Methyl 3-(bromomethyl)-2-(difluoromethyl)-6-iodopyridine-5-acetate
2-(Difluoromethyl)-3-methoxy-5-methylpyridine-6-sulfonyl chloride
3-(Chloromethyl)-4-(difluoromethyl)-2-iodo-6-(trifluoromethyl)pyridine
3-(Chloromethyl)-2-(difluoromethyl)-4-iodo-6-(trifluoromethyl)pyridine