| CPC C07D 403/12 (2013.01) [C07D 413/12 (2013.01); C07D 413/14 (2013.01); C07D 471/04 (2013.01); C07D 487/04 (2013.01); C07D 491/04 (2013.01); C07D 491/044 (2013.01); C07D 491/048 (2013.01); C07D 491/052 (2013.01); C07D 491/10 (2013.01); C07D 495/04 (2013.01); C07D 498/04 (2013.01); C07D 519/00 (2013.01)] | 15 Claims |
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1. A compound of formula I:
![]() or a pharmaceutically acceptable salt thereof, wherein:
R1 is selected from the group consisting of H and unsubstituted C1-C4 alkyl;
the A ring is phenyl optionally substituted with:
(a) 1 to 3 substituents selected from the group consisting of halogen, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C1-C6 alkoxy, C1-C6 haloalkoxy, C1-C6 thioalkyl, cyano, phenyl, benzyl, CH2—(C3-C6 cycloalkyl) and CH2CH2—(C3-C6 cycloalkyl);
(b) 1 substituent selected from the group consisting of C4-C6 heterocyclyl, C5-C6 heteroaryl, CH2—(C4-C6 heterocyclyl), CH2CH2—(C4-C6 heterocyclyl), CH2—(C5-C6 heteroaryl) and CH2CH2—(C5-C6 heteroaryl); and optionally a second substituent selected from the group consisting of C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 alkoxy and C1-C6 haloalkoxy; or
(c) two adjacent substituents which together form phenyl, C5-C6 heteroaryl, C4-C6 heterocyclyl or C4-C6 cycloalkyl;
X is O or CH2;
Z1 is C;
n is 1; and
![]() is selected from the group consisting of:
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Y is selected from the group consisting of O, S, SO and SO2;
X1, X2 and X3 are each independently N or CH, wherein 1 or 2 of X1, X2 and X3 is N;
X4 and X5 are each independently N or CH;
R5a and R5b are each independently selected from the group consisting of H, C1-C6 alkyl, C3-C6 cycloalkyl, C1-C6 haloalkyl, C1-C6 alkoxy, C1-C6 haloalkoxy, phenyl, benzyl, —CH2(C3-C6 cycloalkyl) and 5 to 6 membered heteroaryl; wherein R5a and R5b together with the carbon to which they are attached may form a 3 to 4 membered cycloalkyl or a 4 membered cycloalkoxy;
R6a and R6b are each independently selected from the group consisting of H, C1-C6 alkyl, C3-C6 cycloalkyl, C1-C6 haloalkyl, C1-C6 alkoxy, C1-C6 haloalkoxy, phenyl, mono- or di-fluorophenyl, benzyl, —CH2(C3-C6 cycloalkyl), and 5 to 6 membered heteroaryl; wherein R6a and R6b together with the carbon to which they are attached may form a 3 to 4 membered cycloalkyl or a 4 membered cycloalkoxy;
wherein, when R5a and R6a are each H, R5b and R6b may together form a 3 or 4 membered cycloalkyl;
and wherein only two of R5a, R5b, R6a and R6b may be other than H in each instance;
R7 is selected from the group consisting of H and unsubstituted C1-C4 alkyl;
R10 is selected from the group consisting of H, C1-C6 alkyl, C3-C6 cycloalkyl, C1-C6 haloalkyl, phenyl and benzyl; and
R11 is selected from the group consisting of H, halogen, C1-C4 alkyl and C1-C4 haloalkyl.
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