Patents by Inventor Stephane Leonce

Stephane Leonce 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: 20100168149
    Abstract: Compound of formula (I): wherein: R1, R2, R3, R4, R5, R80, R90, R81, R91, Alk and G are as defined in the description. Medicinal products containing the same which are useful in the treatment of cancer diseases.
    Type: Application
    Filed: August 4, 2006
    Publication date: July 1, 2010
    Inventors: Gilbert Lavielle, Patrick Hautefaye, Alain Pierre, John Hickman, Stephane Leonce
  • Publication number: 20100168150
    Abstract: Compound of formula (I): wherein: R1, R2, R3, R4, R5, R80, R90, R81, R91, Alk, Alk?, X, X? and G are as defined in the description. Medicinal products containing the same which are useful in the treatment of cancer diseases.
    Type: Application
    Filed: August 4, 2006
    Publication date: July 1, 2010
    Applicant: Les Laboratoires Servier
    Inventors: Gilbert Lavielle, Patrick Hautefaye, Alain Pierre, John Hickman, Stephane Leonce
  • Patent number: 7741325
    Abstract: A compound selected from those of formula (I): wherein: B1, B2 represent carbon or nitrogen, X, Y, X1 and Y1 represent a group selected from hydrogen, halogen, hydroxy, alkoxy, nitro, cyano, trihaloalkyl and NRaRb wherein Ra and Rb are as defined in the description, R1 represents hydrogen or alkyl, R2 represents a group selected from hydrogen, alkyl, —OR?a, —NR?aR?b, —O-Ta-OR?a, —NR?a-Ta-NR?aR?b, NR?a—C(O)-TaH, —O—C(O)-TaH, —O-Ta-NRa?Rb?, —NR?a-Ta-OR?a, —NR?a-Ta-CO2R?a and —NR?a—C(O)-Ta-NR?aR?b wherein R?a, R?b, R?a and Ta are as defined in the description, R3, R4 represent hydrogen or alkyl, A represents a group of formula —CH(R5)—CH(R6)—, —CH?C(R7)—, —C(R7)?CH—, —C(O)—CH(R8)— or —CH(R8)—C(O)— wherein R5, R6, R7 and R8 are as defined in the description, its isomers, N-oxides, and addition salts thereof with a pharmaceutically acceptable acid or base, and medicinal products containing the same which are useful in the treatment of cancer.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: June 22, 2010
    Inventors: Michel Koch, François Tillequin, Sylvie Michel, John Hickman, Alain Pierre, Stéphane Leonce, Bruno Pfeiffer, Pierre Renard
  • Patent number: 7276512
    Abstract: A compound selected from those of formula (I): wherein: X and Y represent a group selected from hydrogen, halogen, hydroxy, alkoxy, nitro, cyano, alkyl, trihaloalkyl and NRaRb, wherein Ra and Rb are as defined in the description R1 represents hydrogen or alkyl R2 represents a group selected from hydrogen, alkyl, —OR?a, —NR?aR?b, —O-Ta-OR?a, —NR?a-Ta-NR?aR?b, —NR?a—C(O)-TaH, —O—C(O)-TaH, —O-Ta-NR?aR?b, —NR?a-Ta-OR?a, —NR?a-Ta-CO2R?a and —NR?a—C(O)-Ta-NR?aR?b, wherein R?a, R?a, R?b and Ta are as defined in the description R3 and R4 represent hydrogen or alkyl A represents a group of formula —CH(R5)—CH(R6)—, —CH?C(R7)—, —C(R7)?CH—, —C(O)—CH(R8) or —CH(R8)—C(O), wherein R5, R6, R7 and R8 are as defined in the description its isomers, N-oxides, and addition salts thereof with a pharmaceutically acceptable acid or base, and medicinal products containing the same which are useful in the treatment of cancer.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: October 2, 2007
    Assignee: Les Laboratoires Servier
    Inventors: Michel Koch, François Tillequin, Sylvie Michel, John Hickman, Alain Pierre, Stéphane Leonce, Bruno Pfeiffer, Pierre Renard
  • Patent number: 7202255
