10 carbon atoms and at least one triple bond such as but not
limited to --C.ident.CH, --C.ident.CCH.sub.3, --CH.sub.2C.ident.CH,
--CH.sub.2--CH.sub.2--C.ident.CH, --CH(CH.sub.3) C.ident.CH and the
like.
[0076] The term "C.sub.1-10-alkoxy" as used herein, alone or in
combination is intended to include those C.sub.1-10-alkyl groups of
the designated length in either a linear or branched or cyclic
configuration linked through an ether oxygen having its free
valence bond from the ether oxygen. Examples of linear alkoxy
groups are methoxy, ethoxy, propoxy, butoxy, pentoxy and hexoxy.
Examples of branched alkoxy are isopropoxy, sec-butoxy,
tert-butoxy, isopentoxy and isohexoxy. Example of cyclic alkoxy are
cyclopropyloxy, cyclobutyloxy, cyclopentyloxy and
cyclohexyloxy.
[0077] The term "C.sub.3-C.sub.10 cycloalkyl" as used herein refers
to a radical of one or more saturated cyclic hydrocarbon having
from 3-10 carbon atoms such as but not limited to cyclopropyl,
cyclobutyl, cyclopentyl, cyclohexyl, adamantyl and the like.
[0078] The term "C.sub.5-C.sub.10 cycloalkenyl" as used herein
refers to a radical of one or more cyclic hydrocarbon having at
least one double bond having from 5-10 carbon atoms such as but not
limited to cyclopentenyl, cyclohexenyl and the like
[0079] The term "C.sub.2-C.sub.6 cycloheteroalkyl" as used herein
refers to a radical of totally saturated heterocycle like a cyclic
hydrocarbon containing one or more heteroatoms selected from
nitrogen, oxygen and sulphur independently in the cycle such as
pyrrolidine (1-pyrrolidine; 2-pyrrolidine; 3-pyrrolidine;
4-pyrrolidine; 5-pyrrolidine); pyrazolidine (1-pyrazolidine;
2-pyrazolidine; 3-pyrazolidine; 4-pyrazolidine; 5-pyrazolidine);
imidazolidine (1-imidazolidine; 2-imidazolidine; 3-imidazolidine;
4-imidazolidine; 5-imidazolidine); thiazolidine (2-thiazolidine;
3-thiazolidine; 4-thiazolidine; 5-thiazolidine); piperidine
(1-piperidine; 2-piperidine; 3-piperidine; 4-piperidine;
5-piperidine; 6-piperidine); piperazine (1-piperazine;
2-piperazine; 3-piperazine; 4-piperazine; 5-piperazine;
6-piperazine); morpholine (2-morpholine; 3-morpholine;
4-morpholine; 5-morpholine; 6-morpholine); thiomorpholine
(2-thiomorpholine; 3-thiomorpholine; 4-thiomorpholine;
5-thiomorpholine; 6-thiomorpholine); 1,2-oxathiolane
(3-(1,2-oxathiolane); 4-(1,2-oxathiolane); 5-(1,2-oxathiolane);
1,3-dioxolane (2-(1,3-dioxolane); 4-(1,3-dioxolane);
5-(1,3-dioxolane); tetrahydropyrane; (2-tetrahydropyrane;
3-tetrahydropyrane; 4-tetrahydropyrane; 5-tetrahydropyrane;
6-tetrahydropyrane); hexahydropyridazine (1-(hexahydropyridazine);
2-(hexahydropyridazine); 3-(hexahydropyridazine);
4-(hexahydropyridazine); 5-(hexahydropyridazine)- ;
6-(hexahydropyridazine)).
[0080] The term "aryl" as used herein includes carbocyclic aromatic
ring systems. Aryl is also intended to include the partially
hydrogenated derivatives of the carbocyclic systems.
[0081] The term "heteroaryl" as used herein includes heterocyclic
unsaturated ring systems containing one or more heteroatoms
selected from nitrogen, oxygen and sulphur such as furyl, thienyl,
pyrrolyl, heteroaryl is also intended to include the partially
hydrogenated derivatives of the heterocyclic systems enumerated
below.
[0082] The terms "aryl" and "heteroaryl" as used herein refers to
an aryl which can be optionally substituted or a heteroaryl which
can be optionally substituted and includes phenyl, biphenyl,
indenyl, naphthyl (1-naphthyl, 2-naphthyl), N-hydroxytetrazolyl,
N-hydroxytriazolyl, N-hydroxyimidazolyl, anthracenyl
(1-anthracenyl, 2-anthracenyl, 3-anthracenyl), thiophenyl
(2-thienyl, 3-thienyl), furyl (2-furyl, 3-furyl), indolyl,
oxadiazolyl, isoxazolyl, quinazolinyl, fluorenyl, xanthenyl,
isoindanyl, benzhydryl, acridinyl, thiazolyl, pyrrolyl
(2-pyrrolyl), pyrazolyl (3-pyrazolyl), imidazolyl (1-imidazolyl,
2-imidazolyl, 4-imidazolyl, 5-imidazolyl), triazolyl
(1,2,3-triazol-1-yl, 1,2,3-triazol-2-yl 1,2,3-triazol-4-yl,
1,2,4-triazol-3-yl), oxazolyl (2-oxazolyl, 4-oxazolyl, 5-oxazolyl),
thiazolyl (2-thiazolyl, 4-thiazolyl, 5-thiazolyl), pyridyl
(2-pyridyl, 3-pyridyl, 4-pyridyl), pyrimidinyl (2-pyrimidinyl,
4-pyrimidinyl, 5-pyrimidinyl, 6-pyrimidinyl), pyrazinyl,
pyridazinyl (3-pyridazinyl, 4-pyridazinyl, 5-pyridazinyl), quinolyl
(2-quinolyl, 3-quinolyl, 4-quinolyl, 5-quinolyl, 6-quinolyl,
7-quinolyl, 8-quinolyl), isoquinolyl (1-isoquinolyl, 3-isoquinolyl,
4-isoquinolyl, 5-isoquinolyl, 6-isoquinolyl, 7-isoquinolyl,
8-isoquinolyl), benzo[b]furanyl (2-benzo[b]furanyl,
3-benzo[b]furanyl, 4-benzo[b]furanyl, 5-benzo[b]furanyl,
6-benzo[b]furanyl, 7-benzo[b]furanyl), 2,3-dihydro-benzo[b]furanyl
(2-(2,3-dihydro-benzo[b]f- uranyl),
3-(2,3-dihydro-benzo[b]furanyl), 4-(2,3-dihydro-benzo[b]furanyl),
5-(2,3-dihydro-benzo[b]furanyl), 6-(2,3-dihydro-benzo[b]furanyl),
7-(2,3-dihydro-benzo[b]furanyl), benzo[b]thiophenyl
(2-benzo[b]thiophenyl, 3-benzo[b]thiophenyl, 4-benzo[b]thiophenyl,
5-benzo[b]thiophenyl, 6-benzo[b]thiophenyl, 7-benzo[b]thiophenyl),
2,3-dihydro-benzo[b]thiophenyl (2-(2,3-dihydro-benzo[b]thiophenyl),
3-(2,3-dihydro-benzo[b]thiophenyl),
4-(2,3-dihydro-benzo[b]thiophenyl),
5-(2,3-dihydro-benzo[b]thiophenyl),
6-(2,3-dihydro-benzo[b]thiophenyl),
7-(2,3-dihydro-benzo[b]thiophenyl), indolyl (1-indolyl, 2-indolyl,
3-indolyl, 4-indolyl, 5-indolyl, 6-indolyl, 7-indolyl), indazole
(1-indazolyl, 3-indazolyl, 4-indazolyl, 5-indazolyl, 6-indazolyl,
7-indazolyl), benzimidazolyl (1-benzimidazolyl, 2-benzimidazolyl,
4-benzimidazolyl, 5-benzimidazolyl, 6-benzimidazolyl,
7-benzimidazolyl, 8-benzimidazolyl), benzoxazolyl (1-benzoxazolyl,
2-benzoxazolyl), benzothiazolyl (1-benzothiazolyl,
2-benzothiazolyl, 4-benzothiazolyl, 5-benzothiazolyl,
6-benzothiazolyl, 7-benzothiazolyl), carbazolyl (1-carbazolyl,
2-carbazolyl, 3-carbazolyl, 4-carbazolyl), 5H-dibenz[b,f]azepine
(5H-dibenz[b,f]azepin-1-yl, 5H-dibenz[b,f]azepine-2- -yl,
5H-dibenz[b,f]azepine-3-yl, 5H-dibenz[b,f]azepine-4-yl,
5H-dibenz[b,f]azepine-5-yl), 10,11-dihydro-5H-dibenz[b,f]azepine
(10,11-dihydro-5H-dibenz[b,f]azepine-1-yl,
10,11-dihydro-5H-dibenz[b,f]az- epine-2-yl,
10,11-dihydro-5H-dibenz[b,f]azepine-3-yl,
10,11-dihydro-5H-dibenz[b,f]azepine-4-yl,
10,11-dihydro-5H-dibenz[b,f]aze- pine-5-yl).
[0083] The term halogen as used herein refers to fluorine,
chlorine, bromine or iodine.
[0084] In the compounds of formula I, R.sup.2 is preferably H;
C.sub.2-C.sub.7 alkenyl optionally substituted with one or more
R.sup.4 independently; C.sub.2-C.sub.7 alkynyl optionally
substituted with one or more R.sup.4 independently; C.sub.3-C.sub.7
cycloalkyl optionally substituted with one or more R.sup.4
independently; C.sub.3-C.sub.7 cycloheteroalkyl optionally
substituted with one or more R.sup.4 independently; aryl optionally
substituted with one or more R.sup.4 independently; aryl
C.sub.1-C.sub.3 alkyl optionally substituted with one or more
R.sup.4 independently; heteroaryl C.sub.1-C.sub.3 alkyl optionally
substituted with one or more R.sup.4 independently; heteroaryl
optionally substituted with one or more R.sup.4 independently,
--SH; --SR.sup.5; SOR.sup.5; SO.sub.2R.sup.5; --CHO;
--CH(OR.sup.5).sub.2; carboxy; --CO.sub.2R.sup.4; NHCONNH.sub.2;
--NHCSNH.sub.2; --NHCONH.sub.2; --NHCOR.sup.4;
--NHSO.sub.2R.sup.5;--NHCOR.sup.4; --NHSO.sub.2R.sup.5;
--O--CO-(C.sub.1-C.sub.5) alkyl optionally substituted with one or
more R.sup.4 independently; cyano; nitro; halogen; hydroxy; perhalo
C.sub.1-C.sub.7 alkyl; perhalo C.sub.1-C.sub.7 alkyloxy;
--SO.sub.2NH.sub.2; --SO.sub.2NH(R.sup.5);
--SO.sub.2(R.sup.5).sub.2; --CONH.sub.2; --CSNH.sub.2;
--CON.sub.2H.sub.3; --CONH(R.sup.5); --CON(R.sup.5).sub.2;
C.sub.1-C.sub.10 alkyloxy optionally substituted with R.sup.4
independently; C.sub.2-C.sub.10 alkenyloxy optionally substituted
with R.sup.4; C.sub.2-C.sub.10 alkynyloxy optionally substituted
with R.sup.4 independently, aryloxy optionally substituted with
R.sup.4 independently; heteroaryloxy optionally substituted with
R.sup.4 independently.
[0085] More specifically, in the compounds of formula I, R.sup.2
may be H; C.sub.3-C.sub.7 cycloalkyl optionally substituted with
one or more R.sup.4 independently; C.sub.3-C.sub.7 cycloheteroalkyl
optionally substituted with one or more R.sup.4 independently; aryl
optionally substituted with one or more R.sup.4 independently; aryl
C.sub.1-C.sub.3 alkyl optionally substituted with one or more
R.sup.4 independently; heteroaryl C.sub.1-C.sub.3 alkyl optionally
substituted with one or more R.sup.4 independently; heteroaryl
optionally substituted with one or more R.sup.4 independently,
--SH; --SR.sup.5; SOR.sup.5; SO.sub.2R.sup.5; --CHO;
--CH(OR.sup.5).sub.2; carboxy; --CO.sub.2R.sup.4; NHCONNH.sub.2;
--NHCSNH.sub.2; --NHCONH.sub.2; --NHCOR.sup.4; --NHSO.sub.2R.sup.5;
--O--CO-(C.sub.1-C.sub.5) alkyl optionally substituted with one or
more R.sup.4 independently; cyano; nitro; halogen; hydroxy; perhalo
C.sub.1-C.sub.7 alkyl; perhalo C.sub.1-C.sub.7 alkyloxy;
--SO.sub.2NH.sub.2; --SO.sub.2NH(R.sup.5);
--SO.sub.2(R.sup.5).sub.2; --CONH.sub.2; --CSNH.sub.2;
--CON.sub.2H.sub.3; --CONH(R.sup.5); --CON(R.sup.5).sub.2;
C.sub.1-C.sub.10 alkyloxy optionally substituted with R.sup.4
independently; C.sub.2-C.sub.10 alkenyloxy optionally substituted
with R.sup.4; C.sub.2-C.sub.10 alkynyloxy optionally substituted
with R.sup.4 independently, aryloxy optionally substituted with
R.sup.4 independently; heteroaryloxy optionally substituted with
R.sup.4 independently.
[0086] Alternatively, in the compounds of formula I, R.sup.2 may be
H. In this embodiment, R.sup.1 may preferably be C.dbd.O; C.dbd.S;
C.sub.1-C.sub.2 alkyl substituted with one or more R.sup.4
independently; C.sub.2 alkenyl substituted with one or more R.sup.4
independently; C.sub.2 alkynyl; C.sub.3-C.sub.7 cycloalkyl
optionally substituted with one or more R.sup.4 independently;
C.sub.3-C.sub.7 cycloheteroalkyl optionally substituted with one or
more R.sup.4 independently; aryl substituted with one or more
R.sup.4 independently; aryl C.sub.1-C.sub.3 alkyl substituted with
one or more R.sup.4 independently; heteroaryl substituted with one
or more R.sup.4 independently; heteroaryl C.sub.1-C.sub.3 alkyl
substituted with one or more R.sup.4 independently.
[0087] In the compounds of formula I, R.sup.9 is preferably H, and
R.sup.10 is preferably H.
[0088] In the compounds of formula I, R.sup.6 and R.sup.7 may
independently be H; C.sub.1-C.sub.10 alkyl optionally substituted
with one or more R.sup.4 independently; C.sub.2-C.sub.10 alkenyl
optionally substituted with one or more R.sup.4 independently;
C.sub.2-C.sub.10 alkynyl optionally substituted with one or more
R.sup.4 independently; C.sub.3-C.sub.7 cycloalkyl optionally
substituted with one or more R.sup.4 independently; C.sub.3-C.sub.7
cycloheteroalkyl optionally substituted with one or more R.sup.4
independently; heteroaryl optionally substituted with one or more
R.sup.4 independently. In particular, R.sup.6 and R.sup.7 may
independently be H; C.sub.1-C.sub.10 alkyl optionally substituted
with one or more R.sup.4 independently. More particularly, R.sup.6
and R.sup.7 may independently be H; C.sub.1-C.sub.10 alkyl.
[0089] When R.sup.10 is H, R.sup.6 and R.sup.7 may independently be
H; C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.4 independently; C.sub.2-C.sub.10 alkenyl optionally
substituted with one or more R.sup.4 independently;
C.sub.2-C.sub.10 alkynyl optionally substituted with one or more
R.sup.4 independently; C.sub.3-C.sub.7 cycloalkyl optionally
substituted with one or more R.sup.4 independently.
[0090] In the compounds of formula I, R.sup.4 may be piperidino
optionally substituted with one or more R.sup.8 independently;
piperazino optionally substituted with one or more R.sup.8
independently; morpholino optionally substituted with one or more
R.sup.8 independently; thiomorpholino optionally substituted with
one or more R.sup.8 independently; pyrrolidino optionally
substituted with one or more R.sup.8 independently. In this
embodiment, R.sup.6 and R.sup.7 may independently be H;
C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.4 independently; C.sub.2-C.sub.10 alkenyl optionally
substituted with one or more R.sup.4 independently;
C.sub.2-C.sub.10 alkynyl optionally substituted with one or more
R.sup.4 independently.
[0091] Preferred Compounds
[0092]
7-Benzyl-8-(6-hydroxymethyl-[1,4]diazepan-1-yl)-1,3-dimethyl-3,7-di-
hydropurine-2,6-dione.
