4-(Chloromethyl)-3-hydroxy-2-nitro-5-(trifluoromethoxy)pyridine
4-Fluoro-3-methyl-5-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Hydroxy-4-iodo-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
4-(Chloromethyl)-6-hydroxy-3-nitro-2-(trifluoromethoxy)pyridine