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. 19, 2011
Filed:
Aug. 02, 2007
Applicant:
Zhisong Cao, Friendswood, TX (US);
Inventor:
Zhisong Cao, Friendswood, TX (US);
Assignee:
The Christus Stehlin Foundation for Cancer Research, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 491/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods of preparing CPT-esters are described. The methods include using at least one acid in the esterification reactions or acylation reactions of camptothecins.