1,8-二氮杂双环[5.4.0]十一碳-7-烯 、
3-(4-trifluoromethylpyridin-2-yl)-1,2,4-oxadiazol-5-one 、
1-吡咯烷羰酰氯 在
resultant solution 、
4-(1-pyrrolidinecarbonyl)-3-(4-trifluoromethylpyridin-2-yl)-1,2,4-oxadiazol-5-one 作用下,
以
吡啶 为溶剂,
反应 15.0h,
以to obtain 0.27 g of 4-(1-pyrrolidinecarbonyl)-3-(4-trifluoromethylpyridin-2-yl)-1,2,4-oxadiazol-5-one (present compound (15))的产率得到4-(1-pyrrolidinecarbonyl)-3-(4-trifluoromethylpyridin-2-yl)-1,2,4-oxadiazol-5-one