Ethyl 3-(bromomethyl)-4-(difluoromethyl)-5-iodopyridine-2-carboxylate
3-(Difluoromethyl)-2-methoxy-4-methylpyridine-5-sulfonyl chloride
6-(Difluoromethyl)-2-methoxy-4-methylpyridine-3-sulfonyl chloride
Methyl 3-(bromomethyl)-2-(difluoromethyl)-6-iodopyridine-5-acetate