Synthesis and antiviral evaluation of some new pyrazole and fused pyrazolopyrimidine derivatives |
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Authors: | Rashad Aymn E Hegab Mohamed I Abdel-Megeid Randa E Micky Jehan A Abdel-Megeid Farouk M E |
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Institution: | Photochemistry Department, National Research Centre, Dokki, Cairo, Egypt. aymnelzeny@yahoo.com |
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Abstract: | Some novel substituted pyrazole and pyrazolo3,4-d]pyrimidine derivatives 2, 4, 8, and 9 were synthesized. Also, some acyclic S-nucleosides of pyrazolo3,4-d]pyrimidine derivatives 10-13 were prepared via reaction of pyrazolo3,4-d]pyrimidine-4(3H)-thione derivative 9 with some acyclic sugars. Moreover, the N-nucleoside derivative 14 was prepared via reaction of compound 8 with glucosamine hydrochloride. The antiviral evaluation of some selected new products showed that they have promising antiviral activity against hepatitis-A virus (HAV) and herpes simplex virus type-1 (HSV-1). |
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