Synonyms: Chaetocin,2,5-de(epidithio)-2,5-(epitrithio)-; 4,12a-(Iminomethano)-12aH-[1,2,3,5]trithiazepino[5',4':1,5]pyrrolo[2,3-b]indole-5,13(4H)-dione,11b-[1,2,3,4,5a,6-hexahydro-3-(hydroxymethyl)-2-methyl-1,4-dioxo-3,11a-epidithio-11aH-pyrazino[1',2':1,5]pyrrolo[2,3-b]indol-10b(11H)-yl]-6a,7,11b,12-tetrahydro-4-(hydroxymethyl)-14-methyl-,[4S-[4a,6aa,11ba(3R*,5aS*,10bS*,11aR*),12aa]]-; Chaetocin B