Ethyl 2-bromo-5-(difluoromethyl)-6-nitropyridine-3-carboxylate
Ethyl 6-bromo-3-(difluoromethyl)-4-nitropyridine-2-carboxylate
6-(Aminomethyl)-3-bromo-2-(difluoromethyl)-4-(trifluoromethyl)pyridine
Ethyl 2-bromo-5-(difluoromethyl)-3-nitropyridine-6-carboxylate