[0093]
7-Benzyl-8-(6-hydroxy-[1,4]diazepan-1-yl)-1,3-dimethyl-3,7-dihydrop-
urine-2,6-dione
[0094] 7-Benzyl-8-(3-hydroxymethyl-[1,4]diazepan-
1-yl)-1,3-dimethyl-3,7-d- ihydropurine-2,6-dione
[0095]
7-Benzyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-dione
[0096]
1,3-Dimethyl-7-(4-methylbenzyl)-8-piperazin-1-yl-3,7-dihydropurine--
2,6-dione
[0097]
3-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin--
7-ylmethyl) benzonitrile
[0098]
2-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin--
7-ylmethyl) benzonitrile
[0099]
1,3-Dimethyl-7-(1-phenylethyl)-8-piperazin-1-yl-3,7-dihydropurine-2-
,6-dione
[0100]
7-(2-Iodobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,-
6-dione
[0101]
1,3-Dimethyl-8-piperazin-1-yl-7-(2-trifluoromethylbenzyl)-3,7-dihyd-
ropurine-2,6-dione
[0102]
1,3-Dimethyl-7-naphthalen-1-ylmethyl-8-piperazin-1-yl-3,7-dihydropu-
rine-2,6-dione
[0103]
1,3-Dimethyl-7-naphthalen-2-ylmethyl-8-piperazin-1-yl-3,7-dihydropu-
rine-2,6-dione
[0104]
7-(3-Bromobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2-
,6-dione
[0105]
7-Benzyl-8-(3-isopropylpiperazin-1-yl)-1,3-dimethyl-3,7-dihydropuri-
ne-2,6-dione
[0106]
7-Benzyl-8-[1,4]diazepan-1-yl-1,3-dimethyl-3,7-dihydro-purine-2,6-d-
ione
[0107]
1,3-Dimethyl-7-(2-oxo-2-pyrrolidin-1-yl-ethyl)-8-piperazin-1-yl-3,7-
-dihydro-purine-2,6-dione
[0108]
2-(8-[1,4]Diazepan-1-yl-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-p-
urin-7-ylmethyl)-benzonitrile
[0109]
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1,3-dimethyl-3,7-dihydro-pur-
ine-2,6-dione
[0110]
7-(2-Difluoromethoxy-benzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihy-
dro-purine-2,6-dione
[0111]
7-(2,3-Dimethoxy-benzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydro--
purine-2,6-dione
[0112]
1,3-Dimethyl-8-piperazin-1-yl-7-(2-trifluoromethoxy-benzyl)-3,7-dih-
ydro-purine-2,6-dione
[0113]
1,3-Dimethyl-8-piperazin-1-yl-7-(2-trifluoromethylsulfanyl-benzyl)--
3,7-dihydro-purine-2,6-dione
[0114]
4-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydro-purin-
-7-yl)-butyronitrile
[0115]
R)-7-Benzyl-8-(3-isopropylpiperazin-1-yl)-1,3-dimethyl-3,7-dihydrop-
urine-2,6-dione
[0116]
S)-7-Benzyl-8-(3-isopropylpiperazin-1-yl)-1,3-dimethyl-3,7-dihydrop-
urine-2,6-dione
[0117]
7-Benzyl-8-(6,9-diazaspiro[4.5]dec-9-yl)-1,3-dimethyl-3,7-dihydropu-
rine-2,6-dione
[0118]
7-Benzyl-8-(piperazin-3-spiro-3'-bicyclo[2,2,1]heptane-1-yl)-1,3-di-
methyl-3,7-dihydropurine-2,6-dione
[0119]
8-[1,4]Diazepan-1-yl-7-(2-methoxy-benzyl)-1,3-dimethyl-3,7-dihydro--
purine-2,6-dione
[0120]
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-naphthalen-1-ylmethyl-3,7-dihyd-
ro-purine-2,6-dione
[0121]
8-[1,4]Diazepan-1-yl-7-(2-fluoro-benzyl)-1,3-dimethyl-3,7-dihydro-p-
urine-2,6-dione
[0122]
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-methyl-benzyl)-3,7-dihydro-p-
urine-2,6-dione
[0123]
7-(2-Chloro-benzyl)-8-[1,4]diazepan-1-yl-1,3-dimethyl-3,7-dihydro-p-
urine-2,6-dione
[0124]
7-(2-Bromo-benzyl)-8-[1,4]diazepan-1-yl-1,3-dimethyl-3,7-dihydro-pu-
rine-2,6-dione
[0125]
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-trifluoromethyl-benzyl)-3,7--
dihydro-purine-2,6-dione
[0126]
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-nitro-benzyl)-3,7-dihydro-pu-
rine-2,6-dione
[0127]
3-Benzyl-8-piperazin-1-yl-7-(2-trifluoromethyl-benzyl)-3,7-dihydro--
purine-2,6-dione
[0128]
3,7-Dibenzyl-1-(2-hydroxy-ethyl)-8-piperazin-1-yl-3,7-dihydro-purin-
e-2,6-dione
[0129]
3-Benzyl-7-phenethyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
[0130]
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-3,7-dihydro-purine-2,6-dione
[0131]
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-purine-2,6-dione
[0132]
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-1-propyl-3,7-dihydro-purine-2,6-d-
ione
[0133]
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-1-(2-hydroxy-ethyl)-3,7-dihydro-p-
urine-2,6-dione
[0134]
2-(3,7-Dibenzyl-8-[1,4]diazepan-1-yl-2,6-dioxo-2,3,6,7-tetrahydro-p-
urin-1-yl)-N,N-diethyl-acetamide
[0135]
1,3,7-Tribenzyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
[0136]
1,3,7-Tribenzyl-8-[1,4]diazepan-1-yl-3,7-dihydro-purine-2,6-dione
[0137]
(S)-7-Benzyl-8-(3-benzyloxymethylpiperazin-1-yl)-1,3-dimethyl-3,7-d-
ihydropurine-2,6-dione
[0138]
3,7-Dibenzyl-8-piperazin-1-yl-1-propyl-3,7-dihydro-purine-2,6-dione
[0139]
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-1-propyl-3,7-dihydro-purine-2,6-d-
ione
[0140]
3,7-Dibenzyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
[0141]
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-3,7-dihydro-purine-2,6-dione
[0142]
2-(3-Benzyl-2,6-dioxo-8-piperazin-1-yl-1-propyl-1,2,3,6-tetrahydro--
purin-7-ylmethyl)-benzonitrile
[0143]
2-(3-Benzyl-8-[1,4]diazepan-1-yl-2,6-dioxo-1-propyl-1,2,3,6-tetrahy-
dro-purin-7-ylmethyl)-benzonitrile
[0144]
2-(3-Benzyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydro-purin-7-y-
lmethyl)-benzonitrile
[0145]
2-(3-Benzyl-8-[1,4]diazepan-1-yl-2,6-dioxo-1,2,3,6-tetrahydro-purin-
-7-ylmethyl)-benzonitrile
[0146]
3-Benzyl-7-(2-iodo-benzyl)-8-piperazin-1-yl-1-propyl-3,7-dihydro-pu-
rine-2,6-dione
[0147]
3-Benzyl-8-[1,4]diazepan-1-yl-7-(2-iodo-benzyl)-1-propyl-3,7-dihydr-
o-purine-2,6-dione
[0148]
3-Benzyl-7-(2-iodo-benzyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6--
dione
[0149]
3-Benzyl-8-[1,4]diazepan-1-yl-7-(2-iodo-benzyl)-3,7-dihydro-purine--
2,6-dione
[0150]
7-Benzyl-3-methyl-8-piperazin-1-yl-1-propyl-3,7-dihydro-purine-2,6--
dione
[0151]
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-propyl-3,7-dihydro-purine--
2,6-dione
[0152]
7-Benzyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione
[0153]
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-purine-2,6-dione
[0154]
2-(3-Methyl-2,6-dioxo-8-piperazin-1-yl-1-propyl-1,2,3,6-tetrahydro--
purin-7-ylmethyl)-benzonitrile
[0155]
2-(8-[1,4]Diazepan-1-yl-3-methyl-2,6-dioxo-1-propyl-1,2,3,6-tetrahy-
dro-purin-7-ylmethyl)-benzonitrile
[0156]
2-(8-[1,4]Diazepan-1-yl-3-methyl-2,6-dioxo-1,2,3,6-tetrahydro-purin-
-7-ylmethyl)-benzonitrile
[0157]
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-1-propyl-3,7-dihydro-pu-
rine-2,6-dione
[0158]
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-propyl-3,7-dihydr-
o-purine-2,6-dione
[0159]
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6--
dione
[0160]
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-3,7-dihydro-purine--
2,6-dione
[0161]
3-Benzyl-8-[1,4]diazepan-1-yl-1-(3-hydroxy-propyl)-7-(2-iodo-benzyl-
)-3,7-dihydro-purine-2,6-dione
[0162]
3-Benzyl-8-[1,4]diazepan-1-yl-1-(2-ethoxy-ethyl)-7-(2-iodo-benzyl)--
3,7-dihydro-purine-2,6-dione
[0163]
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(3-phenyl-allyl)-3,7-dihyd-
ro-purine-2,6-dione
[0164]
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(2-oxo-2-phenyl-ethyl)-3,7-
-dihydro-purine-2,6-dione
[0165]
2-(7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-2,6-dioxo-2,3,6,7-tetrahy-
dro-purin-1-ylmethyl)-benzonitrile
[0166]
(7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-2,6-dioxo-2,3,6,7-tetrahydr-
o-purin-1-yl)-acetonitrile
[0167]
3-Methyl-7-(2-methyl-thiazol-4-ylmethyl)-8-piperazin-1-yl-3,7-dihyd-
ro-purine-2,6-dione
[0168]
8-[1,4]Diazepan-1-yl-3-methyl-7-(2-methyl-thiazol-4-ylmethyl)-3,7-d-
ihydro-purine-2,6-dione
[0169]
3-Methyl-7-(2-oxo-2-phenyl-ethyl)-8-piperazin-1-yl-3,7-dihydro-puri-
ne-2,6-dione
[0170]
8-[1,4]Diazepan-1-yl-3-methyl-7-(2-oxo-2-phenyl-ethyl)-3,7-dihydro--
purine-2,6-dione
[0171]
8-[1,4]Diazepan-1-yl-3-methyl-7-phenethyl-3,7-dihydro-purine-2,6-di-
one
[0172]
8-[1,4]Diazepan-1-yl-1-(3-hydroxy-propyl)-7-(2-iodo-benzyl)-3-methy-
l-3,7-dihydro-purine-2,6-dione
[0173]
1-(3-Hydroxy-propyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,-
7-dihydro-purine-2,6-dione
[0174]
8-[1,4]Diazepan-1-yl-1-(2-ethoxy-ethyl)-7-(2-iodo-benzyl)-3-methyl--
3,7-dihydro-purine-2,6-dione
[0175]
1-(2-Ethoxy-ethyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7--
dihydro-purine-2,6-dione
[0176]
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(2-phenoxy-ethyl)-
-3,7-dihydro-purine-2,6-dione
[0177]
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1-[2-(2-methoxy-ethoxy)-ethy-
l]-3-methyl-3,7-dihydro-purine-2,6-dione
[0178]
7-(2-Iodo-benzyl)-1-[2-(2-methoxy-ethoxy)-ethyl]-3-methyl-8-piperaz-
in-1-yl-3,7-dihydro-purine-2,6-dione
[0179]
8-[1,4]Diazepan-1-yl-1-(3,5-dimethoxy-benzyl)-7-(2-iodo-benzyl)-3-m-
ethyl-3,7-dihydro-purine-2,6-dione
[0180]
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1-(3-methoxy-benzyl)-3-methy-
l-3,7-dihydro-purine-2,6-dione
[0181]
7-Biphenyl-2-ylmethyl-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-pur-
ine-2,6-dione
[0182]
7-(2-Bromo-benzyl)-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-purine-
-2,6-dione
[0183]
7-(2-Chloro-benzyl)-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-purin-
e-2,6-dione
[0184]
7-Benzyl-8-(3,5-dimethyl-piperazin-1-yl)-1,3-dimethyl-3,7-dihydro-p-
urine-2,6-dione
[0185]
7-(4-Methoxybenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-
-2,6-dione
[0186]
(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7--
yl)-phenylacetic acid methyl ester
[0187]
7-(5-Chloro-2-nitrobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydr-
opurine-2,6-dione
[0188]
4-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin--
7-ylmethyl) benzonitrile
[0189]
7-(4-Methanesulfonylbenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihyd-
ropurine-2,6-dione
[0190]
7-(2-Fluoro-6-nitrobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydr-
opurine-2,6-dione
[0191]
7-(4-Benzyloxybenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropuri-
ne-2,6-dione
[0192]
7-(2,4-Dichlorobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropur-
ine-2,6-dione
[0193]
1,3-Dimethyl-8-piperazin-1-yl-7-(4-trifluoromethylbenzyl)-3,7-dihyd-
ropurine-2,6-dione
[0194]
7-Biphenyl-4-ylmethyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropuri-
ne-2,6-dione
[0195]
3-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin--
7-ylmethyl) benzoic acid methyl ester
[0196]
4-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin--
7-ylmethyl) benzoic acid methyl ester
[0197]
7-Biphenyl-2-ylmethyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropuri-
ne-2,6-dione
[0198]
7-(4-tert-Butylbenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropur-
ine-2,6-dione
[0199]
1,3-Dimethyl-8-piperazin-1-yl-7-(4-trifluoromethoxybenzyl)-3,7-dihy-
dropurine-2,6-dione
[0200]
7-(3,4-Dichlorobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropur-
ine-2,6-dione
[0201]
1,3-Dimethyl-8-piperazin-1-yl-7-(4-[1,2,3]thiadiazol-4-ylbenzyl)-3,-
7-dihydropurine-2,6-dione
[0202]
4-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin--
7-ylmethyl)-3-methoxybenzoic acid methyl ester
[0203]
7-Cyclohexylmethyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydro-purine-
-2,6-dione
[0204]
7-Benzyl-8-(2,5-diaza-bicyclo[2.2.1]hept-2-yl)-1,3-dimethyl-3,7-dih-
ydro-purine-2,6-dione
[0205]
8-(6-Benzyl-[1,4]diazepan-1-yl)-7-(2-iodo-benzyl)-1,3-dimethyl-3,7--
dihydro-purine-2,6-dione
[0206]
(S)-7-Benzyl-8-(3-hydroxymethylpiperazin-1-yl)-1,3-dimethyl-3,7-dih-
ydropurine-2,6-dione
[0207]
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-oxo-2-pyrrolidin-1-yl-ethyl)-
-3,7-dihydro-purine-2,6-dione
[0208]
7-(2-Iodo-benzyl)-1,3-dimethyl-8-(6-pyridin-2-ylmethyl-[1,4]diazepa-
n-1-yl)-3,7-dihydro-purine-2,6-dione
[0209]
7-(2-Bromo-benzyl)-1,3-dimethyl-8-(6-pyridin-2-ylmethyl-[1,4]diazep-
an-1-yl)-3,7-dihydro-purine-2,6-dione
[0210] (S)
7-Benzyl-8-(3-benzyl-piperazin-1-yl)-1,3-dimethyl-3,7-dihydro-p-
urine-2,6-dione
[0211]
7-Benzyl-1,3-dimethyl-8-(3-phenethyl-piperazin-1-yl)-3,7-dihydro-pu-
rine-2,6-dione
[0212]
(R)-7-Benzyl-8-(3-benzylpiperazin-1-yl)-1,3-dimethyl-3,7-dihydropur-
ine-2,6-dione
[0213]
7-Benzyl-8(3-(2-hydroxy-benzyl)-piperazin-1-yl)-1,3-dimethyl-3,7-di-
hydro-purine-2,6-dione
[0214]
7-Benzyl-8-(3-(2-methoxy-benzyl)-piperazin-1-yl)1,3-dimethyl-3,7-di-
hydro-purine-2,6-dione
[0215] (R)
7-Benzyl-8-(3-(4-methoxy-benzyl)-piperazin-1-yl)1,3-dimethyl-3,-
7-dihydro-purine-2,6-dione
[0216]
(R)-7-Benzyl-8-(3-(4-hydroxy-benzyl)-piperazin-1-yl)-1,3-dimethyl-3-
,7-dihydro-purine-2,6-dione
[0217]
(R)-7-Benzyl-1,3-dimethyl-8-(3-(4-nitro-benzyl)-piperazin-1-yl)-3,7-
-dihydro-purine-2,6-dione
[0218]
(R)-7-Benzyl-8-(3-(4-fluoro-benzyl)-piperazin-1-yl)-1,3-dimethyl-3,-
7-dihydro-purine-2,6-dione
[0219]
(R)-4-(4-(7-Benzyl-1,3-dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-pur-
in-8-yl)-piperazin-2-ylmethyl)-benzonitrile
[0220]
(R)-6-(8-(3-Benzyl-piperazin-1-yl)-1,3-dimethyl-2,6-dioxo-1,2,3,6-t-
etrahydro-purin-7-ylmethyl)-nicotinonitrile
[0221]
(R)-7-Benzyl-1,3-dimethyl-8-(3-thiazol-4-ylmethyl-piperazin-1-yl)-3-
,7-dihydro-purine-2,6-dione
[0222]
(R)-2-[1,3-Dimethyl-2,6-dioxo-8-(3-thiophen-2-ylmethyl-piperazin-1--
yl)-1,2,3,6-tetrahydro-purin-7-ylmethyl]-benzonitrile
[0223]
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(tetrahydro-furan-2-ylmeth-
yl)-3,7-dihydro-purine-2,6-dione
[0224]
7-Benzyl-1-(2-cyclohexyl-ethyl)-8-[1,4]diazepan-1-yl-3-methyl-3,7-d-
ihydro-purine-2,6-dione
[0225]
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(5-methyl-hexyl)-3,7-dihyd-
ro-purine-2,6-dione
[0226]
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(3-methyl-butyl)-3,7-dihyd-
ro-purine-2,6-dione
[0227]
7-Benzyl-8-[1,4]diazepan-1-yl-1-(2-ethoxy-ethyl)-3-methyl-3,7-dihyd-
ro-purine-2,6-dione
[0228]
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(tetrahydro-furan-
-2-ylmethyl)-3,7-dihydro-purine-2,6-dione
[0229]
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-1-(tetrahydro-furan-2-y-
lmethyl)-3,7-dihydro-purine-2,6-dione
[0230]
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(tetrahydro-pyran-
-2-ylmethyl)-3,7-dihydro-purine-2,6-dione
[0231]
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-1-(tetrahydro-pyran-2-y-
lmethyl)-3,7-dihydro-purine-2,6-dione
[0232]
7-(2-Iodo-benzyl)-3-methyl-1-(2-phenoxy-ethyl)-8-piperazin-1-yl-3,7-
-dihydro-purine-2,6-dione
[0233]
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1-(2-methoxy-ethyl)-3-methyl-
-3,7-dihydro-purine-2,6-dione
[0234]
7-(2-Iodo-benzyl)-1-(2-methoxy-ethyl)-3-methyl-8-piperazin-1-yl-3,7-
-dihydro-purine-2,6-dione
[0235]
1-(2-Benzyloxy-ethyl)-8-[1,4]diazepan-1-yl-7-(2-iodo-benzyl)-3-meth-
yl-3,7-dihydro-purine-2,6-dione
[0236]
1-(2-Benzyloxy-ethyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3-
,7-dihydro-purine-2,6-dione
[0237]
1-(3,5-Dimethoxy-benzyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-y-
l-3,7-dihydro-purine-2,6-dione
[0238]
7-(2-Iodo-benzyl)-1-(3-methoxy-benzyl)-3-methyl-8-piperazin-1-yl-3,-
7-dihydro-purine-2,6-dione
[0239]
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(3-trifluorometho-
xy-benzyl)-3,7-dihydro-purine-2,6-dione
[0240]
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-1-(3-trifluoromethoxy-b-
enzyl)-3,7-dihydro-purine-2,6-dione
[0241]
8-[1,4]Diazepan-1-yl-1-(2-hydroxy-propyl)-7-(2-iodo-benzyl)-3-methy-
l-3,7-dihydro-purine-2,6-dione
[0242]
8-[1,4]Diazepan-1-yl-1-(2,2-diethoxy-ethyl)-7-(2-iodo-benzyl)-3-met-
hyl-3,7-dihydro-purine-2,6-dione
[0243]
8-[1,4]Diazepan-1-yl-1-(2,2-dimethoxy-ethyl)-7-(2-iodo-benzyl)-3-me-
thyl-3,7-dihydro-purine-2,6-dione
[0244]
8-[1,4]Diazepan-1-yl-1-(2-[1,3]dioxolan-2-yl-ethyl)-7-(2-iodo-benzy-
l)-3-methyl-3,7-dihydro-purine-2,6-dione
[0245]
1-(2-[1,3]Dioxolan-2-yl-ethyl)-7-(2-iodo-benzyl)-3-methyl-8-piperaz-
in-1-yl-3,7-dihydro-purine-2,6-dione
[0246]
1-[1,3]Dioxolan-2-ylmethyl-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-
-yl-3,7-dihydro-purine-2,6-dione
[0247]
8-[1,4]Diazepan-1-yl-1-(2-[1,3]dioxan-2-yl-ethyl)-7-(2-iodo-benzyl)-
-3-methyl-3,7-dihydro-purine-2,6-dione
[0248]
1-(2-[1,3]Dioxan-2-yl-ethyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-
-1-yl-3,7-dihydro-purine-2,6-dione
[0249]
8-[1,4]Diazepan-1-yl-1-(2,3-dihydroxy-propyl)-7-(2-iodo-benzyl)-3-m-
ethyl-3,7-dihydro-purine-2,6-dione
[0250]
1-(2,3-Dihydroxy-propyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-y-
l-3,7-dihydro-purine-2,6-dione
[0251]
8-[1,4]Diazepan-1-yl-1-(3-hydroxy-2-methyl-propyl)-7-(2-iodo-benzyl-
)-3-methyl-3,7-dihydro-purine-2,6-dione
[0252]
1-(3-Hydroxy-2-methyl-propyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazi-
n-1-yl-3,7-dihydro-purine-2,6-dione
[0253]
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-[3-(tetrahydro-py-
ran-2-yloxy)-propyl]-3,7-dihydro-purine-2,6-dione
[0254]
8-[1,4]Diazepan-1-yl-1-(2-fluoro-ethyl)-7-(2-iodo-benzyl)-3-methyl--
3,7-dihydro-purine-2,6-dione
[0255]
7-Benzyl-8-[1,4]diazepan-1-yl-1-(3-hydroxy-propyl)-3-methyl-3,7-dih-
ydro-purine-2,6-dione
[0256]
7-Biphenyl-2-ylmethyl-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-pur-
ine-2,6-dione
[0257] In another aspect, the invention provides compounds in one
of the three groups A, B and C.
[0258] Group A
[0259] In the compounds of group A, the invention provides
compounds of formula I 3
[0260] wherein
[0261] n and m is one or two independently;
[0262] R.sup.1 is C.dbd.O; C.dbd.S; C.sub.1-C.sub.2 alkyl; C.sub.2
alkenyl; C.sub.2 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl; heteroaryl-C.sub.1-C.sub.3 alkyl, wherein each alkyl,
alkenyl, cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3
alkyl, heteroaryl, or heteroaryl-C.sub.1-C.sub.3 alkyl is
optionally substituted with one or more R.sup.4 independently;
[0263] R.sup.2 is H; C.sub.1-C.sub.7 alkyl; C.sub.2-C.sub.7
alkenyl; C.sub.2-C.sub.7 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl; cyano; halogen;
hydroxy, nitro; --SH; --SR.sup.5; --SOR.sup.5; --SO.sub.2R.sup.5;
carboxy; --CO.sub.2R.sup.4; --CON(R.sup.5).sub.2; C.sub.1-C.sub.10
alkyloxy; C.sub.2-C.sub.10 alkenyloxy; C.sub.2-C.sub.10 alkynyloxy,
aryloxy; heteroaryloxy, wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl, heteroaryl-C.sub.1-C.sub.3 alkyl, alkyloxy; alkenyloxy;
alkynyloxy, aryloxy, or heteroaryloxy is optionally substituted
with one or more R.sup.11 independently;
[0264] R.sup.3 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl;
C.sub.1-C.sub.10alkyl-O-C.s- ub.1-C.sub.5alkyl; carboxy; cyano;
nitro; halogen; hydroxy; wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl-C.sub.1-C.sub.3 alkyl, heteroaryl, or alkyl-O-alkyl is
optionally substituted with one or more R.sup.12 independently; two
R.sup.3 attached to the same carbon atom may form a spiro
system;
[0265] R.sup.4, R.sup.11, R.sup.12, and R.sup.17 are independently
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10
alkynyl; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; heteroaryl; cyano; halogen; hydroxy, nitro;
trifluormethyl; N(R.sup.13).sub.2; .dbd.O; .dbd.S; C.sub.1-C.sub.10
alkyloxy; C.sub.2-C.sub.10 alkenyloxy; C.sub.2-C.sub.10 alkynyloxy;
aryloxy; heteroaryloxy, wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, heteroaryl, alkyloxy;
alkenyloxy; alkynyloxy, aryloxy, or heteroaryloxy is optionally
substituted with one or more R.sup.8 independently; two R.sup.4
attached to the same carbon atom may form a spiroheterocyclic
system, preferably hydantoine; thiohydantoine;
oxazolidine-2,5-dione;
[0266] R.sup.5 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.5 alkyl;
heteroaryl; heteroaryl-C.sub.1-C.sub.5 alkyl, wherein each alkyl,
alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl, aryl alkyl,
heteroaryl, or heteroaryl alkyl is optionally substituted with one
or more R.sup.14 independently;
[0267] R.sup.6 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl, wherein each
each alkyl, alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl,
or heteroaryl is optionally substituted with one or more R.sup.15
independently;
[0268] R.sup.7 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl, wherein each
each alkyl, alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl,
or heteroaryl is optionally substituted with one or more R.sup.16
independently;
[0269] R.sup.8, R.sup.14, R.sup.15, and R.sup.16 are independently
H; nitro; --OCH.sub.3; cyano; halogen; --OH; --SH; --SCH.sub.3;
[0270] R.sup.9 is H; halogen; C.sub.1-C.sub.10 alkyl or aryl,
wherein alkyl or aryl is optionally substituted with one or more
R.sup.17 independently
[0271] R.sup.10 is H; halogen;
[0272] or, R.sup.9 and R.sup.10 may be connected to form a
cyclopropyl ring;
[0273] R.sup.13 is H; C.sub.1-C.sub.10 alkyl or aryl;
[0274] or a salt thereof with a pharmaceutically acceptable acid or
base;
[0275] with the exception of the following compounds:
[0276]
1,3-dimethyl-7-(2-oxo-propyl)-8-piperazin-1-yl-3,7-dihydro-purine-2-
,6-dione,
[0277]
1,3,1',3',7'-pentamethyl-8-piperazin-1-yl-3,7,3',7'-tetrahydro-7,8'-
-methanediyl-bis-purine-2,6-dione,
[0278] 3,4,5-trimethoxy-benzoic acid
2-(1,3-dimethyl-2,6-dioxo-8-piperazin-
-1-yl-1,2,3,6-tetrahydro-purin-7-yl)-ethyl ester,
[0279]
7-[2-Hydroxy-3-(4-methoxy-phenoxy)-propyl]-3-methyl-8-piperazin-1-y-
l-3,7-dihydro-purine-2,6-dione,
[0280]
7-[2-hydroxy-2-(4-nitro-phenyl)-ethyl]-3-methyl-8-piperazin-1-yl-3,-
7,8,9-tetrahydro-purine-2,6-dione,
[0281]
7-Benzyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
[0282]
7-(4-Chloro-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,-
6-dione,
[0283]
7-(2-Chloro-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,-
6-dione,
[0284]
7-Ethyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
[0285]
3-Methyl-8-piperazin-1-yl-1,7-dipropyl-3,7-dihydro-purine-2,6-dione-
,
[0286]
3-Methyl-7-(3-methyl-butyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-
-dione,
[0287]
7-Butyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
[0288]
3-Methyl-7-(3-phenyl-propyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,-
6-dione,
[0289]
7-But-2-enyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione-
,
[0290]
7-(3-Chloro-but-2-enyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purin-
e-2,6-dione,
[0291]
7-Heptyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
[0292]
3-Methyl-7-(2-phenyl-ethyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-
-dione,
[0293]
3-Methyl-7-(3-methyl-benzyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,-
6-dione,
[0294]
3-Methyl-7-propyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione,
and
[0295]
3-Methyl-7-pentyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione.
