Process for the preparation of entecavir and novel intermediates thereof via carbon-silicon oxidation

Details for Australian Patent Application No. 2005251377 (hide)

Owner Bristol-Myers Squibb Company

Inventors Hartung, Kerry B.; Singh, Ambarish K.; Prasad, Siva J.; Reiff, Emily A.; Qian, Xinhua; Vemishetti, Purushotham; Dhokte, Ulhas P.; Mountford, Pia; Pendri, Yadagiri R.; Sailes, Helen; Zhou, Maotang X.

Agent Phillips Ormonde Fitzpatrick

Pub. Number AU-A-2005251377

PCT Pub. Number WO2005/118585

Priority 11/143,268 02.06.05 US; 60/576,899 04.06.04 US

Filing date 3 June 2005

Wipo publication date 15 December 2005

International Classifications

C07C 41/16 (2006.01) Preparation of ethers

C07C 41/26 (2006.01) Preparation of ethers

C07C 43/178 (2006.01) Ethers

C07C 43/215 (2006.01) Ethers

C07C 43/23 (2006.01) Ethers

C07D 473/10 (2006.01) Heterocyclic compounds containing purine ring systems

C07D 473/18 (2006.01) Heterocyclic compounds containing purine ring systems

C07F 7/04 (2006.01) Compounds containing elements of the 4th Group of the Periodic System

C07F 7/08 (2006.01) Compounds containing elements of the 4th Group of the Periodic System

C07F 7/18 (2006.01) Compounds containing elements of the 4th Group of the Periodic System

Event Publications

4 January 2007 PCT application entered the National Phase

  PCT publication WO2005/118585 Priority application(s): WO2005/118585

24 May 2012 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(e). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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