2-(Difluoromethyl)-5-fluoro-3-iodopyridine-4-carboxaldehyde
3-(Difluoromethyl)-5-fluoro-2-methoxy-6-(trifluoromethoxy)pyridine
3-(Aminomethyl)-4-cyano-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Amino-5-(aminomethyl)-3-bromo-4-(difluoromethyl)pyridine