Synonyms: [11b,11'b(12H,12'H)-Bi-4,12a-(iminomethano)-12aH-[1,2,3,5]trithiazepino[5',4':1,5]pyrrolo[2,3-b]indole]-5,5',13,13'(4H,4'H)-tetrone,6a,6'a,7,7'-tetrahydro-4,4'-bis(hydroxymethyl)-14,14'-dimethyl-,(4S,4'S,6aR,6'aR,11bR,11'bR,12aS,12'aS)- (9CI)