2-(6-amino-8a-methoxy-5-methyl-4,7-dioxo-1,1a,2,4,7,8,8a,8b-octahydroazireno[2',3':3,4]pyrrolo[1,2-a]indol-8-yl)acetamide InChI=1/C15H18N4O4/c1-5-10(17)13(22)9-6(3-8(16)20)15(23-2)14-7(18-14)4-19(15)11(9)12(5)21/h6-7,14,18H,3-4,17H2,1-2H3,(H2,16,20 azirino[2',3':3,4]pyrrolo[1,2-a]indole-8-acetamide, 6-amino-1,1a,2,4,7,8,8a,8b-octahydro-8a-methoxy-5-methyl-4,7-dioxo-