摘要:
The present invention is directed to compounds, compositions and methods for treating or preventing viral infections, in particular, HIV, HBV, and HCV, in human patients or other animal hosts. The compounds are 3′-azido-2′,3′-dideoxy purine nucleosides or phosphonates, and pharmaceutically acceptable, salts, prodrugs, and other derivatives thereof. In particular, the compounds show potent antiviral activity against HIV-1 resistance mutants including HIV-1K65R, HTV-1K70E, HIV-1L74V, HIV-1M184V, HIV-1Q151M and inhibitory activity against HIV-1 RT harboring TAMS or insertion mutations including HIV-1AZT3, HIV-1AZT7, HIV-1AZT9, HIV-1Q151M, or HIV-169insertion. In one embodiment, the compounds are 3′-azido-ddA, 3′-azido-ddG, or combinations thereof, administered with one or more additional antiviral agents that select for TAM mutations and/or the M 184V mutation, along with a pharmaceutically acceptable carrier.
摘要:
The present invention provides an isolated HIV-1 mutant and isolated nucleic acid molecules comprising HIV-RT coding sequences harboring a novel mutation in the S68 codon, and in particular, deletions of the S68 codon. This novel deletion reduces the sensitivity of HIV to various nucleoside reverse transcriptase inhibitors. Methods of using this mutation for selecting effective antiretroviral agents in vitro and in vivo, methods for monitoring infection progression in HIV-infected individuals and methods for avoiding the emergence of and/or to treat individuals infected with HIV comprising mutations at the S68 codon of HIV-RT, e.g., S68del, are provided.
摘要:
A class of 2′-fluoro-nucleoside compounds are disclosed which are useful in the treatment of hepatitis B infection, hepatitis C infection, HIV and abnormal cellular proliferation, including tumors and cancer. The compounds have the general formula: wherein Base is a purine or pyrimidine base; R1 is OH, H, OR3, N3, CN, halogen, including F, or CF3, lower alkyl, amino, lower alkylamino, di(lower)alkylamino, or alkoxy, and base refers to a purine or pyrimidine base; R2 is H, phosphate, including monophosphate, diphosphate, triphosphate, or a stabilized phosphate prodrug; acyl, or other pharmaceutically acceptable leaving group which when administered in vivo, is capable of providing a compound wherein R2 is H or phosphate; sulfonate ester including alkyl or aryalkyl sulfonyl including methanesulfonyl, benzyl, wherein the phenyl group is optionally substituted with one or more substituents as described in the definition of aryl given above, a lipid, an amino acid, peptide, or cholesterol; and R3 is acyl, alkyl, phosphate, or other pharmaceutically acceptable leaving group which when administered in vivo, is capable of being cleaved to the parent compound, or a pharmaceutically acceptable salt thereof.
摘要:
The present invention discloses a method for treating HIV that includes administering β-D-D4FC or its pharmaceutically acceptable salt or prodrug to a human in need of therapy in combination or alternation with a drug that induces a mutation in HIV-1 at a location other than the 70(K to N), 90 or the 172 codons of the reverse transcriptase region. Also disclosed is a method for using β-D-D4FC as “salvage therapy” to patients which exhibit drug resistance to other anti-HIV agents. β-D-D4FC can be used generally as salvage therapy for any patient which exhibits resistance to a drug that induces a mutation at other than the 70(K to N), 90 or the 172 codons.
摘要:
A method and composition for treating a host infected with a Caliciviridae virus, such as a Norovirus, comprising administering an effective treatment amount of a described modified nucleoside or a pharmaceutically acceptable salt thereof, is provided.
摘要:
A class of 2′-fluoro-nucleoside compounds are disclosed which are useful in the treatment of hepatitis B infection, hepatitis C infection, HIV and abnormal cellular proliferation, including tumors and cancer. The compounds have the general formulae: wherein Base is a purine or pyrimidine base; R1 is OH, H, OR3, N3, CN, halogen, including F, or CF3, lower alkyl, amino, lower alkylamino, di(lower)alkylamino, or alkoxy, and base refers to a purine or pyrimidine base; R2 is H, phosphate, including monophosphate, diphosphate, triphosphate, or a stabilized phosphate prodrug; acyl, or other pharmaceutically acceptable leaving group which when administered in vivo, is capable of providing a compound wherein R2 is H or phosphate; sulfonate ester including alkyl or aryalkyl sulfonyl including methanesulfonyl, benzyl, wherein the phenyl group is optionally substituted with one or more substituents as described in the definition of aryl given above, a lipid, an amino acid, peptide, or cholesterol; and R3 is acyl, alkyl, phosphate, or other pharmaceutically acceptable leaving group which when administered in vivo, is capable of being cleaved to the parent compound, or a pharmaceutically acceptable salt thereof.
摘要:
A method and composition for the treatment of HIV infection, HBV infection, or abnormal cellular proliferation in humans and other host animals is disclosed that includes the administration of an effective amount of a 1,3-oxaselenolane nucleoside or a pharmaceutically acceptable salt thereof, optionally in a pharmaceutically acceptable carrier.
摘要:
Carboranyl-containing nucleosides and oligonucleotides are provided for use in boron neutron capture therapy (BNCT) and for other therapeutic and diagnostic purposes.
摘要:
Compounds and pharmaceutical compositions active against hepatitis B virus are provided, as is a method for the treatment of hepatitis B virus infection in humans and other host animals is provided comprising administering an effective amount of a &bgr;-L-(2′or 3′-azido)-2′,3′-dideoxy-5-fluorocytosine of the formula wherein R is H, acyl, monophosphate, diphosphate, or triphosphate, or a stabilized phosphate derivative (to form a stabilized nucleotide prodrug), and R′is H, acyl, or alkyl.
摘要:
Compounds and pharmaceutical compositions active against HIV are provided, as is a method for the treatment of HIV infection in humans and other host animals is provided comprising administering an effective amount of a &bgr;-L-(2′ or 3′-azido)-2′,3′-dideoxy-5-fluorocytosine of the formula wherein R is H, acyl, monophosphate, diphosphate, or triphosphate, or a stabilized phosphate derivative (to form a stabilized nucleotide prodrug), and R′ is H, acyl, or alkyl.