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