[0296] Group B
[0297] In the compounds of group B, the invention provides
compounds of formula I 4
[0298] wherein
[0299] n and m is one or two independently;
[0300] with the proviso that if n is 2 then m is also 2;
[0301] R.sup.1 is C.dbd.O; C.dbd.S; C.sub.1-C.sub.2 alkyl; C.sub.2
alkenyl; C.sub.2 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl; heteroaryl-C.sub.1-C.sub.3 alkyl, wherein each alkyl,
alkenyl, cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3
alkyl, heteroaryl, or heteroaryl-C.sub.1-C.sub.3 alkyl is
optionally substituted with one or more R.sup.4 independently;
[0302] R.sup.2 is H; C.sub.1-C.sub.7 alkyl; C.sub.2-C.sub.7
alkenyl; C.sub.2-C.sub.7 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl; cyano; halogen;
hydroxy, nitro; --SH; --SR.sup.5; --SOR.sup.5; --SO.sub.2R.sup.5;
carboxy; --CO.sub.2R.sup.4; --CON(R.sup.5).sub.2; C.sub.1-C.sub.10
alkyloxy; C.sub.2-C.sub.10 alkenyloxy; C.sub.2-C.sub.10 alkynyloxy,
aryloxy; heteroaryloxy, wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl, heteroaryl-C.sub.1-C.sub.3 alkyl, alkyloxy; alkenyloxy;
alkynyloxy, aryloxy, or heteroaryloxy is optionally substituted
with one or more R.sup.11 independently;
[0303] R.sup.3 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl;
C.sub.1-C.sub.10alkyl-O-C.s- ub.1-C.sub.5alkyl; carboxy; cyano;
nitro; halogen; hydroxy; wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl-C.sub.1-C.sub.3 alkyl, heteroaryl, or alkyl-O-alkyl is
optionally substituted with one or more R.sup.12 independently; two
R.sup.3 attached to the same carbon atom may form a spiro
system;
[0304] R.sup.4, R.sup.11, R.sup.12, and R.sup.17 are independently
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10alkenyl; C.sub.2-C.sub.10
alkynyl; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; heteroaryl; cyano; halogen; hydroxy, nitro;
trifluormethyl; N(R.sup.13).sub.2; .dbd.O; .dbd.S; C.sub.1-C.sub.10
alkyloxy; C.sub.2-C.sub.10 alkenyloxy; C.sub.2-C.sub.10 alkynyloxy;
aryloxy; heteroaryloxy, wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, heteroaryl, alkyloxy;
alkenyloxy; alkynyloxy, aryloxy, or heteroaryloxy is optionally
substituted with one or more R.sup.8 independently; two R.sup.4
attached to the same carbon atom may form a spiroheterocyclic
system, preferably hydantoine; thiohydantoine;
oxazolidine-2,5-dione;
[0305] R.sup.5 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.5 alkyl;
heteroaryl; heteroaryl-C.sub.1-C.sub.5 alkyl , wherein each alkyl,
alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl, aryl alkyl,
heteroaryl, or heteroaryl alkyl is optionally substituted with one
or more R.sup.14 independently;
[0306] R.sup.6 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl, wherein each
each alkyl, alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl,
or heteroaryl is optionally substituted with one or more R.sup.15
independently;
[0307] R.sup.7 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl, wherein each
each alkyl, alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl,
or heteroaryl is optionally substituted with one or more R.sup.16
independently;
[0308] R.sup.8, R.sup.14, R.sup.15, and R.sup.16 are independently
H; nitro; --OCH.sub.3; cyano; halogen; --OH; --SH; --SCH.sub.3;
[0309] R.sup.9 is H; halogen; C.sub.1-C.sub.10 alkyl optionally
substituted with one or more R.sup.17 independently
[0310] R.sup.10 is H; halogen;
[0311] or, R.sup.9 and R.sup.10 may be connected to form a
cyclopropyl ring;
[0312] R.sup.13 is H; C.sub.1-C.sub.10 alkyl or aryl;
[0313] or a salt thereof with a pharmaceutically acceptable acid or
base.
[0314] Group C
[0315] In the compounds of group C, the invention provides
compounds of formula I 5
[0316] wherein
[0317] n and m is one or two independently;
[0318] R.sup.1 is C.dbd.O; C.dbd.S; C.sub.1-C.sub.2 alkyl; C.sub.2
alkenyl; C.sub.2 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl; heteroaryl-C.sub.1-C.sub.3 alkyl, wherein each alkyl,
alkenyl, cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3
alkyl, heteroaryl, or heteroaryl-C.sub.1-C.sub.3 alkyl is
optionally substituted with one or more R.sup.4 independently;
[0319] R.sup.2 is H; C.sub.1-C.sub.7 alkyl; C.sub.2-C.sub.7
alkenyl; C.sub.2-C.sub.7 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl; cyano; halogen;
hydroxy, nitro; --SH; --SR.sup.5; --SOR.sup.5; --SO.sub.2R.sup.5;
carboxy; --CO.sub.2R.sup.4; --CON(R.sup.5).sub.2; C.sub.1-C.sub.10
alkyloxy; C.sub.2-C.sub.10 alkenyloxy; C.sub.2-C.sub.10 alkynyloxy,
aryloxy; heteroaryloxy, wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl, heteroaryl-C.sub.1-C.sub.3 alkyl, alkyloxy; alkenyloxy;
alkynyloxy, aryloxy, or heteroaryloxy is optionally substituted
with one or more R.sup.11 independently;
[0320] R.sup.3 is C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.3 alkyl;
heteroaryl-C.sub.1-C.sub.3 alkyl; heteroaryl;
C.sub.1-C.sub.10alkyl-O-C.s- ub.1-C.sub.5alkyl; carboxy; cyano;
nitro; halogen; hydroxy; wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, aryl-C.sub.1-C.sub.3 alkyl,
heteroaryl-C.sub.1-C.sub.3 alkyl, heteroaryl, or alkyl-O-alkyl is
optionally substituted with one or more R.sup.12 independently; two
R.sup.3 attached to the same carbon atom may form a spiro
system;
[0321] R.sup.4, R.sup.11, R.sup.12, and R.sup.17 are independently
C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; C.sub.2-C.sub.10
alkynyl; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; heteroaryl; cyano; halogen; hydroxy, nitro;
trifluormethyl; N(R.sup.13).sub.2; .dbd.O; .dbd.S; C.sub.1-C.sub.10
alkyloxy; C.sub.2-C.sub.10 alkenyloxy; C.sub.2-C.sub.10 alkynyloxy;
aryloxy; heteroaryloxy, wherein each alkyl, alkenyl, alkynyl,
cycloalkyl, cycloheteroalkyl, aryl, heteroaryl, alkyloxy;
alkenyloxy; alkynyloxy, aryloxy, or heteroaryloxy is optionally
substituted with one or more R.sup.8 independently; two R.sup.4
attached to the same carbon atom may form a spiroheterocyclic
system, preferably hydantoine; thiohydantoine;
oxazolidine-2,5-dione;
[0322] R.sup.5 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; aryl-C.sub.1-C.sub.5 alkyl;
heteroaryl; heteroaryl-C.sub.1-C.sub.5 alkyl , wherein each alkyl,
alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl, aryl alkyl,
heteroaryl, or heteroaryl alkyl is optionally substituted with one
or more R.sup.14 independently;
[0323] R.sup.6 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl, wherein each
each alkyl, alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl,
or heteroaryl is optionally substituted with one or more R.sup.15
independently;
[0324] R.sup.7 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10
alkenyl; C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl, wherein each
each alkyl, alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl,
or heteroaryl is optionally substituted with one or more R.sup.16
independently;
[0325] R.sup.8, R.sup.14, R.sup.15, and R.sup.16 are independently
H; nitro; --OCH.sub.3; cyano; halogen; --OH; --SH; --SCH.sub.3;
[0326] R.sup.9 is H; halogen; C.sub.1-C.sub.10 alkyl optionally
substituted with one or more R.sup.17 independently
[0327] R.sup.10 is H; halogen;
[0328] or, R.sup.9 and R.sup.10 may be connected to form a
cyclopropyl ring;
[0329] R.sup.13 is H; C.sub.1-C.sub.10 alkyl or aryl;
[0330] or a salt thereof with a pharmaceutically acceptable acid or
base.
[0331] In a further embodiment of the compounds of group A, B and
C, R.sup.1 is C.dbd.O; C.sub.1-C.sub.2 alkyl; C.sub.2 alkenyl;
C.sub.2 alkynyl; C.sub.3-C.sub.7 cycloalkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; or heteroaryl, wherein each alkyl, alkenyl,
cycloalkyl, cycloheteroalkyl, aryl, or heteroaryl is optionally
substituted with one or more R.sup.4 independently.
[0332] In a further embodiment of the compounds of group A, B and
C, R.sup.1 is C.dbd.O; C.sub.1-C.sub.2 alkyl; C.sub.3-C.sub.7
cycloalkyl; aryl; or heteroaryl, wherein each alkyl, cycloalkyl,
aryl, or heteroaryl is optionally substituted with one or more
R.sup.4 independently.
[0333] In a further embodiment of the compounds of group A, B and
C, R.sup.1 is C.dbd.O or aryl optionally substituted with one or
more R.sup.4 independently.
[0334] In a further embodiment of the compounds of group A, B and
C, R.sup.1 is aryl optionally substituted with one or more R.sup.4
independently.
[0335] In a further embodiment of the compounds of group A, B and
C, R.sup.1 is aryl.
[0336] In a further embodiment of the compounds of group A, B and
C, R.sup.1 is phenyl.
[0337] In a further embodiment of the compounds of group A, B and
C, R.sup.2 is H; C.sub.1-C.sub.7 alkyl; C.sub.2-C.sub.7 alkenyl;
C.sub.2-C.sub.7 alkynyl; C.sub.3-C.sub.7 cycloalkyl;
C.sub.3-C.sub.7 cycloheteroalkyl; aryl; heteroaryl; cyano; halogen;
hydroxy, nitro; --SH; --SR.sup.5; --SOR.sup.5; --SO.sub.2R.sup.5;
--CO.sub.2R.sup.4; C.sub.1-C.sub.10 alkyloxy; C.sub.2-C.sub.10
alkenyloxy; C.sub.2-C.sub.10 alkynyloxy, wherein each alkyl,
alkenyl, alkynyl, cycloalkyl, cycloheteroalkyl, aryl, heteroaryl,
alkyloxy, alkenyloxy, or alkynyloxy is optionally substituted with
one or more R.sup.11 independently.
[0338] In a further embodiment of the compounds of group A, B and
C, R.sup.2 is H; C.sub.1-C.sub.7 alkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; cyano; halogen; nitro; --SR.sup.5;
--SO.sub.2R.sup.5; --CO.sub.2R.sup.4; or C.sub.1-C.sub.10 alkyloxy;
wherein each alkyl, cycloheteroalkyl, aryl, or alkyloxy is
optionally substituted with one or more R.sup.11 independently.
[0339] In a further embodiment of the compounds of group A, B and
C, R.sup.2 is H; C.sub.1-C.sub.7 alkyl; C.sub.3-C.sub.7
cycloheteroalkyl; aryl; cyano; halogen; --CO.sub.2R.sup.4; or
C.sub.1-C.sub.10 alkyloxy; wherein each alkyl, cycloheteroalkyl,
aryl, or alkyloxy is optionally substituted with one or more
R.sup.11 independently.
[0340] In a further embodiment of the compounds of group A, B and
C, R.sup.2 is H; C.sub.1-C.sub.7 alkyl; cyano; halogen; or
C.sub.1-C.sub.10 alkyloxy; wherein each alkyl or alkyloxy is
optionally substituted with one or more R.sup.11 independently.
[0341] In a further embodiment of the compounds of group A, B and
C, R.sup.2 is H; cyano or halogen.
[0342] In a further embodiment of the compounds of group A, B and C
R.sup.2 is H.
[0343] In a further embodiment of the compounds of group A and B,
R.sup.3 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl; aryl;
C.sub.1-C.sub.10alkyl-O-C.sub.- 1-C.sub.5alkyl; cyano; nitro;
halogen; hydroxy; wherein each alkyl, alkenyl, alkynyl, cycloalkyl,
aryl, or alkyl-O-alkyl is optionally substituted with one or more
R.sup.12 independently; two R.sup.3 attached to the same carbon
atom may form a spiro system.
[0344] In a further embodiment of the compounds of group A and B,
R.sup.3 is H; C.sub.1-C.sub.10 alkyl;
C.sub.1-C.sub.10alkyl-O-C.sub.1-C.sub.5alky- l; hydroxy; wherein
alkyl, or alkyl-O-alkyl is optionally substituted with one or more
R.sup.12 independently; two R.sup.3 attached to the same carbon
atom may form a spiro system.
[0345] In a further embodiment of the compounds of group A and B,
R.sup.3 is H or C.sub.1-C.sub.10 alkyl optionally substituted with
one or more R.sup.12 independently; two R.sup.3 attached to the
same carbon atom may form a spiro system.
[0346] In a further embodiment of the compounds of group A and B,
R.sup.3 is H or C.sub.1-C.sub.10 alkyl.
[0347] In a further embodiment of the compounds of group A and B,
R.sup.3 is methyl, ethyl, or isopropyl.
[0348] In a further embodiment of the compounds of group A and B,
R.sup.3 is H.
[0349] In a further embodiment of the compounds of group C, R.sup.3
is C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl; aryl;
C.sub.1-C.sub.10alkyl-O-C.sub.- 1-C.sub.5alkyl; cyano; nitro;
halogen; hydroxy; wherein each alkyl, alkenyl, alkynyl, cycloalkyl,
aryl, or alkyl-O-alkyl is optionally substituted with one or more
R.sup.12 independently; two R.sup.3 attached to the same carbon
atom may form a spiro system.
[0350] In a further embodiment of the compounds of group C, R.sup.3
is C.sub.1-C.sub.10 alkyl;
C.sub.1-C.sub.10alkyl-O-C.sub.1-C.sub.5alkyl; hydroxy; wherein
alkyl, or alkyl-O-alkyl is optionally substituted with one or more
R.sup.12 independently; two R.sup.3 attached to the same carbon
atom may form a spiro system.
[0351] In a further embodiment of the compounds of group C, R.sup.3
is C.sub.1-C.sub.10 alkyl optionally substituted with one or more
R.sup.12 independently; two R.sup.3 attached to the same carbon
atom may form a spiro system.
[0352] In a further embodiment of the compounds of group C, R.sup.3
is C.sub.1-C.sub.10 alkyl.
[0353] In a further embodiment of the compounds of group C, R.sup.3
is methyl, ethyl, or isopropyl
[0354] In a further embodiment of the compounds of group A, B and
C, R.sup.4 is C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl; aryl;
heteroaryl; cyano; halogen; hydroxy, nitro; wherein each alkyl,
alkenyl, alkynyl, cycloalkyl, aryl, or heteroaryl is optionally
substituted with one or more R.sup.8 independently.
[0355] In a further embodiment of the compounds of group A, B and
C, R.sup.4 is C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl; or
C.sub.2-C.sub.10 alkynyl; wherein each alkyl, alkenyl, or alkynyl
is optionally substituted with one or more R.sup.8
independently.
[0356] In a further embodiment of the compounds of group A, B and
C, R.sup.4 is C.sub.1-C.sub.10 alkyl optionally substituted with
one or more R.sup.8 independently.
[0357] In a further embodiment of the compounds of group A, B and
C, R.sup.4 is C.sub.1-C.sub.10 alkyl.
[0358] In a further embodiment of the compounds of group A, B and
C, R.sup.4 is methyl.
[0359] In a further embodiment of the compounds of group A, B and
C, R.sup.5 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl; aryl;
heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, aryl,
or heteroaryl is optionally substituted with one or more R.sup.14
independently.
[0360] In a further embodiment of the compounds of group A, B and
C, R.sup.5 is C.sub.1-C.sub.10 alkyl or aryl; wherein each alkyl or
aryl is optionally substituted with one or more R.sup.14
independently.
[0361] In a further embodiment of the compounds of group A, B and
C, R.sup.6 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; C.sub.3-C.sub.7 cycloalkyl; or aryl;
wherein each each alkyl, alkenyl, alkynyl, cycloalkyl, or aryl is
optionally substituted with one or more R.sup.15 independently.
[0362] In a further embodiment of the compounds of group A, B and
C, R.sup.6 is H; C.sub.1-C.sub.10 alkyl; or C.sub.2-C.sub.10
alkenyl; wherein each each alkyl or alkenyl is optionally
substituted with one or more R.sup.15 independently.
[0363] In a further embodiment of the compounds of group A, B and
C, R.sup.6 is H or C.sub.1-C.sub.10 alkyl optionally substituted
with one or more R.sup.15 independently.
[0364] In a further embodiment of the compounds of group A, B and
C, R.sup.6 is H.
[0365] In a further embodiment of the compounds of group A, B and
C, R.sup.6 is C.sub.1-C.sub.10 alkyl optionally substituted with
one or more R.sup.15 independently.
[0366] In a further embodiment of the compounds of group A, B and
C, R.sup.6 is C.sub.1-C.sub.10 alkyl.
[0367] In a further embodiment of the compounds of group A, B and
C, R.sup.6 is methyl.
[0368] In a further embodiment of the compounds of group A, B and
C, R.sup.7 is H; C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
or C.sub.2-C.sub.10 alkynyl, wherein each each alkyl, alkenyl, or
alkynyl is optionally substituted with one or more R.sup.16
independently.
[0369] In a further embodiment of the compounds of group A, B and
C, R.sup.7 is C.sub.1-C.sub.10 alkyl optionally substituted with
one or more R.sup.16 independently.
[0370] In a further embodiment of the compounds of group A, B and
C, R.sup.7 is C.sub.1-C.sub.10 alkyl.
[0371] In a further embodiment of the compounds of group A, B and
C, R.sup.8 is --OCH.sub.3.
[0372] In a further embodiment of the compounds of group A, B and
C, R.sup.9 is aryl.
[0373] In a further embodiment of the compounds of group A, B and
C, R.sup.11 is C.sub.1-C.sub.10 alkyl; aryl; cyano; halogen;
wherein each alkyl or aryl is optionally substituted with one or
more R.sup.8 independently.
[0374] In a further embodiment of the compounds of group A, B and
C, R.sup.11 is halogen.
[0375] In a further embodiment of the compounds of group A, B and
C, R.sup.12 is C.sub.1-C.sub.10 alkyl; C.sub.2-C.sub.10 alkenyl;
C.sub.2-C.sub.10 alkynyl; aryl; heteroaryl; cyano; halogen;
hydroxy, nitro; wherein each alkyl, alkenyl, alkynyl, aryl,
heteroaryl is optionally substituted with one or more R.sup.8
independently.
[0376] In a further embodiment of the compounds of group A, B and
C, R.sup.12 is aryl; heteroaryl; or hydroxy; wherein each aryl and
heteroaryl is optionally substituted with one or more R.sup.8
independently.
[0377] In a further embodiment of the compounds of group A, B and
C, R.sup.12 is phenyl, pyridyl, or pyrrolidinyl.
[0378] In a further embodiment of the compounds of group A, B and
C, R.sup.12 is hydroxy.
[0379] In a further embodiment of the compounds of group A, B and
C, R.sup.14 is halogen.
[0380] A further aspect of the invention is a pharmaceutical
composition comprising, as an active ingredient, at least one
compound of the invention or a pharmaceutically acceptable salt or
prodrug or hydrate thereof together with a pharmaceutically
acceptable carrier or diluent.
[0381] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for treating
diseases that are associated with proteins which are subject to
inactivation by DPP-IV.
[0382] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for treatment
of metabolic disorders.
[0383] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for blood
glucose lowering.
[0384] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for treatment
of Type 2 diabetes.
[0385] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for the
treatment of impaired glucose tolerance (IGT).
[0386] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for the
treatment of impaired fasting glucose (IFG).
[0387] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for prevention
of hyperglycemia.
[0388] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for delaying
the progression of impaired glucose tolerance (IGT) to Type 2
diabetes.
[0389] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for delaying
the progression of non-insulin requiring Type 2 diabetes to insulin
requiring Type 2 diabetes
[0390] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for increasing
the number and/or the size of beta cells in a mammalian
subject.
[0391] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for treatment
of beta cell degeneration, in particular apoptosis of beta
cells.
[0392] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for the
treatment of disorders of food intake.
[0393] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for the
treatment of obesity.
[0394] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for appetite
regulation or induction of satiety.
[0395] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for the
treatment of dyslipidemia.
[0396] A further aspect of the invention is the use of a compound
of the invention for the manufacture of a medicament for treatment
of functional dyspepsia, in particular irritable bowel
syndrome.
[0397] A further aspect of the invention is a method for the
treatment of diseases or disorders associated with proteins that
are subject to inactivation by DPP-IV, the method comprising
administering to a subject in need thereof an effective amount of a
compound of the invention.
[0398] A further aspect of the invention is methods of treating the
above mentioned diseases, the method comprising administering to a
subject in need thereof an effective amount of a compound of the
invention.
[0399] The compounds of the present invention may be prepared in
the form of pharmaceutically acceptable salts, especially
acid-addition salts, including salts of organic acids and mineral
acids. Examples of such salts include salts of organic acids such
as formic acid, fumaric acid, acetic acid, propionic acid, glycolic
acid, lactic acid, pyruvic acid, oxalic acid, succinic acid, malic
acid, tartaric acid, citric acid, benzoic acid, salicylic acid and
the like. Suitable inorganic acid-addition salts include salts of
hydrochloric, hydrobromic, sulphuric and phosphoric acids and the
like. Further examples of pharmaceutically acceptable inorganic or
organic acid addition salts include the pharmaceutically acceptable
salts listed in Journal of Pharmaceutical Science, 66, 2 (1977)
which are known to the skilled artisan.
[0400] Also intended as pharmaceutically acceptable acid addition
salts are the hydrates which the present compounds are able to
form.
[0401] The acid addition salts may be obtained as the direct
products of compound synthesis. In the alternative, the free base
may be dissolved in a suitable solvent containing the appropriate
acid, and the salt isolated by evaporating the solvent or otherwise
separating the salt and solvent.
[0402] The compounds of this invention may form solvates with
standard low molecular weight solvents using methods known to the
skilled artisan.
[0403] It is to be understood that the invention extends to all of
the stereo isomeric forms of the claimed compounds, as well as the
racemates.
[0404] In the compounds of formula II, the bonds in the B-ring may
be unsaturated, such that the B-ring is a five-membered or a
six-membered carbocyclic or heterocyclic ring, which is fully
unsaturated.
[0405] In a preferred embodiment of the compounds of formula II,
D.sup.3, D.sup.4 and at least one D.sup.5 are present, and D.sup.1,
D.sup.2, D.sup.3, D.sup.4, and each D.sup.5 may independently be a
carbon, nitrogen, oxygen, or a sulfur atom, or C.dbd.O, or C.dbd.S,
and the bonds in the B-ring are unsaturated, such that the B-ring
is a five-membered or a six-membered carbocyclic or heterocyclic
ring, which is fully unsaturated.
[0406] When a D-ring is present in the compounds of formula II, the
bonds in the D-ring are preferably unsaturated, such that the
D-ring may be a five-membered or a six-membered carbocyclic or
heterocyclic ring, which is fully unsaturated.
[0407] In the compounds of formula II, each n.sub.1, n.sub.2, may
be one or two, independently n.sub.3 is one, and n.sub.4 is
two,
[0408] D.sup.1 and D.sup.2 may be carbon atoms, D.sup.4 and one of
the D.sup.5 may be nitrogen atoms, and D.sup.3 and the other
D.sup.5 may be C.dbd.O, or C.dbd.S,
[0409] the bonds in the B-ring may be unsaturated, such that the
B-ring is a five-membered carbocyclic or heterocyclic ring, which
is fully unsaturated.
[0410] In particular, in the compounds of formula II, n.sub.1 is
two and each of n.sub.2, n.sub.3, n.sub.4 is one or two,
independently.
[0411] In a specific embodiment of the compound of formula II,
[0412] the B-ring is a benzene ring
[0413] each n.sub.1, n.sub.2, is one or two, independently,
[0414] D.sup.3, D.sup.4, and D.sup.5 are absent, such that D.sup.1
and D.sup.2 may each be optionally substituted with one R.sup.2,
independently.
[0415] Pharmaceutical Compositions
[0416] In another aspect, the present invention includes within its
scope pharmaceutical compositions comprising, as an active
ingredient, at least one compound of the invention which inhibits
the enzymatic activity of DPP-IV or a pharmaceutically acceptable
salt or prodrug or hydrate thereof together with a pharmaceutically
acceptable carrier or diluent. Pharmaceutical compositions
containing a compound of the invention of the present invention may
be prepared by conventional techniques, e.g. as described in
Remington: The Science and Practise of Pharmacy, 19.sup.th Ed.,
1995. The compositions may appear in conventional forms, for
example capsules, tablets, aerosols, solutions, suspensions or
topical applications.
[0417] Typical compositions include a compound of the invention
which inhibits the enzymatic activity of DPP-IV or a
pharmaceutically acceptable basic addition salt or prodrug or
hydrate thereof, associated with a pharmaceutically acceptable
excipient which may be a carrier or a diluent or be diluted by a
carrier, or enclosed within a carrier which can be in the form of a
capsule, sachet, paper or other container. In making the
compositions, conventional techniques for the preparation of
pharmaceutical compositions may be used. For example, the active
compound will usually be mixed with a carrier, or diluted by a
carrier, or enclosed within a carrier which may be in the form of a
ampoule, capsule, sachet, paper, or other container. When the
carrier serves as a diluent, it may be solid, semi-solid, or liquid
material which acts as a vehicle, excipient, or medium for the
active compound. The active compound can be adsorbed on a granular
solid container for example in a sachet. Some examples of suitable
carriers are water, salt solutions, alcohols, polyethylene glycols,
polyhydroxyethoxylated castor oil, peanut oil, olive oil, gelatine,
lactose, terra alba, sucrose, dextrin, magnesium carbonate, sugar,
cyclodextrin, amylose, magnesium stearate, talc, gelatine, agar,
pectin, acacia, stearic acid or lower alkyl ethers of cellulose,
silicic acid, fatty acids, fatty acid amines, fatty acid
monoglycerides and diglycerides, pentaerythritol fatty acid esters,
polyoxyethylene, hydroxymethylcellulose and polyvinylpyrrolidone.
Similarly, the carrier or diluent may include any sustained release
material known in the art, such as glyceryl monostearate or
glyceryl distearate, alone or mixed with a wax. The formulations
may also include wetting agents, emulsifying and suspending agents,
preserving agents, sweetening agents or flavouring agents. The
formulations of the invention may be formulated so as to provide
quick, sustained, or delayed release of the active ingredient after
administration to the patient by employing procedures well known in
the art.
[0418] The pharmaceutical compositions can be sterilized and mixed,
if desired, with auxiliary agents, emulsifiers, salt for
influencing osmotic pressure, buffers and/or colouring substances
and the like, which do not deleteriously react with the active
compounds.
[0419] The route of administration may be any route, which
effectively transports the active compound of the invention which
inhibits the enzymatic activity of DPP-IV to the appropriate or
desired site of action, such as oral, nasal, pulmonary, buccal,
subdermal, intradermal, transdermal or parenteral e.g. rectal,
depot, subcutaneous, intravenous, intraurethral, intramuscular,
intranasal, ophthalmic solution or an ointment, the oral route
being preferred.
[0420] If a solid carrier is used for oral administration, the
preparation may be tabletted, placed in a hard gelatin capsule in
powder or pellet form or it can be in the form of a troche or
lozenge. If a liquid carrier is used, the preparation may be in the
form of a syrup, emulsion, soft gelatin capsule or sterile
injectable liquid such as an aqueous or non-aqueous liquid
suspension or solution.
[0421] For nasal administration, the preparation may contain a
compound of the invention which inhibits the enzymatic activity of
DPP-IV, dissolved or suspended in a liquid carrier, in particular
an aqueous carrier, for aerosol application. The carrier may
contain additives such as solubilizing agents, e.g. propylene
glycol, surfactants, absorption enhancers such as lecithin
(phosphatidylcholine) or cyclodextrin, or preservatives such as
parabenes.
[0422] For parenteral application, particularly suitable are
injectable solutions or suspensions, preferably aqueous solutions
with the active compound dissolved in polyhydroxylated castor
oil.
[0423] Tablets, dragees, or capsules having talc and/or a
carbohydrate carrier or binder or the like are particularly
suitable for oral application. Preferable carriers for tablets,
dragees, or capsules include lactose, corn starch, and/or potato
starch. A syrup or elixir can be used in cases where a sweetened
vehicle can be employed.
[0424] A typical tablet which may be prepared by conventional
tabletting techniques may contain:
[0425] Core
1 Core: Active compound (as free compound or salt thereof) 250 mg
Colloidal silicon dioxide (Aerosil) .RTM. 1.5 mg Cellulose,
microcryst. (Avicel) .RTM. 70 mg Modified cellulose gum (Ac-Di-Sol)
.RTM. 7.5 mg Magnesium stearate Ad. Coating: HPMC approx. 9 mg
*Mywacett 9-40 T approx. 0.9 mg *Acylated monoglyceride used as
plasticizer for film coating.
[0426] The compounds of formula I and formula II may be
administered to a mammal, especially a human in need of such
treatment, prevention, elimination, alleviation or amelioration of
the various diseases as mentioned above, e.g. metabolic disorders,
Type 2 diabetes, hyperglycemia, impaired glucose tolerance (IGT),
impaired fasting glucose (IFG), beta cell degeneration, apoptosis
of beta cells, disorders of food intake, obesity, dyslipidemia, and
functional dyspepsia, in particular irritable bowel syndrome. In
particular, the compounds of formula I or formula II are
contemplated to be useful for the prevention or treatment of Type 2
diabetes. Furthermore, the compounds of formula I or formula II may
be useful for blood glucose lowering, prevention of hyperglycemia,
delaying the progression of impaired glucose tolerance to Type 2
diabetes, delaying the progression of non-insulin requiring Type 2
diabetes to insulin requiring Type 2 diabetes, increasing the
number and/or size of beta cells in a mammalian subject, or
appetite regulation or induction of satiety. The mammal to be
treated with a compound of formula I or formula II is preferably a
human, but may also be an animal, both a domesticated animal, e.g.
household pet, and non-domesticated animal such as wildlife.
[0427] The compounds of the invention are effective over a wide
dosage range. For example, in the treatment of adult humans,
dosages from about 0.05 to about 1000 mg, preferably from about 0.1
to about 500 mg, per day may be used. A most preferable dosage is
about 0.5 mg to about 250 mg per day. In choosing a regimen for
patients it may frequently be necessary to begin with a higher
dosage and when the condition is under control to reduce the
dosage. The exact dosage will depend upon the mode of
administration, on the therapy desired, form in which administered,
the subject to be treated and the body weight of the subject to be
treated, and the preference and experience of the physician or
veterinarian in charge.
[0428] Generally, the compounds of the present invention are
dispensed in unit dosage form comprising from about 0.05 to about
1000 mg of active ingredient together with a pharmaceutically
acceptable carrier per unit dosage.
[0429] Usually, dosage forms suitable for oral, nasal, pulmonal or
transdermal administration comprise from about 0.05 mg to about
1000 mg, preferably from about 0.5 mg to about 250 mg of the
compounds admixed with a pharmaceutically acceptable carrier or
diluent.
[0430] The invention also encompasses prodrugs of a compound of the
invention which on administration undergo chemical conversion by
metabolic processes before becoming active pharmacological
substances. In general, such prodrugs will be functional
derivatives of a compound of the invention which are readily
convertible in vivo into a compound af the invention. Conventional
procedures for the selection and preparation of suitable prodrug
derivatives are described, for example, in "Design of Prodrugs",
ed. H. Bundgaard, Elsevier, 1985.
[0431] The invention also encompasses active metabolites of a
compound of the invention.
[0432] The preparation of the compounds of formula I can be done in
many ways. The starting materials are either known compounds or
compounds which may be prepared in analogy with the preparation of
similar known compounds. A particularly useful synthesis is
outlined below.
[0433] Combination Treatments
[0434] The invention furthermore relates to the use of a compound
according to the present invention for the preparation of a
medicament for use in the treatment of diabetes in a regimen which
additionally comprises treatment with another antidiabetic
agent.
[0435] In the present context the expression "antidiabetic agent"
includes compounds for the treatment and/or prophylaxis of insulin
resistance and diseases wherein insulin resistance is the
pathophysiological mechanism.
[0436] In one embodiment of this invention, the antidiabetic agent
is insulin or GLP-1 or any analogue or derivative thereof.
[0437] In another embodiment the antidiabetic agent is a
hypoglycaemic agent, preferably an oral hypoglycaemic agent.
[0438] Oral hypoglycaemic agents are preferably selected from the
group consisting of sulfonylureas, non-sulphonylurea insulin
secretagogues, biguanides, thiazolidinediones, alpha glucosidase
inhibitors, glucagon antagonists, GLP-1 agonists, potasium channel
openers, insulin sensitizers, hepatic enzyme inhibitors, glucose
uptake modulators, compounds modifying the lipid metabolism,
compounds lowering food intake, and agents acting on the
ATP-dependent potassium channel of the 1-cells.
[0439] Among the sulfonylureas, tolbutamide, glibenclamide,
glipizide and gliclazide are preferred.
[0440] Among the non-sulphonylurea insulin secretagogues,
repaglinide and nateglinide are preferred.
[0441] Among the biguanides, metformin is preferred.
[0442] Among the thiazolidinediones, troglitazone, rosiglitazone
and ciglitazone are preferred.
[0443] Among the glucosidase inhibitors, acarbose is preferred.
[0444] Among the agents acting on the ATP-dependent potassium
channel of the .beta.-cells the following are preferred:
glibenclamide, glipizide, gliclazide, repaglinide.
[0445] Examples from the literature of known compounds which are
included in formula II are listed in Table 1 along with their
Beilstein and CAS registry numbers. The synthesis methods disclosed
in these references for producing compounds of general formula II
are incorporated herein by reference.
2TABLE 1 Beilstein registry CAS registry Structure number number 6
521102 100861-48-1 7 1543395 77597-74-1 8 1685814 77597-48-9 9
1687023 77597-75-2 10 4189427 63854-31-9 11 4865281 119695-81-7 12
4865461 119695-82-8 13 5667444 87394-50-1 14 5745673 87394-64-7 15
5749933 87394-63-6 16 6510974 104813-92-5 17 6811251 18 6924778 19
7815919 20 7835655 21 7884424 22 1174841 24961-80-6 23 1235399
20367-10-6 24 4698427 110963-63-8 25 5784284 26 6066512 87233-69-0
27 7644451 28 7651816 29 7653876 30 7655222 31 7655225 32 7656178
33 7657431 34 7658569 35 7659390 36 7675354
[0446] Examples from the literature of the B-D ring systems of
compounds of formula II shown here with only methyl or amino
substituents for simplicity, includes the compounds shown in Table
2. The synthesis methods disclosed in the corresponding references
for obtaining these and structurally similar compounds are
incorporated herein by reference. These compounds will enable the
skilled person to produce derived compounds within the scope of
formula II by utilizing common general knowledge and/or the
synthesis methods disclosed above.
3TABLE 2 Structure Beilstein Number CAS number 37 1238 74195-76-9
38 4194 69557-55-7 39 5023 40 5155 101257-89-0 41 116537 55199-24-1
42 116538 35355-36-3 43 122537 44 122538 45 122542 46 127514
109510-86-3 47 506507 24659-45-8 48 509993 70786-21-9 49 510908 50
511008 35899-34-4 51 513137 6726-50-7 52 880387 19949-03-2 53
908493 54 909190 59558-44-0 55 972126 71309-37-0 56 972323
56857-06-8 57 972466 23576-87-6 58 973539 57772-01-7 59 975944 60
1072661 1194-70-3 61 1072837 1123-57-5 62 1101453 45859-46-9 63
1105223 61262-26-8 64 1105319 61262-27-9 65 1210589 56857-07-9 66
1281990 37610-98-3 67 1635988 38828-73-8 68 1636056 27866-47-3 69
1919015 33430-55-6; 33430-56-7; 33430-87-4; 33507-44-7; 56579-34-1;
56579-40-9; 56579-41-0 70 2038630 35408-32-3 71 2235602 53356-67-5
72 2239113 23288-07-5 73 2498411 74 2498412 75 2553303 1685-83-2 76
3541426 123810-45-7 77 4384604 83458-55-3 78 4668109 73627-19-7 79
4966975 81795-09-7 80 4967113 81795-08-6 81 4967423 97457-29-9 82
5239811 129441-87-0;.sup. 126575-73-3 83 5239812 126441-87-0;.sup.
126575-73-3 84 5248212 81795-10-0 85 5253837 86 5499944 107970-21-8
87 6134939 88 6193509 89 6474743 90 6474744 91 7421534 92
7914160
[0447] Methods for Measuring the Activity of Compounds Which
Inhibit the Enzymatic Activity of CD26/DPP-IV
[0448] Summary
[0449] Chemical compounds are tested for their ability to inhibit
the enzyme activity of purified CD26/DPP-IV. Briefly, the activity
of CD26/DPP-IV is measured in vitro by its ability to cleave the
synthetic substrate Gly-Pro-p-nitroanilide (Gly-Pro-pNA). Cleavage
of Gly-Pro-pNA by DPP-IV liberates the product p-nitroanilide
(pNA), whose rate of appearance is directly proportional to the
enzyme activity. Inhibition of the enzyme activity by specific
enzyme inhibitors slows down the generation of pNA. Stronger
interaction between an inhibitor and the enzyme results in a slower
rate of generation of pNA. Thus, the degree of inhibition of the
rate of accumulation of pNA is a direct measure of the strength of
enzyme inhibition. The accumulation of pNA is measured
spectrophotometrically. The inhibition constant, Ki, for each
compound is determined by incubating fixed amounts of enzyme with
several different concentrations of inhibitor and substrate.
[0450] Materials
[0451] The following reagents and cells are commercially
available:
[0452] Porcine CD26/DPP-IV (Sigma D-7052), Gly-Pro-pNA (Sigma
G0513).
[0453] Assay buffer: 50 mM Tris pH7.4, 150 mM NaCl, 0.1% Triton
X-100.
[0454] Gly-Pro-pNA cleavage-assay for CD26
[0455] The activity of purified CD26/DPP-IV is assayed in reactions
containing:
[0456] 70 .mu.l assay buffer
[0457] 10 .mu.l inhibitor or buffer
[0458] 10 .mu.l substrate (Gly-Pro-pNA from a 0.1 M stock solution
in water) or buffer
[0459] 10 .mu.l enzyme or buffer
[0460] Reactions containing identical amounts of enzyme, but
varying concentrations of inhibitor and substrate, or buffer as
control, are set up in parallel in individual wells of a 96-well
ELISA plate. The plate is incubated at 25.degree. C. and absorbance
is read at 405 nm after 60 min incubation. The inhibitor constants
are calculated by nonlinear regression hyperbolic fit and the
result is expressed as inhibition constant (Ki) in nM.
[0461] Diabetes Model
[0462] The Zucker Diabetic Fatty (ZDF) rat model can be used to
investigate the effects of the compounds of the invention on both
the treatment and prevention of diabetes as rats of this sub-strain
are initially pre-diabetic although develop severe type 2 diabetes
characterised by increased HbA1c levels over a period of 6 weeks.
The same strain can be used to predict the clinical efficacy of
other anti-diabetic drug types. For example, the model predicts the
potency and limited clinical efficacy of thiazolidinedione insulin
sensitiser compounds.
EXAMPLES
[0463] A further detailed description of the invention is given
with reference to the following examples.
[0464] Preparative HPLC (Method A1)
[0465] Column: Waters Radial compression column Prep NovaPak c18
25.times.100, plus a Waters Prep NovaPak HR c18 25.times.10
precolumn, in a Waters PrepLC 25.times.100 compression module
housing. Buffer: linear gradient 5-95% in 15 min, MeCN, 0.1% TFA,
flow rate of 15 ml/min. The pooled fractions are either evaporated
to dryness in vacuo, or evaporated in vacuo until the MeCN is
removed, and then frozen and freeze dried.
[0466] Preparative HPLC (Method A2)
[0467] Column: 1.9.times.15 cm Waters XTerra RP-18. Buffer: linear
gradient 5-95% in 15 min, MeCN, 0.1% TFA, flow rate of 15 ml/min.
The pooled fractions are either evaporated to dryness in vacuo, or
evaporated in vacuo until the MeCN is removed, and then frozen and
freeze dried.
[0468] Preparative HPLC (Method A3)
[0469] Column: Supelcosil ABZ+Plus, 25 cm.times.10 mm, 5 .mu.m.
Solvent A: 0.1% TFA/Water, solvent B: MeCN. Eluent composition: 5
min. 100% A, linear gradient 0-100% B in 7 min, 100% B in 2 min.
Flow rate 5 ml/min. The column is allowed to equilibrate for 4 min
in 100% A before the next run.
[0470] HPLC-MS (Method B)
[0471] Column: Waters Xterra MS C-18.times.3 mm id. Buffer: Linear
gradient 10% -100% in 7.5 min, MeCN, 0.01% TFA, flow rate 1.0
ml/min. Detection 210 nm (analog output from diode array detector),
MS-detection ionisation mode API-ES, scan 100-1000 amu step 0.1
amu.
[0472] HPLC-MS (Method C)
[0473] The following instrumentation was used:
[0474] Sciex API 100 Single quadropole mass spectrometer
[0475] Perkin Elmer Series 200 Quard pump
[0476] Perkin Elmer Series 200 autosampler
[0477] Applied Biosystems 785A UV detector
[0478] Sedex 55 evaporative light scattering detector
[0479] A Valco column switch with a Valco actuator controlled by
timed events from the pump.
[0480] The Sciex Sample control software running on a Macintosh
PowerPC 7200 computer was used for the instrument control and data
acquisition.
[0481] The HPLC pump was connected to four eluent reservoirs
containing:
[0482] A: Acetonitrile
[0483] B: Water
[0484] C: 0.5% TFA in water
[0485] D: 0.02 M ammonium acetate
[0486] The requirements for samples are that they contain
approximately 500 .mu.g/ml of the compound to be analysed in an
acceptable solvent such as methanol, ethanol, acetonitrile, THF,
water and mixtures thereof. (High concentrations of strongly
eluting solvents will interfere with the chromatography at low
acetonitrile concentrations.)
[0487] The analysis was performed at room temperature by injecting
20 .mu.L of the sample solution on the column, which was eluted
with a gradient of acetonitrile in either 0.05% TFA or 0.002 M
ammonium acetate. Depending on the analysis method varying elution
conditions were used.
[0488] The eluate from the column was passed through a flow
splitting T-connector, which passed approximately 20 .mu.L/min
(1/50) through approx. 1 m. 75.mu. fused silica capillary to the
API interface of API 100 spectrometer.
[0489] The remaining 1.48 ml/min (49/50) was passed through the UV
detector and to the ELS detector.
[0490] During the LC-analysis the detection data were acquired
concurrently from the mass spectrometer, the UV detector and the
ELS detector.
[0491] The LC conditions, detector settings and mass spectrometer
settings used for the different methods are given in the following
tables.
4 Column Waters Symmetry C.sub.18 3 mm .times. 150 mm Gradient
5%-90% acetonitrile in 0.05% TFA linearly during 15 min at 1 ml/min
Detection UV: 214 nm ELS: 40.degree. C. MS Experiment: Start: 100
amu Stop: 800 amuStep: 0.2 amu Dwell: 0.571 msec Method: Scan 284
times = 9.5 mm
[0492] Analytical HPLC (Method D)
[0493] Column 2.4.times.20 cm RP18. Buffer pH=3.0
(H.sub.3PO.sub.4), Acetonitrile. Flow rate 1.0 ml/min. UV
detection. Merck Hitachi system.
General Piperazine Synthesis Procedure I
[0494] The procedure is described in Synthesis; 3; 1984; 271-274;
Synthesis; 12; 1981; 969-971. Synthesis; 10; 1982; 861-864.
Synthesis; 4; 1991; 318-319 93
[0495] Step A: Preparation of Oxazolidine-2,5-dione derivatives
[0496] The amino acid (25.6 mol) was slurried in THF (100 ml)
phosgene (20% in toluene) (3.05 g; 30.8 mmol) was added. The
reaction mixture was stirred at room temperature for 15 hours. The
reaction mixture was evaporated in vacuo. The title compound
precipitated as white crystals. The product was used without any
further purification.
[0497] Step B: Preparation of (2-Amino-propionylamino) Acetic Acid
Methyl Ester Derivatives
[0498] The above oxazolidine-2,5-dione derivative (27.1 mmol)
dissolved in THF (50 ml) was added a slurry of glycine methyl ester
hydrochloride (3.75 g; 29.9 mmol) and TEA (7.4 g; 73.3 mmol) in DCM
(50 ml) at 0.degree. C. The reaction mixture was allowed to warm up
to room temperature and was stirred for 15 hours. The mixture was
filtered (TEA,HCl) and the reminisce was evaporated in vacuo giving
an oil. The product was used without any further purification.
[0499] Step C: Preparation of Piperazine-2,5-dione Derivatives
[0500] The above (2-Amino-propionylamino) acetic acid methyl ester
derivative (28.6 mmol) was slurred in xylene (200 ml) and refluxed
(140.degree. C.) for 96 hours. A crude blackish crystalline
material was filtered of. The crystals was recrystallised from
methanol and charcoal giving the title compound as white
crystals.
[0501] Step D: Preparation of Piperazine Derivatives
[0502] The above piperazine-2,5-dione derivative (1.1 mmol) was
dissolved in THF (100 ml). LiAlH.sub.4 was added in small portions
under N.sub.2. The reaction mixture was stirred for 15 hours at
70.degree. C. Water was added dropwise until the mixture was white.
K.sub.2CO.sub.3 was added until the mixture had a filterable
consistence. The mixture was filtered evaporated in vacuo giving
the title compound as an oil.
