4-Chloro-2-cyano-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
2-Chloro-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylic acid
2-Chloro-6-(chloromethyl)-5-iodo-3-(trifluoromethoxy)pyridine
5-Chloro-3-cyano-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride