Patents Assigned to Tibotec Pharmaceuticals Ltd.
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Patent number: 7514427Abstract: HIV inhibitory compounds of formula: salts and stereoisomers thereof, wherein R1 and R2 are hydrogen or optionally substituted C1-10alkyl; R3 is n is 1, 2 or 3; R3a is nitro, cyano, amino, halo, hydroxy, C1-4alkyloxy, hydroxycarbonyl, aminocarbonyl, C 1-4alkyloxycarbonyl, mono- or di(C1-4alkyl)aminocarbonyl, C1-4alkylcarbonyl, methanimidamidyl, mono- or di(C1-4alkyl)methanimidamidyl, N-hydroxy-methanimidamidyl or Het; or R3 is a monocyclic or bicyclic aromatic heterocyclic ring system, wherein one, two, three or four ring members are nitrogen, oxygen and sulfur, and wherein the remaining ring members are carbon atoms; and wherein each of said heterocyclic ring systems may optionally be substituted; X is —NR7—, —O— or —S—; pharmaceutical compositions containing these compounds, methods for preparing these compounds and compositions.Type: GrantFiled: January 10, 2006Date of Patent: April 7, 2009Assignee: Tibotec Pharmaceuticals, Ltd.Inventors: Bart Rudolf Romanie Kesteleyn, Pierre Jean-Marie Raboisson, Wim Van De Vreken, Maxime Francis Jean-Marie Ghislain Canard
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Patent number: 7465727Abstract: The present invention relates to 5H-pyrazolo[1,5-c][1,3]benzoxazin-5-yl)phenyl methanone derivatives as inhibitors of the viral replication of the HIV virus, processes for their preparation as well as pharmaceutical compositions, their use as medicines, and diagnostic kits comprising them. The present invention also concerns combinations of the present HIV inhibitors with other anti-retroviral agents. It further relates to their use in assays as reference compounds or as reagents. The compounds of the present invention are useful for preventing or treating infection by HIV and for treating AIDS.Type: GrantFiled: April 11, 2006Date of Patent: December 16, 2008Assignee: Tibotec Pharmaceuticals Ltd.Inventors: Abdellah Tahri, Lili Hu, Dominique Louis Nestor Ghislain Surleraux, Piet Tom Bert Paul Wigerinck
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Patent number: 7462636Abstract: The present invention concerns the compounds having the formula N-oxides, salts, stereoisomeric forms, racemic mixtures, prodrugs, esters and metabolites thereof, wherein R1 and R8 each are H, optionally substituted C1-6alkyl, C2-6alkenyl, C3-7cycloalkyl, aryl, Het1, Het2; R1 may also be a radical of formula (R11aR11b)NC(R10aR10b)CR9—; t is 0, 1 or 2; R2 is H or C1-6alkyl; L is —C(?O)—, —O—C(?O)—, —NR8—C(?O)—, —O—C1-6alkanediyl-C(?O)—, —NR8—C1-6alkanediyl-C(?O)—, —S(?O)2—, —O—S(?O)2—, —NR8—S(?O)2; R3 is C1-6alkyl, aryl, C3-7cycloalkyl, C3-7cycloalkylC1-4alkyl, or arylC1-4alkyl; R4 is H, C1-4alkylOC(?O), carboxyl, aminoC(?O), mono- or di(C1-4alkyl)aminoC(?O), C3-7cycloalkyl, C2-6alkenyl, C2-6alkynyl or optionally substituted C1-6alkyl; A is C1-6alkanediyl, —C(?O)—, —C(?S)—, —S(?O)2—, C1-6alkanediyl-C(?O)—, C1-6alkanediyl-C(?S)— or C1-6alkanediyl-S(?O)2—; R5 is H, OH, C1-6alkyl, Het1C1-6alkyl, Het2C1-6alkyl, optionally substituted amino-C1-6alkyl; R6 is C1-6alkylO, Het1, Het1O, Het2, Het2O, aryl, arylO, C1-Type: GrantFiled: May 16, 2003Date of Patent: December 9, 2008Assignee: Tibotec Pharmaceuticals LtdInventors: Dominique Louis Nestor Ghislain Surleraux, Bernhard Joanna Bernard Vergouwen, Herman Augustinus De Kock
