Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1979-08-09
1981-06-16
Lee, Mary C.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546155, 546156, 424258, C07D21556, C07D49104
Patent
active
042739306
ABSTRACT:
Disclosed are compounds which are 4-hydroxy-2-quinolinone-3-carboxylic acid esters, e.g., 1-methyl-4-hydroxy-2-quinolinone-3-carboxylic acid ethyl ester, useful as anti-allergic agents and intermediates for 1-alkyl-4-alkoxy-quinolin-2(1H)-ones, and prepared by reacting an isatoic anhydride with an alkali metal salt of a malonic ester.
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Lee Mary C.
Sandoz Inc.
Sharkin Gerald D.
Vila Richard E.
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