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Design, synthesis, and characterization of some novel pyrazolo [1,5-a] pyrimidines as potent antimicrobial agents

✍ Scribed by Bhaskar S. Dawane; Shankaraiah G. Konda; Sainath B. Zangade

Publisher: Journal of Heterocyclic Chemistry
Year: 2010
Tongue: English
Weight: 95 KB
Volume: 47
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.413

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✦ Synopsis

Abstract

magnified image A novel series of pyrazolo [1,5‐a] pyrimidines were synthesized by the condensation of substituted chalcones with 5‐amino pyrazole in presence of dimethyl formamide. All the synthesized products were characterized by the spectral analysis. Further, all newly synthesized compounds were screened for their antimicrobial activity. Most of the compounds showed potent activity. J. Heterocyclic Chem., (2010).

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## Abstract 2‐Benzyl‐ and 2‐aryloxymethyl‐3‐amino‐1‐phenyl‐pyrazolo[3,4‐__d__]pyrimidine‐4‐ones **__5a–f__** have been synthesized by reacting the corresponding arylacetylamino derivatives **__3a–f__** with hydrazine hydrate. Thionation of compounds **__5d–f__** by action of P~2~S~5~ in pyridine yi