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