5-Amino-3-(chloromethyl)-2-(difluoromethyl)-4-iodopyridine
3-Hydroxy-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-Hydroxy-5-methoxy-3-(trifluoromethoxy)pyridine-4-carbonyl chloride
2-Chloro-4-(chloromethyl)-3-(difluoromethyl)pyridine-5-carboxaldehyde