2-(Aminomethyl)-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-6-sulfonamide
3-Amino-5-(chloromethyl)-4-(difluoromethyl)pyridine
3-Amino-4-(chloromethyl)-5-(difluoromethyl)pyridine
5-(Bromomethyl)-3-(difluoromethyl)-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine