(S)-2-Methanesulfonylamino-4-methylsulfanyl-butyric acid 在
sodium methylate 、 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
生成 (2S)-2-(methanesulfonamido)-N-[2-(3-methoxy-4-pent-2-ynoxyphenyl)ethyl]-4-methylsulfanylbutanamide