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Synthesis, Anticancer Evaluation and Structure-Activity Analysis of Novel (E)- 5-(2-Arylvinyl)-1,3,4-oxadiazol-2-yl)benzenesulfonamides.


ABSTRACT: To learn more about the structure-activity relationships of (E)-3-(5-styryl-1,3,4-oxadiazol-2-yl)benzenesulfonamide derivatives, which in our previous research displayed promising in vitro anticancer activity, we have synthesized a group of novel (E)-5-[(5-(2-arylvinyl)-1,3,4-oxadiazol-2-yl)]-4-chloro-2-R1-benzenesulfonamides 7-36 as well as (E)-4-[5-styryl1,3,4-oxadiazol-2-yl]benzenesulfonamides 47-50 and (E)-2-(2,4-dichlorophenyl)-5-(2-arylvinyl)-1,3,4-oxadiazols 51-55. All target derivatives were evaluated for their anticancer activity on HeLa, HCT-116, and MCF-7 human tumor cell lines. The obtained results were analyzed in order to explain the influence of a structure of the 2-aryl-vinyl substituent and benzenesulfonamide scaffold on the anti-tumor activity. Compound 31, bearing 5-nitrothiophene moiety, exhibited the most potent anticancer activity against the HCT-116, MCF-7, and HeLa cell lines, with IC50 values of 0.5, 4, and 4.5 µM, respectively. Analysis of structure-activity relationship showed significant differences in activity depending on the substituent in position 3 of the benzenesulfonamide ring and indicated as the optimal meta position of the sulfonamide moiety relative to the oxadizole ring. In the next stage, chemometric analysis was performed basing on a set of computed molecular descriptors. Hierarchical cluster analysis was used to examine the internal structure of the obtained data and the quantitative structure-activity relationship (QSAR) analysis with multiple linear regression (MLR) method allowed for finding statistically significant models for predicting activity towards all three cancer cell lines.

SUBMITTER: Szafranski K 

PROVIDER: S-EPMC7139731 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Synthesis, Anticancer Evaluation and Structure-Activity Analysis of Novel (<i>E</i>)- 5-(2-Arylvinyl)-1,3,4-oxadiazol-2-yl)benzenesulfonamides.

Szafrański Krzysztof K   Sławiński Jarosław J   Tomorowicz Łukasz Ł   Kawiak Anna A  

International journal of molecular sciences 20200323 6


To learn more about the structure-activity relationships of (<i>E</i>)-3-(5-styryl-1,3,4-oxadiazol-2-yl)benzenesulfonamide derivatives, which in our previous research displayed promising in vitro anticancer activity, we have synthesized a group of novel (<i>E</i>)-5-[(5-(2-arylvinyl)-1,3,4-oxadiazol-2-yl)]-4-chloro-2-R<sup>1</sup>-benzenesulfonamides <b>7</b>-<b>36</b> as well as (<i>E</i>)-4-[5-styryl1,3,4-oxadiazol-2-yl]benzenesulfonamides <b>47</b>-<b>50</b> and (<i>E</i>)-2-(2,4-dichlorophen  ...[more]

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