3-Cyano-4-methoxy-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
4-Chloro-3-methyl-6-(trifluoromethoxy)pyridine-2-carboxylic acid
6-Cyano-2-methoxy-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-Chloro-5-methyl-6-(trifluoromethoxy)pyridine-2-carboxylic acid