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Disubstituted xanthone carboxylic acid compounds
Compositions containing and methods employing, as the essential ingredient, novel disubstituted xanthone carboxylic acid compounds which are useful in the treatment of allergic conditions. Methods for preparing these compounds and compositions and intermediates therein are also disclosed. 5-Methylsulfinyl-7-isopropoxyxanthone-2-carboxylic acid and 5,7-di(methylsulfinyl)xanthone-2-carboxylic acid are illustrated as representative compounds.
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Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”