General Piperazine Synthesis Procedure II
[0503] Step E and F are described in J.Org.Chem. 50 (24); 1985;
4796-4799 while step D is as described above. 94
[0504] Step E: Preparation of t-Boc-dipeptide Esters
[0505] The t-Boc-amino acid (9.4 mmol) was dissolved in dry DCM (25
ml) and 1-hydroxybenzotriazol (9.6 mmol) and
1-ethyl-3-(3-dimethylaminopropyl- )carbodiimide hydrochoride (9.9
mmol) were added at 0-5.degree. C. Stirring was continued for 1/2
hour after which the amino acid methyl ester hydrochloride (10.3
mmol) and TEA (10.7 mmol) were added at 0-5.degree. C. The reaction
mixture was stirred at room temperature overnight. The mixture was
poured into 0.5 M potassium hydrogensulphate (50 ml) and filtered.
The organic phase was isolated and washed with 10% aqueous sodium
hydrogencarbonate (2.times.20 ml) and brine (1.times.20 ml), dried
over magnesium sulphate and evaporated in vauco. The product was
used without further purification.
[0506] Step F: Preparation of 2,5-diketopiperazines
[0507] The t-Boc-dipeptide methyl ester (11.6 mmol) was dissolved
in formic acid (60 ml) and stirred at room temperature for 21/2
hours. The solvent was removed at 35.degree. C. under high vacuum
and the crude dipeptide ester formate was dissolved in a mixture of
dry sec-butyl alcohol (24 ml) and dry toluene (12 ml). The solution
was refluxed for 2 hours. After approx. one hour the
diketopiperazine start to crystallize out of the hot reaction. The
reaction mixture was cooled to 0-5.degree. C. and the white
crystals of diketopiperazine was isolated by filtration.
[0508] Abbreviations
5 DCM Dichloromethane DIEA Diisopropylethylamine DMF
Dimethylformamide DMSO Dimethyl sulfoxide HOAc Acetic acid MeCN
Acetonitrile TFA Trifluoroacetic acid THF Tetrahydrofurane TMG
Tetramethylguanidine
[0509] General Procedure (A) 95
[0510] Step A
[0511] 8-Chloro-1,3-dimethyl-3,7-dihydro-purine-2,6-dione (Avocado,
UK) (0.2 g; 0.93 mmol) and the arylmethylhalogenide (0.93 mmol)
K.sub.2CO.sub.3 (0.257 g; 18.6 mmol) and DMF (5 ml) is mixed in a
scintillations vessel (20 ml). The vessels are carefully sealed and
the reaction mixtures are shaken for 121 hours at 100 C..degree..
After cooling, brine (5 ml) and ethyl acetate (5 ml) is added. The
reaction mixtures are shaken for 10 hours. The ethyl acetate phase
is decanted to a new scintillations vessel. The water/DMF-phase is
then extracted with DCM (5 ml). The DCM and ethyl acetate phase are
combined and evaporated in a speedvac. The residue is used without
any purification in the next step.
[0512] Step B
[0513]
8-Chloro-7-(arylmethyl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione
derivative (50 mg, .about.0.15 mmol) is dissolved in methoxyethanol
(1 ml) in a 4 ml scintillation vessel. The piperazine derivative
(0.235 mmol), and TEA (32 mg; 43 .mu.L; 0.31 mmol) are added. The
vessels are sealed carefully and shaken for 7 days at 100
C..degree.. The reaction mixtures are evaporated in a speedvac.
Each vessel is added methanol (1 ml), and 1N HCl (0.5 ml), shaken
for 10 hours and evaporated in a speedvac. The samples are purified
by prep. HPLC (Method A1).
[0514] The purified compounds are analysed by LC-MS.
[0515] General Procedure (B) 96
[0516] R.sup.1, R.sup.3, R.sup.6, R.sup.7, X and n are defined as
in formula I.
[0517] Step A
[0518] The starting material
3-benzyl-8-bromo-3,7-dihydro-purine-2,6-dione or
3-methyl-8-bromo-3,7-dihydro-purine-2,6-dione (16 umol) is
dissolved in a mixture of DMF and DIEA (3% DIEA, 250 .mu.L).
Substituted benzyl bromide or other alkylating agents (16.8 umol,
1.05 equiv) are dissolved in DMF (100 .mu.L) and added. The mixture
is heated to 65.degree. C. for 2 h.
[0519] Step B
[0520] Alkylation reagent R.sup.6-X (32 .mu.mol) is dissolved in
DMF (100 .mu.l) and added to the above reaction mixture, followed
by a solution of TMG in DMF (1.16 ml TMG diluted to 5.8 ml, 48 ul).
The mixture is kept at 65.degree. C. for 4 h.
[0521] Step C
[0522] Diamine (200 umol) is dissolved in a mixture of DMF and DIEA
(3% DIEA, 200 .mu.L) and added to the above reaction mixture. The
reaction is kept at 65.degree. C. for 1-4 d. Samples are
neutralized using HOAc (20 .mu.l). The solvent is evaporated and
the residue is dissolved in DMSO/H.sub.2O (4:1, 500 .mu.l) and
purified by HPLC (Method A3).
[0523] General Procedure (C)
[0524] Step A
[0525] The first reaction step is identical to Step A in general
procedure (A)
[0526] Step B
[0527]
8-Chloro-7-(arylmethyl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione
derivative (1 eq.), piperazine (3 eq.) and TEA (5 eq) is heated in
an appropriate solvent in a closed vessel in a micro wave oven (CEM
MARSX microwave instrument. Magnetron frequency: 2455 MHz. Power
Output: 1200 Watt.) at 150.degree. C. for 4 hours. The reaction
mixture is cooled and evaporated in vacuo. The remaining oil is
purified on a silica gel column with DCM/MeOH (3:1) as eluent,
giving the title compound as an oil. The oil may be dissolved in
DCM to afford the hydrochloride salt upon addition of hydrochloride
in ether. Alternatively, the samples may be purified by prep. HPLC
(Method A2). The purified compounds are analysed by LC-MS.
[0528] All reactions are performed in closed vessels: XP 1500 Plus
Vessel set; at a given temperature in an appropriate solvent.
Normally solvents like MeOH; EtOH, iPrOH; H2O; DMF and DMSO are
used.
[0529] General Procedure (D)
[0530] Step A
[0531] The first reaction step is identical to Step A in general
procedure (A)
[0532] Step B
[0533]
8-Chloro-7-(arylmethyl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione
derivative (1.64 mmol), amine (2.39 mmol) and potassium carbonate
(2.4 mmol) was heated in DMF (30 ml) at 100.degree. C. for 5 hours.
The reaction mixture was cooled to room temperature and filtered.
The filtrate was evaporated to dryness in vacuo and the residue was
purified on a silica gel column (Eluent: Ethyl
acetate/Methanol/Triethylamine (90:10:2)) giving the pure base. The
hydrochloride salt may be prepared by dissolving the base in
isopropanol and adding hydrogen chloride in diethyl ether to the
solution.
[0534] General Procedure (E): Preparation of
6-substituted-[1,4]-diazepane- s 97
[0535] 1,4-Dibenzyl-[1,4]diazepane-5,7-dione is converted to the
Na-salt in THF with NaH as base, and reacted with the R.sup.3--X
alkylating reagent e.g. benzyl bromide, at room temperature. The
product e.g. 1,4,6-Tribenzyl-[1,4]diazepane-5,7-dione is reduced to
the 1,4,6-Tribenzyl-[1,4]diazepane by treatment with LiAlH4 in THF
at elevated temperature. The N-benzyl groups are removed by
catalytic hydrogenation in EtOH:AcOH (1:1), using Pd/C as
catalyst.
Example 1
7-Benzyl-8-(6-hydroxymethyl-[1,4]diazepan-1-yl)-1,3-dimethyl-3,7-dihydropu-
rine-2,6-dione. TFA
[0536] 98
[0537] Step A: Preparation of
1,4-dibenzyl-[1,4]diazepane-6-carboxylic Acid. Na-salt (1A)
[0538] N,N'-dibenzylethylenediamine (4.9 ml, 20.8 mmol) was
dissolved in toluene (200 ml), triethylamine (8.94 ml, 64.5 mmol),
and methanol (20 ml) and 3-bromo-2-bromomethylpropionic acid (5.12
g, 20.8 mmol) was added. The reaction mixture was heated to reflux
for 24 hours. The solvents were evaporated and the remaining was
redissolved in water (150 ml) and ethyl acetate (150 ml). The
aqueous layer was acidified with 6N hydrochloric acid until pH=2,
and the layers were separated. The aqueous layer was washed with
ethyl acetate and then 10% aqueous sodium hydroxide was added until
pH=12. The aqueous layer was washed with 4.times.150 ml of ethyl
acetate, and then evaporated to dryness. The remaining was
suspended in ethyl acetate (200 ml) and dry methanol (20 ml) and
salts was filtered off. The mother liquor was evaporated and
purified by chromatography on silica, using 10% methanol in
dichloromethane as the eluent. Fractions containing the product
were evaporated, to afford 5.09 g of 1A as an yellow foam in 70%
yield.
[0539] .sup.1H-NMR (CDCl.sub.3): .delta. 7.31 (10H, m); 3.78 (4H,
m); 3.18 (4H, m); 2.81 (3H, m); 2.58 (2H, m).
[0540] HPLC-MS (Method B): m/z=325 (M+1); R.sub.t=1.55 min.
[0541] Step B: Preparation of
(1,4-dibenzyl-[1,4]diazepan-6-yl)methanol (1B)
[0542] The sodium salt of 1,4-dibenzyl-[1,4]diazepane-6-carboxylic
acid (1A) (2.36 g, 6.81 mmol) was dissolved in dry tetrahydrofuran
(50 ml) under a nitrogen atmosphere and lithium aluminium hydride
(0.50 g, 13.6 mmol) was added. The reaction mixture was stirred at
room temperature for 2 hours and then quenched with water until
effervescence ceases. Ethyl acetate (200 ml) and solid potassium
carbonate was added until a white suspension appeared, and the
mixture was allowed to stir for half an hour. The suspension was
filtered through celite, which was washed with 3.times.50 ml of
ethyl acetate. Water (200 ml) was added and the aqueous layer was
extracted with 3.times.200 ml of ethyl acetate. The combined
organic layers were washed with brine and dried over sodium
sulfate. The solvent was evaporated to afford 2.06 g of 1B as an
yellow oil in 97% yield.
[0543] .sup.1H-NMR (CDCl.sub.3): .delta. 7.28 (10H, m); 3.61 (4H,
s); 3.55 (2H, d); 2.99 (2H, dd); 2.73 (2H, dd); 2.57 (4H, m); 1.93
(1H, m).
[0544] HPLC-MS (Method B): m/z=311 (M+1); R.sub.t=1.24 min.
[0545] Step C: Preparation of ([1,4]diazepan-6-yl)methanol (1C)
[0546] (1,4-Dibenzyl-[1,4]diazepan-6-yl)methanol (1B) (1.02 g, 3.28
mmol) was dissolved in ethanol (50 ml) and acetic acid (8 ml) and
palladium, 10 wt. % on activated carbon (0.2 g) was added. The
mixture was hydrogenated on a Parr apparatus at 45 psi. for 6 days,
and filtered twice. The solvents were evaporated and the crude
product was dissolved in water (2 ml) and saturated potassium
carbonate was added until pH=13. The aqueous layer was washed with
4.times.10 ml of ethyl acetate, and water was evaporated. The crude
product was purified by preparative HPLC (method A1; R.sub.t=2.27
min.) to afford 5.3 g of 1C including potassium carbonate salt.
[0547] HPLC-MS (Method B): m/z=131 (M+1); R.sub.t=0.33 min.
[0548] Step D: Preparation of
7-benzyl-8-(6-hydroxymethyl-[1,4]diazepan-1--
yl)-1,3-dimethyl-3,7-dihydropurine-2,6-dione. TFA (1)
[0549] ([1,4]Diazepan-6-yl)methanol (1C) including potassium
carbonate salts (ca 1 mmol) was suspended in dry DMF (200 ml) and
7-benzyl-8-chloro-1,3-dimethyl-3,7-dihydro-purine-2,6-dione (199.9
mg, 0.656 mmol) and potassium carbonate (453 mg, 3.28 mmol) were
added. The reaction mixture was stirred at room temperature for 24
hours, heated to 60.degree. C. for 3 hours, heated to 95.degree. C.
for 5 hours and heated to 120.degree. C. for 2 hours. The
suspension was allowed to cool to room temperature and white salts
were filtered off. The filtrate was evaporated and purified by
chromatography on silica, using 5% methanol in dichloromethane as
the eluent. Fractions containing the product were evaporated and
purified by preparative HPLC (method A2; R.sub.t=2.52 min.) to
afford 8 mg of the title compound as an yellow oil in 1% yield.
[0550] .sup.1H-NMR (MeOH-d.sub.4): .delta. 7.30 (3H, m); 7.14 (2H,
d); 5.53 (2H, s); 3.80-3.05 (16H, m); 2.09 (1H, m). HPLC-MS (Method
B): m/z=399 (M+1); R.sub.t=1.75 min.
Example 2
7-Benzyl-8-(6-hydroxy-[1,4]diazepan-1-yl)-1,3-dimethyl-3,7-dihydropurine-2-
,6-dione. TFA
[0551] 99
[0552] Step A: Preparation of 1,4-dibenzyl-[1,4]diazepan-6-ol
(2A)
[0553] N,N'-dibenzylethylenediamine (4.9 ml, 20.8 mmol) was
dissolved in toluene (200 ml), triethylamine (8.94 ml, 64.5 mmol),
and 1,3-dibromo-2-propanol (4.53 g, 20.8 mmol) was added. The
reaction mixture was heated to reflux for 4 days. The solvents were
evaporated and the remaining was redissolved in water (150 ml) and
ethyl acetate (150 ml). The aqueous layer was acidified with 6N
hydrochloric acid until pH=2, and the layers were separated. The
aqueous layer was washed with 3.times.100 ml of ethyl acetate and
the combined organic material was dried with sodium sulphate,
filtered and the solvent was evaporated. The crude product was
purified by chromatography on silica, using 5% methanol in
dichloromethane as the eluent. Fractions containing the product
were evaporated, to afford 3.59 g of 2A as an yellow oil in 59%
yield.
[0554] .sup.1H-NMR (MeOH-d.sub.4): .delta. 7.30 (10H, m); 3.81 (1H,
m); 3.67 (4H, s); 2.90 (2H, dd); 2.74-2.60 (6H, m). HPLC-MS (Method
B): m/z=297 (M+1); R.sub.t=1.49 min.
[0555] Step B: Preparation of [1,4]diazepan-6-ol. HOAc (2B)
[0556] 1,4-Dibenzyl-[1,4]diazepan-6-ol (2A) (873 mg, 2.95 mmol) was
hydrogenated for 21 days as described in example 1, step C. The
reaction mixture was filtered twice, and the solvents were
evaporated to afford 420 mg of 2B, as yellow crystals in 60%
yield.
[0557] .sup.1H-NMR (MeOH-d.sub.4): .delta. 4.07 (1H, m); 3.61 (1H,
m); 3.27-2.98 (8H, m); 1.92 (6H, s). HPLC-MS (Method B): m/z=117
(M+1); R.sub.t=0.36 min.
[0558] Step C: Preparation of
7-Benzyl-8-(6-hydroxy-[1,4]diazepan-1-yl)-1,-
3-dimethyl-3,7-dihydropurine-2,6-dione. TFA (2)
[0559] [1,4]Diazepan-6-ol acetate (2B) (116 mg, 0.49 mmol) and
7-benzyl-8-chloro-1,3-dimethyl-3,7-dihydropurine-2,6-dione (100 mg,
0.33 mmol) were dissolved in 2-propanol (20 ml) and triethylamine
(0.68 ml, 4.9 mmol) and the mixture was subjected to micro waves
(150.degree. C., 6 bar, 300 W, 8 hours). The solvents were
evaporated and the remaining was redissolved in dichloromethane (20
ml) and water (20 ml). The aqueous layer was acidified with
potassium hydrogen sulfate until pH=2. The aqueous layer was
separated and aqueous sodium hydroxide was added until pH=12. The
aqueous layer was extracted with 3.times.50 ml of dichloromethane,
and the combined organic material were added excess trifluoroacetic
acid, and evaporated, to afford 123 mg of the title compound as a
brown oil in 75% yield.
[0560] .sup.1H-NMR (MeOH-d.sub.4): .delta. 7.31 (3H, m); 7.14 (2H,
m); 5.59 (2H, s); 4.23 (1H, m); 3.27-4.02 (14H, m). HPLC-MS (Method
B): m/z=385 (M+1); R.sub.t=1.52 min.
Example 3
7-Benzyl-8-(3-hydroxymethyl-[1,4]diazepan-1-yl)-1,3-dimethyl-3,7-dihydropu-
rine-2,6-dione. TFA
[0561] 100
[0562] Step A: Preparation of
1,4-dibenzyl-[1,4]diazepane-2-carboxylic Acid Methyl Ester (3A)
[0563] N,N'-Dibenzylpropane-1,3-diamine (Sandstroem, J. et al,
Tetrahedron; EN; 34; 1978; 371-378) (2.0 g, 7.86 mmol), methyl
2,3-dibromopropionate (1.28 ml, 7.86 mmol), and potassium carbonate
(2.17 g, 15.72 mmol) were dissolved in dry dimethylformamide (125
ml) and methanol (20 ml) and the mixture was heated to reflux for 6
days. The reaction mixture was allowed to cool to room temperature
and water (200 ml) and ethyl acetate (200 ml) were added. The
aqueous layer was extracted with 2.times.200 ml of ethyl acetate,
and the combined organic layers were dried with sodium sulfate,
filtered and the solvent was evaporated. The crude product was
purified by chromatography on silica, using a mixture of ethyl
acetate and heptane 1:6 as the eluent. Fractions containing the
product were evaporated, to afford 180 mg of 3A as an clear oil in
7% yield.
[0564] .sup.1H-NMR (CDCl.sub.3): .delta. 7.29 (10H, m); 3.71 (3H,
s); 3.62 (4H, s); 3.33-2.51 (7H, m); 1.74 (2H, m). HPLC-MS (Method
B): m/z=339 (M+1); R.sub.t=2.76 min.
[0565] Step B: Preparation of
(1,4-dibenzyl-[1,4]diazepan-2-yl)-methanol (3B)
[0566] 1,4-Dibenzyl-[1,4]diazepane-2-carboxylic acid methyl ester
(3A) (180 mg, 0.53 mmol) was reduced and purified by the method
described in example 1, step B, to afford 169 mg of 3B as an yellow
oil in 100% yield.
[0567] .sup.1H-NMR (CDCl.sub.3): .delta. 7.31 (10H, m); 3.87 (2H,
dd); 3.62 (2H, s); 3.43 (2H, d); 3.03-2.43 (7H, m); 1.74 (2H, m).
HPLC-MS (Method B): m/z=311 (M+1); R.sub.t=1.54 min.
[0568] Step C: Preparation of ([1,4]diazepan-2-yl)methanol. HOAc
(3C)
[0569] (1,4-Dibenzyl-[1,4]diazepan-2-yl)methanol was hydrogenated
for 20 days as described in example 1, step C. The reaction mixture
was filtered twice, and the solvents were evaporated. The crude
product was crystallized from dry dichloromethane and diethyl ether
to afford 62 mg of 3C, as white crystals in 46% yield.
[0570] .sup.1H-NMR (MeOH-d4): .delta. 3.65-2.80 (9H, m); 1.93 (9H,
s); 1.27 (2H, m). HPLC-MS (Method B): m/z=131 (M+1); R.sub.t=0.29
min.
[0571] Step D: Preparation of
7-benzyl-8-(3-hydroxymethyl-[1,4]diazepan-1--
yl)-1,3-dimethyl-3,7-dihydropurine-2,6-dione. TFA (3)
[0572] ([1,4]Diazepan-2-yl)methanol acetate (3C) (62 mg, 0.25 mmol)
and 7-benzyl-8-chloro-1,3-dimethyl-3,7-dihydropurine-2,6-dione
(50.3 mg, 0.17 mmol) was subjected to micro waves (150.degree. C.,
11 bar, 300 W, 12 hours) as described in example 2, step C. The
solvents were evaporated and the crude product was purified by
preparative HPLC (method A2; R.sub.t=6.90 min.) to afford 8 mg of
the title compound as an yellow oil in 12% yield.
[0573] HPLC-MS (Method B): m/z=399 (M+1); R.sub.t=1.78 min.
Example 4 (General Procedure (A))
7-Benzyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-dione.
TFA
[0574] 101
[0575] Step A: Preparation of
7-benzyl-8-chloro-1,3-dimethyl-3,7-dihydro-p- urine-2,6-dione
(4A)
[0576] 8-Chloro-1,3-dimethyl-3,7-dihydro-purine-2,6-dione (2.0 g,
9.3 mmol) was dissolved in DMF (50 ml) K.sub.2CO.sub.3 (2.57 g,
18.6 mmol) and benzyl bromide (1.75 g, 10.3 mmol) were added and
the reaction mixture was stirred for 15 hours at room temperature.
The reaction mixture was evaporated in vacuo the residue was
dissolved in DCM:H.sub.2O (1:1) (100 ml) the water phase was
extracted with DCM (50 ml) the combined organic phase was dried
with MgSO.sub.4 filtered and evaporation gave 4A as a white
crystalline compound. Yield: 2.92 g. Mp: 145.7-147.1.degree. C.
[0577] .sup.1H-NMR (CDCl.sub.3): .delta. 7.2-7.4 (m, 5H); 5.15 (s,
2H); 3.55 (s, 3H); 3.4 (s, 3H).
[0578] .sup.13C-NMR (CDCl.sub.3): .delta. 154.8. 151.6; 147.7;
139.1; 135.3; 129.3; 128.9; 128.4; 108.1; 49.6; 30.2; 28.5.HPLC-MS
(Method B): M+1=305; R.sub.t=1.9 min.
[0579] HPLC (Method D; MeCN: buffer 1:1) R.sub.t=7.19 min;
purity>99%.
[0580] Step B: Preparation of
4-(7-Benzyl-1,3-dimethyl-2,6-dioxo-2,3,4,5-t-
etrahydro-1H-purine-8-yl)-piperazine-1-carboxylic acid
tert-butylate (4B)
[0581] 7-Benzyl-8-chloro-1,3-dimethyl-3,7-dihydro-purine-2,6-dione
(4A) (1.0 g, 3.3 mmol) was dissolved in ethanol (30 ml)
piperazine-1-carboxylic acid tert-butylate (0.73 g, 3.9 mmol) and
TEA (0.66 g, 0.1 ml, 6.6 mmol) were added and the reaction mixture
was heated for 72 hours at 120 C..degree. in a sealed vessel. The
reaction mixture was evaporated and the remaining oil was purified
on a silica gel column using (DCM, MeOH) (39:1) as eluent giving
0.93 g of 4B as a yellow oil. Yield: 62%.