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Publication number: 20080287488Abstract: A method for improving the pharmacokinetics of drugs, which are metabolized by cytochrome P450 monooxygenase is disclosed. More specifically it relates to a method for improving the pharmacokinetics of retroviral protease inhibitors and in particular for improving the pharmacokinetics of human immunodeficiency virus (HIV) protease inhibitors. A pharmaceutical composition and its use in the manufacture of a medicament for the inhibition or treatment of an HIV infection or AIDS in a human being are also part of the invention.Type: ApplicationFiled: April 14, 2006Publication date: November 20, 2008Applicant: Tibotec Pharmaceuticals Ltd.Inventors: Gerben Albert Eleutherius Van 'T Klooster, Piet Tom Bert Paul Wigerinck, Sandra De Meyer, Lieven Elvire Colette Baert, Herman Augustinus De Kock
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Patent number: 7449463Abstract: The present invention concerns morpholinyl containing benzimidazoles having inhibitory activity on the replication of the respiratory syncytial virus and having the formula a prodrug, N-oxide, addition salt, quaternary amine, metal complex or stereochemically isomeric form thereof wherein G is a direct bond or optionally substituted C1-10alkanediyl; R1 is Ar1 or a monocyclic or bicyclic heterocycle Q is R7, pyrrolidinyl substituted with R7, piperidinyl substituted with R7 or homopiperidinyl substituted with R7; one of R2a and R3a is selected from halo, optionally mono- or polysubstituted C1-6alkyl, optionally mono- or polysubstituted C2-6alkenyl, nitro, hydroxy, Ar2, N(R4aR4b), N(R4aR4b)sulfonyl, N(R4aR4b)carbonyl, C1-6alkyloxy, Ar2oxy, Ar2C1-6alkyloxy, carboxyl, C1-6alkyloxycarbonyl, or —C(=Z)Ar2; and the other one of R2a and R3a is hydrogen; in case R2a is different from hydrogen then R2b is hydrogen, C1-6alkyl or halogen and R3b is hydrogen; in case R3a is different from hydrogen then R3b is hydrogen,Type: GrantFiled: December 20, 2004Date of Patent: November 11, 2008Assignee: Tibotec Pharmaceuticals Ltd.Inventors: Jean-François Bonfanti, Koenraad Jozef Lodewijk Andries, Jérôme Michel Claude Fortin, Philippe Muller, Frédéric Marc Maurice Doublet, Christophe Meyer, Rudy Edmond Willebrords, Tom Valerius Josepha Gevers, Philip Maria Martha Bern Timmerman
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Patent number: 7442705Abstract: This invention concerns HIV replication inhibitors of formula (I), The N-oxides, the pharmaceutically acceptable addition salts, the quaternary amines and the stereochemically isomeric forms thereof, their use as a medicine, their processes for preparation and pharmaceutical compositions comprising them.Type: GrantFiled: February 20, 2004Date of Patent: October 28, 2008Assignee: Tibotec Pharmaceuticals LtdInventors: Jerôme Emile Georges Guillemont, Elisabeth Thérese Jeanne Pasquier, Jan Heeres, Kurt Hertogs, Eva Bettens, Paulus Joannes Lewi, Marc René De Jonge, Lucien Maria Henricus Koymans, Frederik Frans Desiré Daeyaert, Hendrik Maarten Vinkers, Frank Xavier Jozef Herwig, legal representative, Paul Adriaan Jan Janssen
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Patent number: 7429677Abstract: The present invention concerns a compound having the formula (I) a N-oxide form, a stereochemical isomer, racemic mixture, salt, prodrug, ester or metabolite thereof. It further relates to processes for their preparation as well as pharmaceutical compositions, their use as medicines, and diagnostic kits comprising them. The present invention also concerns combinations of the present entry inhibitors with anti-retroviral agents. It further relates to their use in assays as reference compounds or as reagents. The compounds of the present invention are useful for preventing or treating infection by HIV and for treating AIDS.Type: GrantFiled: March 11, 2003Date of Patent: September 30, 2008Assignee: Tibotec Pharmaceuticals Ltd.Inventors: Marie-Pierre T. M. M. G De Bethune, Sandra De Meyer, Kurt Hertogs, Rong Jian Lu, Lieve Emma Jan Michiels, Abdellah Tahri, Dong Xie, Michael Eissenstat
