Patents by Inventor Youssef El Ahmad

Youssef El Ahmad 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).

  • Publication number: 20090170833
    Abstract: The present invention relates to the novel derivatives of formula (I) in which A is, if it is present, a (C1-C6) alkyl, a (C3-C6) alkenyl, a (C3-C6) alkynyl, a (C3-C7) cycloalkyl or a (C5-C7) cycloalkenyl, R1 is an NR6R7, (C4-C7) azacycloalkyl, (C5-C7) azacycloalkenyl, (C5-C9) azabicycloalkyl or (C5-C9) azabicycloalkenyl group; A-R1 is such that the nitrogen of R1 and the nitrogen in the 1-position of the pyrazole are necessarily separated by at least two carbon atoms, R3 is an H, halogen, OH, SH, NH2, ORc, SRc, SORa, SO2Ra, NHCHO, NRaRb, NHC(O)Ra, NHC(S)Ra or NHSO2Ra, R4 is an aryl or heteroaryl; and R5 is an H, halogen, CF3, CHF2, CH2F, linear or branched (C1-C6) alkyl or (C3-C7) cycloalkyl, to their racemates, enantiomers and diastereoisomers and to their mixtures, their tautomers and to their pharmaceutically acceptable salts.
    Type: Application
    Filed: February 27, 2009
    Publication date: July 2, 2009
    Applicant: Aventis Pharma S.A.
    Inventors: Arielle GENEVOIS-BORELLA, Jean-Luc MALLERON, Jean BOUQUEREL, Gilles DOERFLINGER, Andrees BOHME, Gaetan TOUYER, Jean-Francois SABUCO, Corrine TERRIER, Serge MIGNANI, Michel EVERS, Youssef EL-AHMAD
  • Publication number: 20090143420
    Abstract: The present invention is related to a compound of formula (I) wherein R1, R2, R3, R4 and X are as defined herein, or an acid-addition salt thereof, its preparation and therapeutic use in the treatment or prevention of diseases involving the Nurr-1 nuclear receptors, also known as NR4A2, NOT, TINUR, RNR-1 and HZF3.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 4, 2009
    Applicant: SANOFI-AVENTIS
    Inventors: Jean-Francois PEYRONEL, Youssef EL-AHMAD
  • Patent number: 7528147
    Abstract: Novel compounds of formula (I): or pharmaceutically acceptable salts thereof, wherein R, R1, R2, R3, R4, R5, and R6 have the meanings given in the description, pharmaceutical compositions comprising said compounds and use thereof as protein kinase inhibitors.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: May 5, 2009
    Assignee: Aventis Pharma S.A.
    Inventors: Sylvie Wentzler, Youssef El-Ahmad, Bruno Filoche-Rommé, Conception Nemecek, Corinne Venot, Augustin Hittinger
  • Patent number: 7524838
    Abstract: The present invention relates to the novel derivatives of formula (I) in which A is, if it is present, a (C1-C6) alkyl, a (C3-C6) alkenyl, a (C3-C6) alkynyl, a (C3-C7) cycloalkyl or a (C5-C7) cycloalkenyl, R1 is an NR6R7, (C4-C7) azacycloalkyl, (C5-C7) azacycloalkenyl, (C5-C9) azabicycloalkyl or (C5-C9) azabicycloalkenyl group; A-R1 is such that the nitrogen of R1 and the nitrogen in the 1-position of the pyrazole are necessarily separated by at least two carbon atoms, R3 is an H, halogen, OH, SH, NH2, ORc, SRc, SORa, SO2Ra, NHCHO, NRaRb, NHC(O)Ra, NHC(S)Ra or NHSO2Ra, R4 is an aryl or heteroaryl; and R5 is an H, halogen, CF3, CHF2, CH2F, linear or branched (C1-C6) alkyl or (C3-C7) cycloalkyl, to their racemates, enantiomers and diastereoisomers and to their mixtures, their tautomers and to their pharmaceutically acceptable salts.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: April 28, 2009
    Assignee: Aventis Pharma S.A.
