Methyl 2-(bromomethyl)-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetate
Methyl 4-(chloromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine-6-carboxylate
5-Amino-3-(difluoromethyl)-2-nitropyridine-4-carboxaldehyde
5-Cyano-4-fluoronicotinoyl chloride