4-(Aminomethyl)-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-sulfonamide
4-(Aminomethyl)-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-sulfonamide
Ethyl 4-(chloromethyl)-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetate
3-(Aminomethyl)-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-sulfonamide