1-氨基乙基(甲基)次膦酸 、 (S)-2-((S)-4-Benzyloxycarbonyl-4-benzyloxycarbonylamino-butyrylamino)-3-methyl-butyric acid 在
(benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
生成 (S)-2-Benzyloxycarbonylamino-4-{(S)-1-[1-(hydroxy-methyl-phosphinoyl)-ethylcarbamoyl]-2-methyl-propylcarbamoyl}-butyric acid benzyl ester