BENZOPYRANONE, VERFAHREN ZU IHRER HERSTELLUNG UND VERWENDUNG
申请人:Dr. Willmar Schwabe GmbH & Co.
公开号:EP0584091B1
公开(公告)日:1997-01-15
US5428038A
申请人:——
公开号:US5428038A
公开(公告)日:1995-06-27
Benzopyranones, a method for producing them and uses therefor
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.