    Abstract: Compounds of formula (I): wherein: A is as defined in the description, Y represents a group selected from an oxygen atom and a methylene group, R2 represents a hydrogen atom and in that case: R3 represents a group selected from a hydrogen atom and the groups linear or branched (C1–C6)alkyl, aryl, aryl-(C1–C6)alkyl (in which the alkyl moiety is linear or branched) and SO2CF3, or R2 and R3 form a bond, R1 represents a group selected from a hydrogen atom and the groups linear or branched (C1–C6)alkyl, aryl and aryl-(C1–C6)alkyl (in which the alkyl moiety is linear or branched) or a linear or branched (C1–C6)alkylene chain, Z1 and Z2 each represent a hydrogen atom or Z1 and Z2, together with the carbon atoms carrying them, form a phenyl group. Medicaments.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: April 10, 2007
    Assignee: Les Laboratoires Servier
    Inventors: Gerard Coudert, Nathalie Ayerbe, Franck Lepifre, Sylvain Routier, Daniel-Henri Caignard, Pierre Renard, John Hickman, Alain Pierre, Stephane Leonce
  • Patent number: 7144891
    Abstract: A compound selected from those of formula (I): wherein: X and Y represent a group selected from hydrogen, halogen, alkoxy, nitro, cyano, alkyl, alkenyl, polyhaloalkyl and —NRaRb wherein Ra and Rb are as defined in the description, Z represents oxygen or NRc wherein Rc is as defined in the description, Ar represents aryl or heteroaryl, R1 represents hydrogen or alkyl, R2 represents a group selected from hydrogen, alkyl, —ORa and —NRaRb wherein Ra and Rb are as defined in the description, R3 and R4 represent hydrogen or alkyl, R5 represents hydrogen, ORc, NRcRd, W1—C(W2)—U—V, W1—C(W2)—W3-T1 or Z-CO—CH?CHAr wherein Rc, Rd, W1, W2, W3, U, V, T, Z and Ar are as defined in the description, its isomers, and addition salts thereof with a pharmaceutically acceptable acid or base, and medicinal products containing the same which are useful in the treatment of cancer.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: December 5, 2006
    Assignees: Les Laboratoires Servier, Centre National de la Recherche Scientifique, University Rene Descartes Paris V
    Inventors: Michel Koch, François Tillequin, Sylvie Michel, John Hickman, Alain Pierre, Stéphane Leonce, Bruno Pfeiffer, Laurence Kraus-Berthier
  • Publication number: 20060135545
    Abstract: A compound selected from those of formula (I): wherein: X and Y represent a group selected from hydrogen, halogen, alkoxy, nitro, cyano, alkyl, alkenyl, polyhaloalkyl and —NRaRb wherein Ra and Rb are as defined in the description, Z represents oxygen or NRc wherein Rc is as defined in the description, Ar represents aryl or heteroaryl, R1 represents hydrogen or alkyl, R2 represents a group selected from hydrogen, alkyl, —ORa and —NRaRb wherein Ra and Rb are as defined in the description, R3 and R4 represent hydrogen or alkyl, R5 represents hydrogen, ORc, NRcRd, W1—C(W2)—U—V, W1—C(W2)—W3-T1 or Z-CO—CH?CHAr wherein Rc, Rd, W1, W2, W3, U, V, T, Z and Ar are as defined in the description, its isomers, and addition salts thereof with a pharmaceutically acceptable acid or base, and medicinal products containing the same which are useful in the treatment of cancer.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 22, 2006
    Inventors: Michel Koch, Francois Tillequin, Sylvie Michel, John Hickman, Alain Pierre, Stephane Leonce, Bruno Pfeiffer, Laurence Kraus-Berthier
  • Publication number: 20060040930
    Abstract: Compounds of formula (I): wherein: A is as defined in the description, Y represents a group selected from an oxygen atom and a methylene group, R2 represents a hydrogen atom and in that case: R3 represents a group selected from a hydrogen atom and the groups linear or branched (C1-C6)alkyl, aryl, aryl-(C1-C6)alkyl (in which the alkyl moiety is linear or branched) and SO2CF3, or R2 and R3 form a bond, R1 represents a group selected from a hydrogen atom and the groups linear or branched (C1-C6)alkyl, aryl and aryl-(C1-C6)alkyl (in which the alkyl moiety is linear or branched) or a linear or branched (C1-C6)alkylene chain, Z1 and Z2 each represent a hydrogen atom or Z1 and Z2, together with the carbon atoms carrying them, form a phenyl group. Medicaments.
