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