US2023151007A1PendingUtilityA1
Substituted pyridopyrimidinonyl compounds useful as t cell activators
Est. expiryAug 28, 2039(~13.1 yrs left)· nominal 20-yr term from priority
Inventors:Upender VelaparthiRichard E. OlsonChetan Padmakar DarneBireshwar DasguptaJayakumar Sankara WarrierHasibur RahamanPrasada Rao JalagamSaumya RoyDenise Grunenfelder
A61K 31/519C07D 471/04A61P 31/12C07D 401/04A61P 35/00
74
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Claims
Abstract
Disclosed are compounds of Formula (I):or a salt thereof, wherein: R1, R2, R4, R5, and m are defined herein. Also disclosed are methods of using such compounds to inhibit the activity of one or both of diacylglycerol kinase alpha (DGKα) and diacylglycerol kinase zeta (DGKξ), and pharmaceutical compositions comprising such compounds. These compounds are useful in the treatment of viral infections and proliferative disorders, such as cancer.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A compound of Formula (I):
or a salt thereof, wherein:
R 1 is H, F, Cl, Br, -CN, -OH, C 1-3 alkyl substituted with zero to 4 R 1a , C 3-4 cycloalkyl substituted with zero to 4 R 1a , C 1-3 alkoxy substituted with zero to 4 R 1a , -NR a R a , -S(O) n R e , or -P(O)R e R e ;
each R 1a is independently F, Cl, -CN, -OH, -OCH 3 , or -NR a R a ;
each R a is independently H or C 1-3 alkyl;
each R e is independently C 3-4 cycloalkyl or C 1-3 alkyl substituted with zero to 4 R 1a ;
R 2 is H, C 1-3 alkyl substituted with zero to 4 R 2a , or C 3-4 cycloalkyl substituted with zero to 4 R 2a ;
each R 2a is independently F, Cl, -CN, -OH, -O(C 1-2 alkyl), C 3-4 cycloalkyl, C 3-4 alkenyl, or C 3-4 alkynyl;
R 4 is -CH 2 R 4a , -CH 2 CH 2 R 4a , -CH 2 CHR 4a R 4d , -CHR 4a R 4b , or -CR 4a R 4b R 4c ;
R 4a and R 4b are independently:
(i) -CN or C 1-6 alkyl substituted with zero to 4 substituents independently selected from F, Cl, -CN, -OH, -OCH 3 , -SCH 3 , C 1-3 fluoroalkoxy, -NR a R a , -S(O) 2 R e , or -NRaS(O)2Re;
(ii) C 3-6 cycloalkyl, 4- to 10-membered heterocyclyl, phenyl, or 5-to 10-membered heteroaryl, each substituted with zero to 4 substituents independently selected from F, Cl, Br, -CN, -OH, C 1-6 alkyl, C 1-3 fluoroalkyl, C 1-2 bromoalkyl, C 1-2 cyanoalkyl, C 1-4 hydroxyalkyl, -(CH 2 ) 1-2 O(C 1-3 alkyl), C 1-4 alkoxy, C 1-3 fluoroalkoxy, C 1-3 cyanoalkoxy, -O(C 1-4 hydroxyalkyl), -O(CR x R x ) 1-3 O(C 1-3 alkyl), C 1-3 fluoroalkoxy, -O(CH 2 ) 1-3 NR c R c , -OCH 2 CH=CH 2 , -OCH 2 C≡CH, -C(O)(C 1-4 alkyl), -C(O)OH, -C(O)O(C 1-4 alkyl), -NR c R c , -CH 2 NR a R a , -NR a S(O) 2 (C 1-3 alkyl), -NR a C(O)(C 1-3 alkyl), -(CR x R x ) 0-2 NR a C(O)O(C 1-4 alkyl), -P(O)(C 1-3 alkyl) 2 , -S(O) 2 (C 1-3 alkyl), -(CR x R x ) 1-2 (C 3-4 cycloalkyl), -(CR x R x ) 1-2 (morpholinyl), -(CR x R x ) 1-2 (difluoromorpholinyl), -(CR x R x ) 1-2 (dimethylmorpholinyl), -(CR x R x ) 1-2 (oxaazabicyclo[2.2.1]heptanyl), (CR x R x ) 1-2 (oxaazaspiro[3.3]heptanyl), -(CR x R x ) 1-2 (methylpiperazinonyl), -(CR x R x ) 1-2 (acetylpiperazinyl), -(CR x R x ) 1-2 (piperidinyl), -(CR x R x ) 1-2 (difluoropiperidinyl), -(CR x R x ) 1-2 (methoxypiperidinyl), -(CR x R x ) 1-2 (hydroxypiperidinyl), -O(CR x R x ) 0-2 (C 3-6 cycloalkyl), -O(CR x R x ) 0-2 (methylcyclopropyl), -O(CR x R x ) 0-2 ((ethoxycarbonyl)cyclopropyl), -O(CR x R x ) 0-2 (oxetanyl), -O(CR x R x ) 0-2 (methylazetidinyl), -O(CR x R x ) 0-2 (tetrahydropyranyl), -O(CR x R x ) 1-2 (morpholinyl), -O(CR x R x ) 0-2 (thiazolyl), cyclopropyl, cyanocyclopropyl, methylazetidinyl, acetylazetidinyl, (tert-butoxycarbonyl)azetidinyl, triazolyl, tetrahydropyranyl, morpholinyl, thiophenyl, methylpiperidinyl, dioxolanyl, pyrrolidinonyl, and R d ; or
(iii) C 1-4 alkyl substituted with one cyclic group selected from C 3-6 cycloalkyl, 4- to 10-membered heterocyclyl, mono- or bicyclic aryl, or 5-to 10-membered heteroaryl, said cyclic group substituted with zero to 3 substituents independently selected from F, Cl, Br, -OH, -CN, C 1-6 alkyl, C 1-3 fluoroalkyl, C 1-3 alkoxy, C 1-3 fluoroalkoxy, —OCH 2 CH═CH 2 , —OCH 2 C≡CH, -NR c R c , -NR a S(O) 2 (C 1-3 alkyl), -NR a C(O)(C 1-3 alkyl), -NR a C(O)O(C 1-4 alkyl), and C 3-6 cycloalkyl;
or R 4a and R 4b together with the carbon atom to which they are attached form a C 3-6 cycloalkyl or a 3- to 6-membered heterocyclyl, each substituted with zero to 3 R f ;
each R f is independently F, Cl, Br, -OH, -CN, C 1-6 alkyl, C 1-3 fluoroalkyl, C 1-3 alkoxy, C 1-3 fluoroalkoxy, —OCH 2 CH═CH 2 , —OCH 2 C≡CH, -NR c R c , or a cyclic group selected from C 3-6 cycloalkyl, 3- to 6-membered heterocyclyl, phenyl, monocyclic heteroaryl, and bicyclic heteroaryl, each cyclic group substituted with zero to 3 substituents independently selected from F, Cl, Br, -OH, -CN, C 1-6 alkyl, C 1-3 fluoroalkyl, C 1-3 alkoxy, C 1-3 fluoroalkoxy, and -NR c R c ;
R 4c is C 1-6 alkyl or C 3-6 cycloalkyl, each substituted with zero to 4 substituents independently selected from F, Cl, -OH, C 1-2 alkoxy, C 1-2 fluoroalkoxy, and -CN;
R 4d is -OCH 3 ;
each R c is independently H or C 1-2 alkyl;
R d is phenyl substituted with zero to 1 substituent selected from F, Cl, -CN, -CH 3 , and -OCH 3 ;
each R 5 is independently -CN, C 1-6 alkyl substituted with zero to 4 R g , C 2-4 alkenyl substituted with zero to 4 R g , C 2-4 alkynyl substituted with zero to 4 R g , C 3-4 cycloalkyl substituted with zero to 4 R g , phenyl substituted with zero to 4 R g , oxadiazolyl substituted with zero to 3 R g , pyridinyl substituted with zero to 4 R g , -(CH 2 ) 1-2 (4- to 10-membered heterocyclyl substituted with zero to 4 R g ), -(CH 2 ) 1-2 NR c C(O)(C 1-4 alkyl), -(CH 2 ) 1-2 NR c C(O)O(C 1-4 alkyl), -(CH 2 ) 1-2 NR c S(O) 2 (C 1-4 alkyl), -C(O)(C 1-4 alkyl), -C(O)OH, -C(O)O(C 1-4 alkyl), -C(O)O(C 3-4 cycloalkyl), -C(O)NR a R a , or -C(O)NR a (C 3-4 cycloalkyl);
each R g is independently F, Cl, -CN, -OH, C 1-3 alkoxy, C 1-3 fluoroalkoxy, -O(CH 2 ) 1-2 O(C 1-2 alkyl), or -NR c R c ;
m is zero, 1, 2, or 3; and
n is zero, 1, or 2.
