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