Ethyl 5-(difluoromethyl)-3-fluoro-2-(trifluoromethyl)pyridine-4-carboxylate
5-(Bromomethyl)-4-(difluoromethyl)-2-fluoropyridine-3-carboxaldehyde
2-(Difluoromethyl)-3-fluoro-4-nitropyridine-6-carboxylic acid
2-(Bromomethyl)-6-(difluoromethyl)-4-fluoropyridine-3-carboxaldehyde