Methyl 6-(aminomethyl)-2-bromo-4-(difluoromethyl)pyridine-3-acetate
Methyl 2-(aminomethyl)-6-bromo-3-(difluoromethyl)pyridine-5-acetate
5-Bromo-2-(difluoromethyl)-3-methoxypyridine-4-sulfonamide
4-Bromo-3-(difluoromethyl)-6-methoxypyridine-2-sulfonamide