2-Hydroxy-3-methyl-6-(trifluoromethoxy)pyridine-5-sulfonamide
2-(Fluoromethyl)-6-hydroxy-3-nitro-5-(trifluoromethoxy)pyridine
4-Hydroxy-3-methyl-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-(Aminomethyl)-3-hydroxy-6-nitro-5-(trifluoromethoxy)pyridine