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