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