6-(Difluoromethyl)-4-methyl-5-(1-methylethylthio)-2-(trifluoromethyl)-3-pyridinecarboxylic acid, ethyl ester 、
间氯过氧苯甲酸 、 、
3-氯苯甲酸 在
ether petroleum ether 作用下,
以afforded the product as a white solid (4.65 g)的产率得到6-(Difluoromethyl)-5-(2-propylsulfinyl)-4-methyl-2-(trifluoromethyl)-3-pyridinecarboxylic acid, ethyl ester