5-(Chloromethyl)-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-carboxylic acid
3-(Chloromethyl)-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-carboxylic acid
2-Cyano-4-(difluoromethyl)pyridine
3-(Chloromethyl)-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-6-carboxylic acid