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