… approach for the preparation of a new series of pyrazolo[1,5-a]pyrimidine derivatives 7a–i,
11a–c and their relevant Schiff bases 13a–c. All the newly synthesized compounds were …

… These numerous synthetic pathways have prompted medicinal scientists to discover several
new drugs consisting of pyrazolo[1,5-a]pyrimidines as a core moiety. These are also known …

… synthesis of several poly substituted fused pyrazolopyrimidines. Pyrazolo[1,5-a]pyrimidines …
Symmetrical 3,6-diarylazo-2,5,7-triaminopyrazolo[1,5-a]pyrimidine (8a,b) were synthesized …

… In summary, we have synthesized a novel series of pyrazolo[1,5-a]pyrimidines 5a–d, 10a–f, …
1a, b with 1-aryl-3-(dimethylamino)prop-2-en-1-ones 2a, b, (arylidene)malononitriles 6a–c or …

… In summary, this study introduces a new derivatives of pyrimidine compounds, including
sulfapyrimidines and pyrazolo[1,5-a]pyrimidines. It was described the reaction of sulfa …

… substrates in the synthesis of several biologically active heterocyclic compounds and drug
intermediates, were chosen in this study for the synthesis of pyrazolo[1,5-a]pyrimidines 11a–j. …

… Pyrazolo[l,5-a]pyrimidines, … synthesis of a variety of heterocyclic systems for biological
evaluation 31-35, we report herein the synthesis of some new Azolo[3,4-d]pyridazines, Azolo[1,5-a]…

… The prepared pyrazolo[1,5-a]pyrimidines demonstrated a proper cytotoxicity with significant
growth inhibition of MCF-7 rather than Hep-2. Firstly, pyrazolopyrimidine derivatives 4a-c …

… The present work depicts an effective synthesis convention of pyrazolo[1,5-a]pyrimidines,
pyrazolo[5,1-c]triazines, thieno[2,3-b]pyridines and polysubstituted pyridines containing …

… to the synthesis of different fused pyrazoles for medicines [26-30], Herein, we report the
synthesis of some new thiazoles and pyrazolo[1,5-a]pyrimidines and pyrazolo[5,1-c]triazine. …