Synthesis and Antimicrobial Evaluation of Novel Pyrazolopyrimidines Incorporated with Mono- and Diphenylsulfonyl Groups

A novel series of pyrazolo[1,5-<i>a</i>]pyrimidine ring systems containing phenylsulfonyl moiety have been synthesized via the reaction of 2-(phenylsulfonyl)-1-(4-(phenylsulfonyl) phenyl)ethan-1-one, 2-benzenesulfonyl-1-(4-benzenesulfonyl-phenyl)-3-dimethylamino-propenone and 3-(dimethyl...

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Main Authors: Amani M. R. Alsaedi, Thoraya. A. Farghaly, Mohamed R. Shaaban
Format: Article
Language:English
Published: MDPI AG 2019-11-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/24/21/4009
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author Amani M. R. Alsaedi
Thoraya. A. Farghaly
Mohamed R. Shaaban
author_facet Amani M. R. Alsaedi
Thoraya. A. Farghaly
Mohamed R. Shaaban
author_sort Amani M. R. Alsaedi
collection DOAJ
description A novel series of pyrazolo[1,5-<i>a</i>]pyrimidine ring systems containing phenylsulfonyl moiety have been synthesized via the reaction of 2-(phenylsulfonyl)-1-(4-(phenylsulfonyl) phenyl)ethan-1-one, 2-benzenesulfonyl-1-(4-benzenesulfonyl-phenyl)-3-dimethylamino-propenone and 3-(dimethylamino)-1-(4-(phenylsulfonyl)phenyl)prop-2-en-1-one each with various substituted aminoazopyrazole derivatives in one pot reaction strategy. The proposed structure as well as the mechanism of their reactions were discussed and proved with all possible spectral data. The results of antimicrobial activities of the new sulfone derivatives revealed that several derivatives showed activity exceeding the activity of reference drug. Contrary to expectations, we found that derivatives containing one sulfone group are more effective against all bacteria and fungi used than those contain two sulfone groups.
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spelling doaj.art-d20da1dc64d84b23abe4de9fbe3a26102022-12-22T01:57:45ZengMDPI AGMolecules1420-30492019-11-012421400910.3390/molecules24214009molecules24214009Synthesis and Antimicrobial Evaluation of Novel Pyrazolopyrimidines Incorporated with Mono- and Diphenylsulfonyl GroupsAmani M. R. Alsaedi0Thoraya. A. Farghaly1Mohamed R. Shaaban2Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah Almukaramah 21514, Saudi ArabiaDepartment of Chemistry, Faculty of Science, Cairo University, Giza 12613, EgyptDepartment of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah Almukaramah 21514, Saudi ArabiaA novel series of pyrazolo[1,5-<i>a</i>]pyrimidine ring systems containing phenylsulfonyl moiety have been synthesized via the reaction of 2-(phenylsulfonyl)-1-(4-(phenylsulfonyl) phenyl)ethan-1-one, 2-benzenesulfonyl-1-(4-benzenesulfonyl-phenyl)-3-dimethylamino-propenone and 3-(dimethylamino)-1-(4-(phenylsulfonyl)phenyl)prop-2-en-1-one each with various substituted aminoazopyrazole derivatives in one pot reaction strategy. The proposed structure as well as the mechanism of their reactions were discussed and proved with all possible spectral data. The results of antimicrobial activities of the new sulfone derivatives revealed that several derivatives showed activity exceeding the activity of reference drug. Contrary to expectations, we found that derivatives containing one sulfone group are more effective against all bacteria and fungi used than those contain two sulfone groups.https://www.mdpi.com/1420-3049/24/21/4009antimicrobial activitypyrazolopyrimidineaminopyrazolesmicrowavesstructure-activity relationship (sar)
spellingShingle Amani M. R. Alsaedi
Thoraya. A. Farghaly
Mohamed R. Shaaban
Synthesis and Antimicrobial Evaluation of Novel Pyrazolopyrimidines Incorporated with Mono- and Diphenylsulfonyl Groups
Molecules
antimicrobial activity
pyrazolopyrimidine
aminopyrazoles
microwaves
structure-activity relationship (sar)
title Synthesis and Antimicrobial Evaluation of Novel Pyrazolopyrimidines Incorporated with Mono- and Diphenylsulfonyl Groups
title_full Synthesis and Antimicrobial Evaluation of Novel Pyrazolopyrimidines Incorporated with Mono- and Diphenylsulfonyl Groups
title_fullStr Synthesis and Antimicrobial Evaluation of Novel Pyrazolopyrimidines Incorporated with Mono- and Diphenylsulfonyl Groups
title_full_unstemmed Synthesis and Antimicrobial Evaluation of Novel Pyrazolopyrimidines Incorporated with Mono- and Diphenylsulfonyl Groups
title_short Synthesis and Antimicrobial Evaluation of Novel Pyrazolopyrimidines Incorporated with Mono- and Diphenylsulfonyl Groups
title_sort synthesis and antimicrobial evaluation of novel pyrazolopyrimidines incorporated with mono and diphenylsulfonyl groups
topic antimicrobial activity
pyrazolopyrimidine
aminopyrazoles
microwaves
structure-activity relationship (sar)
url https://www.mdpi.com/1420-3049/24/21/4009
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AT thorayaafarghaly synthesisandantimicrobialevaluationofnovelpyrazolopyrimidinesincorporatedwithmonoanddiphenylsulfonylgroups
AT mohamedrshaaban synthesisandantimicrobialevaluationofnovelpyrazolopyrimidinesincorporatedwithmonoanddiphenylsulfonylgroups