DL-氨基丙醇

2-[[(2S)-4-methyl-2-[[(2S)-1-[2-(phenylmethoxycarbonylamino)acetyl]pyrrolidine-2-carbonyl]amino]pentanoyl]amino]acetic acid

N-phenylcarbamoyl-glycyl=>glycyl=>glycine

leucyl=]glycyl=]leucine

leucyl=>glycyl=>glycyl=>glycyl=>glycyl=>glycyl=>glycyl=>glycyl=>glycyl=>glycine