2-(Aminomethyl)-6-hydroxy-3-nitro-5-(trifluoromethoxy)pyridine
5-(Difluoromethyl)-3-hydroxy-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
6-(Aminomethyl)-3-hydroxy-2-nitro-4-(trifluoromethoxy)pyridine
2-(Chloromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-4-acetic acid