5-chlorothiophene-2-carboxylic acid (2-hydroxy-1-methyl-1-{[3-methyl-4-(3-oxomorpholin-4-yl)phenylcarbamoyl]methyl}ethyl)amide 、
偶氮二甲酸二异丙酯 、
三苯基膦 在
silica gel 作用下,
以
四氢呋喃 为溶剂,
生成 5-chlorothiophene-2-carboxylic acid {3-methyl-1-[3-methyl-4-(3-oxomorpholin-4-yl)phenyl]-5-oxopyrrolidin-3-yl}amide