Methyl 5-(aminomethyl)-2-bromo-4-(difluoromethyl)pyridine-3-carboxylate
Methyl 5-(aminomethyl)-2-bromo-3-(difluoromethyl)pyridine-4-carboxylate
Methyl 4-(aminomethyl)-3-bromo-6-(difluoromethyl)pyridine-2-carboxylate
Methyl 4-(aminomethyl)-3-bromo-5-(difluoromethyl)pyridine-2-carboxylate