3-Pyridinecarboxylic acid, 6-(difluoromethyl)-4-ethyl-5-isocyanato-2-(trifluoromethyl)-,ethyl ester 、
2-氯乙醇 以
氯仿 为溶剂,
以3.27 g (66%)的产率得到3-Pyridinecarboxylic acid, 5-{[(2-chloroethoxy)carbonyl]amino}-6-(difluoromethyl)-4-ethyl-2-(trifluoromethyl)-,ethyl ester