#$%^&*AU2012324012A120130627.pdf#####ABSTRACT The present invention is directed to Buprenorphine Analog compounds of the Formula I, Formula IA or Formula IB shown below, wherein R , Ria, R2, R', Rla, Rlb G, X, Z, Y, and A ED are as defined herein. AP RR Ae RI R 1-a Rla R31 RaG Rab G R2 Z G R Z Y 8 R8 (IA) (I)B AP R1 :kR38.,R3b ZG R2 X R (mB) Compounds of the Invention are useful for treating pain, constipation, and other conditions modulated by activity of opioid and ORL-1 receptors.