Showing structure for (3S,6S,9S,12S,15S,18S)-15-((1H-indol-3-yl)methyl)-3,6,9,12-tetrabenzyl-18-isobutyl-1-oxa-4,7,10,13,16-pentaazacyclooctadecane-2,5,8,11,14,17-hexaone