Role of the spacer in conferring .kappa. opioid receptor selectivity to bivalent ligands related to norbinaltorphimine
作者:P. S. Portoghese、A. Garzon-Aburbeh、H. Nagase、C. E. Lin、A. E. Takemori
DOI:10.1021/jm00108a008
日期:1991.4
analogues of the kappa-selective opioid antagonist norbinaltorphimine (1a, norBNI) were synthesized and tested in an effort to determine the contribution of the spacer to the interaction of bivalentligands at different opioidreceptor types. Both 2 and 3 were found to be selective kappa opioidreceptor antagonists in smooth muscle preparations, and they bound selectively to kappa-recognition sites. The