Processes for producing pyrazoloacridone derivative and intermediate therefor

Details for Australian Patent Application No. 2004232605 (hide)

Owner Kyowa Hakko Kogyo Co., Ltd.

Inventors Kinugawa, Masahiko; Tsubakihara, Nobuaki; Kato, Nobuyuki; Katsuhira, Takeshi

Agent Spruson & Ferguson

Pub. Number AU-A-2004232605

PCT Pub. Number WO2004/094423

Priority 2003-119943 24.04.03 JP

Filing date 23 April 2004

Wipo publication date 4 November 2004

International Classifications

C07D 471/06 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

C07D 231/56 Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings

Event Publications

27 October 2005 PCT application entered the National Phase

  PCT publication WO2004/094423 Priority application(s): WO2004/094423

24 April 2008 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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