Elimination of the 4-hydroxyl group of the alkaloids related to morphine—XI
作者:Y.K. Sawa、H. Tada
DOI:10.1016/s0040-4020(01)96351-3
日期:1968.1
Ullmann reaction of 14-hydroxydihydrothebainone followed by sodium liquid ammonia reduction gave (—)-14-hydroxy-3-methoxy-6-oxo-N-methylmorphinan in high yield. Starting from this compound 6-methyl derivatives were synthesized.
displayed moderate binding affinity and selectivity at the μ receptor, with compound 7b showing the highest affinity at this receptor with a Ki value of 40 nM, and 6- and 25-fold selectivity against δ and κ receptors, respectively. Function assays showed that indolopropellanes 7b and 7c possessed full agonistic activity at all the opioidreceptors indicating a different interaction model existed.