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