methyl 3-((1-(2-cyclohexylacetyl)pyrrolidin-2(S)-yl)methylthio)-2(S)-((tert-butoxy)carbonylamino)propionate 、 DMF, methyl 2(S)-amino-3-((1-(2-cyclohexylacetyl)pyrrolidin-2(S)-yl)methylthio)propionate 、
碳酸氢钠 生成
methyl 2(S)-amino-3-((1-(2-cyclohexylacetyl)pyrrolidin-2(S)-yl)methylthio)propionate