Ethyl 5-bromo-3-(bromomethyl)-4-(difluoromethyl)pyridine-2-acetate
Ethyl 3-bromo-5-(bromomethyl)-2-(difluoromethyl)pyridine-6-acetate
2-Bromo-3-(difluoromethyl)-5-methylpyridine-4-sulfonamide
Ethyl 5-bromo-4-(bromomethyl)-2-(difluoromethyl)pyridine-3-acetate