| CPC C07D 513/22 (2013.01) [A61K 31/5025 (2013.01); A61K 31/506 (2013.01); A61K 31/5377 (2013.01); A61K 31/5383 (2013.01); A61K 31/553 (2013.01); A61P 35/00 (2018.01); C07D 519/00 (2013.01)] | 27 Claims |
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1. A compound of formula (Ib),
![]() or a pharmaceutically acceptable salt thereof, wherein:
R1 is 2-oxabicyclo[2.1.1]hexanyl,
3-oxabicyclo[3.1.0]hexanyl,
6-bicyclo[3.1.0]hexanyl substituted twice by halogen,
6-tricyclo[3.1.1.03,6]heptanyl,
C3-7cycloalkyl substituted by one, two, or three substituents independently selected from C1-6alkyl, C1-6alkylpyridinyl, C1-6alkylpyrimidinyl, C1-6alkyltetrazolyl, C3-7cycloalkyl, haloC1-6alkyl, halogen, halophenyl, hydroxy, phenyl, pyrazinyl, pyridazinyl, pyridinyl, pyrimidinyl, and thiazolyl, or
tetrahydropyranyl;
R2 is 1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazinyl,
3,4,6,7,9,9a-hexahydro-1H-pyrazino[2,1-c][1,4]oxazinyl,
morpholinyl, or
piperazinyl unsubstituted or substituted by one or more substituents independently selected from C1-6alkoxyC1-6alkyl, C1-6alkyl, C3-7cycloalkyl, haloC1-6alkyl, hydroxyC1-6alkyl, morpholinylC1-6alkyl, oxetanyl, oxopyrrolidinylC1-6alkyl, and tetrahydrofuranyloxyC1-6alkyl;
R3 is H or halogen;
M is C1-6alkylene or O; and
L is C1-6alkylene, hydroxyC1-6alkylene, or haloC1-6alkylene.
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