AN IMPROVED SYNTHESIS OF CEFTIOFUR INTERMEDIATE

Details for Australian Patent Application No. 2002367103 (hide)

Owner ORCHID CHEMICALS AND PHARMACEUTICALS LIMITED

Inventors DAS, Gautam, Kumar; DESHPANDE, Pramod, Narayan; KHADANGALE, Bhausaheb, Pandharinath; KUMAR, Surulichamy, Senthil

Pub. Number AU-A-2002367103

PCT Number PCT/IB02/03268

PCT Pub. Number WO2003/055893

Priority 10/035,178 04.01.02 US

Filing date 13 August 2002

Wipo publication date 15 July 2003

International Classifications

C07D 501/04 Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. cephalosporins

A61K 031/545 - Compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula , e.g. cephalosporins, cefaclor, cephalexine

Event Publications

4 September 2003 Application Open to Public Inspection

  Published as AU-A-2002367103

4 September 2003 Complete Application Filed

  Priority application(s): 10/035,178 04.01.02 US

23 September 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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