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:
Nov. 07, 1989
Filed:
Apr. 27, 1988
Applicant:
Inventors:
Yen-rong Chen, Beijing, CN;
Ming-he Yang, Beijing, CN;
Liang Huang, Beijing, CN;
Geng-tao Liu, Beijing, CN;
Ulrich Benz, Duesseldorf, DE;
Assignees:
Chinese Academy of Medical Sciences, Beijing, CN;
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
548453 ; 548544 ;
Abstract
Purified Clausenamide of the formula ##STR1## is obtained by extraction of leaves of Clausena lansium followed by purification, Reduction products, ethers, etc. can be produced. The compounds are effective in treating hypoxia and amnesia.