2,2'-(7-(4-((2-((((12S,32S,5R,13R,16S,19S,22S)-19-(3-amino-3-oxopropyl)-16-benzyl-13-carboxy-5-hexanamido-22-((R)-1-hydroxyethyl)-2,4,15,18,21,24-hexaoxo-7,11-dithia-14,17,20,23-tetraaza-1(1,2),3(2,1)-dipyrrolidina-9(1,3)-benzenacyclotetracosaphane-95-yl)