2 . The compound according to claim 1 or a salt thereof, wherein:
R 1 is H, F, Cl, Br, -CN, -OH, C 1-3 alkyl substituted with zero to 4 R 1a , cyclopropyl substituted with zero to 3 R 1a , C 1-3 alkoxy substituted with zero to 3 R 1a , -NR a R a , -S(O) n CH 3 , or -P(O)(CH 3 ) 2 ;
R 2 is H or C 1-2 alkyl substituted with zero to 2 R 2a ;
each R 2a is independently F, Cl, -CN, -OH, -O(C 1-2 alkyl), cyclopropyl, C 3-4 alkenyl, or C 3-4 alkynyl;
R 4a and R 4b are independently:
(i) -CN or C 1-4 alkyl substituted with zero to 4 substituents independently selected from F, Cl, -CN, -OH, -OCH 3 , -SCH 3 , C 1-3 fluoroalkoxy, and -NR a R a ;
(ii) C 3-6 cycloalkyl, 4- to 10-membered heterocyclyl, phenyl, or 5-to 10-membered heteroaryl, each substituted with zero to 4 substituents independently selected from F, Cl, Br, -CN, -OH, C 1-6 alkyl, C 1-3 fluoroalkyl, C 1-2 bromoalkyl, C 1-2 cyanoalkyl, C 1-2 hydroxyalkyl, -CH 2 NR a R a , -(CH 2 ) 1-2 O(C 1-2 alkyl), -(CH 2 ) 1-2 NR x C(O)O(C 1-2 alkyl), C 1-4 alkoxy, -O(C 1-4 hydroxyalkyl), -O(CR x R x ) 1-2 O(C 1-2 alkyl), C 1-3 fluoroalkoxy, C 1-3 cyanoalkoxy, -O(CH 2 ) 1-2 NR c R c , —OCH 2 CH═CH 2 , —OCH 2 C≡CH, -C(O)(C 1-4 alkyl), -C(O)OH, -C(O)O(C 1-4 alkyl), -NR c R c , -NR a S(O) 2 (C 1-3 alkyl), -NR a C(O)(C 1-3 alkyl), -NR a C(O)O(C 1-4 alkyl), -P(O)(C 1-2 alkyl) 2 , -S(O) 2 (C 1-3 alkyl), -(CH 2 ) 1-2 (C 3-4 cycloalkyl), -CR x R x (morpholinyl), -CR x R x (difluoromorpholinyl), -CR x R x (dimethylmorpholinyl), -CR x R x (oxaazabicyclo[2.2.1]heptanyl), -CR x R x (oxaazaspiro[3.3]heptanyl), -CR x R x (methylpiperazinonyl), -CR x R x (acetylpiperazinyl), -CR x R x (piperidinyl), -CR x R x (difluoropiperidinyl), -CR x R x (methoxypiperidinyl), -CR x R x (hydroxypiperidinyl), -O(CH 2 ) 0-2 (C 3-4 cycloalkyl), -O(CH 2 ) 0-2 (methylcyclopropyl), -O(CH 2 ) 0-2 ((ethoxycarbonyl)cyclopropyl), -O(CH 2 ) 0-2 (oxetanyl), -O(CH 2 ) 0-2 (methylazetidinyl), -O(CH 2 ) 1-2 (morpholinyl), -O(CH 2 ) 0-2 (tetrahydropyranyl), -O(CH 2 ) 0-2 (thiazolyl), cyclopropyl, cyanocyclopropyl, methylazetidinyl, acetylazetidinyl, (tert-butoxycarbonyl)azetidinyl, dioxolanyl, pyrrolidinonyl, triazolyl, tetrahydropyranyl, morpholinyl, thiophenyl, methylpiperidinyl, and R d ; or
(iii) C 1-3 alkyl substituted with one cyclic group selected from C 3-6 cycloalkyl, 4- to 10-membered heterocyclyl, mono- or bicyclic aryl, or 5-to 10-membered heteroaryl, said cyclic group substituted with zero to 3 substituents independently selected from F, Cl, Br, -OH, -CN, C 1-3 alkyl, C 1-2 fluoroalkyl, C 1-3 alkoxy, C 1-2 fluoroalkoxy, —OCH 2 CH═CH 2 , —OCH 2 C≡CH, -NR c R c , -NR a S(O) 2 (C 1-3 alkyl), -NR a C(O)(C 1-3 alkyl), -NR a C(O)O(C 1-4 alkyl), and C 3-4 cycloalkyl;
or R 4a and R 4b together with the carbon atom to which they are attached, form a C 3-6 cycloalkyl or a 3- to 6-membered heterocyclyl, each substituted with zero to 3 R f ;
each R f is independently F, Cl, Br, -OH, -CN, C 1-4 alkyl, C 1-2 fluoroalkyl, C 1-3 alkoxy, C 1-2 fluoroalkoxy, —OCH 2 CH═CH 2 , —OCH 2 C≡CH, -NR c R c , or a cyclic group selected from C 3-6 cycloalkyl, 3- to 6-membered heterocyclyl, phenyl, monocyclic heteroaryl, and bicyclic heteroaryl, each cyclic group substituted with zero to 3 substituents independently selected from F, Cl, Br, -OH, -CN, C 1-4 alkyl, C 1-2 fluoroalkyl, C 1-3 alkoxy, C 1-2 fluoroalkoxy, and -NR c R c ;
R 4c is C 1-4 alkyl or C 3-6 cycloalkyl, each substituted with zero to 4 substituents independently selected from F, Cl, -OH, C 1-2 alkoxy, C 1-2 fluoroalkoxy, and -CN;
each R 5 is independently -CN, C 1-5 alkyl substituted with zero to 4 R g , C 2-3 alkenyl substituted with zero to 4 R g , C 2-3 alkynyl substituted with zero to 4 R g , C 3-4 cycloalkyl substituted with zero to 4 R g , phenyl substituted with zero to 3 R g , oxadiazolyl substituted with zero to 3 R g , pyridinyl substituted with zero to 3 R g , -(CH 2 ) 1-2 (4- to 10-membered heterocyclyl substituted with zero to 4 R g ), -(CH 2 ) 1-2 NR c C(O)(C 1-4 alkyl), -(CH 2 ) 1-2 NR c C(O)O(C 1-4 alkyl), -(CH 2 ) 1-2 NR c S(O) 2 (C 1-4 alkyl), -C(O)(C 1-4 alkyl), -C(O)OH, -C(O)O(C 1-4 alkyl), -C(O)O(C 3-4 cycloalkyl), -C(O)NR a R a , or -C(O)NR a (C 3-4 cycloalkyl);
each R x is independently H or -CH 3 ; and
m is 1, 2, or 3.
