2-Chloro-4-hydroxy-5-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-(Bromomethyl)-3-cyano-6-iodo-5-(trifluoromethoxy)pyridine
2-Chloro-3-hydroxy-6-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-(Aminomethyl)-6-cyano-2-iodo-4-(trifluoromethoxy)pyridine