2-(1-(2-(tert-butoxycarbonyl(2-(tert-butoxycarbonylamino)ethyl)amino)ethyl)-3,5-dimethyl-1H-pyrazol-4-yl)acetic acid 、 alkaline earth salt of/the/ methylsulfuric acid 在
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
二氯甲烷 为溶剂,
以100%的产率得到2,3,5,6-tetrafluorophenyl-2-(1-(2-(tert-butoxycarbonyl-(2-(tert-butoxycarbonyl-amino)ethyl)amino)ethyl)-3,5-dimethyl-1H-pyrazol-4-yl)acetate