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