Methyl 2-fluoro-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-5-acetate
Methyl 4-cyano-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 2-cyano-5-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-3-acetate
Methyl 4-cyano-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylate