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