3 . The compound according to claim 1 or a salt thereof, wherein:
R 1 is Cl, -CN, -OH, -CHF 2 , -CH 2 OH, -CH 2 OCH 3 , -OCH 3 , -OCH 2 CH 3 , -OCHF 2 , -OCH 2 CH 2 OCH 3 , or -OCH 2 CH 2 N(CH 3 ) 2 ;
R 2 is H, -CH 3 , or -CD 3 ;
R 4 is -CH 2 R 4a or -CHR 4a R 4b ;
R 4a is cyclopropyl, cyclobutyl, cyclohexyl, phenyl, pyridinyl, pyrimidinyl, oxadiazolyl, bicyclo[1.1.1]pentanyl, benzo[d][1,3]dioxolyl, or oxodihydrobenzo[d]oxazolyl, each substituted with zero to 3 substituents independently selected from F, Cl, Br, -CN, -CH 3 , -CH(CH 3 ) 2 , -C(CH 3 ) 3 , -CH 2 OH, -CHF 2 , -CF 3 , -CH 2 Br, -CH 2 NH 2 , -CH 2 NHC(O)OCH 3 , -C(CH 3 ) 2 CN, -OCH 3 , -OCD 3 , -OCH 2 CH 3 , -OCH(CH 3 ) 2 , -OCHF 2 , -OCF 3 , -OCH 2 CH 2 CF 3 , -OC(CH 3 ) 2 CN, -OC(CH 3 ) 2 CH 2 OH, -OC(CH 3 ) 2 CH 2 OCH 3 , -N(CH 3 ) 2 , -C(O)OCH 3 , cyclopropyl, cyanocyclopropyl, methylcyclopropyl, -O(cyclopropyl), -O((ethoxycarbonyl)cyclopropyl), morpholinyl, pyrrolidinonyl, tetrahydropyranyl, dioxolanyl, -CH 2 (morpholinyl), -CH 2 (difluoromorpholinyl), -CH 2 (dimethylmorpholinyl), -CH 2 (oxaazabicyclo[2.2.1]heptanyl), -CH 2 (oxaazaspiro[3.3]heptanyl), -CH 2 (methylpiperazinonyl), -CH 2 (acetylpiperazinyl), -CH 2 (piperidinyl), -CH 2 (difluoropiperidinyl), -CH 2 (methoxypiperidinyl), -CH 2 (hydroxypiperidinyl), -C(CH 3 ) 2 (morpholinyl), -OCH 2 (cyclopropyl), -OCH 2 (methylcyclopropyl), -OCH 2 (methylazetidinyl), -OCH 2 (oxetanyl), -OCH 2 (tetrahydropyranyl), -OCH 2 (thiazolyl), or -OCH 2 CH 2 (cyclopropyl);
R4b is:
(i) -CN, -CH 3 , -CH 2 CH 3 , -CH 2 CH 2 CH 3 , or -CH(CH 3 ) 2 ; or
(ii) phenyl, isoxazolyl, oxadiazolyl, thiazolyl, or triazolyl, each substituted with zero to 3 substituents independently selected from F, Cl, Br, -CH 3 , -C(CH 3 ) 3 , -CF 3 , -OCF 3 , and cyclopropyl;
each R 5 is independently -CH 3 , -CH 2 CH 3 , -CH 2 CH 2 CH 3 , -CH 2 OH, -CH 2 OCH 3 , -CH 2 OCH 2 CH 3 , -CH 2 NH 2 , -CH 2 N 3 , or -CH 2 NHC(O)OCH 3 ; and
m is 2.
4 . The compound according to claim 1 or a salt thereof, wherein R 4 is -CH 2 R 4a .
5 . The compound according to claim 1 or a salt thereof, wherein:
R4 is -CHR 4a R 4b ;
R 4a is phenyl, pyridinyl, pyrimidinyl, oxadiazolyl, benzo[d][1,3]dioxolyl, or oxodihydrobenzo[d]oxazolyl, each substituted with 1 to 3 substituents independently selected from F, Cl, Br, -CN, -CH 3 , -CH 2 OH, -CH 2 Br, -CH 2 NH 2 , -CH 2 NHC(O)OCH 3 , -CF 3 , -C(CH 3 ) 2 CN, -OCH 3 , -OCD 3 , -OCH 2 CH 3 , -OCH(CH 3 ) 2 , -OCHF 2 , -OCF 3 , -OCH 2 CH 2 CF 3 , -OC(CH 3 ) 2 CN, -OC(CH 3 ) 2 CH 2 OH, -OC(CH 3 ) 2 CH 2 OCH 3 , -N(CH 3 ) 2 , -C(O)OCH 3 , cyclopropyl, cyanocyclopropyl, methylcyclopropyl, -O(cyclopropyl), -O((ethoxycarbonyl)cyclopropyl), -OCH 2 (cyclopropyl), -CH 2 (piperidinyl), morpholinyl, pyrrolidinonyl, tetrahydropyranyl, dioxolanyl, -CH 2 (morpholinyl), -CH 2 (difluoromorpholinyl), -CH 2 (dimethylmorpholinyl), -CH 2 (oxaazabicyclo[2.2.1]heptanyl), -CH 2 (oxaazaspiro[3.3]heptanyl), -CH 2 (methylpiperazinonyl), -CH 2 (acetylpiperazinyl), -CH 2 (piperidinyl), -CH 2 (difluoropiperidinyl), -CH 2 (methoxypiperidinyl), -CH 2 (hydroxypiperidinyl), -C(CH 3 ) 2 (morpholinyl), -OCH 2 (cyclopropyl), -OCH 2 (methylcyclopropyl), -OCH 2 (methylazetidinyl), -OCH 2 (oxetanyl), -OCH 2 (tetrahydropyranyl), -OCH 2 (thiazolyl), or -OCH 2 CH 2 (cyclopropyl); and
R 4b is -CN, -CH 3 , -CH 2 CH 3 , -CH 2 CH 2 CH 3 , or -CH(CH 3 ) 2 .
