Ola A. El-Sayed

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Synthesis of a novel series of structurally related pyrazoloquinoline nucleosides is described. All the newly synthesized compounds were examined for their in vitro antiviral activity against herpes(More)
Leishmania donovani, the causative agent of visceral leishmaniasis, is transmitted by sand flies and replicates intracellularly in their mammalian host cells. The emergence of drug-resistant strains(More)
2, 9-Disubstituted quinolino[2', 3'-5, 4](3-pyrazolino)pyrimidin-2-ones and purin-4-ones were synthesized and their benzodiazepine receptor activity was evaluated for their ability to displace(More)