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:
Jun. 29, 2007
Applicants:
Robert James Carroll, St. Catharines, CA;
Hannes Leisch, St. Catharines, CA;
Tomas Hudlicky, St. Catharines, CA;
Inventors:
Robert James Carroll, St. Catharines, CA;
Hannes Leisch, St. Catharines, CA;
Tomas Hudlicky, St. Catharines, CA;
Assignee:
Brock University, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 489/02 (2006.01); C07D 489/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides methods for the conversion of thebaine to a morphine derivative, such as hydrocodone. Novel ketal intermediates of the conversion are provided. A one-pot procedure for the conversion comprises treating thebaine with an acid in the presence of a metal catalyst.