(S)-2-(2-Amino-3-hydroxy-3-phenyl-propionylamino)-4-methyl-pentanoic acid methyl ester 、
2-{2-[(S)-2-Benzyloxycarbonylamino-3-(4-benzyloxy-phenyl)-propionylamino]-acetylamino}-acetimidic acid ethyl ester; hydrochloride 以
甲醇 为溶剂,
生成 methyl (2S)-4-methyl-2-[[(4S,5R)-5-phenyl-2-[[[2-[[(2S)-2-(phenylmethoxycarbonylamino)-3-(4-phenylmethoxyphenyl)propanoyl]amino]acetyl]amino]methyl]-4,5-dihydro-1,3-oxazole-4-carbonyl]amino]pentanoate 、 (S)-2-{[(4R,5S)-2-({2-[(S)-2-Benzyloxycarbonylamino-3-(4-benzyloxy-phenyl)-propionylamino]-acetylamino}-methyl)-5-phenyl-4,5-dihydro-oxazole-4-carbonyl]-amino}-4-methyl-pentanoic acid methyl ester