3-(Difluoromethyl)-5-methoxy-6-nitropyridine-2-sulfonamide
4-Amino-5-(bromomethyl)-3-fluoro-2-(trifluoromethoxy)pyridine
3-Bromo-4-(chloromethyl)-5-(difluoromethyl)-2-iodopyridine
Ethyl 2-(aminomethyl)-3-cyano-4-(difluoromethyl)pyridine-6-carboxylate