    Inventors: Arielle Genevois-Borella, Jean-Luc Malleron, Jean Bouquerel, Gilles Doerflinger, Andrees Bohme, Gaetan Touyer, Jean-Francois Sabuco, Corrine Terrier, Serge Mignani, Michel Evers, Youssef El-Ahmad
  • Publication number: 20090082379
    Abstract: Compounds of formula (I): wherein Ra, Rb, R, X1 and X2 are as defined in the disclosure, pharmaceutical compositions comprising said compounds, processes for making and methods of using the same are provided.
    Type: Application
    Filed: July 15, 2008
    Publication date: March 26, 2009
    Applicant: AVENTIS PHARMA S.A.
    Inventors: Frank HALLEY, Youssef El-Ahmad, Victor Certal, Corinne Venot, Anne Dagallier, Hartmut Strobel, Kurt Ritter, Sven Ruf
  • Publication number: 20090082329
    Abstract: The disclosure relates to compounds of formula (I): wherein Ra, Rb, R, and n are as defined in the disclosure, to pharmaceutical compositions comprising said compounds, and to processes for making and methods of using the same.
    Type: Application
    Filed: July 15, 2008
    Publication date: March 26, 2009
    Applicant: AVENTIS PHARMA S.A.
    Inventors: Frank HALLEY, Youssef EL-AHMAD, Victor CERTAL, Corinne VENOT, Anne DAGALLIER, Hartmut STROBEL, Kurt RITTER, Sven RUF
  • Patent number: 7396934
    Abstract: The invention relates to a novel preparation of 3-fluoroquinolines of formula (I) in which R1, R2, R3 and R4 represent: a) a fluorine; b) an alkyl optionally substituted with one to three fluorines, with OR5 in which R5 is an alkyl, a hydrogen or a hydroxyl-protecting group, or with NR?R? in which R? and R? represent an alkyl, a hydrogen or an amino-protecting group; c) OR6 in which R6 represents a hydrogen, a phenol-protecting group or an alkyl, optionally substituted with a fluorine, with OR5 or with NR?R? as defined above; d) NR?1R?1 in which R?1 and R?1 have the values of R? et R? or represent an alkyl substituted with a fluorine, with OR5 or NR?R? as defined above; e) CO2Ra, in which Ra represents hydrogen, alkyl or a carboxyl-protecting group, and also novel intermediate compounds. The quinolines of formula (I) are intermediates useful in the preparation of compounds having antibacterial activity, described in particular in applications WO 02/40474 or WO 02/72572.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: July 8, 2008
    Inventors: Youssef El-Ahmad, Jean-Pierre Leconte, Joël Malpart, Serge Mignani, Stéphane Mutti, Michel Tabart
  • Publication number: 20080108654
    Abstract: The disclosure relates to a cyclic urea compound of formula I: as defined herein, to the process for its preparation, pharmaceutical composition comprising it and its pharmaceutical use as an inhibitor on a protein kinase. Thus, the compound of formula I is useful for preventing or treating a physiological disorder capable of being modulated by inhibiting the activity of a protein kinase, such as a solid tumor.
    Type: Application
    Filed: January 10, 2008
    Publication date: May 8, 2008
    Applicant: AVENTIS PHARMA S.A.
