Compounds useful for the treatment of pain in accord with the following structural diagram,
wherein A, R
1
, b, R
3
, d, R
4
, R
5
, R
6
and R
7
are any of a number of groups as defined in the specification, and pharmaceutical compositions and methods of treatment utilizing such compounds.
以下
化学结构图所示的化合物可用于治疗疼痛,其中A、R1、b、R3、d、R4、R5、R6和R7是规范中定义的许多基团中的任何一个,以及使用这些化合物的制药组合物和治疗方法。