2-Bromo-5-(difluoromethyl)-4-nitropyridine-3-carboxylic acid
3-Bromo-4-(difluoromethyl)-6-(trifluoromethyl)pyridine-2-carboxylic acid
2-Bromo-4-(difluoromethyl)-3-methylpyridine-6-carbonyl chloride
2-Bromo-3-(difluoromethyl)-6-methylpyridine-5-carbonyl chloride