الفهرس 
AIM OF THE WORKOnly 14 pages are availabe for public view
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Abstract
The work presented in this thesis lies in two parts and involves the synthesis of series of new pyrazoles pyrazolo[3,4-b] pyrazines and pyrrolo [2,3-d] pyrimidines of potential biological interest.the first part : the starting material 5-chloro-1,3-dipheny1-1h-pyrazole-4- carboxadehyde (1) was prepared from the easily accessiable 1,3
(4h)-one.using vilsmeier-haack reaction. -dipheny1-1h-pyrazole-5