CPC C07D 207/26 (2013.01) [C07D 227/087 (2013.01)] | 13 Claims |
1. A compound of the formula (I):
or a pharmaceutically acceptable salt thereof, wherein:
R1 is -alkylene-N(H)C(O)CF3
wherein the alkylene can be substituted with alkyl;
R2 is alkyl;
R3 is 3 to 12-membered heterocyclyl; and
R4 is alkyl;
or a pharmaceutically acceptable salt thereof.
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11. A pharmaceutical composition comprising a therapeutically effective amount of one or more compounds of claim 1 and at least one pharmaceutically acceptable excipient.
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