3-Bromo-5-(difluoromethyl)-2-nitropyridine-6-carboxylic acid
3-Bromo-4-(difluoromethyl)-2-nitropyridine-6-carboxylic acid
3-Bromo-4-(difluoromethyl)-2-(trifluoromethyl)pyridine-6-carboxylic acid
5-Bromo-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-carboxaldehyde