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