Synonyms: Dichotine,2-deoxy-2,21-epoxy-, (21a)- (8CI); 2,21-Dehydrodichotine;5,15a-Epoxy-3,8a-methano-4H-furo[2'',3'':6',7']azonino[4',5':4,5]pyrrolo[1,2,3-de][1,4]benzoxazine-14,17(13H)-dione,2,3,3a,5,6,7,8,15b-octahydro-13-methoxy-2,6-dimethyl-, [2R-(2a,3a,3ab,5b,8aa,13a,15ab,15bb)]-; Dichotine, 2,21-dehydro-