KT 90

6β-(Acetylthio)-17-(cyclopropylmethyl)-7,8-didehydro-4,5α-epoxymorphinan-3-ol acetate

(-)-3-(Acetyloxy)-6β-(acetylthio)-17-[(cyclopropyl)methyl]-7,8-didehydro-4,5α-epoxymorphinan