6 . The compound according to claim 1 or a salt thereof, having the structure:
R4 is -CHR 4a R 4b ;
R 4a is phenyl, pyridinyl, or oxadiazolyl, each substituted zero to 3 substituents independently selected from with F, Cl, Br, -CN, -CH 3 , -C(CH 3 ) 3 , -CHF 2 , -CF 3 , -OCH 3 , -OCH(CH 3 ) 2 , -OCHF 2 , -OCF 3 , -OCH 2 (cyclopropyl), and cyclopropyl; and
R 4b is phenyl, isoxazolyl, thiazolyl, or triazolyl, each substituted with 0 to 3 substituents independently selected from F, Cl, Br, -CH 3 , -C(CH 3 ) 3 , -CF 3 , -OCF 3 , and cyclopropyl.
7 . The compound according to claim 1 or a salt thereof, having the structure:
wherein:
R 5a is -CH 3 or -CH 2 CH 3 ; and
R 5c is -CH 3 , -CH 2 CH 3 , or -CH 2 CH 2 CH 3 .
8 . The compound according to claim 1 or a salt thereof, having the structure:
or
.
9 . The compound according to claim 1 or a salt thereof, wherein said compound is:
.
10 . The compound according to claim 1 or a salt thereof, wherein said comnound is:
4-((2S,SR)-2,5-diethyl-4-((4-fluorophenyl)(5-(trifluoromethyl)pyridin-2-yl)methyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (1-2);
4-((2s, 5r)-4-(1-(4-cyclopropylphenyl)ethyl)-2, 5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1, 2-dihydropyrido[3, 2-d]pyrimidine-6-carbonitrile (3-4);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (5-6);
4-((2S,SR)-5-ethyl-2-methyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (7-8);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethoxy)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (9-10);
4-((2S,5R)-2,5-diethyl-4-(1-(2-fluoro-4-methoxyphenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (11-12);
4-((2S,5R)-4-((2,2-difluorobenzo[d][1,3]dioxol-5-yl)methyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (13);
4-((2S,5R)-4-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (14-15);
4-((2S,5R)-2,5-diethyl-4-(1-(4-methoxyphenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (16-17);
4-((2S,5R)-2,5-diethyl-4-(1-(4-isopropoxyphenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (18-19);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (20-21);
4-((2S,5R)-2,5-diethyl-4-(4-(trifluoromethoxy)benzyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (22);
4-((2S,5R)-4-(1-(4-(cyclopropylmethoxy)phenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (23-24);
4-((2S,5R)-2,5-diethyl-4-(1-(2-fluoro-4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (25-26);
4-((2S,5R)-2,5-diethyl-4-(2-fluoro-4-(trifluoromethoxy)benzyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (27);
4-((2S,5R)-4-(1-(4-cyclopropylphenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (28-29);
4-((2S,5R)-2,5-diethyl-4-(1-(3-fluoro-4-(trifluoromethoxy)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (30-31);
4-((2S,5R)-4-(1-(4-(cyclopropylmethoxy)-2-fluorophenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (32-33);
4-((2S,5R)-2,5-diethyl-4-((4-fluorophenyl)(isoxazol-3-yl)methyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (34-35);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethoxy)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (36-37);
4-((2S,5R)-2,5-diethyl-4-(1-(2-fluoro-4-(trifluoromethoxy)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (38-39);
4-((2S,SR)-4-(1-(4-cyclopropyl-2-fluorophenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (40-41);
4-((2S,5R)-4-((5-cyclopropylisoxazol-3-yl)(4-(trifluoromethoxy)phenyl)methyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (42-43);
4-((2S,5R)-2,5-diethyl-4-(1-(6-(trifluoromethyl)pyridin-3-yl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (44-45);
4-((2S,SR)-5-ethyl-4-((4-fluorophenyl)(5-(trifluoromethyl)pyridin-2-yl)methyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (46-47);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-(trifluoromethoxy)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (48-49);
4-((2S,SR)-4-((4-cyclopropylthiazol-2-yl)(4-fluorophenyl)methyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (50-51);
4-((2S,5R)-5-ethyl-4-(1-(4-isopropoxyphenyl)ethyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (52-53);
4-((2S,5R)-5-ethyl-2-methyl-4-(4-(trifluoromethoxy)benzyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (54);
4-((2S,5R)-4-((2,2-difluorobenzo[d][1,3]dloxol-5-yl)methyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (55);
4-((2S,SR)-5-ethyl-4-(1-(4-methoxyphenyl)ethyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (56-57);
4-((2S,5R)-5-ethyl-4-(1-(2-fluoro-4-(trifluoromethyl)phenyl)ethyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (58-59);
4-((2S,5R)-4-(1-(4-cyanophenyl)ethyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (60-61);
4-((2S,5R)-5-ethyl-4-(2-fluoro-4-(trifluoromethoxy)benzyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (62);
4-((2S,5R)-4-(1-(4-cyclopropylphenyl)ethyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (63-64);
4-((2S,SR)-5-ethyl-4-((4-fluorophenyl)(6-(trifluoromethyl)pyridin-2-yl)methyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (65-66);
4-((2S,5R)-4-(1-(4-(cyclopropylmethoxy)phenyl)ethyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (67-68);
4-((2S,SR)-4-(1-(4-(cyclopropylmethoxy)-2-fluorophenyl)ethyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (69-70);
4-((2S,5R)-4-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)ethyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (71-72);
4-((2S,SR)-5-ethyl-4-((4-fluorophenyl)(isoxazol-3-yl)methyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (73-74);
4-((2S,SR)-4-((5-cyclopropylpyridin-2-yl)(4-fluorophenyl)methyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (75-76);
4-((2S,5R)-4-(1-(4-(difluoromethoxy)phenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (77-78);
4-((2S,5R)-4-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (79-80);
4-((2S,SR)-5-ethyl-4-(1-(2-fluoro-4-(trifluoromethoxy)phenyl)ethyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (81-82);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-(trifluoromethoxy)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (83-84);
4-((2S,SR)-5-ethyl-4-(1-(2-fluoro-4-(trifluoromethoxy)phenyl)propyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (85-86);
4-((2S,5R)-5-ethyl-4-((4-fluorophenyl)(pyridin-2-yl)methyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (87-88);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-(trifluoromethyl)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (89-90);
4-((2S,5R)-4-(1-(4-cyclopropyl-2-fluorophenyl)ethyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (91-92);
4-((2S,5R)-5-ethyl-2-methyl-4-(pyridin-2-yl(4-(trifluoromethoxy)phenyl)methyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (93-94);
4-((2S,5R)-4-((4-chlorophenyl)(pyridin-2-yl)methyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (95-96);
4-((2S,SR)-5-ethyl-4-((4-fluorophenyl)(6-(trifluoromethyl)pyridin-3-yl)methyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (97-98);
4-((2S,5R)-4-((5-cyclopropylisoxazol-3-yl)(4-(trifluoromethoxy)phenyl)methyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (99-100);
4-((2S,5R)-4-((5-cyclopropylisoxazol-3-yl)(4-fluorophenyl)methyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (101-102);
4-((2S,SR)-4-((2-cyclopropylthiazol-5-yl)(4-fluorophenyl)methyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (103-104);
6-chloro-4-((2S,SR)-4-((3-cyclopropyl-1,2,4-oxadiazol-5-yl)(4-fluorophenyl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (105);
4-((2S,SR)-4-((3-cyclopropyl-1,2,4-oxadiazol-5-yl)(4-fluorophenyl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (106-107);
4-((2S,5R)-4-((3-(tert-butyl)-1,2,4-oxadiazol-5-yl)(4-fluorophenyl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (108-109);
4-((2S,SR)-4-((3-cyclopropyl-1,2,4-oxadiazol-5-yl)(4-fluorophenyl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (110-111);
