(S)-N-((S)-1-((2-Amino-2-oxoethyl)amino)-4-methyl-1-oxopentan-2-yl)-1-((4R,7S,10S,14R,17S,20R)-20-amino-7-(2-amino-2-oxoethyl)-10-(3-amino-3-oxopropyl)-14-((S)-sec-butyl)-17-(4-hydroxybenzyl)-6,9,12,16,19-pentaoxo-1,2-dithia-5,8,11,13,15,18-hexaazacyclohenicosane-4-carbonyl)pyrrolidine-2-carboxamid
