- Discovery of narlaprevir (SCH 900518): A potent, second generation HCV NS3 serine protease inhibitor
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Boceprevir (SCH 503034), 1, a novel HCV NS3 serine protease inhibitor discovered in our laboratories, is currently undergoing phase III clinical trials. Detailed investigations toward a second generation protease inhibitor culminated in the discovery of narlaprevir (SCH 900518), 37, with improved potency (～10-fold over 1), pharmacokinetic profile and physicochemical characteristics, currently in phase II human trials. Exploration of synthetic sequence for preparation of 37 resulted in a route that required no silica gel purification for the entire synthesis.
- Arasappan, Ashok,Bennett, Frank,Bogen, Stephane L.,Venkatraman, Srikanth,Blackman, Melissa,Chen, Kevin X.,Hendrata, Siska,Huang, Yuhua,Huelgas, Regina M.,Nair, Latha,Padilla, Angela I.,Pan, Weidong,Pike, Russell,Pinto, Patrick,Ruan, Sumei,Sannigrahi, Mousumi,Velazquez, Francisco,Vibulbhan, Bancha,Wu, Wanli,Yang, Weiying,Saksena, Anil K.,Girijavallabhan, Viyyoor,Shih, Neng-Yang,Kong, Jianshe,Meng, Tao,Jin, Yan,Wong, Jesse,McNamkra, Paul,Prongay, Andrew,Madison, Vincent,Piwinski, John J.,Cheng, Kuo-Chi,Morrison, Richard,Malcolm, Bruce,Tong, Xiao,Ralston, Robert,Njoroge, F. George
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scheme or table
p. 64 - 69
(2010/12/29)
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- Discovery of potent sulfonamide P4-capped ketoamide second generation inhibitors of hepatitis C virus NS3 serine protease with favorable pharmacokinetic profiles in preclinical species
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Hepatitis is a disease characterized by inflammation of the liver, usually producing swelling and, in many cases, permanent damage to liver tissues. Viral hepatitis C (HCV), a small (+)-RNA virus, infects chronically 3% of the world's population. Boceprevir, SCH 503034, (1) our first generation HCV inhibitor, has already established proof-of- concept and is currently in late stage (phase III) clinical trials. In view of the positive data from our first generation compound, further work aimed at optimizing its overall profile was undertaken. Herein, we report that extension of our earlier inhibitor to the P4 pocket by introducing a new sulfonamide moiety and optimization of the P1/P1′ capping led to the discovery of a novel series of inhibitors of the HCV NS3 serine protease. Optimization of the P1 residue significantly improved potency and selectivity. The combination of optimal moieties led to the discovery of compound 47 which, in addition to being a potent inhibitor of HCV subgenomic RNA replication, was also found to have good PK profile in rat, dog and monkey.
- Bogen, Stéphane L.,Arasappan, Ashok,Velazquez, Francisco,Blackman, Melissa,Huelgas, Regina,Pan, Weidong,Siegel, Elise,Nair, Latha G.,Venkatraman, Srikanth,Guo, Zhuyan,Doll, Ronald,Shih, Neng-Yang,George Njoroge
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scheme or table
p. 1854 - 1865
(2010/05/17)
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- Inhibitors of hepatitis C virus NS3/4A: α-Ketoamide based macrocyclic inhibitors
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A novel series of hepatitis C virus (HCV) NS3/4A protease inhibitors bearing a P2-P4 macrocycle and a P1-P1′ α-ketoamide serine trap is reported. The NS3 protease, which is essential for viral replication, is considered one of the most attractive targets
- Avolio, Salvatore,Robertson, Keith,Hernando, Jose Ignacio Martin,DiMuzio, Jillian,Summa, Vincenzo
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scheme or table
p. 2295 - 2298
(2009/12/31)
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- COMPOUNDS THAT INHIBIT PROTEASE CATHEPSIN S AND HCV REPLICATION
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The present invention is directed to compounds that have the dual property of acting as cathepsin S inhibitors and of inhibiting HCV replication. Such compounds are therefore useful in treating disease states that include hepatitis C, Alzheimer's disease,
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Page/Page column 30
(2009/05/30)
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- HCV INHIBITORS
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The present invention is directed to compounds that are antiviral agents. Specifically, the compounds of the present invention inhibit replication of HCV and are therefore useful in treating hepatitis C infections. The present invention is also directed to pharmaceutical compositions comprising these compounds and processes for preparing them.
