Methyl 4-cyano-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetate
Methyl 4-cyano-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetate
5-Cyano-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-methanol
3-Cyano-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-2-methanol