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Patent number: 7326703Abstract: The present invention realtes to 5H-pyrazolo[1,5-c][1,3]benzoxazin-5-yl)phenyl methanone derivatives as inhibitors of the viral replication of the HIV virus, processes for their preparation as well as pharmaceutical compositions, their use as medicines, and diagnostic kits comprising them. The present invention also concerns combinations of the present HIV inhibitors with other anti-retroviral agents. It further relates to their use in assays as reference compounds or as reagents. The compounds of the present invention are useful for preventing or treating infection by HIV and for treating AIDS.Type: GrantFiled: May 4, 2005Date of Patent: February 5, 2008Assignee: Tibotec Pharmaceuticals LtdInventors: Abdellah Tahri, Lieve Emma Jan Michiels, Koenraad Lodewijk August Van Acker, Dominique Louis Nestor Ghislain Surleraux
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Patent number: 7320878Abstract: The present invention concerns a further development and use of biological assays to determine the amount or concentration of an active ingredient present in a sample. The enzyme assay of the present invention determines the amount or concentration of protease inhibitors, including retroviral protease inhibitors such as HIV inhibitors.Type: GrantFiled: November 8, 2002Date of Patent: January 22, 2008Assignees: Tibotec Pharmaceuticals, Ltd., Aaron Diamond Aids Research Center, The Rockefeller UniversityInventors: Sergei Gulnik, Betty Yu, John W Erickson, Martin Markowitz
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Patent number: 7306901Abstract: The present invention relates to methods and products for the evaluation of HIV treatment. In particular, molecular events at the HIV envelope protein and their effect on therapeutic efficacy of drugs are determined. The methods rely on providing HIV envelope nucleic acid material and evaluating a treatment either through genotyping or phenotyping. Said method may find use in multiple fields including diagnostics, drug screening, pharmacogenetics and drug development.Type: GrantFiled: August 8, 2002Date of Patent: December 11, 2007Assignee: Tibotec Pharmaceuticals, Ltd.Inventors: Sharon Kemp, Johan Hendrika Jozef Vingerhoets, Lieve Emma Jan Michiels
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Publication number: 20070208022Abstract: HIV replication inhibitors of formula (I) N-oxides, a pharmaceutically acceptable addition salts, a quaternary amines or a stereoisomeric forms thereof, wherein -a1=a2-a3=a4- is —CH?CH—CH?CH—, —N?CH—CH?CH—, —N?CH—N?CH—, —N?CH—CH?N—, —N?N—CH?CH—; -b1=b2-b3=b4- is —CH?CH—CH?CH—, —N?CH—CH?CH—, —N?CH—N?CH—, —N?CH—CH?N—, —N?N—CH?CH—; R1 is hydrogen; aryl; formyl; C1-6alkylcarbonyl; optionally substituted C1-6alkyl; C1-6alkyloxycarbonyl; R2 is OH; halo; optionally substituted C1-6alkyl, C2-6alkenyl or C2-6alkynyl; substituted carbonyl; carboxyl; CN; nitro; amino; substituted amino; polyhalomethyl; polyhalo methylthio; —S(?O)rR6; C(?NH)R6; R2a is CN; amino; substituted amino; optionally substituted C1-6alkyl; halo; optionally substituted C2-6alkyloxy; substituted carbonyl; —CH?N—NH—C(?O)—R16; optionally substituted C1-6alkyloxy C1-6alkyl; substituted C2-6alkenyl or C2-6alkynyl; —C(?N—O—R8)—C1-4alkyl; R7 or —X3—R7; X1 is —NR1—, —O—, —C(?O)—, CH2, —CHOH—, —S—, —S(?O)r—; R3 is CN; amino; C1-6alkyl; halo; optionally subType: ApplicationFiled: September 29, 2005Publication date: September 6, 2007Applicant: TIBOTEC PHARMACEUTICALS LTD.Inventors: Jerome Guillemont, Jan Heeres, Paulus Lewi
