Production of 5-methyl-N-aryl-2-pyrrolidone and 5methyl-N-cycloalkyl-2-pyrrolidone by reductive amination of levulinic acid with aryl amines

Details for Australian Patent Application No. 2004224289 (hide)

Owner E.I. Dupont De Nemours and Company

Inventors Manzer, Leo Ernest

Agent Houlihan2

Pub. Number AU-A-2004224289

PCT Pub. Number WO2004/084887

Priority 10/396,212 24.03.03 US

Filing date 23 March 2004

Wipo publication date 7 October 2004

International Classifications

A61K 031/401 - Proline

C07D 207/04 Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom

Event Publications

25 August 2005 PCT application entered the National Phase

  PCT publication WO2004/084887 Priority application(s): WO2004/084887

3 April 2008 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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