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