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:
Aug. 07, 2012
Filed:
Feb. 28, 2008
Rajendra Narayanrao Kankan, Maharashtra, IN;
Dharmaraj Ramachandra Rao, Maharashtra, IN;
Dilip Birari, Maharashtra, IN;
Ashwini Amol Sawant, Maharashtra, IN;
Rajendra Narayanrao Kankan, Maharashtra, IN;
Dharmaraj Ramachandra Rao, Maharashtra, IN;
Dilip Birari, Maharashtra, IN;
Ashwini Amol Sawant, Maharashtra, IN;
Cipla Limited, Mumbai, IN;
Abstract
A process for preparing a compound of formula (III) comprising condensing an oxiranyl compound of formula (I) with an amine of formula (II) or a salt thereof wherein: Ris a group selected from alkyl, aryl, allyl, alkoxy, cycloalkyl, heterocyclic, alkenyl, benzocycloalkyl, aralkyl, haloarylalkyl, heteroaralkyl, haloalkyl, alkoxyaralkyl, substituted silyl and benzyl; and Ris hydrogen, optionally substituted silyl or optionally substituted benzyl. There is also described a process for preparing (R,R)-carmoterol from compound (III).