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