(S)-2-{[2-((S)-1-tert-Butoxycarbonylamino-2-methyl-propyl)-oxazole-4-carbonyl]-amino}-3-(1H-indol-3-yl)-propionic acid methyl ester

2'-((S)-1-tert-Butoxycarbonylamino-2-methyl-propyl)-5-(1H-indol-3-yl)-[2,4']bioxazolyl-4-carboxylic acid

2-((S)-1-{[2-((S)-1-tert-Butoxycarbonylamino-2-methyl-propyl)-oxazole-4-carbonyl]-amino}-2-methyl-propyl)-thiazole-4-carboxylic acid allyl ester

2-((S)-1-(2-((S)-1-amino-2-methylpropyl)oxazole-4-carbonyl)pyrrolidin-2-yl)oxazole-4-carboxamide

2-((S)-1-amino-2-(4-hydroxyphenyl)ethyl)-N-((S)-1-(4-carbamoyloxazol-2-yl)-2-methylpropyl)oxazole-4-carboxamide