DNA gyrase inhibitory activity of ellagic acid derivatives
作者:Michele A Weidner-Wells、Jason Altom、Jeffrey Fernandez、Stephanie A Fraga-Spano、Jamese Hilliard、Kwasi Ohemeng、John F Barrett
DOI:10.1016/s0960-894x(97)10197-4
日期:1998.1
Ellagic acid was found to inhibit E. coli DNA gyrase supercoiling with approximately the same potency as nalidixic acid. Tricyclic analogs of ellagic acid, which vary in the number and position of the hydroxy groups as well as their replacement with halogens, have been synthesized. The biological activity of these analogs is discussed.
Fluorenone derivatives, process for preparing the same and central or
申请人:Otsuka Pharmaceutical Co., Ltd.
公开号:US05942641A1
公开(公告)日:1999-08-24
The present invention provides a novel fluorenone derivatives represented by the formula: ##STR1## wherein R.sup.a -R.sup.g are defined in the specification, and a method for repairing and protecting central or peripheral nerve degeneration comprising use of a fluorenone derivative represented by the formula: ##STR2## wherein R.sup.1, R.sup.2 p and q are as defined in the specification as an active component.
Fluorenone derivatives, process for preparing the same and central or peripheral nerve degeneration repair and protective agent
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:EP0791570A1
公开(公告)日:1997-08-27
The present invention provides novel fluorenone derivatives represented by formula (A) (wherein Ra-Rg are defined in the specification), and a method for repairing and protecting central or peripheral nerve degeneration comprising use of a fluorenone derivative represented by formula (1) (wherein R1, R2, p and q are as defined in the specification) as an active component.