(4S)-(-)-异丙基-5,5-二苯基-2-恶唑烷酮

methyl 2-[[3-benzylsulfanyl-2-(phenylmethoxycarbonylamino)propanoyl]amino]-3-methylbutanoate

methyl (2S)-3-methyl-2-[(2,2,2-trifluoroacetyl)amino]butanoate

N-(N-((苄氧基)羰基)-L-亮氨酰)-L-缬氨酸

tert-butyl N-[(2S)-3-methyl-1-oxobutan-2-yl]carbamate