2-(Difluoromethyl)-5-fluoro-6-(trifluoromethoxy)pyridine-3-carboxylic acid
2-(Difluoromethyl)-4-fluoro-5-(trifluoromethoxy)pyridine-3-carboxylic acid
5-Hydroxy-3-nitro-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
2-(Aminomethyl)-4-hydroxy-6-nitro-3-(trifluoromethoxy)pyridine