3-Bromo-5-(difluoromethyl)-2-methoxypyridine-4-sulfonamide
3-Bromo-4-(difluoromethyl)-6-methoxypyridine-2-sulfonamide
3-(Aminomethyl)-6-bromo-4-(difluoromethyl)pyridine-2-acetic acid
2-Bromo-5-(chloromethyl)-4-(difluoromethyl)-3-(trifluoromethyl)pyridine