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:
Aug. 28, 2001
Filed:
Nov. 02, 1999
Applicant:
Inventors:
Daniel Gaudet, Chicoutimi, Québec, CA;
André Pichette, Chicoutimi, Québec, CA;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
A61K 3/578 ; A61K 3/119 ; A61K 3/156 ;
U.S. Cl.
CPC ...
A61K 3/578 ; A61K 3/119 ; A61K 3/156 ;
Abstract
A process is disclosed, for preparing a derivative of a targeted natural product from plants. The targeted natural product is extracted from the desired part of the plant and the targeted natural product is transformed into the desired derivative(s). Both the extraction and transformation are carried out in a single step consisting of macerating the desired part of the plant into a composition comprising an organic solvent and a reactive agent. This process is particularly useful for preparing derivatives of betulin or lupeol from bark of birch.