Ethyl 6-(chloromethyl)-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylate
4-(Chloromethyl)-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylic acid
4-(Chloromethyl)-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylic acid
4-(Chloromethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylic acid