    Inventors: Marcel PATEK, Anil NAIR, Augustin HITTINGER, Conception NEMECEK, Daniel BOND, Greg HARLOW, Herve BOUCHARD, Jacques MAUGER, Jean-Luc MALLERON, Mark PALERMO, Fahad AL-OBEIDI, Thomas FAITG, Hartmut STROBEL, Sven RUF, Kurt RITTER, Youssef EL-AHMAD, Dominique LESUISSE
  • Patent number: 7354933
    Abstract: The present invention relates to a cyclic urea compound of formula I: as defined herein. The invention is also directed to the process for its preparation, pharmaceutical composition comprising it and its pharmaceutical use, as an inhibitor on a protein kinase. Thus, it is useful for preventing or treating a physiological disorder capable of being modulated by inhibiting the activity of a protein kinase, such as a solid tumor.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: April 8, 2008
    Assignee: Aventis Pharma SA
    Inventors: Marcel Patek, Anil Nair, Augustin Hittinger, Conception Nemecek, Daniel Bond, Greg Harlow, Herve Bouchard, Jacques Mauger, Jean-Luc Malleron, Mark Palermo, Fahad Al-Obeidi, Thomas Faitg, Hartmut Strobel, Sven Ruf, Kurt Ritter, Youssef El-Ahmad, Dominique Lesuisse, Didier Bénard
  • Publication number: 20080045542
    Abstract: The disclosure concerns substituted imidazoles and pyrroles, compositions containing the same, the preparation thereof, and the use thereof as medicaments, particularly as anti-cancer agents.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 21, 2008
    Applicant: AVENTIS PHARMA S.A.
    Inventors: Baptiste RONAN, Frank HALLEY, Catherine SOUAILLE, Fabrice VIVIANI, Youssef EL-AHMAD, Eric BACQUE, Michel TABART
  • Publication number: 20080045561
    Abstract: Disclosed are compounds of formula (I): wherein R1, R2, R3, R4, and R5 have the meanings given in the description, and to salts thereof, pharmaceutical compositions comprising said compounds and the use thereof as protein kinase inhibitors.
    Type: Application
    Filed: March 28, 2007
    Publication date: February 21, 2008
    Applicant: AVENTIS PHARMA S.A.
    Inventors: Conception NEMECEK, William METZ, Sylvie WENTZLER, Dominique LESUISSE, Youssef EL-AHMAD
  • Publication number: 20080021029
    Abstract: The disclosure relates to the novel compounds of formula (I): wherein R1, R2, R2?, R3, R3?, p, A, B, Y, Y1, and Y2 have the meanings given in the description, and to salts thereof, pharmaceutical compositions comprising said compounds and use thereof as protein kinase inhibitors.
    Type: Application
    Filed: January 26, 2007
    Publication date: January 24, 2008
    Applicant: Aventis Pharma S.A.
    Inventors: Hartmut Strobel, Sven Ruf, Dominique Lesuisse, Conception Nemecek, Youssef El-Ahmad, Jacques Mauger, Stefan Guessregen, Kurt Ritter, Jean-Luc Malleron
  • Publication number: 20080004300
    Abstract: The invention relates to compounds of formula (I): in which R1, R2, L1, X, R3, A, R4, R4?, R4?, R4??, R5, Y and L2 are as herein defined, salts and prodrugs thereof, to their use as protein kinase inhibitors, and to methods of treating diseases comprising adminstration thereof.
    Type: Application
    Filed: January 26, 2007
    Publication date: January 3, 2008
    Applicant: Aventis Pharma S.A.
