3-(Fluoromethyl)-5-hydroxy-2-nitro-6-(trifluoromethoxy)pyridine
3-(Fluoromethyl)-4-hydroxy-6-nitro-2-(trifluoromethoxy)pyridine
5-(Aminomethyl)-2-(difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine
6-(Aminomethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxaldehyde