3-Chloro-2-methoxy-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-Cyano-2-(fluoromethyl)-5-methoxy-6-(trifluoromethoxy)pyridine
2-Chloro-4-(chloromethyl)-6-cyano-3-(trifluoromethoxy)pyridine
6-Chloro-3-cyano-2-methoxy-4-(trifluoromethoxy)pyridine