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Patent number: 7244752Abstract: The present invention concerns the compounds having the formula N-oxides, salts, stereoisomeric forms, racemic mixtures, prodrugs, esters and metabolites thereof, wherein R1 and R8 each are H, optionally substituted C1-6alkyl, C2-6alkenyl, C3-7cycloalkyl, aryl, Het1, Het2; R1 may also be a radical of formula (R11aR11b)NC(R10aR10b)CR9—; t is 0, 1 or 2; R2 is H or C1-6alkyl; L is —C(?O)—, —O—C(?O)—, —NR8—C(?O)—, —O—C1-6alkanediyl-C(?O)—, —NR8—C1-6alkanediyl-C(?O)—, —S(?O)2—, —O—S(?O)2—, —NR8—S(?O)2; R3 is C1-6alkyl, aryl, C3-7cycloalkyl, C3-7cycloalkylC1-4alkyl, or arylC1-4alkyl; R4 is H, C1-4alkylOC(?O), carboxyl, aminoC(?O), mono- or di(C1-4alkyl)aminoC(?O), C3-7cycloalkyl, C2-6alkenyl, C2-6alkynyl or optionally substituted C1-6alkyl; A is C1-6alkanediyl, —C(?O)—, —C(?S)—, —S(?O)2—, C1-6alkanediyl-C(?O)—, C1-6alkanediyl-C(?S)— or C1-6alkanediyl-S(?O)2—; R5 is H, OH, C1-6alkyl, Het1C1-6alkyl, Het2C1-6alkyl, optionally substituted aminoC1-6alkyl; R6 is C1-6alkylO, Het1, Het1O, Het2, Het2O, aryl, arylO, C1-6Type: GrantFiled: April 9, 2002Date of Patent: July 17, 2007Assignee: Tibotec Pharmaceuticals Ltd.Inventors: Dominique Louis Nestor Ghislain Surleraux, Sandrine Marie Helene Vendeville, Wim Gaston Verschueren, Marie-Pierre T. M. M. G. De Bethune, Herman Augustinus De Kock, Abdellah Tahri, Montserrat Erra Solà
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Patent number: 7199148Abstract: The present invention concerns the compounds having the formula N-oxides, salts, stereoisomeric forms, racemic mixtures, prodrugs, esters and metabolites thereof, wherein R1 and R8 each are H, optionally substituted C1-6alkyl, C2-6alkenyl, C3-7cycloalkyl, aryl, Het1, Het2; R1 may also be a radical of formula (R11aR11b)NC(R10aR10b)CR9—; t is 0, 1 or 2; R2 is H or C1-6alkyl; L is —C(?O)—, —O—C(?O)—, —NR8—C(?O)—, —O—C1-6alkanediyl-C(?O)—, —NR8—C1-6alkanediyl-C(?O)—, —S(?O)2—, —O—S(?O)2—, —NR8—S(?O)2; R3 is C1-6alkyl, aryl, C3-7cycloalkyl, C3-7cycloalkylC1-4alkyl, or arylC1-4alkyl; R4 is H, C1-4alkylOC(?O), carboxyl, aminoC(?O), mono- or di(C1-4alkyl)aminoC(?O), C3-7cycloalkyl, C2-6alkenyl, C2-6alkynyl or optionally substituted C1-6alkyl; R5a and R5b is C2-6alkenyl, C2-6alkynyl, C3-7cycloalkyl or C1-6alkyl, optionally substituted on one or more atoms; R5a and R5b may also be hydrogen, aryl, Het1, Het2; R6 is hydrogen or C1-6alkyl optionally substituted on one ore more carbon atoms.Type: GrantFiled: August 14, 2003Date of Patent: April 3, 2007Assignee: Tibotec Pharmaceuticals LtdInventors: Abdellah Tahri, Piet Tom Bert Paul Wigerinck
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Patent number: 7157495Abstract: Compositions comprising bis-tetrahydrofuran benzodioxyolyl sulfonamide compounds that are surprisingly effective protease inhibitors and a second antiretroviral compound are disclosed. Methods of inhibiting retrovirus proteases, in particular multi-drug resistant retrovirus proteases, methods of treating or preventing infection or disease associated with retrovirus infection in a mammal, and methods of inhibiting viral replication are also disclosed.Type: GrantFiled: June 25, 2003Date of Patent: January 2, 2007Assignees: Tibotec Pharmaceuticals, Ltd., The United States of America as represented by the Department of Health and Human ServicesInventors: Guangyang Wang, Michael Eissenstat, John W. Erickson, Piet T. B. P. Wigerinck
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Patent number: 7126015Abstract: The present invention relates to a method for the preparation of hexahydro-furo[2,3-b]furan-3-ol as well as novel intermediates for use in said method. More in particular the invention relates to a stereoselective method for the preparation of hexahydro-furo[2,3-b]furan-3-ol, and to a method amenable to industrial scaling up.Type: GrantFiled: September 6, 2002Date of Patent: October 24, 2006Assignee: Tibotec Pharmaceuticals Ltd.Inventors: Bart Rudolf Romanie Kesteleyn, Dominique Louis Nestor Surleraux, Peter Jan Leonard Mario Quaedflieg
