Ethyl 4-bromo-2-(bromomethyl)-6-(difluoromethyl)pyridine-3-acetate
4-Bromo-2-(difluoromethyl)-3-methoxypyridine-6-carboxylic acid
Ethyl 4-bromo-2-(bromomethyl)-3-(difluoromethyl)pyridine-5-acetate
5-Bromo-3-(difluoromethyl)-2-methoxypyridine-4-carboxylic acid