Polymorphs of zaleplon and methods for the preparation thereof

Details for Australian Patent Application No. 2001283119 (hide)

Owner Wyeth

Inventors Cowans, Brett; Stahly, G. Patrick; Byrn, Stephen R; Aslam, Farhan

Agent Davies Collison Cave

Pub. Number AU-B-2001283119

PCT Pub. Number WO02/12244

Priority 60222785 03.08.00 US

Filing date 2 August 2001

Wipo publication date 18 February 2002

Acceptance publication date 15 November 2007

International Classifications

C07D 487/04 (2006.01) Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups

A61P 21/02 (2006.01) Drugs for disorders of the muscular or neuromuscular system

A61P 25/08 (2006.01) Drugs for disorders of the nervous system

A61P 25/20 (2006.01) Drugs for disorders of the nervous system

A61P 25/22 (2006.01) Drugs for disorders of the nervous system

Event Publications

15 November 2007 Application Accepted

  Published as AU-B-2001283119

13 March 2008 Standard Patent Sealed

25 February 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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