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Publication number: 20060205002Abstract: Methods for isothermal titration calorimetry analysis of the binding affinity of protease inhibitors to plasma proteins. A method that can quantitatively calculate free drug concentrations of protease inhibitors in human plasma, as well as a method to calculate therapeutic amounts and dosage regimens. Furthermore, the present invention provides a method that can calculate the effect of plasma proteins on the antiviral activity (EC50 values) of protease inhibitors from their binding affinities to plasma proteins. The present invention provides as well a method that can evaluate the in vivo anti-HIV efficacy of PIs in human plasma.Type: ApplicationFiled: May 5, 2006Publication date: September 14, 2006Applicant: Tibotec Pharmaceuticals Ltd.Inventors: Dong Xie, Wei Cao, John Erickson
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Patent number: 7087373Abstract: Methods for isothermal titration calorimetry analysis of the binding affinity of protease inhibitors to plasma proteins. A method that can quantitatively calculate free drug concentrations of protease inhibitors in human plasma, as well as a method to calculate therapeutic amounts and dosage regimens. Furthermore, the present invention provides a method that can calculate the effect of plasma proteins on the antiviral activity (EC50 values) of protease inhibitors from their binding affinities to plasma proteins. The present invention provides as well a method that can evaluate the in vivo anti-HIV efficacy of PIs in human plasma.Type: GrantFiled: June 5, 2002Date of Patent: August 8, 2006Assignee: Tibotec Pharmaceuticals Ltd.Inventors: Dong Xie, Wei Cao, John W. Erickson
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Publication number: 20060166943Abstract: A present invention concerns the microbicidal activity of certain pyrimidine or triazine containing non-nucleoside reverse transcriptase inhibitors. The compounds of the present invention inhibit the systemic infection of a human being with HIV, in particular, the present compounds prevent sexual HIV transmission in humans.Type: ApplicationFiled: May 13, 2003Publication date: July 27, 2006Applicant: Tibotec Pharmaceuticals Ltd.Inventors: Jens Van Roey, Marie-Pierre De Bethune, Paul Stoffels
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Publication number: 20060025594Abstract: The present invention concerns a compound having the formula (I) a N-oxide form, a stereochemical isomer, racemic mixture, salt, prodrug, ester or metabolite thereof. It further relates to processes for their preparation as well as pharmaceutical compositions, their use as medicines, and diagnostic kits comprising them. The present invention also concerns combinations of the present entry inhibitors with anti-retroviral agents. It further relates to their use in assays as reference compounds or as reagents. The compounds of the present invention are useful for preventing or treating infection by HIV and for treating AIDS.Type: ApplicationFiled: March 11, 2003Publication date: February 2, 2006Applicant: TIBOTEC Pharmaceuticals Ltd.Inventors: Marie-Pierre De Bethune, Sandra De Meyer, Kurt Hertogs, Rong Lu, Lieve Michiels, Abdellah Tahri, Dong Xie, Michael Eissenstat
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Patent number: 6649651Abstract: Novel bis-tetrahydrofuran benzodioxolyl sulfonamide compounds which are surprisingly effective protease inhibitors. The invention also relates to pharmaceutical compositions, methods of inhibiting retrovirus proteases, in particular multidrug resistant retrovirus proteases, methods of treating or combating infection or disease associated with retrovirus infection in a mammal, and methods of inhibiting viral replication.Type: GrantFiled: December 23, 2002Date of Patent: November 18, 2003Assignee: Tibotec Pharmaceuticals LTDInventors: Piet T. B. P. Wigerinck, Guangyang Wang, Michael Eissenstat, John W. Erickson