6-Fluoro-2-nitro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Fluoro-6-nitro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-(Aminomethyl)-6-hydroxy-5-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Fluoro-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetic acid