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:
Jan. 24, 2012
Filed:
Jul. 18, 2008
Applicants:
Martin Eipert, Strengelbach, CH;
Erik Heinz Lauterbach, Suhr, CH;
Sabrina Heller, Oftringen, CH;
Thomas Dinkel, Stengelbach, CH;
Stephanie Hake, Rothrist, CH;
Inventors:
Martin Eipert, Strengelbach, CH;
Erik Heinz Lauterbach, Suhr, CH;
Sabrina Heller, Oftringen, CH;
Thomas Dinkel, Stengelbach, CH;
Stephanie Hake, Rothrist, CH;
Assignee:
Siegfried Ltd., Zofingen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 489/02 (2006.01); C07D 489/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for the preparation of quaternary N-alkyl morphin or morphinan alkaloid derivatives. This is achieved by using a nucleophilic nitrogen, phosphor or sulfur containing base in the reaction mixture.