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