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