Patents by Inventor Guy Duchene

Guy Duchene has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the preparation of 2-oxo-1-pyrrolidine derivatives
    Patent number: 8338621
    Abstract: The present invention relates to alternative processes for the preparation of 2-oxo-1-pyrrolidine derivatives of formula (I) Particularly, the present invention relates to alternative processes for the synthesis of levetiracetam, brivaracetam and seletracetam.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: December 25, 2012
    Assignee: UCB S.A.
    Inventors: John Surtees, Didier Bouvy, Antoine Thomas, Yves Combret, Michael Frank, Gunther Schmidt, Guy Duchene
  • PROCESS FOR THE PREPARATION OF 2-OXO-1-PYRROLIDINE DERIVATIVES
    Publication number: 20080009638
    Abstract: The present invention relates to alternative processes for the preparation of 2-oxo-1-pyrrolidine derivatives of formula (I) Particularly, the present invention relates to alternative processes for the synthesis of levetiracetam, brivaracetam and seletracetam.
    Type: Application
    Filed: December 19, 2006
    Publication date: January 10, 2008
    Applicant: UCB S.A.
    Inventors: John Surtees, Didier Bouvy, Antoine Thomas, Yves Combert, Michael Frank, Gunther Schmidt, Guy Duchene
  • Process of preparing [2-(1-piperazinyl)ethoxy]methyl compounds
    Patent number: 6255487
    Abstract: The present invention relates to novel substituted [2-(1-piperazinyl)-ethoxy]methyl compounds of formula in which R1 represents a —CONH2, —CN, —COOH, —COOM or —COOR3 group, M being an alkali metal and R3 being an alkyl radical having from 1 to 4 carbon atoms; and R2 represents a hydrogen atom or a group —COR4 or —R5, where R4 is chosen from the groups —OR6 l or —R7, in which R5 represents an alkyl or alkylaryl radical, R6 represents a linear or branched alkyl radical having from 1 to 4 carbon atoms, a haloalkyl, alkylaryl, alkylnitroaryl or alkylhaloaryl radical, and R7 represents a haloalkyl radical, to a process for the preparation of these compounds, and to their use for the preparation of compounds which are themselves valuable intermediates for the preparation of 2-[2-[4[(4-chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]-acetic acid or 2-[2-[4-[bix(4-fluorophenyl)methyl&rs
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: July 3, 2001
    Assignee: UCB, S.A.
    Inventors: Guy Duchene, Michel Deleers, Guy Bodson, Genevieve Motte, Francoise Lurquin
  • Substituted [2-(1-piperazinyl)ethoxy]methyl compounds
    Patent number: 6140501
    Abstract: Novel substituted [2-(1-piperazinyl)ethoxy]methyl compounds.The present invention related to novel substituted [2-(1-piperazinyl)-ethoxy]methyl compounds of formula ##STR1## in which R.sub.1 represents a --CONH.sub.2, --CN, --COOH, --COOM or --COOR.sub.3 group, M being an alkali metal and R.sub.3 being an alkyl radical having from 1 to 4 carbon atoms; andR.sub.2 represents a hydrogen atom or a group --COR.sub.4 or --R.sub.5, where R.sub.4 is chosen from the groups --OR.sub.6 or --R.sub.7, in whichR.sub.5 represents an allyl or alkylaryl radical,R.sub.6 represents a linear or branched alkyl radical having from 1 to 4 carbon atoms, a haloalkyl, alkylaryl, alkylnitroaryl or alkylhaloaryl radical, andR.sub.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: October 31, 2000
    Assignee: UCB, S.A.
    Inventors: Guy Duchene, Michel Deleers, Guy Bodson, Genevieve Motte, Francoise Lurquin