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:
Jul. 22, 2003
Filed:
Sep. 17, 2001
Applicant:
Inventors:
K. S. Keshava Murthy, Brantford, CA;
Bhaskar Reddy Guntoori, Brantford, CA;
Daqing Che, Brantford, CA;
Assignee:
Brantford Chemicals Inc., Brantford, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
A process for the preparation of Nefazodone hydrochloride comprising direct conversion of semicarbazide dihydrochloride 3 into Nefazodone hydrochloride which process involves a reaction of triethyl orthopropionate in the presence of trimethylsilylchloride and hydrochloric acid.