    Type: Application
    Filed: October 17, 2003
    Publication date: February 23, 2006
    Inventors: Gerard Coudert, Nathalie Ayerbe, Franck Lepiere, Sylvain Routier, Daniel-Henri Caignard, Pierre Renard, John Hickman, Alain Pierre, Stephane Leonce
  • Publication number: 20050171114
    Abstract: A compound selected from those of formula (I): wherein: B1, B2 represent carbon or nitrogen, X, Y, X1 and Y1 represent a group selected from hydrogen, halogen, hydroxy, alkoxy, nitro, cyano, trihaloalkyl and NRaRb wherein Ra and Rb are as defined in the description, R1 represents hydrogen or alkyl, R2 represents a group selected from hydrogen, alkyl, —OR?a, —NR?aR?b, —O-Ta-OR?a, —NR?a-Ta-NR?aR?b, NR?a—C(O)-TaH, —O—C(O)-TaH, —O-Ta-NRa?Rb?, —NR?a-Ta-OR?a, —NR?a-Ta-CO2R?a and —NR?a—C(O)-Ta-NR?aR?b wherein R?a, R?b, R?a and Ta are as defined in the description, R3, R4 represent hydrogen or alkyl, A represents a group of formula —CH(R5)—CH(R6)—, —CH?C(R7)—, —C(R7)?CH—, —C(O)—CH(R8)— or —CH(R8)—C(O)— wherein R5, R6, R7 and R8 are as defined in the description, its isomers, N-oxides, and addition salts thereof with a pharmaceutically acceptable acid or base, and medicinal products containing the same which are useful in the treatment of cancer.
    Type: Application
    Filed: January 31, 2005
    Publication date: August 4, 2005
    Inventors: Michel Koch, Francois Tillequin, Sylvie Michel, John Hickman, Alain Pierre, Stephane Leonce, Bruno Pfeiffer, Pierre Renard
  • Publication number: 20040266753
    Abstract: A compound selected from those of formula (I): 1
    Type: Application
    Filed: June 18, 2004
    Publication date: December 30, 2004
    Inventors: Michel Koch, Francois Tillequin, Sylvie Michel, John Hickman, Alain Pierre, Stephane Leonce, Bruno Pfeiffer, Pierre Renard
  • Patent number: 6627650
    Abstract: A compound of formula (I): wherein: R represents hydrogen, optionally substituted alkyl or alkenyl, R1 to R8, which may be identical or different, each represents hydrogen, optionally substituted alkyl, hydroxy, acyloxy, optionally substituted amino, carboxy, optionally substituted alkoxy, or alkenyloxy, or one of R1 to R8 forms, with another of R1 to R8 that is adjacent, an alkylenedioxy group, X represents oxygen or NR16 wherein R16 represents hydrogen, alkyl, aryl or arylalkyl, R9 represents hydrogen, aryl, heteroaryl, or optionally substituted, saturated or unsaturated alkyl, an isomer thereof, or an addition salt thereof with a pharmaceutically acceptable acid or base. Medicinal products containing the same which are useful as anti-cancer agents.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: September 30, 2003
    Assignee: Les Laboratoires Servier
    Inventors: Michel Wierzbicki, Marie-Françoise Boussard, Anne Rousseau, Ghanem Atassi, John Hickman, Alain Pierre, Stéphane Leonce, Nicolas Guilbaut, Laurence Kraus-Berthier
  • Publication number: 20030125369
    Abstract: Compound of formula (I): 1
    Type: Application
    Filed: June 13, 2002
    Publication date: July 3, 2003
    Inventors: Michel Wierzbicki, Marie-Francoise Boussard, Anne Rousseau, Ghanem Atassi, John Hickman, Alain Pierre, Stephane Leonce, Nicolas Guilbaud, Laurence Kraus-Berthier
  • Patent number: 6300340
    Abstract: A compound of formula (I) in which: m, and n, which may be identical or different, represent 0 or 1, X and Y, which may be identical or different, represent hydrogen or halogen or alkyl, trihaloalkyl, alkoxy, hydroxyl, cyano, nitro, amino, alkylamino, or dialkylamino, Z represent a linear or branched C4 to C12 alkylene chain in which one or more —CH2— are optionally replaced by any one of the following atoms or groups: —NR—, —O—, —S—, —SO—, SO2—, or —CONH—, or by a substituted or unsubstituted heterocylcic, A forms, with two adjacent carbon atoms of the phenyl ring, a phenyl, naphthyl or tetrahydronaphthyl ring or a heterocycle, represents any one of the groups as defined in the description, its optical isomers and its addition salts with a pharamaceutically and acceptable acid or base, and medicinal products containing the same which are useful as anticancer agents.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: October 9, 2001
