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