Process for preparing zolpidem hemitartrate and tartrate polymorphs

Details for Australian Patent Application No. 2006297475 (hide)

Owner Mallinckrodt Inc.

Inventors Cheng, Brian K.

Agent Phillips Ormonde Fitzpatrick

Pub. Number AU-A-2006297475

PCT Pub. Number WO2007/040995

Priority 60/723,076 03.10.05 US

Filing date 19 September 2006

Wipo publication date 12 April 2007

International Classifications

C07D 471/04 (2006.01) Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups

Event Publications

24 April 2008 PCT application entered the National Phase

  PCT publication WO2007/040995 Priority application(s): WO2007/040995

21 October 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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