| 摘要 |
Compounds of Formula (I) wherein R1 is aryl, cyclohexyl or heterocyclyl, or (C1-4)alkyl substituted by aryl, cyclohexyl or heterocyclyl, R2 is defined heterocyclyl, R3 is alkyl, aryl, cyclohexyl or heterocyclyl, or (C1-4)alkyl substituted by aryl, cyclohexyl or heterocyclyl, R4 is H or alkyl, or R3 and R4 together with the carbon atom to which they are attached are cycloalkyl fused with aryl, and their use as pharmaceuticals. |
