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:
Feb. 04, 2013
Filed:
Dec. 09, 2001
Yusuf Khwaja Hamied, Bombay, IN;
Rajendra Narayanrao Kankan, Mumbai, IN;
Dharmaraj Ramachandra Rao, Maharashtra, IN;
Yusuf Khwaja Hamied, Bombay, IN;
Rajendra Narayanrao Kankan, Mumbai, IN;
Dharmaraj Ramachandra Rao, Maharashtra, IN;
Cipla Limited, , IN;
Abstract
A process for making opticallyOpticallypure (R) and (S) salbutamolcomprises obtaining the (R) or (S) isomer of either salbutamol or a salbutamol precursor in substantially optically pure formis obtainedby resolving a racemic or optically impure mixture of enantiomers of salbutamol or ofsaida salbutamolprecursor with either (L) or (D) tartaric acid, and where necessary converting saidisomer of saidprecursor into either (R) or (S) salbutamol respectively; then optionally converting said optically pure (R) and/or (S) salbutamol into a pharmaceutically acceptable salt.