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- HCV INHIBITORS
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The present invention is directed to compounds that are antiviral agents. Specifically the compounds of the present invention inhibit replication of HCV and are therefore useful in treating hepatitis C infections. The present invention is also directed to pharmaceutical compositions comprising these compounds and processes for preparing them.
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Page/Page column 56; 62; 72
(2008/06/13)
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- Pharmaceutical formulations and methods of treatment using the same
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Pharmaceutical formulations containing at least one compound of Formulae I-XXVI herein and at least one surfactant. Pharmaceutically acceptable carriers and excipients may also be included in the formulations. The formulations of the present invention are suited for use in single unit dosages.
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Page/Page column 440
(2010/11/25)
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- Liver/plasma concentration ratio for dosing hepatitis C virus protease inhibitor
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Compositions and therapeutic combinations are provided including at least one compound selected from the group consisting of compounds of Formulae I to XXVI as defined herein as well as methods of treatment, prevention or amelioration of one or more symptoms of hepatitis C, treating disorders associated with HCV virus, modulating activity of HCV protease, in which liver to plasma concentration ratio of the compound ranges from about 2:1 to about 10:1.
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Page/Page column 503
(2010/11/25)
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- Methods of treating hepatitis C virus
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Methods for preventing, ameliorating or treating one or more symptoms of Hepatitis C virus (HCV), modulating HCV protease activity and/or inhibiting cathepsin activity in a subject, wherein the methods comprise administering to a subject in need of such treatment a dosage formulation containing at least one compound of Formulae I-XXVI herein, wherein the dosage formulation is capable of maintaining an average Cmin plasma concentration of the compound at or above 10 ng/ml.
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Page/Page column 456
(2008/06/13)
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- Controlled-release formulation
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Controlled-release dosage formulations including at least one compound of Formulae I to XXVI herein and a controlled-release carrier and methods of treatment using the same are provided.
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Page/Page column 436
(2010/11/25)
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- Methods for treating hepatitis C
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Methods of treating hepatitis C are provided comprising using a therapeutically effective amount of at least one novel hepatitis C (“HCV”) protease inhibitor or, alternatively, at least one antiviral or immuno-modulating HCV agent, which is not an HCV protease inhibitor, for a first treatment period. Subsequently, a combination of the at least one novel hepatitis C (“HCV”) protease inhibitor and the at least one antiviral or immuno-modulating HCV agent are administered in a therapeutically effective amount for a second treatment period. The methods are provided for treating a wide variety of diseases, disorders and symptoms associated with hepatitis C virus by modulating the activity of HCV protease (for example HCV NS3/NS4a serine protease) in a subject.
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Page/Page column 541
(2010/11/25)
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- Methods of treating hepatitis C virus
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Compositions and therapeutic combinations are provided including at least one compound selected from the group consisting of compounds of Formulae I to XXVI as defined herein as well as methods of treatment, prevention or amelioration of one or more symptoms of hepatitis C, treating disorders associated with HCV virus, modulating activity of HCV protease, or inhibiting cathepsin activity in a subject using the same, in which the mean volume of distribution/bioavailability (Vd/F) of the compound as measured in the plasma of the subject is greater than about 1000 L.
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Page/Page column 400
(2010/11/25)
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- Medicaments and methods combining a HCV protease inhibitor and an AKR competitor
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Disclosed are medicaments, pharmaceutical compositions, pharmaceutical kits, and methods based on combinations of a hepatitis C virus (HCV) protease inhibitor and an aldo-keto reductase (AKR) competitor, for concurrent or consecutive administration in treating, preventing, or ameliorating one or more symptoms of HCV, treating disorders associated with HCV, or inhibiting cathepsin activity in a subject.
