| 摘要 |
The present invention is directed to Buprenorphine Analog compounds of the Formula I, Formula II or Formula III shown below, wherein R1, R2, R8, R3, R3a, R3b, X, Z and Y are as defined herein. Compounds of the Invention are useful for treating pain and other conditions modulated by activity of opioid and ORL1 receptors. |
