2-Hydroxy-4-nitro-5-(trifluoromethoxy)pyridine-3-acetonitrile
5-Fluoro-2-methyl-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-Hydroxy-3-nitro-6-(trifluoromethoxy)pyridine-5-acetonitrile
3-(Aminomethyl)-5-hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine