3(S)-amino-2-hydroxyhexanoic acid cyclopropylamide 、
3-(pyridin-3-ylmethanesulfonyl)-2-(R)[2,2,2-trifluoro-1(S)-(4-fluorophenyl)ethylamino] propionic acid 在
N-甲基吗啉 、 O-benzotriazol-1-yl-N,N,N'N'-tetramethyl-uronium hexafluorophosphate 作用下,
以
乙腈 为溶剂,
生成 2-hydroxy-3(S)-{3-(pyridin-3-ylmethanesulfonyl)-2(R)-[2,2,2-trifluoro-1(S)-(4-fluorophenyl)-ethylamino]propionylamino}-hexanoic acid cyclopropylamide