Ml. Taha et al., SYNTHESIS OF SOME 4-SUBSTITUTED (2-HYDROXYETHOXY)METHYL]PYRAZOLO[3,4-D]PYRIMIDINES, Bulletin des Societes chimiques belges, 105(5), 1996, pp. 279-285
A number of 4-substituted pyrazolo[3,4-d]pyrimidines <(1a-f)under bar>
has been coupled with (2-acetoxyethoxy)methylbromide (2) under bar, u
sing liquid-liquid and solid-liquid phase transfer catalysis. The infl
uence of the solvent and catalyst has been studied. The N-1 isomers ha
ve been regioselectively formed in a fairly good yields. All compounds
<(4a-h)under bar> have been evaluated against HIV and various DNA vir
uses and they have been found to be inactive.