Design, synthesis, antitubercular and antiviral properties of new spirocyclic indole derivatives

A series of indole-based spirothiazolidinones have been designed, synthesized and evaluated, in vitro, for their antitubercular, antiviral, antibacterial, and antifungal activities. The structures of the new compounds were established by IR, 1 H NMR, 13 C NMR (proton decoupled, APT, and DEPT), elect...

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Veröffentlicht in:Monatshefte für Chemie 2019-01, Vol.150 (8), p.1533-1544
Hauptverfasser: Cihan-Üstündağ, Gökçe, Naesens, Lieve, Şatana, Dilek, Erköse-Genç, Gonca, Mataracı-Kara, Emel, Çapan, Gültaze
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container_issue 8
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container_title Monatshefte für Chemie
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creator Cihan-Üstündağ, Gökçe
Naesens, Lieve
Şatana, Dilek
Erköse-Genç, Gonca
Mataracı-Kara, Emel
Çapan, Gültaze
description A series of indole-based spirothiazolidinones have been designed, synthesized and evaluated, in vitro, for their antitubercular, antiviral, antibacterial, and antifungal activities. The structures of the new compounds were established by IR, 1 H NMR, 13 C NMR (proton decoupled, APT, and DEPT), electrospray ionization mass spectrometry, and microanalysis. Compounds bearing a phenyl substituent at position 8 of the spiro ring, exhibited significant antitubercular activity against Mycobacterium tuberculosis H37Rv ATCC 27294 at concentrations of 3.9 and 7.8 µM. Still, some of the tested compounds displayed activity on mycobacteria with MIC values of 16 and 31 µM. Four of the indole-spirothiazolidinone derivatives were found to be moderately active against Punta Toro virus, yellow fever virus or Sindbis virus in Vero cells. The antiviral EC 50 values were in the range of 1.9–12 µM and the selectivity index (ratio of cytotoxic to antivirally effective concentration) was above 10 in some cases. The most potent effect was seen with the compound that is methylated at positions 2 and 8 of the spirothiazolidinone system. Graphic abstract
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subjects Analytical Chemistry
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Derivatives
Fungicides
Inorganic Chemistry
Ions
Mass spectrometry
NMR
Nuclear magnetic resonance
Organic Chemistry
Original Paper
Physical Chemistry
Selectivity
Theoretical and Computational Chemistry
Tuberculosis
Viruses
title Design, synthesis, antitubercular and antiviral properties of new spirocyclic indole derivatives
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