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Page/Page column 65
(2010/11/25)
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- Administration of HCV protease inhibitors in combination with food to improve bioavailability
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Methods of treating, preventing or ameliorating one or more symptoms of hepatitis C in a subject comprising the step of administering at least one HCV protease inhibitor in combination with food are provided. Also provided are methods of increasing bioavailability of an HCV protease inhibitor and methods of increasing serum levels of an HCV protease inhibitor in a subject. All methods comprise adminstering at least one HCV protease inhibitor in combination with food, the at least one HCV protease inhibitor selected from the group consisting of compounds of Formulae I-XXVI, described herein. Administration of compounds of the present invention in combination with food provides improved bioavailability and increased peak serum levels of the compounds as compared to administration without food.
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Page/Page column 612
(2010/11/25)
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- METHOD FOR MODULATING ACTIVITY OF HCV PROTEASE THROUGH USE OF A NOVEL HCV PROTEASE INHIBITOR TO REDUCE DURATION OF TREATMENT PERIOD
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Methods are provided for using at least one novel hepatitis C ("HCV") protease inhibitor in combination with at least one antiviral and/or immunomodulatory agent, which is different from the at least one HCV protease inhibitor, for treating a wide variety of diseases or disorders associated with hepatitis C virus by modulating the activity of HCV protease (for example HCV NS3/NS4a serine protease) and reducing HCV viral load in a subject in a reduced treatment period. With the present invention, a hepatitis C viral load is reduced in a subject to a concentration of less than 6?10-5 HCV virions per milliliter of plasma in a time period of less than or equal to about 24 weeks. With the present invention, a hepatitis C viral production is suppressed with an effectiveness in a range of 0.7 to 0.997. "
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Page/Page column 517
(2010/11/25)
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- METHOD OF TREATING INTERFERON NON-RESPONDERS USING HCV PROTEASE INHIBITOR
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A method of treating, preventing or ameliorating one or more symptoms associated with hepatitis C virus (HCV) in a patient in whom either the HCV is of Genotype 1 and/or the patient was previously treated with interferon and the previous interferon therapy was ineffective to treat the one or more symptoms associated with HCV, comprising administering to such a patient an effective amount of at least one compound of formulae I-XXVI of which the structural formula (I) is exemplary or a pharmaceutically acceptable salt, solvate or ester thereof. Optional combined administration of said at least one compound with an interferon or pegylated interferon and/or ribaviron is also contemplated.
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Page/Page column 384-385
(2010/11/25)
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- ASYMMETRIC DOSING METHODS
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A method of treating, preventing or ameliorating one or more symptoms of hepatitis C, or inhibiting cathepsin activity, in a subject is provided, in which at least one compound (e.g., a HCV protease inhibitor) is administered in one or more discrete dosages over a twenty-four hour time interval in an asymmetric pattern as to dosage amount and/or timing of dosage, wherein the at least one compound is selected from the group consisting of compounds of Formulae I-XXVI, described herein. Methods of modulating the activity of hepatitis C virus protease in a subject are also provided. Asymmetric dosing as to amount of dose and/or timing of dose permits adjustment of dosing to accommodate variations in drug metabolism and/or viral activity caused by viral cell division or a patient's circadian rhythms, thus delivering the maximum amount of dose at the time or times it is most effective.
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Page/Page column 421
(2010/11/25)
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- INHIBITORS OF HEPATITIS C VIRUS NS3/NS4A SERINE PROTEASE
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The present invention discloses novel compounds which have HCV protease inhibitory activity as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such compounds as well as me
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Page/Page column 63
(2008/06/13)
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- 3,4-(cyclopentyl)-fused proline compounds as inhibitors of hepatitis C virus NS3 serine protease
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The present invention discloses novel compounds which have HCV protease inhibitory activity as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such compounds as well as methods of using them to treat disorders associated with the HCV protease.
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Page/Page column 134
(2008/06/13)
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