    Inventors: Hartmut Strobel, Sven Ruf, Dominique Lesuisse, Conception Nemecek, Youssef El-Ahmad, Stefan Guessregen, Anne Lebrun, Kurt Ritter, Didier Benard, Augustin Hittinger, Herve Bouchard
  • Patent number: 7232834
    Abstract: Quinolylpropylpiperidine derivatives of general formula (I) in which R1 is hydrogen or fluorine, R2 is carboxyl, carboxymethyl or hydroxymethyl, R3 is alkyl substituted either with phenylthio optionally substituted with halogen, hydroxyl, alkyl, alkyloxy, trifluoromethyl, trifluoromethoxy, carboxyl, alkyloxycarbonyl, cyano or amino, or with cycloalkylthio (3 to 7 members) optionally substituted with halogen or trifluoromethyl, or with heteroarylthio (5 to 6 members and 1 to 4 heteroatoms chosen from N, O and S), optionally substituted with halogen, hydroxyl, alkyl, alkyloxy, trifluoromethyl, trifluoromethoxy, carboxyl, alkyloxycarbonyl, cyano or amino or R3 is propargyl substituted by phenyl or heteroaryl as defined above and R4 is alkyl, alkenyl-CH2— or alkynyl-CH2—, cycloalkyl or cycloalkylalkyl, in their various isomeric forms, separate or as mixtures, and also their salts, their preparation process and intermediates and the compositions containing them.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: June 19, 2007
    Assignee: Novexel SA
    Inventors: Eric Bacque, Antony Bigot, Youssef El Ahmad, Jean-Luc Malleron, Serge Mignani, Baptiste Ronan, Michel Tabart, Fabrice Viviani
  • Patent number: 7232833
    Abstract: The invention relates to 4-substituted quinoline compounds of general formula: which are active as antimicrobials, in which: X1, X2, X3, X4 and X5 is C—R?1, to C—R?5 respectively, or alternatively at most one represents N, Y represents CHR, CO, CROH, CRNH2, CRF or CF2, R being a hydrogen or alkyl, m is 1, 2 or 3 and n is 0, 1 or 2, Z is CH2 or Z is O, S, SO, SO2 and, in this case, n is equal to 2, R2 is —CO2R, —CH2CO2R, —CH2—CH2CO2R, —CH2OH or —CH2—CH2OH, wherein R is as defined above, R3 represents phenyl, heteroaryl or alk-Ro3, where alk is alkyl and Ro3 represents various groups, where appropriate containing oxygen, sulfur or amine, in their enantiomeric or diastereoisomeric forms or their mixtures, and/or where appropriate in the syn or anti form or their mixtures, and their salts.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: June 19, 2007
    Assignee: Novexel
    Inventors: Antony Bigot, Youssef El-Ahmad, Jean-Luc Malleron, Jean-Paul Martin, Serge Mignani, Guy Pantel, Baptiste Ronan, Michel Tabart, Michel Cheve, Fabrice Viviani
  • Publication number: 20070093480
    Abstract: Novel compounds of formula (I): or pharmaceutically acceptable salts thereof, wherein R, R1, R2, R3, R4, R5, and R6 have the meanings given in the description, pharmaceutical compositions comprising said compounds and use thereof as protein kinase inhibitors.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 26, 2007
    Applicant: Aventis Pharma S.A.
    Inventors: Sylvie Wentzler, Youssef El-Ahmad, Bruno Filoche-Romme, Conception Nemecek, Corinne Venot, Augustin Hittinger
  • Publication number: 20050182259
    Abstract: The invention relates to a novel preparation of 3-fluoroquinolines of formula (I) in which R1, R2, R3 and R4 represent: a) a fluorine; b) an alkyl optionally substituted with one to three fluorines, with OR5 in which R5 is an alkyl, a hydrogen or a hydroxyl-protecting group, or with NR?R? in which R? and R? represent an alkyl, a hydrogen or an amino-protecting group; c) OR6 in which R6 represents a hydrogen, a phenol-protecting group or an alkyl, optionally substituted with a fluorine, with OR5 or with NR?R? as defined above; d) NR?1R?1 in which R?1 and R?1 have the values of R? et R? or represent an alkyl substituted with a fluorine, with OR5 or NR?R? as defined above; e) CO2Ra, in which Ra represents hydrogen, alkyl or a carboxyl-protecting group, and also novel intermediate compounds. The quinolines of formula (I) are intermediates useful in the preparation of compounds having antibacterial activity, described in particular in applications WO 02/40474 or WO 02/72572.
    Type: Application
    Filed: November 10, 2004
    Publication date: August 18, 2005
    Applicant: Aventis Pharma S.A.
