Patents by Inventor Jean-Louis Delepine

Jean-Louis Delepine 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).

  • Method for preparing 5-amino-benzoyl-benzofuran derivatives
    Patent number: 9499507
    Abstract: The invention relates to a method for preparing 5-amino-benzoyl-benzofuran derivatives having the general formula in which R1 is hydrogen or an alkyl or aryl group and R2 is hydrogen, an alkyl, alkoxy or dialkylaminoalkoxy group. According to the invention, the compounds having formula I are prepared by hydrogenating a 5-nitro-benzofuran derivative having the general formula in which R1 and R2 have the same meaning as above in the presence of palladized charcoal as a catalyst and in an ether or a mixture of ether as a solvent, thus forming the desired compounds.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: November 22, 2016
    Assignee: SANOFI
    Inventors: Xavier Bon, Jean-Louis Delepine, Laure Jourdin, Denis Largeau, Philippe Vayron
  • METHOD FOR PREPARING 5-AMINO-BENZOFURAN DERIVATIVES
    Publication number: 20150031901
    Abstract: The invention relates to a method for preparing 5-amino-benzoyl-benzofuran derivatives having the general formula in which R1 is hydrogen or an alkyl or aryl group and R2 is hydrogen, an alkyl, alkoxy or dialkylaminoalkoxy group. According to the invention, the compounds having formula I are prepared by hydrogenating a 5-nitro-benzofuran derivative having the general formula in which R1 and R2 have the same meaning as above in the presence of palladised charcoal as a catalyst and in an ether or a mixture of ether as a solvent, thus forming the desired compounds.
    Type: Application
    Filed: November 28, 2012
    Publication date: January 29, 2015
    Applicant: SANOFI
    Inventors: Xavier Bon, Jean-Louis Delepine, Laure Jourdin, Denis Largeau, Philippe Vayron