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344322

Novel Acrylamide-Pyrazole Conjugates: Design, Synthesis and Antimicrobial Evaluation

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Organic chemistry

Abstract

A novel series of acrylamide-pyrazole conjugates were synthesized using a new strategy starting from 3-isobutyl-1-phenyl-1H-pyrazole-4-carbaldehyde 1. The reaction pathway was performed via unexpected routes to generate new pyrazole derivatives through the reaction of pyrazole methylene malononitrile 3a or pyrazole acrylic acid ethyl ester derivative 3b respectively with 2-Cyano-N-aryl acetamide derivatives 4a-e to yield the unexpected phenyl-1H-pyrazol-4-yl)-N-aryl-acrylamide derivatives 7a-e. The structures of the synthesized compounds were confirmed via elemental and spectroscopic analysis (IR, 1H NMR, 13C NMR). The antibacterial and antifungal activities of the compounds were estimated against some species of Gram (−ve) bacteria such as Klebsiella pneumoniae and Gram (+ve) bacteria that are experiencing a high rate of antibiotic resistance nowadays and against Candida albicans fungus. Compound 7c showed activities against Escherichia coli (inhibition zone 23±1 mm, and Klebsiella pneumoniae (inhibition 21±1mm (as compared to Gentamicin (inhibition zone 27±0.1 mm) & (inhibition zone 29±0.5 mm), and exhibiting potent inhibitory activity toward candida albicans fungus (inhibition zone 25±1 mm) compared to Nystatin (inhibition zone 28±0.2). Most of the novel synthesized pyrazoles showed significant potencies as compared to standard antibiotics.

DOI

10.21608/ejchem.2024.258180.9074

Keywords

pyrazole, Aryl-acrylamide, Antibacterial activity, antifungal activity

Authors

First Name

Mamdouh A.

Last Name

Abu-Zaied

MiddleName

-

Affiliation

Green Chemistry Department, Chemical Industries Research Institute, National Research Centre, Dokki, Giza,12622, Egypt

Email

mamdouh_abozaid@yahoo.com

City

-

Orcid

-

First Name

Galal

Last Name

Elgemeie

MiddleName

Hamza

Affiliation

chemistry department, faculty of science, helwan university, helwan

Email

elgemeie@yahoo.com

City

helwan

Orcid

0000-0003-3268-5975

First Name

Reham

Last Name

Mohamed-Ezzat

MiddleName

A.

Affiliation

Chemistry of Natural & Microbial Products Department, Pharmaceutical and Drug Industries Research Institute, National Research Center, Cairo, Egypt

Email

reham_amgad_2010@yahoo.com

City

Cairo

Orcid

0000-0001-6388-5350

Volume

67

Article Issue

13

Related Issue

46555

Issue Date

2024-12-01

Receive Date

2023-12-25

Publish Date

2024-12-01

Page Start

529

Page End

536

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_344322.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=344322

Order

344,322

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Novel Acrylamide-Pyrazole Conjugates: Design, Synthesis and Antimicrobial Evaluation

Details

Type

Article

Created At

30 Dec 2024