4-((2S,SR)-4-((3-cyclopropyl-1,2,4-oxadiazol-5-yl)(4-fluorophenyl)methyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (112-113);
4-((2S,SR)-2-ethyl-4-((4-fluorophenyl)(5-(trifluoromethyl)pyridin-2-yl)methyl)-5-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (114-115);
4-((2S,5R)-2-ethyl-5-methyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (116-117);
4-((2S,5R)-2-ethyl-4-(1-(2-fluoro-4-(trifluoromethyl)phenyl)ethyl)-5-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (118-119);
4-((2S,SR)-2-ethyl-4-((4-fluorophenyl)(6-(trifluoromethyl)pyridin-2-yl)methyl)-5-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (120-121);
4-((2S,5R)-2-ethyl-5-methyl-4-(1-(4-(trifluoromethoxy)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (122-123);
4-((2S,SR)-4-(bis(4-fluorophenyl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (124-125);
4-((2S,SR)-4-((4-fluorophenyl)(5-(trifluoromethyl)pyridin-2-yl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (126-127);
4-((2S,5R)-4-(1-(4-fluorophenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (128-129);
4-((2S,5R)-2,5-dimethyl-4-(3,4,5-trifluorobenzyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (130);
4-((2S,5R)-2,5-dimethyl-4-(1-(4-(trifluoromethoxy)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (131-132);
4-((2S,5R)-4-(3,4-difluorobenzyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (133);
4-((2S,5R)-4-(2-chloro-4,5-difluorobenzyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (134);
4-((2S,5R)-4-((2,2-difluorobenzo[d][1,3]dioxol-5-yl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (135);
4-((2S,5R)-4-(2-chloro-4-fluorobenzyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (136);
4-((2S,5R)-4-(4-isopropylbenzyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (137);
4-((2S,5R)-2,5-dimethyl-4-(1-(3,4,5-trifluorophenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (138-139);
4-((2S,5R)-2,5-dimethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (140-141);
4-((2S,SR)-4-(1-(2-fluoro-4-(trifluoromethoxy)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (142-143);
4-((2S,5R)-4-(1-(2,4-difluorophenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (144-145);
4-((2S,SR)-4-(1-(4-chloro-2-fluorophenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (146-147);
4-((2S,5R)-4-(1-(3,4-difluorophenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (148-149);
4-((2S,SR)-4-(1-(2-fluoro-4-(trifluoromethyl)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (150-151);
4-((2S,5R)-4-(1-(2-fluoro-4-(trifluoromethoxy)phenyl)propyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (152-153);
4-((2S,5R)-2,5-dimethyl-4-(1-(4-(trifluoromethoxy)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (154-155);
4-((2S,5R)-4-(1-(4-(difluoromethoxy)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (156-157);
4-((2S,SR)-4-((4-cyclopropylthiazol-2-yl)(4-fluorophenyl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (158-159);
4-((2S,SR)-4-(1-(3-fluoro-4-(trifluoromethoxy)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (160-161);
4-((2S,SR)-4-((4-fluorophenyl)(isoxazol-3-yl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (162-163);
4-((2S,SR)-4-((5-cyclopropylisoxazol-3-yl)(4-(trifluoromethoxy)phenyl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (164-165);
4-((2S,5R)-4-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (166-167);
4-((2S,5R)-4-(1-(4-cyclopropyl-2-fluorophenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (168-169);
4-((2S,5R)-4-((4-fluorophenyl)(2-(trifluoromethyl)thiazol-4-yl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (170-171);
6-chloro-4-((2S,5S)-5-(hydroxymethyl)-2-methyl-4-(1-(4-(trifluoromethyl)phenyl) ethyl)piperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (172);
6-chloro-4-((2S,5S)-5-(methoxymethyl)-2-methyl-4-(1-(4-(trifluoromethyl)phenyl) ethyl)piperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (173);
4-((2S,5S)-5-(methoxymethyl)-2-methyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (174-175);
4-((25,5S)-5-(methoxymethyl)-2-methyl-4-(1-(4-(trifluoromethoxy)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (176-177);
4-((2S,5S)-4-((4-fluorophenyl)(5-(trifluoromethyl)pyridin-2-yl)methyl)-5-(methoxymethyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyhdo[3,2-d] pyrimidine-6-carbonitrile (178-179);
6-chloro-4-((2S,5S)-4-((4-fluorophenyl)(5-(trifluoromethyl)pyridin-2-yl)methyl)-5-(hydroxymethyl)-2-methylpiperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (180);
4-((2S,5S)-4-((4-fluorophenyl)(5-(trifluoromethyl)pyridin-2-yl)methyl)-5-(hydroxymethyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d] pyrimidine-6-carbonitrile (181-182);
4-((2S,5S)-5-(hydroxymethyl)-2-methyl-4-(1-(4-(trifluoromethoxy)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (183-184);
4-((2S,5R)-4-(4-(cyclopropylmethoxy)benzyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (185);
6-chloro-4-((2S,5R)-2,5-diethyl-4-(1-(4-((1-hydroxy-2-methylpropan-2-yl)oxy) phenyl)ethyl)piperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (186);
6-chloro-4-((2S,5R)-2,5-diethyl-4-(1-(4-((1-methoxy-2-methylpropan-2-yl)oxy) phenyl)ethyl)piperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (187);
6-chloro-4-((2S,5R)-2,5-diethyl-4-(1-(4-((1-methoxy-2-methylpropan-2-yl)oxy) phenyl)ethyl)piperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (188-189);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(methoxy-d 3 )phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (190-191);
4-((2S,5R)-4-(1-(6-cyclopropylpyridin-3-yl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (192-193);
4-((2S,5R)-2,5-diethyl-4-(1-(2-morpholino-4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (194-195);
4-((2S,5R)-4-(1-(4-(2-cyanopropan-2-yl)phenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (196-197);
4-((2S,5R)-4-(1-(4-(cyclopropylmethoxy)-2-fluorophenyl)propyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (198-199);
4-((2S,5R)-4-(1-(4-cyclopropylphenyl)propyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (200-201);
4-((2S,5R)-2,5-diethyl-4-(1-(3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazol-5-yl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (202-203);
4-((2S,5R)-2,5-diethyl-4-(2-fluoro-4-(trifluoromethyl)benzyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (204);
4-((2S,5R)-2,5-diethyl-4-(4-(trifluoromethyl)benzyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (205);
4-((2S,5R)-2,5-diethyl-4-(1-(2-morpholinopyrimidin-5-yl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (206-207);
4-((2S,5R)-2,5-diethyl-4-(l-(4-(methoxy-d 3 )phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (208-209);
4-((2S,5R)-2,5-diethyl-4-((4-fluorophenyl)(2-(trifluoromethyl)thiazol-4-yl)methyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (210-211);
4-((2S,5R)-2,5-diethyl-4-(1-(4-methoxyphenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (212-213);
4-((2S,5R)-2,5-diethyl-4-(1-(6-methoxypyridin-2-yl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (214-215);
4-((2S,5R)-4-(1-(4-(cyclopropylmethoxy)phenyl)propyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (216-217);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(1-methylcyclopropyl)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (218-219);
4-((2S,5R)-4-(1-(4-cyanophenyl)propyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (220-221);
4-((2S,5R)-4-(1-(4-(difluoromethoxy)phenyl)propyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (222-223);
4-((2S,5R)-2,5-diethyl-4-(1-(6-(trifluoromethyl)pyridin-3-yl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (224-225);
4-((2S,5R)-2,5-diethyl-4-(1-(2-(trifluoromethyl)pyrimidin-5-yl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (226-227);
4-((2S,5R)-2,5-diethyl-4-(1-(6-methylpyridin-3-yl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (228-229);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(2-oxopyrrolidin-1-yl)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (230-231);
