Ethyl 6-(chloromethyl)-2-(difluoromethyl)-4-methylpyridine-3-acetate
Ethyl 2-(chloromethyl)-6-(difluoromethyl)-4-methylpyridine-3-acetate
Ethyl 2-(chloromethyl)-6-(difluoromethyl)-3-methylpyridine-5-acetate
Ethyl 2-(chloromethyl)-6-(difluoromethyl)-3-methylpyridine-4-acetate