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