    Inventors: Youssef El-Ahmad, Jean-Pierre Leconte, Joel Malpart, Serge Mignani, Stephane Mutti, Michel Tabart
  • Publication number: 20050165005
    Abstract: The present invention relates to the novel derivatives of formula (I) in which A is, if it is present, a (C1-C6) alkyl, a (C3-C6) alkenyl, a (C3-C6) alkynyl, a (C3-C7) cycloalkyl or a (C5-C7) cycloalkenyl, R1 is an NR6R7, (C4-C7) azacycloalkyl, (C5-C7) azacycloalkenyl, (C5-C9) azabicycloalkyl or (C5-C9) azabicycloalkenyl group; A-R1 is such that the nitrogen of R1 and the nitrogen in the 1-position of the pyrazole are necessarily separated by at least two carbon atoms, R3 is an H, halogen, OH, SH, NH2, ORc, SRc, SORa, SO2Ra, NHCHO, NRaRb, NHC(O)Ra, NHC(S)Ra or NHSO2Ra, R4 is an aryl or heteroaryl; and R5 is an H, halogen, CF3, CHF2, CH2F, linear or branched (C1-C6) alkyl or (C3-C7) cycloalkyl to their racemates, enantiomers and diastereoisomers and to their mixtures, their tautomers and to their pharmaceutically acceptable salts.
    Type: Application
    Filed: November 24, 2004
    Publication date: July 28, 2005
    Applicant: Aventis Pharma S.A.
    Inventors: Arielle Genevois-Borella, Jean-Luc Malleron, Jean Bouquerel, Gilles Doerflinger, Andrees Bohme, Gaetan Touyer, Jean-Francois Sabuco, Corrine Terrier, Serge Mignani, Michel Evers, Youssef El-Ahmad
  • Patent number: 6903217
    Abstract: Heterocyclylalkylpiperidine derivatives of general formula (I) in their enantiomeric or diastereoisomeric forms or mixtures of these forms, and/or, where appropriate, in their syn or anti form or a mixture thereof, as well as any salt thereof.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: June 7, 2005
    Assignee: Aventis Pharma S.A.
    Inventors: Eric Bacqué , Jean-Christophe Carry, Youssef El-Ahmad, Michel Evers, Philippe Hubert, Jean-Luc Malleron, Serge Mignani, Guy Pantel, Michel Tabart, Fabrice Viviani
  • Patent number: 6841562
    Abstract: Quinolylpropylpiperidine derivatives of general formula (I) in which R1a is hydrogen, halogen, hydroxyl, amino, alkylamino, dialkylamino, hydroxyamino, alkoxyamino or alkylalkoxyamino and R1b is hydrogen, or R1a and R1b form an oxo, R2 is carboxyl, carboxymethyl or hydroxymethyl, R3 is alkyl either substituted with phenylthio optionally substituted with halogen, hydroxyl, alkyl, alkoxy, trifluoromethyl, trifluoromethoxy, carboxyl, alkoxycarbonyl, cyano or amino, or with cycloalkylthio (3 to 7 members) optionally substituted with halogen or trifluoromethyl, or with heteroarylthio (5 to 6 members and 1 to 4 heteroatoms chosen from N, O and S), optionally substituted with halogen, hydroxyl, alkyl, alkoxy, trifluoromethyl, trifluoromethoxy, carboxyl, alkoxycarbonyl, cyano or amino or R3 is propargyl substituted with phenyl or heteroaryl as defined above, R4 is alkyl, alkenyl-CH2— or alkynyl-CH2—, cycloalkyl or cycloalkylalkyl, in their various isomeric forms, separate or as mixtures, and also their salts, their p
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: January 11, 2005
    Assignee: Aventis Pharma S.A.
    Inventors: Eric Bacqué, Antony Bigot, Youssef El Ahmad, Jean-Luc Malleron, Serge Mignani, Baptiste Ronan, Michel Tabart, Fabrice Viviani