Methyl 4-cyano-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 4-cyano-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate
2-Fluoro-6-hydroxy-4-methyl-3-(trifluoromethoxy)pyridine
Methyl 3-cyano-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate