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:
Sep. 06, 2005
Filed:
Jul. 10, 2002
Applicants:
Ching-jer Chang, Lafayette, IN (US);
Xiao-jie Tong, Palisades Park, NJ (US);
Inventors:
Ching-jer Chang, Lafayette, IN (US);
Xiao-jie Tong, Palisades Park, NJ (US);
Assignee:
Purdue Research Foundation, West Lafayette, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D305/14 ;
U.S. Cl.
CPC ...
Abstract
A high yield, economical process for purifying taxanes from yew biomass is disclosed. The process does not require initial liquid:liquid portioning of the crude extract to separate highly polar substances. The organic solvent extract of the biomass is adsorbed onto and selectively desorbed from an adsorption resin to provide a taxane enriched eluate. Substantially pure individual taxanes may be further isolated from the eluate by hydrophobic-interaction chromatography.