Methyl 3-(chloromethyl)-4-fluoro-2-(trifluoromethoxy)pyridine-6-acetate
4-Cyano-2-nitro-3-(trifluoromethoxy)pyridine-5-carboxylic acid
5-Cyano-3-nitro-4-(trifluoromethoxy)pyridine-2-carboxylic acid
6-Cyano-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetic acid