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