Showing structure for 17,18-dichloro-3,13-diethyl-1,4,7,11-tetrahydroxy-6-(hydroxymethyl)-9-phenyl-3h,6h,9h,10h,13h,16h,17h,18h,18ah-pyrrolo[1,2-d]1,4,7,10,13-pentaazacyclohexadecan-14-one