3-Cyano-2-fluoro-4-(trifluoromethoxy)pyridine-6-carboxylic acid
6-Cyano-3-fluoro-2-(trifluoromethoxy)pyridine-4-acetic acid
4-Chloro-3-methoxy-6-(trifluoromethoxy)pyridine-2-acetonitrile
2-Cyano-4-fluoro-6-(trifluoromethoxy)pyridine-3-acetic acid
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