ethyl 2-((S)-1-((S)-6-(((benzyloxy)carbonyl)amino)-2-((S)-1-(2-(2-((S)-1-((tert-butoxycarbonyl)-D-phenylalanyl)pyrrolidin-2-yl)thiazol-4-yl)oxazole-4-carbonyl)pyrrolidine-2-carboxamido)hexanamido)ethyl)thiazole-4-carboxylate

2-((S)-1-((S)-6-(((benzyloxy)carbonyl)amino)-2-((S)-1-(2-(2-((S)-1-((tert-butoxycarbonyl)-D-phenylalanyl)pyrrolidin-2-yl)thiazol-4-yl)oxazole-4-carbonyl)pyrrolidine-2-carboxamido)hexanamido)ethyl)thiazole-4-carboxylic acid

2-((S)-1-((S)-2-((S)-1-(2-(2-((S)-1-(D-phenylalanyl)pyrrolidin-2-yl)thiazol-4-yl)oxazole-4-carbonyl)pyrrolidine-2-carboxamido)-6-(((benzyloxy)carbonyl)amino)hexanamido)ethyl)thiazole-4-carboxylic acid

benzyl (4-((12S,22Z,32Z,52S,122Z,8S,11S,15R)-15-benzyl-11-methyl-4,6,9,13,16-pentaoxo-7,10,14-triaza-3(2,4)-oxazola-2,12(2,4)-dithiazola-1(2,1),5(1,2)-dipyrrolidinacyclohexadecaphane-8-yl)butyl)carbamate

(12S,22Z,32Z,52S,122Z,8S,11S,15R)-8-(4-aminobutyl)-15-benzyl-11-methyl-7,10,14-triaza-3(2,4)-oxazola-2,12(2,4)-dithiazola-1(2,1),5(1,2)-dipyrrolidinacyclohexadecaphane-4,6,9,13,16-pentaone