4-((2S,5R)-4-(1-(4-(difluoromethoxy)-2-fluorophenyl)propyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (232-233);
4-((2S,5R)-2,5-diethyl-4-(1-(4-isopropoxyphenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (234-235);
4-((2S,5R)-2,5-diethyl-4-(1-(p-tolyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (236-237);
4-((2S,5R)-4-(1-(4-chloro-2-fluorophenyl)propyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (238-239);
4-((2S,5R)-4-(1-(6-(difluoromethoxy)pyridin-2-yl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (240-241);
4-((2S,5R)-4-(4-cyclopropyl-2-fluorobenzyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (242);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)butyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (243-244);
4-((2S,5R)-2,5-diethyl-4-(1-(6-(trifluoromethoxy)pyridin-2-yl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (245-246);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(2-morpholinopropan-2-yl)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (247-248);
4-((2S,5R)-2,5-diethyl-4-(1-(4-methoxyphenyl)-2-methylpropyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (249-250);
4-((2S,5R)-4-(1-(4-(2-cyanopropan-2-yl)phenyl)propyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (251-252);
4-((2S,5R)-4-(1-(2-cyclopropylbenzo[d]oxazol-5-yl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (253-254);
4-((2S,5R)-4-(1-(4-cyclopropoxyphenyl)propyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (255-256);
4-((2S,5R)-4-((6-(difluoromethyl)pyridin-2-yl)(4-fluorophenyl)methyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (257-258);
ethyl (1S,2S)-2-(4-(1-((2R,5S)-4-(6-cyano-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d] pyrimidin-4-yl)-2,5-diethylpiperazin-1-yl)ethyl)phenoxy)cyclopropane-1-carboxylate (259-260);
4-((2S,5R)-2,5-diethyl-4-(1-(4-isopropoxyphenyl)-2-methylpropyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (261-262);
4-((2S,5R)-4-(1-(4-(1-cyanocyclopropyl)phenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (263-264);
methyl 4-(1-((2R,5S)-4-(6-cyano-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidin-4-yl)-2,5-diethylpiperazin-1-yl)ethyl)benzoate (265-266);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(morpholinomethyl)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (267-268);
4-((2S,5R)-4-((4,4-difluorocyclohexyl)methyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (269);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(hydroxymethyl)phenyl)ethyl)piperazin-1-yl)- 1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (270-271);
4-((2S,5R)-4-(1-(4-(Bromomethyl)phenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (272);
4-((2S,5R)-2,5-diethyl-4-(1-(4-((4-methoxypiperidin-1-yl)methyl)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (273-274);
4-((2S,5R)-4-(1-(4-((2,2-dimethylmorpholino)methyl)phenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (275-276);
4-((2S,5R)-4-(1-(4-((4,4-difluoropiperidin-1-yl)methyl)phenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (277-278);
4-((2S,5R)-4-(1-(4-((2-oxa-6-azaspiro[3.3]heptan-6-yl)methyl)phenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (279-280);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(piperidin-1-ylmethyl)phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (281-282);
4-((2S,5R)-4-(1-(4-((4-acetylpiperazin-1-yl)methyl)phenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (283-284);
4-((2S,5R)-2,5-diethyl-4-(1-(4-((4-hydroxypiperidin-1-yl)methyl)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (285-286);
4-((2S,5R)-2,5-diethyl-4-(1-(4-((4-methyl-3-oxopiperazin-1-yl)methyl)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (287-288);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(((R)-3-hydroxypiperidin-1-yl)methyl)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (289-290);
4-((2S,5R)-4-(1-(4-(((2S,6R)-2,6-dimethylmorpholino)methyl)phenyl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (291-292);
4-((2S,5R)-4-((3-bromo-1-methyl-1H-1,2,4-triazol-5-yl)(4-fluorophenyl)methyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (293);
4-((2S,5R)-4-((3-cyclopropyl-1-methyl-1H-1,2,4-triazol-5-yl)(4-fluorophenyl) methyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (294-295);
4-((2S,5R)-5-ethyl-4-((4-fluorophenyl)(2-(trifluoromethyl)thiazol-4-yl)methyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (296-297);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazol-5-yl) ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (298-299);
4-((2S,5R)-4-(1-(4-cyclopropylphenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (300-301);
4-((2S,5R)-4-(1-(4-cyclopropyl-2-fluorophenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (302-303);
4-((2S,5R)-5-ethyl-4-(1-(4-methoxyphenyl)propyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (304-305);
4-((2S,5R)-4-(1-(4-ethoxyphenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (306-307);
4-((2S,5R)-4-(1-(4-(cyclopropylmethoxy)phenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (308-309);
4-((2S,5R)-4-(4-ethoxybenzyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (310);
4-((2S,5R)-4-(1-(4-cyclopropoxyphenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (311-312);
4-((2S,5R)-5-ethyl-4-(1-(4-methoxyphenyl)-2-methylpropyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (313-314);
4-((2S,5R)-4-((6-(difluoromethyl)pyridin-2-yl)(4-fluorophenyl)methyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (315-316);
4-((2S,5R)-4-(1-(4-(2-cyanopropan-2-yl)phenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (317-318);
4-((2S,5R)-4-(1-(3,4-difluorophenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (319-320);
4-((2S,5R)-4-(1-(4-bromophenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (321-322);
4-((2S,5R)-5-ethyl-4-(1-(4-isopropoxyphenyl)-2-methylpropyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (323-324);
4-((2S,5R)-4-(1-(4-(1-cyanocyclopropyl)phenyl)ethyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (325-326);
4-((2S,5R)-4-(1-(4-(cyclopropylmethoxy)-2,6-difluorophenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (327-328);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-(tetrahydro-2H-pyran-4-yl)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (329-330);
4-((2S,5R)-4-(1-(4-(1,3-dioxolan-2-yl)phenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (331-332);
4-((2S,5R)-5-ethyl-4-(1-(4-isopropoxyphenyl)propyl)-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (330-334);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-(3,3,3-trifluoropropoxy)phenyl)propyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (335-336);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-((tetrahydro-2H-pyran-4-yl)methoxy)phenyl) propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (337-338);
4-((2S,5R)-4-(l-(4-(2-cyclopropylethoxy)phenyl)propyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (339-340);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-(oxetan-3-ylmethoxy)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (341-342);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-((1-methylazetidin-3-yl)methoxy)phenyl)propyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (343-344);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-((1-methylcyclopropyl)methoxy)phenyl)propyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (345-346);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-(thiazol-2-ylmethoxy)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (347-348);
4-((2S,5R)-4-(1-(3-bromo-4-(trifluoromethyl)phenyl)ethyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (349);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(3-(morphofinomethyl)-4-(trifluoromethyl)phenyl) ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (350-351);