[0582] HPLC (Method D; MeCN: buffer 1:1) R.sub.t=13.15 min;
purity>96%.
[0583] R.sub.t=13.15 min. >96% purity (Method D: MeCN: buffer
(1:1) pH=3 H.sub.3PO.sub.4)
[0584] .sup.1H-NMR (CDCl.sub.3): .delta. 7.2-7.3 (m, 5H); 5.4 (s,
2H); 3.5 (s, 3H); 3.45 (m, 4H); 3.35 (s, 3H); 3.1 (m, 4H); 1.5 (s,
9H).
[0585] .sup.13C-NMR (CDCl.sub.3): .delta. 155.0; 156.4; 151.9;
154.8; 147.8; 136.9; 129.1; 128.8; 128.2; 127.1; 105.3; 80.4; 50.6;
48.9; 43.3 (broad); 30.0; 28.7; 28.1.
[0586] Step C: Preparation of
4-(7-Benzyl-1,3-dimethyl-8-piperazin-1-yl-3,-
7-dihydropurine-2,6-dione. TFA (4)
[0587]
4-(7-Benzyl-1,3-dimethyl-2,6-dioxo-2,3,4,5-tetrahydro-1H-purine-8-y-
l)-piperazine-1-carboxylic acid tert-butylate (4B) (188 mg, 0.41
mmol) was dissolved in TFA (10 ml). The reaction mixture was
stirred at room temperature for 2 hours. The mixture was evaporated
in vacuo. The remaining oil was crystallised from acetone/ether.
The title compound was isolated as the white TFA salt 170 mg.
Yield: 89%. Mp: 217-19C..degree. decomposes.
[0588] HPLC (Method D; MeCN: buffer 1:1) R.sub.t=2.98 min; purity
>99%.
[0589] .sup.1H-NMR (CDCl.sub.3): .delta. 7.15-7.4 (m, 5H); 5.4 (s,
2H); 3.45 (s, 3H); 3.4 (broad d, 2H); 3.15 (broad d, 2H); 3.05 (s,
3H). HPLC-MS (Method B): m/z=355 (M+1); R.sub.t=1.699 min; TIC
area=100%
Example 5 (General Procedure (A))
1,3-Dimethyl-7-(4-methylbenzyl)-8-piperazin-1-yl-3,7-dihydropurine-2,6-dio-
ne. HCl
[0590] 102
[0591] HPLC-MS (Method C) m/z=369 (M+1); R.sub.t=1.319 min.
Example 6 (General Procedure (A))
3-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7-ylmet-
hyl) benzonitrile. TFA
[0592] 103
[0593] HPLC-MS (Method C) m/z=380 (M+1); R.sub.t=1.22 min.
Example 7 (General Procedure (A))
2-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7-ylmet-
hyl) benzonitrile. TFA
[0594] 104
[0595] HPLC-MS (Method C) m/z=380 (M+1); R.sub.t=1.18 min.
Example 8 (General Procedure (A))
[0596]
1,3-Dimethyl-7-(1-phenylethyl)-8-piperazin-1-yl-3,7-dihydropurine-2-
,6-dione. TFA 105
[0597] HPLC-MS (Method C) m/z 369 (M+1); R.sub.t=2.47 min
Example 9 (General Procedure (A))
7-(2-Iodobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-dione-
. TFA
[0598] 106
[0599] HPLC-MS (Method C) m/z=481 (M+1); R.sub.t=1.43 min.
Example 10 (General Procedure (A))
[0600]
1,3-Dimethyl-8-piperazin-1-yl-7-(2-trifluoromethylbenzyl)-3,7-dihyd-
ropurine-2,6-dione. TFA 107
[0601] HPLC-MS (Method C) m/z=423 (M+1); R.sub.t=1.44 min.
Example 11 (General Procedure (A))
1,3-Dimethyl-7-naphthalen-1-ylmethyl-8-piperazin-1-yl-3,7-dihydropurine-2,-
6-dione. TFA
[0602] 108
[0603] HPLC-MS (Method C) m/z=405 (M+1); R.sub.t=1.55 min.
Example 12 (General Procedure (A))
1,3-Dimethyl-7-naphthalen-2-ylmethyl-8-piperazin-1-yl-3,7-dihydropurine-2,-
6-dione. TFA
[0604] 109
[0605] HPLC-MS (Method C) m/z=405 (M+1); R.sub.t=1.51 min.
Example 13 (General Procedure (A))
7-(3-Bromobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-dion-
e. TFA
[0606] 110
[0607] HPLC-MS (Method C) m/z=434 (M+1); R.sub.t=1.33 min.
Example 14 (General Procedure (A))
7-Benzyl-8-(3-isopropylpiperazin-1-yl)-1,3-dimethyl-3,7-dihydropurine-2,6--
dione. HCl
[0608] 111
[0609] The piperazine moiety was prepared according to the general
procedure for preparation of piperazine derivatives.
[0610] .sup.1H-NMR (CDCl.sub.3): .delta. 7.1-7.4 (m; 5H); 5.4 (s;
2H); 3.55 (s; 3H); 3.35 (s; 3H); 3.3 (s br; 1H); 2.9-3.05 (m; 3H);
2.65 (t; 1H); 2.45 (dt, 1H); 2.1 (s br; 1H); 1.5 (p; 1H); 0.9 (d;
3H); 0.75 (d; 3H). .sup.13C-NMR (CDCl.sub.3): .delta. 157.17;
154.98; 152.12; 148.16; 137.12; 129.15; 128.07; 126.94; 105.33;
60.88; 54.64; 51.04; 49.06; 45.90; 31.42; 30.12; 28.17; 19.21;
19.03.
Example 15 (General Procedure (C))
7-Benzyl-8-[1,4]diazepan-1-yl-1,3-dimethyl-3,7-dihydro-purine-2,6-dione.
TFA
[0611] 112
[0612] HPLC-MS (Method B): m/z=369; R.sub.t=1.75 min. TIC
area=100%
Example 16 (General Procedure (C))
1,3-Dimethyl-7-(2-oxo-2-pyrrolidin-1-yl-ethyl)-8-piperazin-1-yl-3,7-dihydr-
o-purine-2,6-dione. HCl
[0613] 113
[0614] HPLC-MS (Method B): m/z=376; R.sub.t=2.86 min.+0.47 min;
Area: 47+53%
Example 17 (General Procedure (C))
2-(8-[1,4]Diazepan-1-yl-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-purin-7--
ylmethyl)-benzonitrile. HCl
[0615] 114
[0616] Step A
[0617]
2-(8-Chloro-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropurin-7-ylmeth-
yl) benzonitrile (0.5 g, 1.5 mmol) and homopiperazine (0.45 g, 4.5
mmol) and TEA (0.77 ml; 7.5 mmol) was heated in 2-propanol in a
closed vessel in a micro wave oven at 150.degree. C. for 4 hours.
The reaction mixture was evaporated in vacuo. The remaining oil was
purified on a silica gel column with DCM/MeOH (3:1) as eluent,
giving the title compound as an oil. The oil was dissolved in DCM
(3 ml) and hydrochloride in ether was added. Yield 632 mg white
crystals. Mp: 160.8-162.3.degree. C.
[0618] .sup.1H-NMR (MeOH-d.sub.4): .delta. 7.75 (dd; 1H); 7.65 (dt;
1H); 7.4 (t; 1H); 7.1 (d; 1H); 5.65 (s; 2H); 3.55-3.65 (s; 2H); 3.5
(s; 3H); 3.2 (s; 3H); 3.1 (t; 2H); 2.9 (t; 2H); 1.9 (t,t; 2H).
Example 18 (General Procedure (C))
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1,3-dimethyl-3,7-dihydro-purine-2,6-
-dione. HCl
[0619] 115
[0620] .sup.1H-NMR (CDCl.sub.3): .delta. 7.85 (d; 1H); 7.25 (t;
1H); 6.95 (t; 1H); 5.45 (s; 2H); 3.55 (s; 3H); 3.35-3.5 (m; 2H);
3.35 (s; 3H); 2.7-3.1 (m; 6H); 1.75 (m; 2H).
Example 19 (General Procedure (A))
7-(2-Difluoromethoxy-benzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydro-pur-
ine-2,6-dione. TFA
[0621] 116
[0622] HPLC-MS (Method B): m/z=421; R.sub.t=3.72 min. area:100%
Example 20 (General Procedure (A))
7-(2,3-Dimethoxy-benzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydro-purine--
2,6-dione. TFA
[0623] 117
[0624] HPLC-MS (Method B): m/z=415; R.sub.t=3.65 min. area:
100%.
Example 21 (General Procedure (A))
1,3-Dimethyl-8-piperazin-1-yl-7-(2-trifluoromethoxy-benzyl)-3,7-dihydro-pu-
rine-2,6-dione. TFA
[0625] 118
[0626] HPLC-MS (Method B): m/z=439; R.sub.t=2.75min. area 99%
Example 22 (General Procedure (A))
1,3-Dimethyl-8-piperazin-1-yl-7-(2-trifluoromethylsulfanyl-benzyl)-3,7-dih-
ydro-purine-2,6-dione. TFA
[0627] 119
[0628] HPLC-MS (Method B): m/z=455; R.sub.t=4.17 min. area 99%
Example 23 (General Procedure (A))
4-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydro-purin-7-yl)--
butyronitrile. TFA
[0629] 120
[0630] HPLC-MS (Method B): m/z=332; R.sub.t=2.45 min. area
99.7%
Example 24 (General Procedure (A))
(R)-7-Benzyl-8-(3-isopropylpiperazin-1-yl)-1,3-dimethyl-3,7-dihydropurine--
2,6-dione. TFA
[0631] 121
[0632] The piperazine moiety was prepared according to the general
procedure for preparation of piperazine derivatives.
[0633] .sup.1H-NMR (CDCl.sub.3): .delta. 7.2-7.35 (m; 3H) 7.15 (dd;
2H); 5.4 (s; 2H); 3.6 (s; 3H); 3.35 (s; 3H); 3.3 (m; 5H); 3.1 (m;
2H); 1.8 (p; 1H); 0.9 (d; 3H); 0.75 (d; 3H). HPLC-MS (Method B):
m/z=397 (M+1); R.sub.t=2.06 min.
Example 25 (General Procedure (A))
(S)-7-Benzyl-8-(3-isopropylpiperazin-1-yl)-1,3-dimethyl-3,7-dihydropurine--
2,6-dione. TFA
[0634] 122
[0635] .sup.1H-NMR (CDCl.sub.3): .delta. 11.4 (broad s; 2.5H);
7.25-7.4 (m; 3H); 7.15 (dd; 2H); 5.4 (s; 2H); 3.6 (s; 3H); 3.25-3.5
(m; 7H); 3.0-3.2 (m; 2H); 1.8 (p; 1H); 0.85 (d; 3H); 0.7 (d; 3H).
HPLC-MS (Method B): m/z=397 (M+1); R.sub.t=2.09 min.
Example 26 (General Procedure (A))
7-Benzyl-8-(6,9-diazaspiro[4.5]dec-9-yl)-1,3-dimethyl-3,7-dihydropurine-2,-
6-dione. TFA
[0636] 123
[0637] The piperazine moiety was prepared according to the general
procedure for preparation of piperazine derivatives.
[0638] .sup.1H-NMR (CDCl.sub.3): .delta. 10.0 (broad s; 2H); 8.9
(broad s, 2H); 7.25-7.4 (m, 3H); 7.1 (d, 2H); 5.4 (s; 2H); 3.55 (s;
3H); 3.35-3.4 (m; 5H); 3.1-3.3 (m; 4H); 1.6-1.85 (m; 6H); 1.3 (m;
2H).
[0639] HPLC-MS (Method B): m/z=409 (M+1); R.sub.t=2.11 min.
Example 27 (General Procedure (A))
7-Benzyl-8-(piperazin-3-spiro-3'-bicyclo[2,2,1]heptane-1-yl)-1,3-dimethyl--
3,7-dihydropurine-2,6-dione. TFA
[0640] 124
[0641] The piperazine moiety was prepared according to the general
procedure for preparation of piperazine derivatives.
[0642] .sup.1H-NMR (CDCl.sub.3): .delta. 11.1 (broad s; 1H); 8.9
(broad s; 1H); 7.25-7.4 (m; 3H); 7.1 (dd; 2H); 5.45 (s; 2H); 3.5
(s; 3H); 3.15-3.4 (m; 9H); 2.2-2.3 (d; 2H); 1.1-1.6 (m; 7H); 0.9
(d; 1H).
[0643] HPLC-MS (Method B): m/z=435 (M+1); R.sub.t=2.34 min.
Example 28 (General Procedure (A))
8-[1,4]Diazepan-1-yl-7-(2-methoxy-benzyl)-1,3-dimethyl-3,7-dihydro-purine--
2,6-dione. TFA
[0644] 125
[0645] HPLC-MS (Method B): m/z=399; R.sub.t=1.93 min. UV
area=98.63%
Example 29 (General Procedure (A))
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-naphthalen-1-ylmethyl-3,7-dihydro-puri-
ne-2,6-dione. TFA
[0646] 126
[0647] HPLC-MS (Method B): m/z=419; R.sub.t=2.26 min. UV
area=99.7%.
Example 30 (General Procedure (A))
8-[1,4]Diazepan-1-yl-7-(2-fluoro-benzyl)-1,3-dimethyl-3,7-dihydro-purine-2-
,6-dione. TFA
[0648] 127
[0649] HPLC-MS (Method B): m/z=387; R.sub.t=1.86 min. UV
area=94.4%.
Example 31 (General Procedure (A))
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-methyl-benzyl)-3,7-dihydro-purine-2-
,6-dione. TFA
[0650] 128
[0651] HPLC-MS (Method B): m/z=383 (M+1); R.sub.t=1.99 min. UV
area=97.68%.
Example 32 (General Procedure (A))
7-(2-Chloro-benzyl)-8-[1,4]diazepan-1-yl-1,3-dimethyl-3,7-dihydro-purine-2-
,6-dione. TFA
[0652] 129
[0653] HPLC-MS (Method B): m/z=403; 405; 406; (M+1); R.sub.t=1.97
min. UV area=98.93.
Example 33 (General Procedure (A))
7-(2-Bromo-benzyl)-8-[1,4]diazepan-1-yl-1,3-dimethyl-3,7-dihydro-purine-2,-
6-dione. TFA
[0654] 130
[0655] HPLC-MS (Method B): m/z=447; 450; (M+1); R.sub.t=2.09 min.
UV area=98.51.
Example 34 (General Procedure (A))
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-trifluoromethyl-benzyl)-3,7-dihydro-
-purine-2,6-dione. TFA
[0656] 131
[0657] HPLC-MS (Method B): m/z=437 (M+1); R.sub.t=2.20 min. UV
area=99.50%.
Example 35 (General Procedure (A))
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-nitro-benzyl)-3,7-dihydro-purine-2,-
6-dione. HCl
[0658] 132
[0659] HPLC-MS (Method B): m/z=437 (M+23); R.sub.t=2.23 min. UV
area=100%.
Example 36 (General Procedure (B))
3-Benzyl-8-piperazin-1-yl-7-(2-trifluoromethyl-benzyl)-3,7-dihydro-purine--
2,6-dione. TFA
[0660] 133
[0661] .sup.1H-NMR (DMSO-d.sub.6): .delta. 11.12 (s, 1H); 8.83 (s,
1H); 7.86-7.71 (d, 2H); 7.71-7.45 (m, 2H); 7.45-7.23 (m, 5 H);
7.08-6.98 (d, 1 H); 5.48 (s, 1H); 5.10 (s, 1H); 3.34-3.01 (m,
4H)
Example 37 (General Procedure (B))
3,7-Dibenzyl-1-(2-hydroxy-ethyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-d-
ione. TFA
[0662] 134
[0663] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.86 (s br, 2H);
7.40-7.18 (m, 10H); 5.41 (s, 2H); 5.13 (s, 2H); 3.93 (t,2H); 3.45
(t,2H); 3.31 (s br, 4H); 3.19 (s br,4H).
Example 38 (General Procedure (B))
3-Benzyl-7-phenethyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione.
TFA
[0664] 135
[0665] .sup.1H-NMR (DMSO-d.sub.6): .delta. 11.11 (s, 1H); 8.79 (s
br, 2H); 7.40-7.05 (m, 10H); 5.02 (s, 2H); 4.30 (t, 2H); 3.09 (s
br, 8H); 3.03 (t, 2H).
Example 39 (General Procedure (B))
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-3,7-dihydro-purine-2,6-dione.
TFA
[0666] 136
[0667] .sup.1H-NMR (DMSO-d.sub.6): .delta. 7.67-6.92 (m, 10H); 5.42
(s.2H); 5.04 (s, 2H); 3.89-3.35 (m, 5H); 2.96-2.35 (m, 5H); 1.68
(s, 2H). HPLC-MS m/z=431
Example 40 (General Procedure (B))
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-purine-2,6-dione.
TFA
[0668] 137
[0669] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.89 (s, 1H); 9.19 (s,
2H); 7.46-7.00 (m, 5H) 5.42 (s, 2H) 3.67 (s br,2H); 3.53-3.40 (m,
2H); 3.32 (s, 3H); 3.23 (s br,2H); 3.14 (s, 2H); 2.00 (m, 2H)
HPLC-MS m/z=355
Example 41 (General Procedure (B))
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-1-propyl-3,7-dihydro-purine-2,6-dione.
TFA
[0670] 138
[0671] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.67 (s br,2H);
7.45-7.06 (m, 10H); 5.46 (s, 2H) 5.12 (s, 2H) 3.79 (t,2H); 3.67 (m,
2H); 3.50 (m, 2H); 3.27 (s br,2H) 3.16 (s br, 2H); 1.98 (m, 2H);
1.52 (m, 2H); 0.81 (t,3H).
Example 42 (General Procedure (B))
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-1-(2-hydroxy-ethyl)-3,7-dihydro-purine-2-
,6-dione. TFA
[0672] 139
[0673] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.79 (s, 2H); 7.41-7,22
(m, 8H); 7.20-7.07 (m, 2H); 5.47 (s, 2H); 5.12 (s, 2H); 4.00-3.86
(t, 2H); 3.73-3.61 (m, 2 H); 3.54-3.40 (m, 4H) 3.27 (s, 2H); 3,15
(s, 2H) 1.98 (s, 2H)
Example 43 (General Procedure (B))
2-(3,7-Dibenzyl-8-[1,4]diazepan-1-yl-2,6-dioxo-2,3,6,7-tetrahydro-purin-1--
yl)-N,N-diethyl-acetamide
[0674] 140
[0675] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.67 (s br,2H);
7.41-7.20 (m, 8H); 7.16-7.03 (m, 2H); 5.47 (s, 2H); 5.13 (s, 2H);
4.64 (s, 2H); 3.69 (s br, 2H); 3.51 (t.2H) 3.44-3.10 (m, 7H); 2.67
(s, 1H); 1.98 (s br, 2H); 1.16 (t, 3H) 0.99 (t, 3H)
Example 44 (General Procedure (B))
1,3,7-Tribenzyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione.
TFA
[0676] 141
[0677] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.83 (s br, 2H);
7.48-7.16 (m, 15H); 5.40 (s, 2H); 5.14 (s, 2H); 5.02 (s, 2H); 3.20
(s br, 4H).
Example 45 (General Procedure (B))
1,3,7-Tribenzyl-8-[1,4]diazepan-1-yl-3,7-dihydro-purine-2,6-dione.
TFA
[0678] 142
[0679] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.76 (s br, 2H);
7.58-7.04 (m, 15H); 5.48 (s, 2H) 5.13 (s, 2H); 5.03 (s, 2H); 3.70
(s br,2H); 3.52 (t,2H); 3.29 (s br, 2H); 3.17 (s br,2H); 1.99 (s
br, 2H)
Example 46 (General Procedure (A))
(S)-7-Benzyl-8-(3-benzyloxymethylpiperazin-1-yl)-1,3-dimethyl-3,7-dihydrop-
urine-2,6-dione
[0680] 143
[0681] The piperazine moiety was prepared according to the general
procedure for preparation of piperazine derivatives.
[0682] .sup.1H-NMR (CDCl.sub.3): .delta. 7.1-7.45 (m; 5H); 5.35 (s
br; 2H); 4.5 (s; 2H); 3.5 (s; 3H); 3.35 (s; 3H); 3.2-3.0 (m; 3H);
2.7-3.1 (m; 5H); 2.25 (s br; 1H). .sup.13C-NMR (CDCl.sub.3):
.delta. 156.92; 155.07; 152.11; 148.12; 138.22; 137.08; 129.16;
128.85; 128.22; 128.19; 128.15; 127.21; 105.35; 73.89; 72.07;
54.65; 53.89; 53.30; 51.41; 49.11; 45.14; 30.14; 28.22.
Example 47 (General Procedure (B))
3,7-Dibenzyl-8-piperazin-1-yl-1-propyl-3,7-dihydro-purine-2,6-dione.
TFA
[0683] 144
[0684] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.95 (s br, 2H);
7.40-7.20 m, 10 H); 5.40 (s, 2H); 5.13 (s, 2H); 3.79 (t, 2H); 3.32
(m, 4H); 3.20 (m, 4H); 1.50 (sextet, 2H); 0.81 (t, 3H). HPLC-MS
(Method C): m/z=459 (M+1); R.sub.t=4.62 min
Example 48 (General Procedure (B))
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-1-propyl-3,7-dihydro-purine-2,6-dione.
TFA
[0685] 145
[0686] HPLC-MS (Method C): m/z=473 (M+1); R.sub.t=4.72 min
Example 49 (General Procedure (B))
3,7-Dibenzyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione. TFA
[0687] 146
[0688] .sup.1H-NMR (DMSO-d.sub.6): .delta. 11.05 (s, 1H); 8.72 (s,
br 2H); 7.40-7.20 (m, 10H); 5.37 (s, 2H); 5.07 (s, 2H). HPLC-MS
(Method C): m/z=417 (M+1); R.sub.t=3.69 min
Example 50 (General Procedure (B))
3,7-Dibenzyl-8-[1,4]diazepan-1-yl-3,7-dihydro-purine-2,6-dione.
TFA
[0689] 147
[0690] DMSO d6 d=10.90 (s, 1H); 8.65 (s br, 2H); 7.40-7.20 (m, 8H);
7.14 (d, 2H); 5.43 (s, 2H); 5.06 (s, 2H); 3.65 (m, 2H); 3.48 (m,
2H); 3.26 (m, 2H); 3.16 (s br, 2H); 1.97 (m, 2H)
[0691] HPLC-MS (Method C): m/z=431 (M+1); R.sub.t=3.83 min
Example 51 (General Procedure (B))
2-(3-Benzyl-2,6-dioxo-8-piperazin-1-yl-1-propyl-1,2,3,6-tetrahydro-purin-7-
-ylmethyl)-benzonitrile
[0692] 148
[0693] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.73 (s br, 2H); 7.88
(d, 1H); 7.64 (t, 1H); 7.49 (t, 1H); 7.42-7.25 (m, 5H); 7.15 (d,
1H); 5.56 (s, 2H); 3.73 (t, 2H); 1.46 (q, 2H); 0.77 (t, 3H).
