申请人:Dr. Willmar Schwabe GmbH & Co.
公开号:US05428038A1
公开(公告)日:1995-06-27
Novel 2H-1-benzopyran-2-ones (coumarin derivatives) of the general formula (I) are provided: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, X and Y are defined as in the specification, and the addition compounds thereof with physiologically compatible acids, intermediates and methods for the preparation thereof. The coumarin compounds possess a neuroprotective and anti-allergic action.
提供一般式(I)的新型2H-1-苯并吡喃-2-酮(香豆素衍生物):##STR1## 其中R.sup.1、R.sup.2、R.sup.3、R.sup.4、X和Y的定义如规范中所述,并与生理兼容酸的加合物、中间体及其制备方法。香豆素化合物具有神经保护和抗过敏作用。