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:
Oct. 29, 2013
Filed:
Aug. 18, 2010
Mukund Keshav Gurjar, Pune, IN;
Narendra Kumar Tripathy, Pune, IN;
Kiran Avinash Bapat, Pune, IN;
Vemavarapu P. K. V. Rao, Pune, IN;
Satyajeet Binay Biswas, Pune, IN;
Samit Satish Mehta, Pune, IN;
Mukund Keshav Gurjar, Pune, IN;
Narendra Kumar Tripathy, Pune, IN;
Kiran Avinash Bapat, Pune, IN;
Vemavarapu P. K. V. Rao, Pune, IN;
Satyajeet Binay Biswas, Pune, IN;
Samit Satish Mehta, Pune, IN;
Emcure Pharmaceuticals Limited, Pune, IN;
Abstract
The present invention provides a simple method for preparation of benzphetamine and its acid addition salt comprising reaction of methamphetamine hydrochloride of formula (III) with benzyl chloride and treating the isolated benzphetamine of formula (II) with an acid dissolved in an organic solvent to provide benzphetamine acid addition salt, more specifically, benzphetamine hydrochloride of formula (I).