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:
Apr. 30, 1991
Filed:
Feb. 27, 1989
Applicant:
Inventors:
Peter Buchs, Bioggio, CH;
Arnold Brossi, Bethesda, MD (US);
Assignee:
World Health Organization, Switzerland, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549348 ;
Abstract
A process for the epimerization of .alpha.- to .beta.-ethyletherartemisininelactol (arteether) or preparation of arteether, useful in the treatment of malaria, from artemisininelactol, comprises reacting starting material in a solvent including an acid catalyst, the reaction of artemisininelactol also including an etherifying ethyl moiety, and isolating the product.
Quick Actions:
Buchs, Peter. (1991). Synthesis of artemisininelactol derivatives (U.S. Patent No. 5011951). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5011951
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