Showing structure for (1s,2r,3ar)-9b-hydroxy-1-methoxy-n3a-[(4s)-1-methoxy-7-methyl-1,5-dioxooct-6-en-4-yl]-n2,3-dimethyl-4-oxo-1h,2h,5h-benzo[e]indole-2,3a-dicarboximidic acid