Ethyl 4-cyano-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetate
Ethyl 4-cyano-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 2-cyano-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetate
4-Fluoro-2-(fluoromethyl)-3-methyl-6-(trifluoromethoxy)pyridine