3-(Chloromethyl)-5-(difluoromethyl)-4-(trifluoromethyl)pyridine-2-sulfonyl chloride
Ethyl 6-(difluoromethyl)-3-fluoro-2-methoxypyridine-4-acetate
3-(Difluoromethyl)-2-iodopyridine-4-sulfonyl chloride
3-(Difluoromethyl)-6-hydroxy-2-iodopyridine-4-sulfonamide