benzyl 2-[[3-benzylsulfanyl-2-(phenylmethoxycarbonylamino)propanoyl]amino]acetate

benzyl 2-[2-(phenylmethoxycarbonylamino)propanoylamino]acetate

benzyl 2-isocyanatoacetate

2-[(2-amino-2-methylpropanoyl)amino]acetic acid

2-去(乙酰基硫代甲基)-2-亚甲基消旋卡多曲