Ethyl 2-cyano-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-acetate
Methyl 5-cyano-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetate
2-(Difluoromethyl)-4-fluoro-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
5-Cyano-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetic acid