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