METHOD FOR PRODUCING LAMOTRIGINE FROM ALPHAOXO-2,3-DICHLOROPHENYL ACETAMIDINO-AMINOGUANIDINO HYDRAZONE BY RING CLOSURE REACTION

Details for Australian Patent Application No. 2002325297 (hide)

Owner HELM AG CF PHARMA GYOGYSZERGYARTO KFT.

Inventors GEGO, Csaba, Lehel; GARACZI, Sandor; NYERGES, Miklos; LUKACS, Ferenc; MATE, Attila, Gergely; ONDI, Levente; SCHNEIDER, Geza

Pub. Number AU-A-2002325297

PCT Number PCT/EP02/07433

PCT Pub. Number WO2003/008393

Priority 101 34 980.7 17.07.01 DE

Filing date 4 July 2002

Wipo publication date 3 March 2003

International Classifications

C07C 281/18 Derivatives of carbonic acid containing functional groups covered by groups in which at least one nitrogen atom of these functional groups is further bound to another nitrogen atom not being part of a nitro or nitroso group

C07C 255/61 Carboxylic acid nitriles

C07C 251/30 Compounds containing nitrogen atoms doubly- bound to a carbon skeleton

C07C 257/14 Compounds containing carboxyl groups, the doubly-bound oxygen atom of a carboxyl group being replaced by a doubly-bound nitrogen atom, this nitrogen atom not being further bound to an oxygen atom, e.g. imino-ethers, amidines

C07D 253/06 Heterocyclic compounds containing six-membered rings having three nitrogen atoms as the only ring hetero atoms, not provided for by group

Event Publications

16 January 2003 Complete Application Filed

  Priority application(s): 101 34 980.7 17.07.01 DE

22 May 2003 Application Open to Public Inspection

  Published as AU-A-2002325297

8 April 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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