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