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