Ethyl 4-(aminomethyl)-2-bromo-5-(difluoromethyl)pyridine-3-acetate
Ethyl 4-(aminomethyl)-2-bromo-3-(difluoromethyl)pyridine-5-acetate
Ethyl 3-(aminomethyl)-5-bromo-6-(difluoromethyl)pyridine-2-acetate
3-Bromo-6-(difluoromethyl)-2-methoxy-4-methylpyridine