Methyl 3-(chloromethyl)-4-(difluoromethyl)-2-methoxypyridine-5-acetate
Methyl 3-(chloromethyl)-2-(difluoromethyl)-6-methoxypyridine-4-acetate
Methyl 3-(chloromethyl)-2-(difluoromethyl)-5-methoxypyridine-4-acetate
2-(Difluoromethyl)-6-methyl-5-nitropyridine-3-sulfonyl chloride