Design, synthesis, and molecular docking of new phenothiazine incorporated N-Mannich bases as promising antimicrobial agents

The present work aims to synthesize four series of phenothiazine incorporation Mannich bases. Therefore, 10-methyl-10H-phenothiazine-3-sulfonamide (4) which was subjected to react with some secondary amines and formaldehyde to give the Mannich bases 5a-f, and 6–13. Compound 13 was then subjected to...

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Main Authors: Ahmed M. Abdula, Ahmad Fawzi Qarah, Kahdr Alatawi, Jihan Qurban, Matokah M. Abualnaja, Hanadi A. Katuah, Nashwa M. El-Metwaly
Format: Article
Language:English
Published: Elsevier 2024-04-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844024046048
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author Ahmed M. Abdula
Ahmad Fawzi Qarah
Kahdr Alatawi
Jihan Qurban
Matokah M. Abualnaja
Hanadi A. Katuah
Nashwa M. El-Metwaly
author_facet Ahmed M. Abdula
Ahmad Fawzi Qarah
Kahdr Alatawi
Jihan Qurban
Matokah M. Abualnaja
Hanadi A. Katuah
Nashwa M. El-Metwaly
author_sort Ahmed M. Abdula
collection DOAJ
description The present work aims to synthesize four series of phenothiazine incorporation Mannich bases. Therefore, 10-methyl-10H-phenothiazine-3-sulfonamide (4) which was subjected to react with some secondary amines and formaldehyde to give the Mannich bases 5a-f, and 6–13. Compound 13 was then subjected to react with some secondary amines and formaldehyde to give the corresponding Mannich bases 14a-f. In total, twenty-two new compounds were synthesized and evaluated for in vitro growth inhibition activity against P. aeruginosa, E. coli, and S. aureus. Among the tested compounds, compounds 3, 5a, 5c, 6, 12, 13, 14d, and 14e exhibited good activity with a MIC value (12.5 μg/mL), compounds 5b, 10, 11, 14a, and 14c exhibited strong activity against the growth of S. aureus with a MIC value (6.25 μg/mL), and compound 14b superior against S. aureus with a MIC value (3.125 μg/mL) compared to drug reference ciprofloxacin with MIC value (2 μg/mL). The molecular docking investigation revealed the presence of many derivatives with high binding affinities and distinct interaction patterns with the target protein. Derivatives 14a-e emerged as the most promising possibilities, displaying the greatest binding energies and a varied variety of interaction types, including hydrogen bonding and pi interactions, over different distances, with derivative 14b exhibiting the highest binding energy at S = −8.3093 kcal/mol. These derivatives displayed superior binding affinities and various interaction mechanisms with the target protein, suggesting that they have great promise as lead compounds for future development into therapeutic medicines.
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spelling doaj.art-51374e03c9ea4278bd5031ea1ec5f1062024-03-27T04:52:39ZengElsevierHeliyon2405-84402024-04-01107e28573Design, synthesis, and molecular docking of new phenothiazine incorporated N-Mannich bases as promising antimicrobial agentsAhmed M. Abdula0Ahmad Fawzi Qarah1Kahdr Alatawi2Jihan Qurban3Matokah M. Abualnaja4Hanadi A. Katuah5Nashwa M. El-Metwaly6Department of Chemistry, College of Science, Mustansiriyah University, Baghdad, P.O. Box 14022, IraqDepartment of Chemistry, College of Science, Taibah University, Madinah, P. O. Box 344, Saudi ArabiaPharmaceuticals Chemistry Department, Faculty of Clinical Pharmacy, Al-Baha University, Al Baha, 65779, Saudi ArabiaDepartment of Chemistry, Collage of Science, Umm Al-Qura University, Makkah, 24230, Saudi ArabiaDepartment of Chemistry, Collage of Science, Umm Al-Qura University, Makkah, 24230, Saudi ArabiaDepartment of Chemistry, Collage of Science, Umm Al-Qura University, Makkah, 24230, Saudi ArabiaDepartment of Chemistry, Collage of Science, Umm Al-Qura University, Makkah, 24230, Saudi Arabia; Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, 35516, Egypt; Corresponding author. Department of Chemistry, Collage of Science, Umm Al-Qura University, Makkah, 24230, Saudi Arabia.The present work aims to synthesize four series of phenothiazine incorporation Mannich bases. Therefore, 10-methyl-10H-phenothiazine-3-sulfonamide (4) which was subjected to react with some secondary amines and formaldehyde to give the Mannich bases 5a-f, and 6–13. Compound 13 was then subjected to react with some secondary amines and formaldehyde to give the corresponding Mannich bases 14a-f. In total, twenty-two new compounds were synthesized and evaluated for in vitro growth inhibition activity against P. aeruginosa, E. coli, and S. aureus. Among the tested compounds, compounds 3, 5a, 5c, 6, 12, 13, 14d, and 14e exhibited good activity with a MIC value (12.5 μg/mL), compounds 5b, 10, 11, 14a, and 14c exhibited strong activity against the growth of S. aureus with a MIC value (6.25 μg/mL), and compound 14b superior against S. aureus with a MIC value (3.125 μg/mL) compared to drug reference ciprofloxacin with MIC value (2 μg/mL). The molecular docking investigation revealed the presence of many derivatives with high binding affinities and distinct interaction patterns with the target protein. Derivatives 14a-e emerged as the most promising possibilities, displaying the greatest binding energies and a varied variety of interaction types, including hydrogen bonding and pi interactions, over different distances, with derivative 14b exhibiting the highest binding energy at S = −8.3093 kcal/mol. These derivatives displayed superior binding affinities and various interaction mechanisms with the target protein, suggesting that they have great promise as lead compounds for future development into therapeutic medicines.http://www.sciencedirect.com/science/article/pii/S2405844024046048PhenothiazineN-Mannich basesMolecular dockingAntimicrobial agent
spellingShingle Ahmed M. Abdula
Ahmad Fawzi Qarah
Kahdr Alatawi
Jihan Qurban
Matokah M. Abualnaja
Hanadi A. Katuah
Nashwa M. El-Metwaly
Design, synthesis, and molecular docking of new phenothiazine incorporated N-Mannich bases as promising antimicrobial agents
Heliyon
Phenothiazine
N-Mannich bases
Molecular docking
Antimicrobial agent
title Design, synthesis, and molecular docking of new phenothiazine incorporated N-Mannich bases as promising antimicrobial agents
title_full Design, synthesis, and molecular docking of new phenothiazine incorporated N-Mannich bases as promising antimicrobial agents
title_fullStr Design, synthesis, and molecular docking of new phenothiazine incorporated N-Mannich bases as promising antimicrobial agents
title_full_unstemmed Design, synthesis, and molecular docking of new phenothiazine incorporated N-Mannich bases as promising antimicrobial agents
title_short Design, synthesis, and molecular docking of new phenothiazine incorporated N-Mannich bases as promising antimicrobial agents
title_sort design synthesis and molecular docking of new phenothiazine incorporated n mannich bases as promising antimicrobial agents
topic Phenothiazine
N-Mannich bases
Molecular docking
Antimicrobial agent
url http://www.sciencedirect.com/science/article/pii/S2405844024046048
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