Showing structure for (6s,9s,12s,15s,18r,23as)-6,9,18-tribenzyl-12-[(2s)-butan-2-yl]-4,10,13,16-tetrahydroxy-2,8-dimethyl-15-(2-methylpropyl)-3h,6h,9h,12h,15h,18h,21h,22h,23h,23ah-pyrrolo[1,2-a]1,4,7,10,13,16,19-heptaazacyclohenicosane-1,7,19-trione