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9-(1,3-DIHYDROXY-PROPOXYMETHANE)GUANINE
 
GA2 is found in 2 entries
GA2
  •   Chemical Component Summary   Hide
    Name 9-(1,3-DIHYDROXY-PROPOXYMETHANE)GUANINE
    Identifiers 2-amino-9-{[2-hydroxy-1-(hydroxymethyl)ethoxy]methyl}-1,9-dihydro-6H-purin-6-one
    2-amino-9-(1,3-dihydroxypropan-2-yloxymethyl)-1H-purin-6-one
    Formula C9 H13 N5 O4
    Molecular Weight 255.23 g/mol
    Type non-polymer
    Isomeric SMILES
    InChI
    InChI key IRSCQMHQWWYFCW-UHFFFAOYSA-N
     
  •   Drug Info: DrugBank Hide
    DrugBank ID DB01004   (Stereoisomeric match)
    Name Ganciclovir
    Groups
    • approved
    • investigational
    Description An acyclovir analog that is a potent inhibitor of the Herpesvirus family including cytomegalovirus. Ganciclovir is used to treat complications from AIDS-associated cytomegalovirus infections. [PubChem]
    Synonyms
    • 2-(6-Amino-purin-9-ylmethoxy)-propane-1,3-diol
    • 2-amino-9-((1,3-Dihydroxypropan-2-yloxy)methyl)-1H-purin-6(9H)-one
    • 2-amino-9-((1,3-Dihydroxypropan-2-yloxy)methyl)-3H-purin-6(9H)-one
    • 2-amino-9-((1,3-Dihydroxypropan-2-yloxy)methyl)-9H-purin-6-ol
    • 2-Amino-9-(2-hydroxy-1-hydroxymethyl-ethoxymethyl)-1,9-dihydro-purin-6-one
    • 2-amino-9-(2-Hydroxy-1-hydroxymethylethoxymethyl)-6,9-dihydro-1H-6-purinone
    • 9-((2-Hydroxy-1-(hydroxymethyl)ethoxy)methyl)guanine
    • 9-[(1,3-dihydroxy-2-propoxy)methyl]guanine
    • GA2
    • Ganciclovir
    • Ganciclovirum
    • Gancyclovir
    [more]
    Salts Ganciclovir Sodium
    Brand names
    • Cytovene
    • Cytovene IV
    • Vitrasert
    • Zirgan
    Affected organism Human Herpes Virus
    Indication For induction and maintenance in the treatment of cytomegalovirus (CMV) retinitis in immunocompromised patients, including patients with acquired immunodeficiency syndrome (AIDS). Also used in the treatment of severe cytomegalovirus (CMV) disease, including CMV pneumonia, CMV gastrointestinal disease, and disseminated CMV infections, in immunocompromised patients.
    Pharmacology Ganciclovir is a synthetic nucleoside analogue of 2'-deoxyguanosine that inhibits replication of herpes viruses both <i>in vitro</i> and <i>in vivo</i>. Sensitive human viruses include cytomegalovirus (CMV), herpes simplex virus -1 and -2 (HSV-1, HSV-2), Epstein-Barr virus (EBV) and varicella zoster virus (VZV), however clinical studies have been limited to assessment of efficacy in patients with CMV infection. Ganciclovir is a prodrug that is structurally similar to acyclovir. It inhibits virus replication by its encorporation into viral DNA. This encorporation inhibits dATP and leads to defective DNA, ceasing or retarding the viral machinery required to spread the virus to other cells.
    Mechanism of action Ganciclovir's antiviral activity inhibits virus replication. This inhibitory action is highly selective as the drug must be converted to the active form by a virus-encoded cellular enzyme, thymidine kinase (TK). TK catalyzes phosphorylation of ganciclovir to the monophosphate, which is then subsequently converted into the diphosphate by cellular guanylate kinase and into the triphosphate by a number of cellular enzymes. <i>In vitro</i>, ganciclovir triphosphate stops replication of herpes viral DNA. When used as a substrate for viral DNA polymerase, ganciclovir triphosphate competitively inhibits dATP leading to the formation of 'faulty' DNA. This is where ganciclovir triphosphate is incorporated into the DNA strand replacing many of the adenosine bases. This results in the prevention of DNA synthesis, as phosphodiester bridges can longer to be built, destabilizing the strand. Ganciclovir inhibits viral DNA polymerases more effectively than it does cellular polymerase, and chain elongation resumes when ganciclovir is removed.
    Route of administration
    • Intravenous
    • Intravitreal
    • Oral
    Categories Antiviral Agents
    ATC-Code
    • J05AB06
    • J05AB14
    • S01AD09
    AHFS-Code 08:18.32
    CAS number 82410-32-0
    Targets
    Name Sequence search Pharmacological action Actions
    DNA polymerase catalytic subunit   Search  yes inhibitor
    Thymidine kinase   Search  yes inducer
     
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