Design, Synthesis, and Antimicrobial Activity of Certain New Indole-1,2,4 Triazole Conjugates

The increasing prevalence of microbial infections and the emergence of resistance to the currently available antimicrobial drugs urged the development of potent new chemical entities with eminent pharmacokinetic and/or pharmacodynamic profiles. Thus, a series of new indole-triazole conjugates <b&...

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Main Authors: Reem I. Al-Wabli, Mona A. Alsulami, Sarah I. Bukhari, Nadine M. S. Moubayed, Maha S. Al-Mutairi, Mohamed I. Attia
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/26/8/2292
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author Reem I. Al-Wabli
Mona A. Alsulami
Sarah I. Bukhari
Nadine M. S. Moubayed
Maha S. Al-Mutairi
Mohamed I. Attia
author_facet Reem I. Al-Wabli
Mona A. Alsulami
Sarah I. Bukhari
Nadine M. S. Moubayed
Maha S. Al-Mutairi
Mohamed I. Attia
author_sort Reem I. Al-Wabli
collection DOAJ
description The increasing prevalence of microbial infections and the emergence of resistance to the currently available antimicrobial drugs urged the development of potent new chemical entities with eminent pharmacokinetic and/or pharmacodynamic profiles. Thus, a series of new indole-triazole conjugates <b>6a-u</b> was designed and synthesized to be assessed as new antimicrobial candidates using the diameter of the inhibition zone and minimum inhibitory concentration assays against certain microbial strains. Their in vitro antibacterial evaluation revealed good to moderate activity against most of the tested Gram-negative strains with diameter of the inhibition zone (DIZ) values in the range of 11–15 mm and minimum inhibition concentration (MIC) values around 250 µg/mL. Meanwhile, their in vitro antifungal evaluation demonstrated a potent activity against <i>Candida tropicalis</i> with MIC value as low as 2 µg/mL for most of the tested compounds. Moreover, compound <b>6f</b> is the most potent congener with an MIC value of 2 µg/mL against <i>Candida albicans</i>.
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spelling doaj.art-41d9455c19a3453292da5ee7a681a9862023-11-21T15:41:44ZengMDPI AGMolecules1420-30492021-04-01268229210.3390/molecules26082292Design, Synthesis, and Antimicrobial Activity of Certain New Indole-1,2,4 Triazole ConjugatesReem I. Al-Wabli0Mona A. Alsulami1Sarah I. Bukhari2Nadine M. S. Moubayed3Maha S. Al-Mutairi4Mohamed I. Attia5Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi ArabiaDepartment of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi ArabiaDepartment of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi ArabiaBotany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi ArabiaDepartment of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi ArabiaThe increasing prevalence of microbial infections and the emergence of resistance to the currently available antimicrobial drugs urged the development of potent new chemical entities with eminent pharmacokinetic and/or pharmacodynamic profiles. Thus, a series of new indole-triazole conjugates <b>6a-u</b> was designed and synthesized to be assessed as new antimicrobial candidates using the diameter of the inhibition zone and minimum inhibitory concentration assays against certain microbial strains. Their in vitro antibacterial evaluation revealed good to moderate activity against most of the tested Gram-negative strains with diameter of the inhibition zone (DIZ) values in the range of 11–15 mm and minimum inhibition concentration (MIC) values around 250 µg/mL. Meanwhile, their in vitro antifungal evaluation demonstrated a potent activity against <i>Candida tropicalis</i> with MIC value as low as 2 µg/mL for most of the tested compounds. Moreover, compound <b>6f</b> is the most potent congener with an MIC value of 2 µg/mL against <i>Candida albicans</i>.https://www.mdpi.com/1420-3049/26/8/2292indole1,2,4-triazole-3-thiolantibacterialantifungal
spellingShingle Reem I. Al-Wabli
Mona A. Alsulami
Sarah I. Bukhari
Nadine M. S. Moubayed
Maha S. Al-Mutairi
Mohamed I. Attia
Design, Synthesis, and Antimicrobial Activity of Certain New Indole-1,2,4 Triazole Conjugates
Molecules
indole
1,2,4-triazole-3-thiol
antibacterial
antifungal
title Design, Synthesis, and Antimicrobial Activity of Certain New Indole-1,2,4 Triazole Conjugates
title_full Design, Synthesis, and Antimicrobial Activity of Certain New Indole-1,2,4 Triazole Conjugates
title_fullStr Design, Synthesis, and Antimicrobial Activity of Certain New Indole-1,2,4 Triazole Conjugates
title_full_unstemmed Design, Synthesis, and Antimicrobial Activity of Certain New Indole-1,2,4 Triazole Conjugates
title_short Design, Synthesis, and Antimicrobial Activity of Certain New Indole-1,2,4 Triazole Conjugates
title_sort design synthesis and antimicrobial activity of certain new indole 1 2 4 triazole conjugates
topic indole
1,2,4-triazole-3-thiol
antibacterial
antifungal
url https://www.mdpi.com/1420-3049/26/8/2292
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