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:
Mar. 27, 2007
Filed:
Nov. 18, 2002
Jagdish Chand Saigal, Maharashtra, IN;
Rajender Pershad Gupta, Maharashtra, IN;
Rajesh Vinodrai Naik, Maharashtra, IN;
Araddy Rajshekhar, Karnataka, IN;
Rajesh Dilip Joshi, Maharashtra, IN;
Jagdish Chand Saigal, Maharashtra, IN;
Rajender Pershad Gupta, Maharashtra, IN;
Rajesh Vinodrai Naik, Maharashtra, IN;
Araddy Rajshekhar, Karnataka, IN;
Rajesh Dilip Joshi, Maharashtra, IN;
Nicholas Piramal India Limited, Maharashtra, unknown;
Abstract
A process for producing gabapentin, (1-(aminomethyl)-1-cyclohexaneacetic acid) from gabapentin hydrochloride salt. In the disclosed process, the gabapentin hydrochloride is converted to gabapentin using an inorganic base, such as barium hydroxide. Gabapentin hydrochloride is converted to gabapentin sulfate which in turn is converted to free base using barium hydroxide. The process is directed to improvement in the manufacture of gabapentin which would be industrially feasible and effective. Gabapentin obtained following the process of the invention is suitable as a drug especially in the treatment of cerebral diseases such as epilepsy.