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