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