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