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:
Jun. 10, 2008
Filed:
Dec. 16, 2003
Applicants:
Esa T. Jarvi, Ballwin, MO (US);
Douglas C. Miller, University City, MO (US);
Inventors:
Esa T. Jarvi, Ballwin, MO (US);
Douglas C. Miller, University City, MO (US);
Assignee:
Mallinckrodt Inc., Hazelwood, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 498/00 (2006.01); C07D 487/00 (2006.01); C07D 471/02 (2006.01); C07D 491/02 (2006.01); C07D 498/02 (2006.01); C07D 513/02 (2006.01); C07D 235/02 (2006.01); C07D 403/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An improved process for the preparation of a heteroaryl acetamide from a heteroaryl α-hydroxyacetamide is provied. The process comprises directly hydrogenating the heteroaryl α-hydroxyacetamide in the presence of a strong acid, a halide and a catalyst. In one embodiment, the heteroaryl acetamide is zolpidem and the heteroaryl α-hydroxyacetamide is α-hydroxyzolpidem.