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.

Date of Patent:
Jul. 31, 2012

Filed:

Sep. 29, 2009
Applicants:

Brenda E. Allen, Fieldon, IL (US);

Esa T. Jarvi, Ballwin, MO (US);

Dennis J. Kalota, Fenton, MO (US);

James R. Meyer, St. Louis, MO (US);

Keith G. Tomazi, Florissant, MO (US);

Anthony Mannino, Maryland Heights, MO (US);

Brian Orr, O'fallon, MO (US);

Inventors:

Brenda E. Allen, Fieldon, IL (US);

Esa T. Jarvi, Ballwin, MO (US);

Dennis J. Kalota, Fenton, MO (US);

James R. Meyer, St. Louis, MO (US);

Keith G. Tomazi, Florissant, MO (US);

Anthony Mannino, Maryland Heights, MO (US);

Brian Orr, O'fallon, MO (US);

Assignee:

Mallinckrodt LLC, Hazelwood, MO (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 489/12 (2006.01); C07D 489/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides process for the production of opiate alkaloids. In particular, the present invention provides processes for the production of buprenorphine or a derivative of buprenorphine that minimizes the formation of impurities.


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