74148-45-1 (1aS,8aR,8bS)-6,8a-dimethoxy-1,5-dimethyl-8-methylidene-1,1a,2,8,8a,8b-hexahydroazireno[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione 87876-24-2 N-{2-hydroxy-3-[2-hydroxy-23-(1-hydroxyethyl)-6,26-dimethyl-4,7,19,22,25,28,31-heptaoxo-1,2,3,3a,4,5,6,7,8,9,10,15,18,19-tetradecahydro-17H-18,9-(epiminoethanoiminoethanoiminoethanoiminomethano)pyrrolo[1',2':5,6][1,5,8,11]thiatriazacyclopentadecino[15,14-