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