الفهرس 
acknowledgmentOnly 14 pages are availabe for public view
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Abstract
Biological and medicinal activities 1, 2, 4 triazolo 4. 3 -a pyrimidines reprent a biologically important class of compounds several of their derivative are know to possess significant antiviral 1-3, antifungal 4-6, antimicrobial 7-9 and cardiovascular 23-25 activities.