4-((2S,5R)-4-(1-(3-((dimethylamino)methyl)-4-(trifluoromethyl)phenyl)ethyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (352-353);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(3-(piperidin-1-ylmethyl)-4-(trifluoromethyl) phenyl)ethyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (354-355);
4-((2S,5R)-4-(1-(3-cyano-4-(trifluoromethyl)phenyl)ethyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (356-357);
4-((2S,SR)-4-(1-(4-(aminomethyl)phenyl)ethyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (358);
methyl (4-(1-((2R,5S)-4-(6-cyano-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d] pyrimidin-4-yl)-2-ethyl-5-methylpiperazin-1-yl)ethyl)benzyl)carbamate (359-360);
4-((2S,5R)-4-(1-(3-cyclopropyl-1,2,4-oxadiazol-5-yl)ethyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (361-362);
4-((2S,5R)-4-(1-(3-cyclopropyl-1,2,4-oxadiazol-5-yl)propyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (363-364);
4-((2S,5R)-4-(1-(3-cyclopropyl-1,2,4-oxadiazol-5-yl)-2-methylpropyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (365-366);
4-((2S,5R)-4-(1-(5-cyclopropyl-1,3,4-oxadiazol-2-yl)-2-methylpropyl)-5-ethyl-2-methylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (367-368);
2-((2R,5S)-4-(6-chloro-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidin-4-yl)-2,5-diethylpiperazin-1-yl)-2-(4-fluorophenyl)acetonitrile (369);
6-chloro-4-((2S,5R)-4-((5-cyclopropyl-1,2,4-oxadiazol-3-yl)(4-fluorophenyl)methyl)-2,5-diethylpiperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (370);
4-((2S,5R)-4-((5-cyclopropyl-1,2,4-oxadiazol-3-yl)(4-fluorophenyl)methyl)-2,5-diethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (371-372);
4-((2S,5R)-4-(bis(4-chlorophenyl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (373-374);
4-((2S,5R)-4-((4-cyanophenyl)(4-fluorophenyl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (375);
4-((2S,5R)-4-(1-(4-((2-cyanopropan-2-yl)oxy)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (376-377);
4-((2S,5R)-4-(1-(4-cyclopropylphenyl)propyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (378-379);
4-((2S,5R)-4-(1-(4-cyclopropyl-2-fluorophenyl)propyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (380-381);
6-chloro-4-((2S,5R)-4-(1-(4-(hydroxymethyl)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (382);
4-((2S,5R)-4-(1-(4-(hydroxymethyl)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (383);
4-((2S,5R)-4-(1-(4-(bromomethyl)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (384);
4-((2S,5R)-4-(1-(4-((2,2-dimethylmorpholino)methyl)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (385-386);
4-((2S,5R)-4-(1-(4-(((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptan-5-yl)methyl) phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d] pyrimidine-6-carbonitrile (387-388);
4-((2S,5R)-4-(1-(4-(((2S,6R)-2,6-dimethylmorpholino)methyl)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (389);
4-((2S,5R)-4-(1-(4-((4,4-difluoropiperidin-1-yl)methyl)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (390-391);
4-((2S,5R)-4-(1-(4-((2-oxa-6-azaspiro[3.3]heptan-6-yl)methyl)phenyl)ethyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (392-393);
6-chloro-1-methyl-4-((2S,5R)-2-methyl-5-propyl-4-(1-(4-(trifluoromethyl)phenyl) ethyl)piperazin-1-yl)pyrido[3,2-d]pyrimidin-2(1H)-one (394);
1-methyl-4-((2S,5R)-2-methyl-5-propyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl) piperazin-1-yl)-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (395-396);
6-chloro-4-((2S,5S)-5-(methoxymethyl)-2-methyl-4-(1-(4-(trifluoromethyl)phenyl) propyl)piperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (397);
4-((2S,5S)-5-(methoxymethyl)-2-methyl-4-(1-(4-(trifluoromethyl)phenyl)propyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (398-399);
4-((25,5S)-5-(ethoxymethyl)-2-methyl-4-(1-(4-(trifluoromethyl)phenyl)propyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (400-401);
4-((2S,5S)-5-(azidomethyl)-2-methyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl) piperazin-1-yl)-6-chloro-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (402);
4-((2S,5R)-5-(aminomethyl)-2-methyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl) piperazin-1-yl)-6-chloro-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (403);
4-((2S,5S)-5-(methoxymethyl)-2-methyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (404-405);
4-((2R,5R)-2-(hydroxymethyl)-5-methyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (406-407);
6-chloro-4-((2R,5R)-2-(methoxymethyl)-5-methyl-4-(1-(4-(trifluoromethyl)phenyl) ethyl)piperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (408);
4-((2R,5R)-2-(methoxymethyl)-5-methyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (409-410);
4-((2R,5R)-5-ethyl-2-(hydroxymethyl)-4-(1-(4-(trifluoromethyl)phenyl)ethyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (411-412);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (413-414);
4-((2S,5R)-2,5 diethyl-4-(1-(4-(trifluoromethyl)phenyl)propyl)piperazin-1-yl)-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (415-416);
6-chloro-4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl) piperazin-1-yl)-1-(methyl-d 3 )pyrido[3,2-d]pyrimidin-2(1H)-one (417-418);
4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-1-(methyl-d 3 )-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (419-420);
6-chloro-4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)propyl)piperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (421-422);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-6-(hydroxymethyl)-1-methylpyrido[3,2- d ]pyrimidin-2(1H)-one (423);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-6-(methoxymethyl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (424-425);
6-chloro-4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (426);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-6-methoxy-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (427-428);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-6-ethoxy-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (429-430);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-6-(2-(dimethylamino)ethoxy)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (431-432);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-6-(2-methoxyethoxy)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (433-434);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)propyl)piperazin-1-yl)-6-methoxy-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (435-436);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)propyl)piperazin-1-yl)-6-ethoxy-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (437-438);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-6-(difluoromethyl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (439-440);
6-(difluoromethyl)-4-((2S,5R)-5-ethyl-2-methyl-4-(1-(4-(trifluoromethyl)phenyl) ethyl)piperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (441-442);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-6-hydroxy-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (443);
4-((2S,5R)-2,5-diethyl-4-(1-(4-(trifluoromethyl)phenyl)ethyl)piperazin-1-yl)-6-(difluoromethoxy)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (444-445);
6-chloro-4-((2S,5R)-2,5-dimethyl-4-(1-(3-(trifluoromethyl)bicyclo[1.1.1]pentan-1-yl)propyl)piperazin-1-yl)-1-methylpyrido[3,2-d]pyrimidin-2(1H)-one (diastereomeric mixture) (446);
4-((2S,5R)-2,5-dimethyl-4-(1-(3-(trifluoromethyl)bicyclo[1.1.1]pentan-1-yl)propyl) piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (447-449);
4-((2S,5R)-4-((4-fluorophenyl)(3-(trifluoromethyl)bicyclo[1.1.1]pentan-1-yl)methyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (450-452);
4-((2S,5R)-4-(1-cyclopropylpropyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (453-455);
4-((2S,5R)-4-(1-(3,3-difluorocyclobutyl)propyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (456-458); or
4-((2S,5R)-4-(1-(4,4-difluorocyclohexyl)propyl)-2,5-dimethylpiperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile (459-460).
