Production of quinic acid derivatives
    95.
    发明授权
    Production of quinic acid derivatives 失效
    生成奎尼酸衍生物

    公开(公告)号:US5395950A

    公开(公告)日:1995-03-07

    申请号:US95757

    申请日:1993-07-21

    申请人: Huynh-Ba Tuong

    发明人: Huynh-Ba Tuong

    摘要: 1-, 5-O-mono- and 3,4-0-bis-substituted derivatives of quinic acid are prepared by reacting a derivative of a hydroxycinnamic acid of which the hydroxyl group(s) is/are protected with a quinic acid derivative to form an ester and the protective groups are then cleaved under controlled conditions of acidity and temperature. These conditions provide for regiospecificity of the esterification and enable any degradation of isomerization to be avoided. The process gives new quinides in high yields.

    摘要翻译: 奎宁酸的1-,5-O-单和3,4-二取代的衍生物是通过使羟基被保护的羟基肉桂酸的衍生物与奎尼酸衍生物 形成酯,然后在控制的酸度和温度条件下将保护基切割。 这些条件提供酯化的区域特异性,并且能够避免异构化的任何降解。 该方法产生高产量的新醌。