Patents by Inventor Ousmane Diouf

Ousmane Diouf 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 preparing 2-oxo-1-pyrrolidine derivatives
    Patent number: 7629474
    Abstract: The present invention relates to a new process for preparing 2-oxo-I-pyrrolidine derivatives of general formula (I) wherein the substituents are as defined in the specification.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: December 8, 2009
    Assignee: UCB Pharma S.A.
    Inventors: John Surtees, Françoise Lurquin, Ousmane Diouf
  • Process for the preparation of 2- (2- (4- (bis (4-flourophenyl) methyl) -pipe razin-1-yl) ethoxy acetic acid derivatives or corresponding salt forms thereof and intermediates therefor
    Publication number: 20080177071
    Abstract: The present invention relates to a process for the manufacture of 2-{2-[4-(bis(4-fluorophenyl)methyl)-1-piperazinyl]ethoxy}acetic acids, amides or related derivatives, of the general formula (I) wherein: Y represents hydroxy or —NR1R2; R1 and R2 each independently represent hydrogen or C?1-4#191 alkyl; m is 1 or 2, and n is 1 or 2, as well as the non-toxic, pharmaceutically acceptable salts and mixtures thereof. The present invention concerns also a polymorphic form of efletirizine.
    Type: Application
    Filed: October 29, 2007
    Publication date: July 24, 2008
    Inventors: Ousmane Diouf, John Surtees
  • Process for preparing 2-oxo-1-pyrrolidine derivatives
    Publication number: 20070100150
    Abstract: The present invention relates to a new process for preparing 2-oxo-1-pyrrolidine derivatives of general formula (I) wherein the substituents are as defined in the specification.
    Type: Application
    Filed: September 13, 2004
    Publication date: May 3, 2007
    Applicant: UCB, S.A.
    Inventors: John Surtees, Francoise Lurquin, Ousmane Diouf
  • Process for the preparation of 2-(2-(4-(bis(4-fluorophenyl)methyl)-piperazin-1-yl)ethoxy)acetic acid derivatives or corresponding salt forms thereof and intermediates therefor
    Publication number: 20040254375
    Abstract: The present invention relates to a process for the manufacture of 2-{2-[4-(bis(4-fluorophenyl)methyl)-1-piperazinyl]ethoxy}acetic acids, amides or related derivatives, of the general formula (I) wherein: Y represents hydroxy or —NR1R2; R1 and R2 each independently represent hydrogen or C?1-4#191 alkyl; m is 1 or 2, and n is 1 or 2, as well as the non-toxic, pharmaceutically acceptable salts and mixtures thereof. The present invention concerns also a polymorphic form of efletirizine.
    Type: Application
    Filed: January 26, 2004
    Publication date: December 16, 2004
    Inventors: Ousmane Diouf, John Surtees
  • (Aryl(alkyl)carbonyl)-heterocyclic compounds and their use in the treatment of anxiety and depression
    Patent number: 5534517
    Abstract: The invention relates to a compound selected from those of formula (I): ##STR1## wherein Ar, n, B and A are as defined in the description, to their optical isomers, and to their addition salts there of with a pharmaceutically-acceptable acid or base. The compounds are useful for treating or preventing anxiety and depression.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: July 9, 1996
    Assignee: Adir Et Compagnie
    Inventors: Ousmane Diouf, Daniel Lesieur, Patrick Depreux, Beatrice Guardiola-Lemaitre, Daniel-Henri Caignard, Pierre Renard, Gerard Adam
  • (Aryl(alkyl)carbonyl)-heterocyclic compounds, compositions and use
    Patent number: 5387586
    Abstract: The invention relates to a compound selected from those of formula (I): ##STR1## wherein Ar, n, B and A are as defined in the description, to their optical isomers, and to their addition salts there of with a pharmaceutically-acceptable acid or base.Medicinal product which is useful for treating pain and treating or preventing pathologies which require psychotropic agents.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: February 7, 1995
    Assignee: Adir et Compagnie
    Inventors: Ousmane Diouf, Daniel Lesieur, Patrick Depreux, Beatrice Guardiola-Lemaitre, Daniel-Henri Caignard, Pierre Renard, Gerard Adam