Abstract: The present invention relates to Cyclic Phosphate Substituted Nucleoside Compounds of Formula (I), and pharmaceutically acceptable salts thereof, wherein in A, B, R1, R2, R3, Q and V are as defined herein. The present invention also relates to compositions comprising a Cyclic Phosphate Substituted Nucleoside Compound, and methods of using the Cyclic Phosphate Substituted Nucleoside Compounds for treating or preventing HCV infection in a patient.

Abstract: The present invention relates to Cyclic Phosphate Substituted Nucleoside Compounds of Formula (I), and pharmaceutically acceptable salts thereof, wherein in A, B, R1, R2, R3, Q and V are as defined herein. The present invention also relates to compositions comprising a Cyclic Phosphate Substituted Nucleoside Compound, and methods of using the Cyclic Phosphate Substituted Nucleoside Compounds for treating or preventing HCV infection in a patient.

Abstract: Provided herein are compounds, compositions and methods for the treatment of Flaviviridae infections, including HCV infections. In certain embodiments, compounds and compositions of nucleoside derivatives are disclosed, which can be administered either alone or in combination with other anti-viral agents. In certain embodiments, the compounds are 2?-cyano, azido or amino nucleosides according to Formula 1001 or 2001: or a pharmaceutically acceptable salt, solvate, stereoisomeric form, tautomeric form, or polymorphic form thereof, wherein Base, W, R1 and R2 are as described herein.

Abstract: Provided herein are compounds, compositions and methods for the treatment of Flaviviridae infections, including HCV infections. In certain embodiments, compounds and compositions of nucleoside derivatives are disclosed, which can be administered either alone or in combination with other anti-viral agents. In certain embodiments, the compounds are 3?-substituted methyl or alkynyl nucleosides of Formula I: (I); or a pharmaceutically acceptable salt, solvate, stereoisomeric form, tautomeric form or polymorphic form thereof, wherein Base, PD, RA, RB1, RB2, RC and Z are as defined herein.

Abstract: Provided herein are compounds, compositions and methods for the treatment of Flaviviridae infections, including HCV infections. In certain embodiments, compounds and compositions of nucleoside derivatives are disclosed, which can be administered either alone or in combination with other anti-viral agents. In certain embodiments, the compounds are 3?-substituted methyl or alkynyl nucleosides of Formula I: (I); or a pharmaceutically acceptable salt, solvate, stereoisomeric form, tautomeric form or polymorphic form thereof, wherein Base, PD, RA, RB1, RB2, RC and Z are as defined herein.

Abstract: Provided herein are compounds, compositions and methods for the treatment of Flaviviridae infections, including HCV infections. In certain embodiments, compounds and compositions of nucleoside derivatives are disclosed, which can be administered either alone or in combination with other anti-viral agents. In certain embodiments, the compounds are 2?-cyano, azido or amino nucleosides according to Formula 1001 or 2001: or a pharmaceutically acceptable salt, solvate, stereoisomeric form, tautomeric form, or polymorphic form thereof, wherein Base, W, R1 and R2 are as described herein.

Abstract: Provided herein are 5,5-fused heteroarylene hepatitis C virus inhibitor compounds, for example, of Formula I, IA, or IB, pharmaceutical compositions comprising the compounds, and processes of preparation thereof. Also provided are methods of their use for the treatment of an HCV infection in a host in need thereof.

Abstract: Provided herein are compounds, compositions and methods for the treatment of Flaviviridae infections, including HCV infections. In certain embodiments, compounds and compositions of nucleoside derivatives are disclosed, which can be administered either alone or in combination with other anti-viral agents. In certain embodiments, the compounds are 2?-cyano, azido or amino nucleosides according to Formula 1001 or 2001: or a pharmaceutically acceptable salt, solvate, stereoisomeric form, tautomeric form, or polymorphic form thereof, wherein Base, W, R1 and R2 are as described herein.

Abstract: Provided herein are 5,5-fused heteroarylene hepatitis C virus inhibitor compounds, for example, of Formula I, IA, or IB, pharmaceutical compositions comprising the compounds, and processes of preparation thereof. Also provided are methods of their use for the treatment of an HCV infection in a host in need thereof.

Abstract: Provided herein are methods for treating or preventing drug-resistant hepatitis C virus infection in a subject, which comprises administering to the subject a 5,5-fused heteroarylene hepatitis C virus inhibitor compound, for example, of Formula I, IA, or IB.

Abstract: Provided herein are 5,5-fused heteroarylene hepatitis C virus inhibitor compounds, for example, of Formula I, IA, or IB, pharmaceutical compositions comprising the compounds, and processes of preparation thereof. Also provided are methods of their use for the treatment of an HCV infection in a host in need thereof.