Patents by Inventor Patrick Gros-Claude

Patrick Gros-Claude 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).

  • Crystalline forms of osanetant
    Patent number: 7041679
    Abstract: The invention relates to crystalline forms of (R)-(+)-N-[[3-[1-benzoyl-3-(3,4-dichlorophenyl)piperidin-3-yl]prop-1-yl]-4-phenylpiperidin-4-yl]-N-methylacetamide and to processes for preparing them.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: May 9, 2006
    Assignee: sanofi-aventis
    Inventors: Alain Alcade, Gilles Anne-Archard, Patrick Gros-Claude, Olivier Monnier, Jérome Roche
  • Method for preparing 4-methylamino-4-phenylpiperidine
    Patent number: 6916929
    Abstract: The invention relates to a process for preparing a 4-alkoxycarbonylamino-1-benzyl-4-phenylpiperidine of formula (I) via hydrolysis of 1-benzyl-4-cyano-4-phenylpiperidine (II) in acidic medium and treatment of the 1-benzyl-4-phenyl-4-piperidinecarboxamide (III) thus obtained with bromine in the presence of an alkali metal alkoxide. The invention also relates to a process for preparing 4-methylamino-4-phenylpiperidine from compound (II).
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: July 12, 2005
    Assignee: Sanofi-Synthelabo
    Inventors: Gilles Anne-Archard, Patrick Gros-Claude
  • Method for preparing 4-methylamino-4-phenylpiperidine
    Publication number: 20040181071
    Abstract: The invention relates to a process for preparing a 4-alkoxycarbonylamino-1-benzyl-4-phenylpiperidine of formula (I) 1
    Type: Application
    Filed: January 12, 2004
    Publication date: September 16, 2004
    Inventors: Gilles Anne-Archard, Patrick Gros-Claude
  • Crystalline forms of osanetant
    Publication number: 20040044215
    Abstract: The invention relates to crystalline forms of (R)-(+)-N-[[3-[1-benzoyl-3-(3,4-dichlorophenyl)piperidin-3-yl]prop-1-yl]-4-phenylpiperidin-4-yl]-N-methylacetamide and to processes for preparing them.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 4, 2004
    Inventors: Alain Alcade, Gilles Anne-Archard, Patrick Gros-Claude, Olivier Monnier, Jerome Roche