The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 1990
Filed:
Apr. 05, 1989
Applicant:
Inventors:
Kaneyoshi Kato, Osaka, JP;
Norio Shimamoto, Hyogo, JP;
Assignee:
Takeda Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07F / ;
U.S. Cl.
CPC ...
514 82 ; 514 99 ; 514100 ; 540-5 ; 546 23 ; 549220 ; 549222 ;
Abstract
The present invention relates to a compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, carboxylic acid acyl or carbamoyl which may be substituted; R is an aliphatic hydrocarbon group which may be substituted or alicylic hydrocarbon group which may be substituted, or a salt thereof. The compound of the present invention has the effects to prevent and improve dysfunctions caused by oxygen free radicals, and can be used as preventive and therapeutic drugs against dysfunctions in the circulatory system.