5-Amino-4-(difluoromethyl)-2-iodopyridine-3-sulfonamide
3-Amino-2-(aminomethyl)-4-(difluoromethyl)-6-(trifluoromethyl)pyridine
3-Amino-4-(difluoromethyl)-5-iodopyridine-2-sulfonamide
2-Amino-6-(aminomethyl)-5-(difluoromethyl)-3-(trifluoromethyl)pyridine