Synthesis and biological evaluation of novel benzothiophene derivatives
Abstract Benzothiophene derivatives were synthesized regioselectively using coupling reactions and electrophilic cyclization reactions. Antimicrobial properties of isolated compounds were tested against indicator microorganisms such as C. albicans ATCC 10231, B. subtilis ATCC 6633, E. coli ATCC 25922 and S. aureus ATCC 25923. 3-(4-aminobenzoethynyl)-2-(thiophen-2-yl) benzo[b]thiophene (12E), 3-ethynyl-2-(thiophen-2-yl) benzo[b]thiophene (12L) and 3-(2-aminobenzoethynyl)-2-(thiophen-2-yl) benzo[b]thiophene (12J) displayed high antibacterial activity against S. aureus. Further, 3-iodo-2-(thiophen-2-yl) benzo[b]thiophene (10) and 3-(trimethylsilylethynyl)-2-(thiophen-2-yl) benzo[b] thiophene (12K) were found to have potentials to be used as antifungal agents against current fungal diseases. Novel 3-(1H-indole-2-yl)-2-(thiophen-2-yl) benzo[b] thiophene (16) and 3-(4-aminobenzoethynyl)-2-(thiophen-2-yl) benzo[b] thiophene (12E) also showed quite high antioxidant capacities with TEAC values of 2.5 and 1.1, respectively; which surpassed the antioxidant capacity of an universally accepted reference of trolox. Graphical Abstract Benzothiophene derivatives were synthesized regioselectively using coupling reactions and electrophilic cyclization reactions. Antimicrobial properties of the compounds were tested against four indicator microorganisms, and a few displayed high antibacterial activity against S. aureus. 3-(1H-indole-2-yl)-2-(thiophen-2-yl)benzo[b]thiophene (16) and 3-(4-aminobenzoethynyl)-2-(thiophen-2-yl)benzo[b]thiophene (12E) showed high antioxidant capacities which are better than the reference of trolox..
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2018 |
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Erschienen: |
2018 |
Enthalten in: |
Zur Gesamtaufnahme - volume:130 |
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Enthalten in: |
Journal of chemical sciences - 130(2018), 9 vom: 11. Aug. |
Sprache: |
Englisch |
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Beteiligte Personen: |
Algso, Muheb A S [VerfasserIn] |
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Links: |
Volltext [lizenzpflichtig] |
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BKL: | |
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Themen: |
Anti-microbial agents |
doi: |
10.1007/s12039-018-1523-3 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
SPR024048496 |
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520 | |a Abstract Benzothiophene derivatives were synthesized regioselectively using coupling reactions and electrophilic cyclization reactions. Antimicrobial properties of isolated compounds were tested against indicator microorganisms such as C. albicans ATCC 10231, B. subtilis ATCC 6633, E. coli ATCC 25922 and S. aureus ATCC 25923. 3-(4-aminobenzoethynyl)-2-(thiophen-2-yl) benzo[b]thiophene (12E), 3-ethynyl-2-(thiophen-2-yl) benzo[b]thiophene (12L) and 3-(2-aminobenzoethynyl)-2-(thiophen-2-yl) benzo[b]thiophene (12J) displayed high antibacterial activity against S. aureus. Further, 3-iodo-2-(thiophen-2-yl) benzo[b]thiophene (10) and 3-(trimethylsilylethynyl)-2-(thiophen-2-yl) benzo[b] thiophene (12K) were found to have potentials to be used as antifungal agents against current fungal diseases. Novel 3-(1H-indole-2-yl)-2-(thiophen-2-yl) benzo[b] thiophene (16) and 3-(4-aminobenzoethynyl)-2-(thiophen-2-yl) benzo[b] thiophene (12E) also showed quite high antioxidant capacities with TEAC values of 2.5 and 1.1, respectively; which surpassed the antioxidant capacity of an universally accepted reference of trolox. Graphical Abstract Benzothiophene derivatives were synthesized regioselectively using coupling reactions and electrophilic cyclization reactions. Antimicrobial properties of the compounds were tested against four indicator microorganisms, and a few displayed high antibacterial activity against S. aureus. 3-(1H-indole-2-yl)-2-(thiophen-2-yl)benzo[b]thiophene (16) and 3-(4-aminobenzoethynyl)-2-(thiophen-2-yl)benzo[b]thiophene (12E) showed high antioxidant capacities which are better than the reference of trolox. | ||
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