3-Hydroxy-6-nitro-4-(trifluoromethoxy)pyridine-2-acetic acid
4-Hydroxy-2-nitro-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
Methyl 4-(chloromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylate
4-Hydroxy-5-nitro-3-(trifluoromethoxy)pyridine-2-acetic acid