Ethyl 5-cyano-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-acetate
Ethyl 3-cyano-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-acetate
Ethyl 6-cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetate
4-Fluoro-3-hydroxy-2-methoxy-5-(trifluoromethoxy)pyridine