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:
Nov. 20, 2012
Filed:
Sep. 07, 2010
Applicants:
Hang Sun, Chesterfield, MO (US);
John E. Johnson, Jr., Maryville, IL (US);
Ricky L. Fenton, Maryville, IL (US);
Sarah M. Dorn, Arnold, MO (US);
Inventors:
Hang Sun, Chesterfield, MO (US);
John E. Johnson, Jr., Maryville, IL (US);
Ricky L. Fenton, Maryville, IL (US);
Sarah M. Dorn, Arnold, MO (US);
Assignee:
Mallinckrodt LLC, Hazelwood, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 489/08 (2006.01); C07D 489/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides processes for the preparation of 10-keto and/or 10-hydroxy morphinans. In particular, the invention provides to processes for preparing a 10-keto morphinan by chromium-catalyzed benzylic oxidation of a morphinan with a periodic acid.