HPLC-MS (Method C): m/z=484 (M+1); R.sub.t=4.56 min
Example 52 (General Procedure (B))
2-(3-Benzyl-8-[1,4]diazepan-1-yl-2,6-dioxo-1-propyl-1,2,3,6-tetrahydro-pur-
in-7-ylmethyl)-benzonitrile
[0694] 149
[0695] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.66 (s br, 2H); 7.89
(d, 1H); 7.65 (t, 1H); 7.52 (t, 1H); 7.42-7.10 (m, 5H); 7.12 (d,
1H); 5.59 (s, 2H); 5.14 (s, 2H); 3.78-3.65 (m, 4H); 3.48 (t, 2H);
3.31 (s br, 2H); 3.19 (s br, 2H); 2.00 (m 2H); 1.45 (q, 2H); 0.77
(t, 3H).
Example 53 (General Procedure (B))
2-(3-Benzyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydro-purin-7-ylmethyl-
)-benzonitrile
[0696] 150
[0697] .sup.1H-NMR (DMSO-d.sub.6): .delta. 11.02 (s, 1H); 8.73 (s
br 2H); 7.88 (d, 1H); 7.66 (t, 1H); 7.50 (t, H); 7.40-7.25 (m, 5H);
7.16 (d, 1H); 5.53 (s, 2H); 5.08 (s, 2H); 3.38 (s br, 4H); 3.20 (s
br, 4H)
Example 54 (General Procedure (B))
2-(3-Benzyl-8-[1,4]diazepan-1-yl-2,6-dioxo-1,2,3,6-tetrahydro-purin-7-ylme-
thyl)-benzonitrile
[0698] 151
[0699] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.90 (s, 1H); 8.67 (s
br, 1H); 7.89 (d, 1H); 7.67 (t, 1H); 7.51 (t, 1H); 7.44-7.25 (m,
5H); 7.12 (d, 1H); 5.56 (s, 2H); 5.07 (s, 2H); 3.68 (m, 2H); 3.46
(m, 2H); 3.36 (s br, 2H); 3.19 (s br, 2H); 1.89 (m, 2H).
Example 55 (General Procedure (B))
3-Benzyl-7-(2-iodo-benzyl)-8-piperazin-1-yl-1-propyl-3,7-dihydro-purine-2,-
6-dione. TFA
[0700] 152
[0701] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.71 (s br, 2H); 7.93 (d
1H); 7.42-7.25 (m, 6H); 7.09 (d, 1H); 6.8 (d, 1H); 5.28 (s, 2H);
5.17 (s, 2H); 3.75 (t, 2H); 3.16 (s br 4H); 1.48 (q, 2H); 0.79 (t,
3H).
Example 56 (General Procedure (B))
3-Benzyl-8-[1,4]diazepan-1-yl-7-(2-iodo-benzyl)-1-propyl-3,7-dihydro-purin-
e-2,6-dione. TFA
[0702] 153
[0703] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.64 (s br, 2H); 7.93
(d, 1H); 7.44-7.25 (m, 6H); 7.09 (t, 1H); 6.76 (d, 1H); 5.29 (s,
2H); 5.16 (s, 2H); 3.75 (t, 2H); 3.67 (m, 2H); 3.41 (m, 2H); 3.16
(m, 2H); 1.95 (m, 2H); 1.49 (q, 2H); 0.80 (t, 3H). HPLC-MS (Method
C): m/z=599 (M+1); R.sub.t=4.96 min
Example 57 (General Procedure (B))
3-Benzyl-7-(2-iodo-benzyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione.
TFA
[0704] 154
[0705] .sup.1H-NMR (DMSO-d.sub.6): .delta. 11.03 (s, 1H); 8.71 (s
br, 1H); 7.92 (d, 1H); 7.42-7.28 (m, 6H); 7.08 (d, 1H); 6.81 (d,
1H); 5.26 (s, 2H); 5.10 (s, 2H); 3.15 (s br 4H).
Example 58 (General Procedure (B))
3-Benzyl-8-[1,4]diazepan-1-yl-7-(2-iodo-benzyl)-3,7-dihydro-purine-2,6-dio-
ne. TFA
[0706] 155
[0707] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.91 (s, 1H); 8.64 (s
br, 2H); 7.93 (d, 1H); 7.44-2.25 (m, 6H); 7.09 (d, 1H); 6.75 (d,
1H); 5.27 (s, 2H); 5.09 (s, 2H); 3.65 (m, 2H); 3.39 (m, 1H);
3.30-3.22 (m, 3H); 3.15 (s br 2H); 1.94 (m, 2H).
Example 59
7-Benzyl-3-methyl-8-piperazin-1-yl-1-propyl-3,7-dihydro-purine-2,6-dione.
TFA
[0708] 156
[0709] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.77 (s br 2H);
7.37-7.25 (m, 3H); 7.21 (d, 2H); 5.40 (s, 2H); 3.80 (t, 2H); 3.21
(s br 4H); 1.53 (q, 2H); 0.83 (t, 3H).
Example 60 (General Procedure (B))
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-propyl-3,7-dihydro-purine-2,6-dio-
ne. TFA
[0710] 157
[0711] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.66 (s br, 2H);
7.40-7.25 (m, 3H); 7.12 (d, 2H); 5.46 (s, 2H); 3.80 (t, 2H); 3.66
(m, 2H); 3.50 (m, 2H); 3.28 (m, 2H); 3.17 (s br, 2H); 1.99 (m, 2H);
1.53 (q, 2H); 0.83 (t, 3H).
Example 61 (General Procedure (B))
7-Benzyl-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione.
TFA
[0712] 158
[0713] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.97 (s, 1H); 8.66 (s
br) 7.40-7.25 (m, 3H); 7.21 (d, 2H); 5.37 (s, 2H).
Example 62 (General Procedure (B))
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-purine-2,6-dione.
TFA
[0714] 159
[0715] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.84 (s, 1H); 8.61 (s
br 2H); 7.40-7.25 (m, 3H); 7.13 (d, 2H); 5.43 (s, 2H); 3.65 (m,
2H); 3.47 (m, 2H); 3.17 (m, 2H); 1.98 (m, 2H).
Example 63 (General Procedure (B))
2-(3-Methyl-2,6-dioxo-8-piperazin-1-yl-1-propyl-1,2,3,6-tetrahydro-purin-7-
-ylmethyl)-benzonitrile
[0716] 160
[0717] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.78 (s br 2H); 7.88
(d,1H); 7.63 (t, 1H); 7.49 (t, 1H); 7.08 (d, 1H); 5.55 (s, 2H);
3.73 (t, 2H); 3.22 (s br, 4H); 1.47 (q, 2H); 0.78 (t, 3H).
Example 64 (General Procedure (B))
2-(8-[1,4]Diazepan-1-yl-3-methyl-2,6-dioxo-1-propyl-1,2,3,6-tetrahydro-pur-
in-7-ylmethyl)-benzonitrile
[0718] 161
[0719] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.66 (s br, 2H); 7.89
(d, 1H); 7.65 (t, 1H); 7.50 (t, 1H); 7.06 (d, 1H); 5.58 (s, 2H);
3.73 (t, 2H); 3.69 (m, 2H); 3.47 (m, 2H); 3.42 (s, 3H); 3.21 (m,
2H); 2.00 (m, 2H); 1.48 (sextet, 2H); 0.78 (t, 3H).
Example 65 (General Procedure (B))
2-(8-[1,4]Diazepan-1-yl-3-methyl-2,6-dioxo-1,2,3,6-tetrahydro-purin-7-ylme-
thyl)-benzonitrile
[0720] 162
[0721] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.84 (s, 1H); 8.94 (s
br, 1H); 8.69 (s br, 1H); 7.89 (d, 1H); 7.66 (t, 1H); 7.50 (t, 1H);
7.06 (d, 1H); 5.56 (s, 2H); 3.68 (m, 2H); 3.46 (m, 2H); 3.42 (s,
3H).
Example 66 (General Procedure (B))
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-1-propyl-3,7-dihydro-purine-2,-
6-dione. TFA
[0722] 163
[0723] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.73 (s br, 2H); 7.92
(d, 1H); 7.33 (t, 1H); 7.07 (t, 1H); 6.70 (d, 1H); 5.28 (s, 2H);
3.75 (t, 2H); 3.44 (s, 3H); 3.17 (s br, 4H); 1.49 (sextet, 2H);
0.80 (t, 3H).
Example 67 (General Procedure (B))
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-propyl-3,7-dihydro-purin-
e-2,6-dione. TFA
[0724] 164
[0725] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.66 (s br, 2H); 7.93
(d, 1H); 7.35 (t, 1H); 7.08 (t, 1H); 6.69 (d, 1H); 5.30 (s, 2H);
3.75 (t, 2H); 3.43 (s, 3H); 3.28 (m, 2H); 3.17 (m, 2H); 1.95 (m,
2H); 1.50 (sextet, 2H); 0.81 (t, 3H).
Example 68 (General Procedure (B))
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-dione.
TFA
[0726] 165
[0727] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.96 (s, 1H); 8.72 (s
br); 7.72 (d, 1H); 7.34 (t, 1H); 7.07 (t, 1H); 6.73 (d, 1H); 5.26
(s, 2H); 3.15 (m, 4H).
Example 69 (General Procedure (B))
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-3,7-dihydro-purine-2,6-dio-
ne. TFA
[0728] 166
[0729] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.84 (s, 1H); 8.62 (s
br, 2H); 7.93 (d, 1H); 7.36 (t, 1H); 7.08 (t, 1H); 6.69 (d,1H);
5.28 (s, 2H); 3.65 (dm, 2H); 3.39 (m, 2H); 3.36 (s, 3H); 3.16 (m,
2H); 1.94 (m, 2H).
Example 70 (General Procedure (B))
3-Benzyl-8-[1,4]diazepan-1-yl-1-(3-hydroxy-propyl)-7-(2-iodo-benzyl)-3,7-d-
ihydro-purine-2,6-dione. TFA
[0730] 167
[0731] .sup.1H-NMR (DMSO-d.sub.6): .delta. (Selected peaks) 8.62 (s
br, 2H); 7.88 (d, 1H); 7.40-7.20 (m, 7H); 7.04 (t, 1H); 6.71 (d,
1H); 5.23 (s, 2H); 5.10 (s, 2H);
Example 71 (General Procedure (B))
3-Benzyl-8-[1,4]diazepan-1-yl-1-(2-ethoxy-ethyl)-7-(2-iodo-benzyl)-3,7-dih-
ydro-purine-2,6-dione. TFA
[0732] 168
[0733] .sup.1H-NMR (DMSO-d.sub.6): ((Selected peaks) 8.62 (s br,
2H); 7.88 (d, 1H); 7.40-7.20 (m, 7H); 7.04 (t, 1H); 6.71 (d, 1H);
5.24 (s, 2H); 5.101 (s, 2H); 0.93 (t, 3H).
Example 72 (General Procedure (B))
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(3-phenyl-allyl)-3,7-dihydro-puri-
ne-2,6-dione. TFA
[0734] 169
[0735] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.66 (s br, 2H);
7.50-7.20 (m) 7.14 (d, 2H); 6.46 (d, 1H); 6.27 (dt, 1H); 5.47 (s,
2H); 4.61 (d, 2H); 3.67 (m, 2H); 3.50 (m, 2H); 3.43 (s, 3H); 3.17
(m, 2H); 2.00 (m, 2H).
Example 73 (General Procedure (B))
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(3-phenylallyl)-3,7-dihydropurine-
-2,6-dione. TFA
[0736] 170
[0737] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.66 (s br, 2H);
7.50-7.20 (m) 7.14 (d, 2H); 6.46 (d, 1H); 6.27 (dt, 1H); 5.47 (s,
2H); 4.61 (d, 2H); 3.67 (m, 2H); 3.50 (m, 2H); 3.43 (s, 3H); 3.17
(m, 2H); 2.00 (m, 2H).
Example 74 (General Procedure (B))
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(2-oxo-2-phenyl-ethyl)-3,7-dihydr-
o-purine-2,6-dione. TFA
[0738] 171
[0739] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.62 (s br, 2H); 8.05
(d, 2H); 7.71 (t, 1H); 7.58 (t, 2H); 7.40-7.25 (m, 3H); 7.13 (d,
3H) 5.46 (s, 2H); 5.35 (s, 2H); 3.71 (m, 2H); 3.53 (m, 2H); 3.44
(s, 3H); 3-20 (m, 2H); 2.01 (m, 2H).
Example 75 (General Procedure (B))
2-(7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-pur-
in-1-ylmethyl)-benzonitrile
[0740] 172
[0741] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.66 (s br, 2H); 7.81
(d, 1H); 7.61 (t, 1H); 7.44 (t, 1H); 7.40-7.25 (m, 3H); 7.18 (d,
1H); 7.14 (d, 2H); 5.46 (s, 2H); 5.21 (s, 2H); 3.69 (m, 2H); 3.52
(m, 2H): 3.42 (s, 3H); 3.20 (m, 2H); 2.00 (m, 2H).
Example 76 (General Procedure (B))
(7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-purin-
-1-yl)-acetonitrile
[0742] 173
[0743] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.66 (s br, 2H);
7.40-7.25 (m, 3H); 5.46 (s, 2H); 4.84 (s, 2H); 3.69 (m, 2H); 3.52
(m, 2H); 3.44 (s, 3H); 3.17 (m, 2H); 1.99 (m, 2H).
Example 77 (General Procedure (B))
3-Methyl-7-(2-methyl-thiazol-4-ylmethyl)-8-piperazin-1-yl-3,7-dihydro-puri-
ne-2,6-dione. TFA
[0744] 174
[0745] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.99 (s, 1H); 8.88 (s
br,2H); 7.31 (s, 1H); 5.36 (s, 2H); 3.42 (m, 4H); 3.32 (s, 3H);
3.22 (s br,4H); 2.60 (s, 3H)
Example 78 (General Procedure (B))
8-[1,4]Diazepan-1-yl-3-methyl-7-(2-methyl-thiazol-4-ylmethyl)-3,7-dihydro--
purine-2,6-dione. TFA
[0746] 175
[0747] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.87 (s, 1H); 8.88 (s
br,2H); 7.21 (s, 1H); 5.41 (s, 2H); 3.73 (m, 2H); 3.57 (t,2H); 3.31
(s br,4H); 3.23 (s br,2H); 2.61 (s.3H); 2,51 (m, 1H); 2.04 (m,
2H);
[0748] HPLC-MS m/z=376
Example 79 (General Procedure (B))
3-Methyl-7-(2-oxo-2-phenyl-ethyl)-8-piperazin-1-yl-3,7-dihydro-purine-2,6--
dione. TFA
[0749] 176
[0750] .sup.1H-NMR (DMSO-d.sub.6): .delta. 11.00 (s, 1H); 9.89 (s
br, 2H); 8.07 (d, 2H); 7.74 (t, H); 7.64 (t,2H); 5.75 (s, 2H); 3.36
(s, 3H); 3.29 (m, 4H); 3.24 (m, 4H). HPLC-MS m/z=369
Example 80 (General Procedure (B))
8-[1,4]Diazepan-1-yl-3-methyl-7-(2-oxo-2-phenyl-ethyl)-3,7-dihydro-purine--
2,6-dione. TFA
[0751] 177
[0752] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.88 (s, 1H); 8.87 (s
br, 2H); 8.09-7.60 (m, 5H); 5.80 (s, 2H); 3.67 (t,2H); 3.46 (t,2H);
3.34 (s, 3H); 3.21 (t,2H); 2.01 (m, 2H). HPLC-MS m/z=383
Example 81 (General Procedure (B))
8-[1,4]Diazepan-1-yl-3-methyl-7-phenethyl-3,7-dihydro-purine-2,6-dione.
TFA
[0753] 178
[0754] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.89 (s, 1H); 8.87 (s
br,2H); 7.29-7.12 (m, 5H); 4.29 (t,2H); 3.54 (m, 2H); 3.42 (t,2H);
3.28 (s, 3H); 3.21 (s br, 2H); 3.00 (t,2H) 2.03 (m, 2H). HPLC-MS
m/z=369
Example 82 (General Procedure (B))
8-[1,4]Diazepan-1-yl-1-(3-hydroxy-propyl)-7-(2-iodo-benzyl)-3-methyl-3,7-d-
ihydro-purine-2,6-dione. TFA
[0755] 179
[0756] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.72 (s br, 2H); 7.93
(d, 1H); 7.35 (t, 1H); 7.08 (t, 1H); 6.70 (d, 1H); 5.29 (s, 2H);
3.84 (t, 2H); 3.66 (m, 2H); 3.43 (s, 3H); 3.42-3.33 (m, 4H) 3.27
(m, 2H); 3.15 (m, 2H); 1.94 (m, 2H); 1.62 (q, 2H); HPLC-MS (Method
C): m/z=539 (M+1); R.sub.t=3.69 min
Example 83 (General Procedure (B))
1-(3-Hydroxy-propyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihyd-
ro-purine-2,6-dione. TFA
[0757] 180
[0758] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.80 (s br 2H); 7.92 (d,
1H); 7.33 (t, 1H); 7.07 (t, 1H); 6.71 (d, 1H); 5.27 (s, 2H); 3.83
(t, 2H); 3.44 (s, 3H); 3.37 (t, 2H); 3.29 (m, 2H); 3.16 (m, 2H);
1.62 (q, 2H); HPLC-MS (Method C): m/z=525 (M+1); R.sub.t=3.53
min
Example 84 (General Procedure (B))
8-[1,4]Diazepan-1-yl-1-(2-ethoxy-ethyl)-7-(2-iodo-benzyl)-3-methyl-3,7-dih-
ydro-purine-2,6-dione. TFA
[0759] 181
[0760] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.64 (s br 2H); 7.93 (d,
1H); 7.35 (t, 1H); 7.08 (t, 1H); 6.69 (d, 1H); 5.28 (s, 2H); 3.96
(t, 2H); 3.66 (m, 2H); 3.16 (m, 2H); 3.43 (s, 3H); 1.01 (t, 3H).
HPLC-MS (Method C): m/z=553 (M+1); R.sub.t=4.09 min
Example 85 (General Procedure (B))
1-(2-Ethoxy-ethyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihydro-
-purine-2,6-dione. TFA
[0761] 182
[0762] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.80 (s br, 2H); 7.92
(d, 1H); 7.32 (t, 1H); 7.07 (t, 1H); 6.70 (d, 1H); 5.27 (s, 2H);
3.96 (t, 1H); 3.48-3.40 (m, 5H); 3.38 (q, 2H); 3.30 (m, 4H); 3.16
(m, 4H); 1.00 (t, 3H). HPLC-MS (Method C): m/z=539 (M+1);
R.sub.t=4.03 min
Example 86 (General Procedure (B))
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(2-phenoxy-ethyl)-3,7-di-
hydro-purine-2,6-dione. TFA
[0763] 183
[0764] HPLC-MS (Method C): m/z=601 (M+1); R.sub.t=4.73 min
Example 87 (General Procedure (B))
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1-[2-(2-methoxy-ethoxy)-ethyl]-3-me-
thyl-3,7-dihydro-purine-2,6-dione. TFA
[0765] 184
[0766] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.70 (s br, 2H); 7.93
(d, 1H); 7.35 (t, 1H); 7.08 (t, 1H); 6.70 (d, 1H); 5.29 (s, 2H);
3.96 (t, 2H); 3.66 (m, 2H); (3.52-3.44 (m, 4H); 3.43 (s, 3H);
3.42-3.37 (m, 2H); 3.36-3.31 (m, 2H); 3.26 (m, 2H); 3.20 (m, 5H);
1.94 (m, 2H). HPLC-MS (Method C): m/z=583 (M+1); R.sub.t=3.96
min
Example 88 (General Procedure (B))
7-(2-Iodo-benzyl)-1-[2-(2-methoxy-ethoxy)-ethyl]-3-methyl-8-piperazin-1-yl-
-3,7-dihydro-purine-2,6-dione. TFA
[0767] 185
[0768] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.78 (s br, 2H); 7.93
(d, 1H); 7.33 (t, 1H); 7.07 (t, 1H); 6.70 (t, 1H); 5.27 (s, 2H);
3.96 (t, 2H); 3.52-3.42 (m, 4); 3.44 (s, 3H); 3.38-3.27 (m, 6H);
3.20-3.12 (m, 4H) 3.18 (s, 3H). HPLC-MS (Method C): m/z=569 (M+1);
R.sub.t=3.86 min
Example 89 (General Procedure (B))
8-[1,4]Diazepan-1-yl-1-(3,5-dimethoxy-benzyl)-7-(2-iodo-benzyl)-3-methyl-3-
,7-dihydro-purine-2,6-dione. TFA
[0769] 186
[0770] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.70 (s br, 2H); 7.91
(d, 1H); 7.34 (t, 1H); 7.07 (t, 1H); 6.74 (d, 1H); 6.34 (m, 1H);
6.32 (m, 2H); 5.30 (s, 2H); 4.91 (s, 2H); 3.69 (m, 2H); 3.66 (s,
6H); 3.44 (s, 3H); 3.42 (m, 2H); 3.28 (m, 2H); 3.17 (m, 2H); 1.95
(m, 2H). HPLC-MS (Method C): m/z=631 (M+1); R.sub.t=4.72 min
Example 90 (General Procedure (B))
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1-(3-methoxy-benzyl)-3-methyl-3,7-d-
ihydro-purine-2,6-dione. TFA
[0771] 187
[0772] .sup.1H-NMR (DMSO-d.sub.6): .delta. 8.70 (s br, 2H); 7.93
(d, 1H); 7.35 (t,1H); 7.18 (t,1H); 7.08 (t, 1H); 6.80-6.70 (m, 4H);
5.30 (s, 2H); 4.95 (s, 2H); 3.68 (s, 3H); 3.44 (s, 3H); 3.42 (m,
2H); 3.28 (m, 2H); 3.16 (m, 2H); 1.95 (m, 2H). HPLC-MS (Method C):
m/z=601 (M+1); R.sub.t=4.62 min
Example 91 (General Procedure (B))
7-Biphenyl-2-ylmethyl-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-purine-2,6-
-dione. TFA
[0773] 188
[0774] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.81 (s, 1H); 8.74 (s
br, 2H); 7.5-7.22 (m, 9H); 5.35 (s, 2H); 5.53 (t,2H); 3.29 (s, 3H);
3.26 (m, 2H); 3.15 (s br,2H); 3.06 (s br,2H); 1.82 (m, 2H) HPLC-MS
m/z=431
Example 92 (General Procedure (B))
7-(2-Bromo-benzyl)-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-purine-2,6-di-
one. TFA
[0775] 189
[0776] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.89 (s, 1H); 8.8 (s
br,2H); 7.74-6.74 (m, 4H); 5.37 (s, 2H); 3.66 (m, 2H); 3.40 (t,2H);
3.35 (s, 3H); 3.26 (s br,2H); 3.16 (s br, 2H); HPLC-MS m/z=435
Example 93 (General Procedure (B))
7-(2-Chloro-benzyl)-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-purine-2,6-d-
ione. TFA
[0777] 190
[0778] .sup.1H-NMR (DMSO-d.sub.6): .delta. 10.88 (s, 1H); 8.83 (s
br, 2H); 7.55-7.47 (m, 1H) 7.42-7.25 (m, 2H) 6.87-6.78 (m 1H); 5.43
(s, 2H); 3.66 (t,2H); 3.41 (t,2H); 3.35 (s, 3H); 3.27 (s br, 2H);
3.16 (s br,2H); 1.95 (m, 2H). HPLC-MS m/z=389
Example 94 (General Procedure (C))
7-Benzyl-8-(3,5-dimethyl-piperazin-1-yl)-1,3-dimethyl-3,7-dihydro-purine-2-
,6-dione. 2HCl
[0779] 191
[0780] HPLC-MS (Method B): m/z=383 (m+1); R.sub.t=1.91 min.
