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Antiviral phosphonate compounds and methods therefor

  • US 20040023921A1
  • Filed: 04/29/2003
  • Published: 02/05/2004
  • Est. Priority Date: 04/30/2002
  • Status: Active Grant
First Claim
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1. A pharmaceutical composition comprising:

  • a nucleotide analog having a structure according to Formula 1 or Formula 2, wherein the nucleotide analog is present in the composition effective to inhibit a viral polymerase of an HCV virus or to act as a substrate for the viral polymerase of the HCV virus;

    wherein Z1 and Z2 are independently H, alkyl, halogen, OR5, SR5, NR5R6, CO-alkyl, CO-aryl, or CO-alkoxyalkyl, and wherein W is H, OR5, SR5, NR5R6, NH(NR5R6), N(alkyl)(NR5R6), CN, C(O)NR5R6, C(NH)NR5R6, or halogen;

    wherein V is hydrogen, halogen, OR5, SR5, NR5R6, NH(NR5R6), N(alkyl)(NR5R6), CN, C(O)NR5R6, or C(NH)NR5R6, and wherein Y is H, alkyl, halogen, OR5, SR5, NR5R6, CO-alkyl, CO-aryl, or CO-alkoxyalkyl;

    X is a covalent bond between the C4′

    -atom of the sugar and the carbon atom in the phosphonate group, O, CH2, CHR5, CHHalogen, or C(Halogen)2;

    D is CH2, CHHalogen, or C(Halogen)2;

    R1 and R2 are independently H, phosphate, or a group that is preferentially removed in a hepatocyte to yield a corresponding OH group;

    R1

    , R2

    , R3

    , and R4

    are independently H or alkyl;

    R3 and R4 are H, or where at least one of R1

    , R2

    , R3

    , and R4

    is alkyl, R3 and R4 are independently H, phosphate, acyl, alkyl, or a group that is preferentially removed in the hepatocyte to a corresponding C2′

    -OH group or C3′

    -OH group;

    R5 and R6 are independently H, alkyl, or acyl.

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