5-Nitro-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-sulfonyl chloride
3-Nitro-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-sulfonyl chloride
3-(Aminomethyl)-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-methanol
2-(Aminomethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-methanol