Methyl 3-cyano-6-methyl-4-(trifluoromethoxy)pyridine-2-acetate
3-Fluoro-5-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-2-carboxylic acid
Methyl 5-cyano-2-methyl-3-(trifluoromethoxy)pyridine-4-acetate
Methyl 2-cyano-5-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetate