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