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