(2S,3R)-2-[(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-methyl-butyrylamino]-3-hydroxy-butyric acid benzyl ester

2-[(S)-1-({2-[(S)-1-({2-[(S)-1-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propyl]-5-methyl-oxazole-4-carbonyl}-amino)-2-methyl-propyl]-thiazole-4-carbonyl}-amino)-2-methyl-propyl]-thiazole-4-carboxylic acid allyl ester

2-[(S)-1-({2-[(S)-1-({2-[(S)-1-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propyl]-5-methyl-oxazole-4-carbonyl}-amino)-2-methyl-propyl]-oxazole-4-carbonyl}-amino)-2-methyl-propyl]-thiazole-4-carboxylic acid allyl ester