4-(Difluoromethyl)-6-fluoro-3-nitropyridine-2-sulfonamide
5-(Difluoromethyl)-3-fluoro-4-nitropyridine-2-sulfonamide
4-(Chloromethyl)-5-(difluoromethyl)-2-fluoropyridine-3-methanol
3-(Aminomethyl)-4-(difluoromethyl)-5-fluoro-2-(trifluoromethyl)pyridine