Showing structure for n-{3-[(6s,9s,12s,15s,18s,23as)-12,18-dibenzyl-6-[(2s)-butan-2-yl]-1,4,7,10,13,16-hexahydroxy-9-(hydroxymethyl)-19-oxo-3h,6h,9h,12h,15h,18h,21h,22h,23h,23ah-pyrrolo[1,2-a]1,4,7,10,13,16,19-heptaazacyclohenicosan-15-yl]propyl}guanidine