Synthesis and Bioactivity Evaluation of N-Arylsulfonylindole Analogs Bearing a Rhodanine Moiety as Antibacterial Agents

Due to the rapidly growing bacterial resistance to antibiotics and the scarcity of novel agents under development, bacterial infections are still a pressing global problem, making new types of antibacterial agents, which are effective both alone and in combination with traditional antibiotics, urgen...

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Main Authors: Ming-Xia Song, Song-Hui Li, Jiao-Yang Peng, Ting-Ting Guo, Wen-Hui Xu, Shao-Feng Xiong, Xian-Qing Deng
Format: Article
Language:English
Published: MDPI AG 2017-06-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/22/6/970
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author Ming-Xia Song
Song-Hui Li
Jiao-Yang Peng
Ting-Ting Guo
Wen-Hui Xu
Shao-Feng Xiong
Xian-Qing Deng
author_facet Ming-Xia Song
Song-Hui Li
Jiao-Yang Peng
Ting-Ting Guo
Wen-Hui Xu
Shao-Feng Xiong
Xian-Qing Deng
author_sort Ming-Xia Song
collection DOAJ
description Due to the rapidly growing bacterial resistance to antibiotics and the scarcity of novel agents under development, bacterial infections are still a pressing global problem, making new types of antibacterial agents, which are effective both alone and in combination with traditional antibiotics, urgently needed. In this paper, seven series of N-arylsulfonylindole analogs 5–11 bearing rhodanine moieties were synthesized, characterized, and evaluated for antibacterial activity. According to the in vitro antimicrobial results, half of the synthesized compounds showed potent inhibition against four Gram-positive bacteria, with MIC values in the range of 0.5–8 µg/mL. For multidrug-resistant strains, compounds 6a and 6c were the most potent, with MIC values of 0.5 µg/mL, having comparable activity to gatifloxacin, moxiflocaxin and norfloxacin and being 128-fold more potent than oxacillin (MIC = 64 µg/mL) and 64-fold more active than penicillin (MIC = 32 µg/mL) against Staphylococcus aureus ATCC 43300.
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spelling doaj.art-bf21b51b44e342fbb7b10dbca96ff3ce2022-12-21T23:29:33ZengMDPI AGMolecules1420-30492017-06-0122697010.3390/molecules22060970molecules22060970Synthesis and Bioactivity Evaluation of N-Arylsulfonylindole Analogs Bearing a Rhodanine Moiety as Antibacterial AgentsMing-Xia Song0Song-Hui Li1Jiao-Yang Peng2Ting-Ting Guo3Wen-Hui Xu4Shao-Feng Xiong5Xian-Qing Deng6Basic Medical and Pharmacy College, Jinggangshan University, Ji’an 343009, Jiangxi, ChinaBasic Medical and Pharmacy College, Jinggangshan University, Ji’an 343009, Jiangxi, ChinaBasic Medical and Pharmacy College, Jinggangshan University, Ji’an 343009, Jiangxi, ChinaBasic Medical and Pharmacy College, Jinggangshan University, Ji’an 343009, Jiangxi, ChinaBasic Medical and Pharmacy College, Jinggangshan University, Ji’an 343009, Jiangxi, ChinaBasic Medical and Pharmacy College, Jinggangshan University, Ji’an 343009, Jiangxi, ChinaBasic Medical and Pharmacy College, Jinggangshan University, Ji’an 343009, Jiangxi, ChinaDue to the rapidly growing bacterial resistance to antibiotics and the scarcity of novel agents under development, bacterial infections are still a pressing global problem, making new types of antibacterial agents, which are effective both alone and in combination with traditional antibiotics, urgently needed. In this paper, seven series of N-arylsulfonylindole analogs 5–11 bearing rhodanine moieties were synthesized, characterized, and evaluated for antibacterial activity. According to the in vitro antimicrobial results, half of the synthesized compounds showed potent inhibition against four Gram-positive bacteria, with MIC values in the range of 0.5–8 µg/mL. For multidrug-resistant strains, compounds 6a and 6c were the most potent, with MIC values of 0.5 µg/mL, having comparable activity to gatifloxacin, moxiflocaxin and norfloxacin and being 128-fold more potent than oxacillin (MIC = 64 µg/mL) and 64-fold more active than penicillin (MIC = 32 µg/mL) against Staphylococcus aureus ATCC 43300.http://www.mdpi.com/1420-3049/22/6/970rhodanineN-arylsulfonylindolepropanoic acidantibacterial activity
spellingShingle Ming-Xia Song
Song-Hui Li
Jiao-Yang Peng
Ting-Ting Guo
Wen-Hui Xu
Shao-Feng Xiong
Xian-Qing Deng
Synthesis and Bioactivity Evaluation of N-Arylsulfonylindole Analogs Bearing a Rhodanine Moiety as Antibacterial Agents
Molecules
rhodanine
N-arylsulfonylindole
propanoic acid
antibacterial activity
title Synthesis and Bioactivity Evaluation of N-Arylsulfonylindole Analogs Bearing a Rhodanine Moiety as Antibacterial Agents
title_full Synthesis and Bioactivity Evaluation of N-Arylsulfonylindole Analogs Bearing a Rhodanine Moiety as Antibacterial Agents
title_fullStr Synthesis and Bioactivity Evaluation of N-Arylsulfonylindole Analogs Bearing a Rhodanine Moiety as Antibacterial Agents
title_full_unstemmed Synthesis and Bioactivity Evaluation of N-Arylsulfonylindole Analogs Bearing a Rhodanine Moiety as Antibacterial Agents
title_short Synthesis and Bioactivity Evaluation of N-Arylsulfonylindole Analogs Bearing a Rhodanine Moiety as Antibacterial Agents
title_sort synthesis and bioactivity evaluation of n arylsulfonylindole analogs bearing a rhodanine moiety as antibacterial agents
topic rhodanine
N-arylsulfonylindole
propanoic acid
antibacterial activity
url http://www.mdpi.com/1420-3049/22/6/970
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