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Unsaturated acetylene phosphonate derivatives of purines

  • US 5,817,647 A
  • Filed: 11/17/1995
  • Issued: 10/06/1998
  • Est. Priority Date: 04/01/1993
  • Status: Expired due to Fees
First Claim
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1. A compound of the formula:

  • ##STR24## the stereoisomeric forms and mixtures thereof, tautomeric forms or the pharmaceutically acceptable salts thereof, whereinX1 is H or NH2 ;

    X2 is OH or NH2 ;

    Z is nothing, CH2, CH2 CH2, or CH2 O;

    W is ##STR25## wherein T is nothing, T'"'"' or T", whereinT'"'"' is CH2 CH2, andT" is CH2 OCH2, CH2 OCH(CH2 OH);

    R3 and R4 are each independently OH, OR5, OR5 '"'"', or --O--CH(R6)--O--C(O)R5, provided that when one of R3 and R4 is OH the other is not --O--CH(R6)--O--C(O)R5, wherein R5 and R5 '"'"' are each independently C1-15 alkyl or benzyl, and R6 is H or C1-10 alkyl.

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