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