Example 95 (General Procedure (A))
7-(4-Methoxybenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-di-
one. TFA
[0781] 192
[0782] HPLC-MS (Method C) m/z=384 (M+1); R.sub.t=1.24 min.
Example 96 (General Procedure (A))
(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7-yl)-phe-
nylacetic Acid Methyl Ester. TFA
[0783] 193
[0784] HPLC-MS (Method C): m/z=413 (M+1); R.sub.t=1.31 min.
Example 97 (General Procedure (A))
7-(5-Chloro-2-nitrobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-
-2,6-dione. TFA
[0785] 194
[0786] HPLC-MS (Method C): m/z=434 (M+1); R.sub.t=2.53 min.
Purity=100% (ELS)
Example 98 (General Procedure (A))
4-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7-ylmet-
hyl) benzonitrile. TFA
[0787] 195
[0788] HPLC-MS (Method C) m/z=380 (M+1); R.sub.t=1.21 min.
Example 99 (General Procedure (A))
7-(4-Methanesulfonylbenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurin-
e-2,6-dione.
[0789] 196
[0790] HPLC-MS (Method C) m/z=433 (M+1 ); R.sub.t=1.05 min.
Example 100 (General Procedure (A))
7-(2-Fluoro-6-nitrobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-
-2,6-dione. TFA
[0791] 197
[0792] HPLC-MS (Method C) m/z=418 (M+1); 1.22 min.
Example 101 (General Procedure (A))
7-(4-Benzyloxybenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6--
dione. TFA
[0793] 198
[0794] HPLC-MS (Method C) m/z=461 (M+1); R.sub.t=1.82 min.
Example 102 (General Procedure (A))
7-(2,4-Dichlorobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-
-dione. TFA
[0795] 199
[0796] HPLC-MS (Method C) m/z=425 (M+2); R.sub.t=1.57 min.
(Chlorine isotope signal)
Example 103 (General Procedure (A))
1,3-Dimethyl-8-piperazin-1-yl-7-(4-trifluoromethylbenzyl)-3,7-dihydropurin-
e-2,6-dione. TFA
[0797] 200
[0798] HPLC-MS (Method C) m/z=423 (M+1); R.sub.t=1.58 min.
Example 104 (General Procedure (A))
7-Biphenyl-4-ylmethyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6--
dione. TFA
[0799] 201
[0800] HPLC-MS (Method C) m/z=431 (M+1); R.sub.t=1.76 min
Example 105 (General Procedure (A))
3-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7-ylmet-
hyl) benzoic acid methyl ester. TFA
[0801] 202
[0802] HPLC-MS (Method C) m/z=413 (M+1); R.sub.t=1.33 min.
Example 106 (General Procedure (A))
4-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7-ylmet-
hyl) benzoic acid methyl ester. TFA
[0803] 203
[0804] HPLC-MS (Method C) m/z=413 (M+1); R.sub.t=1.31 min.
Example 107 (General Procedure (A))
7-Biphenyl-2-ylmethyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6--
dione. TFA
[0805] 204
[0806] HPLC-MS (Method C) m/z=431 (M+1); R.sub.t=1.55 min.
Example 108 (General Procedure (A))
7-(4-tert-Butyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-dione.
TFA
[0807] 205
[0808] HPLC-MS (Method C) m/z=411 (M+1); R.sub.t=1.78 min.
Example 109 (General Procedure (A))
1,3-Dimethyl-8-piperazin-1-yl-7-(4-trifluoromethoxybenzyl)-3,7-dihydropuri-
ne-2,6-dione. TFA
[0809] 206
[0810] HPLC-MS (Method C) m/z=439 (M+1); R.sub.t=1.65 min.
Example 110 (General Procedure (A))
7-(3,4-Dichlorobenzyl)-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydropurine-2,6-
-dione. TFA
[0811] 207
[0812] HPLC-MS (Method C) m/z=424 (M+1); R.sub.t=2.87 min. Purity
98% (ELS)
Example 111 (General Procedure (A))
1,3-Dimethyl-8-piperazin-1-yl-7-(4-[1,2,3]thiadiazol-4-ylbenzyl)-3,7-dihyd-
ropurine-2,6-dione. TFA
[0813] 208
[0814] HPLC-MS (Method C) m/z=439 (M+1); R.sub.t=2.47 min. Purity
80% (ELS)
Example 112 (General Procedure (A))
4-(1,3-Dimethyl-2,6-dioxo-8-piperazin-1-yl-1,2,3,6-tetrahydropurin-7-ylmet-
hyl)-3-methoxybenzoic Acid Methyl Ester. TFA
[0815] 209
[0816] HPLC-MS (Method C) m/z=443 (M+1); R.sub.t=2.50 min. Purity
>99% (ELS).
Example 113 (General Procedure (A))
7-Cyclohexyl
methyl-1,3-dimethyl-8-piperazin-1-yl-3,7-dihydro-purine-2,6-d-
ione. TFA
[0817] 210
[0818] HPLC-MS (Method B): m/z=361 (M+1); R.sub.t=2.15 min.
Example 114 (General Procedure (C))
7-Benzyl-8-(2,5-diaza-bicyclo[2.2.1]hept-2-yl)-1,3-dimethyl-3,7-dihydro-pu-
rine-2,6-dione. TFA
[0819] 211
[0820] HPLC-MS (Method B): m/z=367; R.sub.t=1.76 min. TIC area
100%
Example 115 (General Procedure (A))
8-(6-Benzyl-[1,4]diazepan-1-yl)-7-(2-iodo-benzyl)-1,3-dimethyl-3,7-dihydro-
-purine-2,6-dione. TFA
[0821] 212
[0822] HPLC-MS (Method B): m/z=585 (M+1); R.sub.t=2.87 min;
purity-50%
Example 116 (General Procedure (A))
(S)-7-Benzyl-8-(3-hydroxymethylpiperazin-1-yl)-1,3-dimethyl-3,7-dihydropur-
ine-2,6-dione
[0823] 213
[0824] The piperazine moiety was prepared according to the general
procedure for preparation of piperazine derivatives.
[0825] MeOH-d4; d=7.1-7.4 (m; 5H); 5.4 (d; 2H); 3.5 (s; 3H); 3.45
(m; 2H); 3.25 (s; 3H); 2.9-3.2 (m; 3H); 2.0 (m; 1H); 1.2 (s br;
3H). HPLC-MS (Method B): m/z=385 (M+1); R.sub.t=1.65 min.
Example 117 (General Procedure (C))
8-[1,4]Diazepan-1-yl-1,3-dimethyl-7-(2-oxo-2-pyrrolidin-1-yl-ethyl)-3,7-di-
hydro-purine-2,6-dione
[0826] 214
[0827] HPLC-MS (Method B): m/z=390; R.sub.t=2.93 min+0.43 min;
43+56%
Example 118 (General Procedure (C))
7-(2-Iodo-benzyl)-1,3-dimethyl-8-(6-pyridin-2-ylmethyl-[1,4]diazepan-1-yl)-
-3,7-dihydro-purine-2,6-dione. TFA
[0828] 215
[0829] .sup.1H NMR (CDCl3): .delta. 8.9 (s br, 2H); 8.65 (d, 1H);
8.2 (t, 1H); 7.85 (d, 1H); 7.15 (t, 1H); 7.5 (d, 1H); 7.3 (t, 1H);
7.0 (t, 1H); 6.75 (d, 1H); 5.45 (s, 2H); 3.05-3.8 (m, 3H); 3.5 (s,
3H); 3.3 (s, 4H); 2.8-3.25 (m, 7H). HPLC-MS (Method B): m/z=586
(M+1); R.sub.t=2.25 min; Purity (UV)=97%.
Example 119 (General Procedure (A))
7-(2-Bromo-benzyl)-1,3-dimethyl-8-(6-pyridin-2-ylmethyl-[1,4]diazepan-1-yl-
)-3,7-dihydro-purine-2,6-dione
[0830] 216
[0831] HPLC-MS (Method B): m/z=538 & 541 (M+1; M+2);
R.sub.t=1.94 min
Example 120 (General Procedure (D))
(S)
7-Benzyl-8-(3-benzyl-piperazin-1-yl)-1,3-dimethyl-3,7-dihydro-purine-2-
,6-dione
[0832] 217
[0833] .sup.1H-NMR (CDCl.sub.3): .delta. 7.24(m, 10H); 5.32 (m,
2H); 3.52(s, 3H); 3.11(m, 11H); 2.68(m, 2H).
[0834] HPLC-MS (Method B): m/z=445 (M+1), 354, 263;
R.sub.t=4.13
Example 121 (General Procedure (D))
7-Benzyl-1,3-dimethyl-8-(3-phenethyl-piperazin-1-yl)-3,7-dihydro-purine-2,-
6-dione
[0835] 218
[0836] .sup.1H-NMR (DMSO-d.sub.6): .delta. 7.25(m, 10H); 5.41(s,
2H); 3.30(m, 15H); 1.88(m, 2H). HPLC-MS (Method B): m/z=481 (M+Na),
459/460(M+1); R.sub.t=2.52 min.
Example 122 (General Procedure (D))
(R)-7-Benzyl-8-(3-benzylpiperazin-1-yl)-1,3-dimethyl-3,7-dihydropurine-2,6-
-dione
[0837] 219
[0838] .sup.1H-NMR (CDCl.sub.3): .delta. 7.24(m, 10H); 5.34(m, 2H);
3.55(s, 3H); 3.34(m, 5H); 2.78(m, 7H); 1.70(s, 1H). HPLC-MS (Method
B): m/z=445/446(M+1), 468(M+Na); R.sub.t=2.56 min.
Example 123 (General Procedure (D))
7-Benzyl-8-(3-(2-hydroxy-benzyl)-piperazin-1-yl)-1,3-dimethyl-3,7-dihydro--
purine-2,6-dione
[0839] 220
[0840] .sup.1H-NMR (MeOH-d.sub.4): .delta. 7.28(m, 3H); 7.11(m,
4H); 6.81(m, 2H); 5.43(m, 2H); 3.70(m,1H); 3.31(m, 14H); 2.88(s,
2H). HPLC-MS (Method B): m/z=461/462(m+1); 483(M+Na);
R.sub.t=2,409
Example 124 (General Procedure (D))
7-Benzyl-8-(3-(2-methoxy-benzyl)-piperazin-1-yl)1,3-dimethyl-3,7-dihydro-p-
urine-2,6-dione
[0841] 221
[0842] .sup.1H-NMR (CDCl.sub.3): .delta. 7.22(m, 7H); 6.87(m, 2H);
5.32(m, 2H); 3.83(s, 3H); 3.54(s, 3H); 3.33(m, 5H); 2.79(m, 7H);
1.87(s, 1H) HPLC-MS (Method B): m/z=475,476,477 (M+1);
R.sub.t==2.57
Example 125 (General Procedure (D))
(R)
7-Benzyl-8-(3-(4-methoxy-benzyl)-piperazin-1-yl)1,3-dimethyl-3,7-dihyd-
ro-purine-2,6-dione
[0843] 222
[0844] .sup.1H-NMR (CDCl.sub.3): .delta. 7.25(m, 5H); 7.08(m, 2H);
6.84(m, 2H); 5.34(m, 2H); 3.80(s, 3H); 3.55(s, 3H); 3.38(s, 3H);
3.29(m, 2H); 2.88(m, 5H); 2.52(m, 2H); 1.64(s, 1H) HPLC-MS (Method
B): m/z=497(M+1), 475/476/477(M+1); R.sub.t=2,368 min
Example 126 (General Procedure (D))
(R)-7-Benzyl-8-(3-(4-hydroxy-benzyl)-piperazin-1-yl)-1,3-dimethyl-3,7-dihy-
dro-purine-2,6-dione
[0845] 223
[0846] .sup.1H-NMR (DMSO-d.sub.6): .delta. 9.38(s, 1H); 8.86(s,
2H); 7.29(m, 3H); 7.13(m, 2H); 6.98(m, 2H); 6.72(m, 2H); 5.36(m,
2H); 3.09(m, 15H) HPLC-MS (Method B): m/z=943(2M+Na), 461/462(M+1);
R.sub.t=2.017
Example 127 (General Procedure (D))
(R)-7-Benzyl-1,3-dimethyl-8-(3-(4-nitro-benzyl)-piperazin-1-yl)-3,7-dihydr-
o-purine-2,6-dione
[0847] 224
[0848] .sup.1H-NMR (CDCl.sub.3): .delta. 8.17(m, 2H); 7.30(m, 7H);
5.34(s, 2H); 3.55(s, 3H); 3.00(m, 12H)
[0849] HPLC-MS (Method B): m/z=490/491 (M+1); R.sub.t=2.522
Example 128 (General Procedure (D))
(R)-7-Benzyl-8-(3-(4-fluoro-benzyl)-piperazin-1-yl)-1,3-dimethyl-3,7-dihyd-
ro-purine-2,6-dione
[0850] 225
[0851] .sup.1H-NMR (CDCl.sub.3): .delta. 7.32(m, 2H); 7.08(m, 7H);
5.34(m, 2H); 3.55(m, 3H); 2.93(m, 12H)
[0852] HPLC-MS (Method B): m/z=947(2M+Na), 485(M+Na), 463/464(M+1)
R.sub.t=2.35 min
Example 129 (General Procedure (D))
(R)-4-(4-(7-Benzyl-1,3-dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl-
)-piperazin-2-ylmethyl)-benzonitrile
[0853] 226
[0854] .sup.1H-NMR (CDCl.sub.3): .delta. 7.61(m, 2H); 7.26(m, 7H);
5.34(s, 2H); 3.53(s, 3H); 3.28(m, 5H); 2.83(m, 7H)
[0855] HPLC-MS (Method B): m/z=492(M+Na), 470/471 (M+1);
R.sub.t=2.334
Example 130 (General Procedure (D))
(R)-6-(8-(3-Benzyl-piperazin-1-yl)-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahyd-
ro-purin-7-ylmethyl)-nicotinonitrile
[0856] 227
[0857] .sup.1H-NMR (CDCl.sub.3): .delta. 8.67(m, 1H); 7.88(m, 1H);
7.22(m, 6H); 5.40(s, 2H); 3.55(m, 3H); 3.33(m, 5H); 2.85(m, 7H)
HPLC-MS (Method B): m/z=963(2M+Na), 471/472(M+1); R.sub.t=1.791
min.
Example 131 (General Procedure (D))
(R)-7-Benzyl-1,3-dimethyl-8-(3-thiazol-4-ylmethyl-piperazin-1-yl)-3,7-dihy-
dro-purine-2,6-dione
[0858] 228
[0859] .sup.1H-NMR(CDCl.sub.3): .delta. 8.77(m,1H); 7.26(m, 5H);
7.02(m, 1H); 5.35(m, 2H); 3.54(s, 3H); 2.74(m, 12H) HPLC-MS (Method
B): m/z=452/453(M+1) R.sub.t=2.220 min.
Example 132 (General Procedure (D))
(R)-2-[1,3-Dimethyl-2,6-dioxo-8-(3-thiophen-2-ylmethyl-piperazin-1-yl)-1,2-
,3,6-tetrahydro-purin-7-ylmethyl]-benzonitrile
[0860] 229
[0861] .sup.1H-NMR (CDCl.sub.3): .delta. 7.70(s, 1H); 7.55(s, 1H);
7.40(s, 1H); 7.13(s, 2H); 6.88(s, 3H); 5.56(s, 2H); 3.58(s, 3H);
2.96(m, 12H) HPLC-MS (Method B): Ret.tid=2.40 min. m/z=489(M+Na),
476/477(M+1)
[0862] By use of the general methods described above, the following
compounds can furthermore be made:
Example 133
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(tetrahydro-furan-2-ylmethyl)-3,7-
-dihydro-purine-2,6-dione
[0863] 230
Example 134
7-Benzyl-1-(2-cyclohexyl-ethyl)-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro--
purine-2,6-dione
[0864] 231
Example 135
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-
(5-methyl-hexyl)-3,7-dihydro-pur- ine-2,6-dione
[0865] 232
Example 136
7-Benzyl-8-[1,4]diazepan-1-yl-3-methyl-1-(3-methyl-butyl)-3,7-dihydro-puri-
ne-2,6-dione
[0866] 233
Example 137
7-Benzyl-8-[1,4]diazepan-1-yl-1-(2-ethoxy-ethyl)-3-methyl-3,7-dihydro-puri-
ne-2,6-dione
[0867] 234
Example 138
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(tetrahydro-furan-2-ylme-
thyl)-3,7-dihydro-purine-2,6-dione
[0868] 235
Example 139
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-1-(tetrahydro-furan-2-ylmethyl-
)-3,7-dihydro-purine-2,6-dione
[0869] 236
Example 140
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(tetrahydro-pyran-2-ylme-
thyl)-3,7-dihydro-purine-2,6-dione
[0870] 237
Example 141
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-1-(tetrahydro-pyran-2-ylmethyl-
)-3,7- dihydro-purine-2,6-dione
[0871] 238
Example 142
7-(2-Iodo-benzyl)-3-methyl-1-(2-phenoxyethyl)-8-piperazin-1-yl-3,7-dihydro-
-purine-2,6-dione
[0872] 239
Example 143
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-1-(2-methoxy-ethyl)-3-methyl-3,7-di-
hydro-purine-2,6-dione
[0873] 240
Example 144
7-(2-Iodo-benzyl)-1-(2-methoxy-ethyl)-3-methyl-8-piperazin-1-yl-3,7-dihydr-
o-purine-2,6-dione
[0874] 241
Example 145
1-(2-Benzyloxy-ethyl)-8-[1,4]diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-3,7--
dihydro-purine-2,6-dione
[0875] 242
Example 146
1-(2-Benzyloxy-ethyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihy-
dro-purine-2,6-dione
[0876] 243
Example 147
1-(3,5-Dimethoxy-benzyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7-d-
ihydro-purine-2,6-dione
[0877] 244
Example 148
7-(2-Iodo-benzyl)-1-(3-methoxy-benzyl)-3-methyl-8-piperazin-1-yl-3,7-dihyd-
ro-purine-2,6-dione
[0878] 245
Example 149
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-(3-trifluoromethoxy-benz-
yl)-3,7-dihydro-purine-2,6-dione
[0879] 246
Example 150
7-(2-Iodo-benzyl)-3-methyl-8-piperazin-1-yl-1-(3-trifluoromethoxy-benzyl)--
3,7-dihydro-purine-2,6-dione
[0880] 247
Example 151
8-[1,4]Diazepan-1-yl-1-(2-hydroxy-propyl)-7-(2-iodo-benzyl)-3-methyl-3,7-d-
ihydro-purine-2,6-dione
[0881] 248
Example 152
8-[1,4]Diazepan-1-yl-1-(2,2-diethoxy-ethyl)-7-(2-iodo-benzyl)-3-methyl-3,7-
-dihydro-purine-2,6-dione
[0882] 249
Example 153
8-[1,4]Diazepan-1-yl-1-(2,2-dimethoxy-ethyl)-7-(2-iodo-benzyl)-3-methyl-3,-
7-dihydro-purine-2,6-dione
[0883] 250
Example 154
8-[1,4]Diazepan-1-yl-1-(2-[1,3]dioxolan-2-yl-ethyl)-7-(2-iodo-benzyl)-3-me-
thyl-3,7-dihydro-purine-2,6-dione
[0884] 251
Example 155
1-(2-[1,3]Dioxolan-2-yl-ethyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-
-3,7-dihydro-purine-2,6-dione
[0885] 252
Example 156
1-[1,3]Dioxolan-2-ylmethyl-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7-
-dihydro-purine-2,6-dione
[0886] 253
Example 157
8-[1,4]Diazepan-1-yl-1-(2-[1,3]dioxan-2-yl-ethyl)-7-(2-iodo-benzyl)-3-meth-
yl-3,7-dihydro-purine-2,6-dione
[0887] 254
Example 158
1-(2-[1,3]Dioxan-2-yl-ethyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3-
,7-dihydro-purine-2,6-dione
[0888] 255
Example 159
8-[1,4]Diazepan-1-yl-1-(2,3-dihydroxy-propyl)-7-(2-iodo-benzyl)-3-methyl-3-
,7-dihydro-purine-2,6-dione
[0889] 256
Example 160
1-(2,3-Dihydroxy-propyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl-3,7-d-
ihydro-purine-2,6-dione
[0890] 257
Example 161
8-[1,4]Diazepan-1-yl-1-(3-hydroxy-2-methyl-propyl)-7-(2-iodo-benzyl)-3-met-
hyl-3,7-dihydro-purine-2,6-dione
[0891] 258
Example 162
1-(3-Hydroxy-2-methyl-propyl)-7-(2-iodo-benzyl)-3-methyl-8-piperazin-1-yl--
3,7-dihydro-purine-2,6-dione
[0892] 259
Example 163
8-[1,4]Diazepan-1-yl-7-(2-iodo-benzyl)-3-methyl-1-[3-(tetrahydro-pyran-2-y-
loxy)-propyl]-3,7-dihydro-purine-2,6-dione
[0893] 260
Example 164
8-[1,4]Diazepan-1-yl-1-(2-fluoro-ethyl)-7-(2-iodo-benzyl)-3-methyl-3,7-dih-
ydro-purine-2,6-dione
[0894] 261
Example 165
7-Benzyl-8-[1,4]diazepan-1-yl-1-(3-hydroxy-propyl)-3-methyl-3,7-dihydro-pu-
rine-2,6-dione
[0895] 262
Example 166
7-Biphenyl-2-ylmethyl-8-[1,4]diazepan-1-yl-3-methyl-3,7-dihydro-purine-2,6-
-dione
[0896] 263
* * * * *