16046-18-7 27066-44-0 4117-85-5 Azirino(2',3':3,4)pyrrolo(1,2-a)indole-4,7-dione, 1,1a,2,8,8a,8b-hexahydro-8-(hydroxymethyl)-8a-methoxy-5-methyl-6-(methylamino)-, carbamate (ester)