1-((5.ALPHA.,7.ALPHA.)-4,5-EPOXY-6-METHOXY-17-METHYL-3-(PHENYLMETHOXY)-6,14-ETHENOMORPHINAN-7-YL)ETHANONE
1-((5.alpha.,7.alpha.)-4,5-epoxy-6-methoxy-17-methyl-3-(phenylmethoxy)-6,14-ethenomorphinan-7-yl)ethanone