    Assignee: Adir et Compagnie
    Inventors: Gilbert Lavielle, Patrick Hautefaye, Ghanem Atassi, Alain Pierre, Laurence Kraus-Berthier, Stéphane Leonce
  • Patent number: 6162822
    Abstract: A compound of formula (I) ##STR1## in which: m, and n, which may be identical or different, represent 0 or 1,X and Y, which may be identical or different, represent hydrogen or halogen or alky, trihaloalkyl, alkoxy, hydroxyl, cyano, nitro, amino, alkylamino or dialkylamino,Z represent a linear or branched C.sub.4 to C.sub.12 alkylene chain in which one or more --CH.sub.2 -- are optionally replaced by any one of the following atoms or groups: --NR--, --O--, --S--, --SO--, --SO.sub.2 --, or --CONH--, or by a substituted or unsubstituted heterocylcic,A forms, with two adjacent carbon atoms of the phenyl ring, a phenyl, naphthyl or tetrahydronaphthyl ring or a heterocycle, ##STR2## and medicinal products containing the same are useful as anticancer agent.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: December 19, 2000
    Assignee: Adir et Compagnie
    Inventors: Gilbert Lavielle, Patrick Hautefaye, Ghanem Atassi, Alain Pierre, Laurence Kraus-Berthier, Stephane Leonce
  • Patent number: 5919791
    Abstract: The compounds of formula: ##STR1## in which: R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and A are as defined in the description, their optical isomers and N-oxides and addition salts thereof with a pharmaceutically acceptable acid or base, and their use as anti-tumour agents.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: July 6, 1999
    Assignee: Adir et Compagnie
    Inventors: Claude Guillonneau, Emile Bisagni, Yves Charton, Ghanem Atassi, Alain Pierre, Stephane Leonce
  • Patent number: 5854273
    Abstract: A compound of formula (I) ##STR1## in which: X and Y, which may be identical or different, represent hydrogen or halogen or alkyl, trihaloalkyl, alkoxy, hydroxyl, cyano, nitro, amino, alkylamino, or dialkylamino,Z represent a linear or branched C.sub.4 to C.sub.12 alkylene chain in which one or more --CH.sub.2 -- are optionally replaced by any one of the following atoms or groups: --NR--, --O--, --S--, --SO--, --SO.sub.2 --, or --CONH--,A forms, with two adjacent carbon atoms of the phenyl ring, a phenyl, naphthyl or tetrahydronaphthyl ring or a heterocycle, ##STR2## represents any one of the groups as defined in the description, its optical isomers and its addition salts with a pharmaceutically-acceptable acid or base, and medicinal products containing the same which are useful as anticancer agents.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: December 29, 1998
    Assignee: ADIR et Compagnie
    Inventors: Gilbert Lavielle, Patrick Hautefaye, Ghanem Atassi, Alain Pierre, Laurence Kraus-Berthier, Stephane Leonce
  • Patent number: 5238936
    Abstract: The compounds are trisubstituted triazines and pyrimidines useful for the suppressing the resistance of tumour cells to anti-cancer agents and for suppressing the resistance of parasites to anti-parasitic agents.A compound disclosed is 2,4-diallylamino-6-{4-[(10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-yl) methylamino]piperidin-1-yl}-1,3,5-triazine.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: August 24, 1993
    Assignee: Adir et Compagnie
    Inventors: Gilbert Regnier, Alain Dhainaut, Ghanem Atassi, Alain Pierre, Stephane Leonce
  • Patent number: 5225411
    Abstract: The compounds are 2,4-(optionally substituted amino)-6-substituted s.triazines, useful for suppressing the resistance of tumour cells to anti-cancer agents and for suppressing the resistance of parasites to anti-parasitic agents.A compound disclosed is 1-[4,6-bis(allylamino)-2-s-triazinyl]-4-[2,2-bis(p.fluorophenyl)ethylamino ]piperidine.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: July 6, 1993
    Assignee: Adir et Compagnie
    Inventors: Gilbert Regnier, Alain Dhainaut, Ghanem Atassi, Alain Pierre, Stephane Leonce