Methyl 3-bromo-5-(bromomethyl)-2-(difluoromethyl)pyridine-4-acetate
Methyl 3-bromo-4-(bromomethyl)-6-(difluoromethyl)pyridine-2-acetate
Methyl 3-bromo-4-(bromomethyl)-5-(difluoromethyl)pyridine-2-acetate
3-Bromo-6-(difluoromethyl)-4-methoxypyridine-2-methanol