2-(2-{24-[(3-{[6-Amino-2-({2-[({24-[(2-{[2-({[(aminoacetyl)amino]acetyl}amino)-3-carboxypropanoyl]amino}-4-methylpentanoyl)amino]-6,9,12-triisobutyl-18-methyl-15,21-bis(methylene)-5,8,11,14,17,20,23-h eptaoxo-1-thia-4,7,10,13,16,19,22-heptaazacyclopentacosan-3-yl}carbonyl)amino]-3-carboxypropanoyl}amino)hexanoyl]amino}-2-oxo-4-phenylbutanoyl)amino]-18-benzyl-12-(1-hydroxyethyl)-6,9-diisobutyl-21-me thyl-15-methylene-8,11,14,17,20,23-hexaoxo-1-thia-4,7,10,13,16,19,22-heptaazacyclopentacosan-3-yl}-2-oxoethyl)-4-methylpentanoic acid (non-preferred name)