11 . The compound according to claim 1 or a salt thereof, having the structure:
.
12 . The compound according to claim 1 or a salt thereof, having the structure:
.
13 . The compound according to claim 12 or a salt thereof, wherein: R 1 is -CN;
R 2 is -CH 3 , or -CD 3 ;
R 4 is -CHR 4a R 4b ; and
R 4b is -CH 3 , -CH 2 CH 3 , or -CH 2 CH 2 CH 3 .
14 . The compound according to claim 1 having the structure:
or a salt thereof.
15 . The compound according to claim 1 or a salt thereof, having the structure:
.
16 . The compound according to claim 1 having the structure:
or a salt thereof.
17 . The compound according to claim 1 or a salt thereof, having the structure:
.
18 . The compound according to claim 1 having the structure:
or a salt thereof.
19 . The compound according to claim 1 or a salt thereof, having the structure:
.
20 . The compound according to claim 1 or a salt thereof, wherein said compound is:
4-((2S,5R)-2,5-diethyl-4-((S)-1-(4-(trifluoromethyl)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile;
4-((2S,5R)-2,5-diethyl-4-((R)-1-(4-(trifluoromethyl)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile;
4-((2S,5R)-2,5-diethyl-4-((S)-1-(4-(trifluoromethoxy)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile;
4-((2S,5R)-2,5-diethyl-4-((R)-1-(4-(trifluoromethoxy)phenyl)propyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile;
4-((2S,5R)-2,5-diethyl-4-((S)-1-(4-(trifluoromethyl)phenyl)butyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile; or
4-((2S,5R)-2,5-diethyl-4-((R)-1-(4-(trifluoromethyl)phenyl)butyl)piperazin-1-yl)-1-methyl-2-oxo-1,2-dihydropyrido[3,2-d]pyrimidine-6-carbonitrile.
21 . A compound having the structure:
or a salt thereof.
22 . A compound having the structure:
.
23 . A salt of the compound having the structure:
.
24 . A compound having the structure:
or a salt thereof.
25 . A compound having the structure:
.
26 . A salt of the compound having the structure:
.
27 . A compound having the structure:
or a salt thereof.
28 . A compound having the structure:
.
29 . A salt of the compound having the structure:
.
30 . A pharmaceutical composition comprising a compound according to claim 1 or a pharmaceutically-acceptable salt thereof; and a pharmaceutically acceptable carrier.
31 . A pharmaceutical composition comprising a compound according to claim 22 ; and a pharmaceutically acceptable carrier.
32 . A pharmaceutical composition comprising the salt of the compound according to claim 24 ; and a pharmaceutically acceptable carrier; wherein the salt of the compound is a pharmaceutically acceptable salt.
33 . A pharmaceutical composition comprising a compound according to claim 25 ; and a pharmaceutically acceptable carrier.
34 . A pharmaceutical composition comprising the salt of the compound according to claim 26 ; and a pharmaceutically acceptable carrier; wherein the salt of the compound is a pharmaceutically acceptable salt.
35 . A pharmaceutical composition comprising a compound according to claim 28 ; and a pharmaceutically acceptable carrier.
36 . A pharmaceutical composition comprising the salt of the compound according to claim 29 ; and a pharmaceutically acceptable carrier; wherein the salt of the compound is a pharmaceutically acceptable salt.
37 . A method for treating a disease comprising administering to a subject in need thereof a therapeutically-effective amount of at least one compound according to claim 1 or a pharmaceutically acceptable salt thereof, wherein the disease is cancer or viral infections.
38 . The method according to claim 13 , wherein the cancer is selected from cancer of the colon, pancreatic cancer, breast cancer, prostate cancer, lung cancer, ovarian cancer, cervical cancer, renal cancer, cancer of the head and neck, lymphoma, leukemia, and melanoma.
39 . A method for treating a disease comprising administering to a subject in need thereof a therapeutically-effective amount of the compound according to claim 22 , wherein the disease is cancer or viral infections.
40 . The method according to claim 39 , wherein the cancer is selected from cancer of the colon, pancreatic cancer, breast cancer, prostate cancer, lung cancer, ovarian cancer, cervical cancer, renal cancer, cancer of the head and neck, lymphoma, leukemia, and melanoma.
41 . A method for treating a disease comprising administering to a subject in need thereof a therapeutically-effective amount of the salt of the compound according to claim 23 , wherein the disease is cancer or viral infections; and the salt is a pharmaceutically acceptable salt.
42 . The method according to claim 41 , wherein the cancer is selected from cancer of the colon, pancreatic cancer, breast cancer, prostate cancer, lung cancer, ovarian cancer, cervical cancer, renal cancer, cancer of the head and neck, lymphoma, leukemia, and melanoma.
43 . A method for treating a disease comprising administering to a subject in need thereof a therapeutically-effective amount of the compound according to claim 25 , wherein the disease is cancer or viral infections.
44 . The method according to claim 43 , wherein the cancer is selected from cancer of the colon, pancreatic cancer, breast cancer, prostate cancer, lung cancer, ovarian cancer, cervical cancer, renal cancer, cancer of the head and neck, lymphoma, leukemia, and melanoma.
45 . A method for treating a disease comprising administering to a subject in need thereof a therapeutically-effective amount of the salt of the compound according to claim 26 , wherein the disease is cancer or viral infections; and the salt is a pharmaceutically acceptable salt.
46 . The method according to claim 46 , wherein said cancer is selected from cancer of the colon, pancreatic cancer, breast cancer, prostate cancer, lung cancer, ovarian cancer, cervical cancer, renal cancer, cancer of the head and neck, lymphoma, leukemia, and melanoma.
47 . A method for treating a disease comprising administering to a subject in need thereof a therapeutically-effective amount of the compound according to claim 28 , wherein the disease is cancer or viral infections.
48 . The method according to claim 47 , wherein said cancer is selected from cancer of the colon, pancreatic cancer, breast cancer, prostate cancer, lung cancer, ovarian cancer, cervical cancer, renal cancer, cancer of the head and neck, lymphoma, leukemia, and melanoma.
49 . A method for treating a disease comprising the administration to a subject in need thereof a therapeutically-effective amount of the salt of the compound according to claim 29 , wherein the disease is cancer or viral infections; and the salt is a pharmaceutically acceptable salt.
50 . The method according to claim 49 , wherein the cancer is selected from cancer of the colon, pancreatic cancer, breast cancer, prostate cancer, lung cancer, ovarian cancer, cervical cancer, renal cancer, cancer of the head and neck, lymphoma, leukemia and melanoma.Cited by (0)
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