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. 18, 2006
Filed:
Nov. 22, 2002
Applicants:
Jayachandra Suresh Babu, Haryana, IN;
Purna Chandra Ray, Delhi, IN;
Yatendra Kumar, Haryana, IN;
Chandra Has Khanduri, Haryana, IN;
Inventors:
Jayachandra Suresh Babu, Haryana, IN;
Purna Chandra Ray, Delhi, IN;
Yatendra Kumar, Haryana, IN;
Chandra Has Khanduri, Haryana, IN;
Assignee:
Ranbaxy Laboratories Limited, Haryana, IN (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D 473/18 (2006.01); C07B 63/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to an industrial useful process for the synthesis of antiviral compound, ganciclovir which comprises dissolving a mixture containing N-7 and N-9 isomers of structural formulae, II and III, respectively:in a solvent or a mixture of solvents; separating the N-7 and N-9 isomers; and hydrolizing the N-9 isomer to obtain ganciclovir.