Showing structure for n-[10-benzyl-1,8,11-trihydroxy-3-(1h-indol-3-ylmethyl)-6,13-dimethyl-4,14-dioxo-3h,6h,7h,10h,13h,16h,17h,18h,18ah-pyrrolo[2,1-f]1-oxa-4,7,10,13-tetraazacyclohexadecan-7-yl]butanimidic acid