Synthesis and biological evaluation of ethacrynic acid derivatives bearing sulfonamides as potent anti-cancer agents.

Abdelmoula El Abbouchi, Nabil El Brahmi, Marie-Aude Hiebel, Jérôme Bignon, Gérald Guillaumet, Franck Suzenet, Saïd El Kazzouli

Bioorganic & medicinal chemistry letters 2020 Oct 01

filter terms:

A series of ethacrynic acid (2-[2,3-dichloro-4-(2-methylidenebutanoyl)phenoxy]acetic acid) (EA, Edecrin) containing sulfonamides linked via three types of linkers namely 1,2-ethylenediamine, piperazine and 4-aminopiperidine was synthesized and subsequently evaluated in vitro against HL60 and HCT116 cancer cell lines. All the EA analogs, excluding 6a and 6c, showed anti-proliferative activity with IC50s in the micromolar range (less than 4 uM). Three derivatives 6b, 7b and 7e were selected for their interesting dual activity on HL60 cell line in order to be further evaluated against a panel of cancer cell lines (HCT116, A549, MCF7, PC3, U87-MG and SKOV3) as well as on MRC5 as a normal cell line. These compounds displayed IC50 values in nanomolar range against A549, MCF7, PC3 and HCT116 cell lines, deducing the discovery that piperazine or 4-aminopiperidine is the linker's best choice to develop EA analogs with highly potent anti-proliferative activities own up to 24 nM. Besides, in terms of selectivity, those linkers are more suitable offering safety ratios of up to 63.8. Copyright © 2020. Published by Elsevier Ltd.

Citation

Abdelmoula El Abbouchi, Nabil El Brahmi, Marie-Aude Hiebel, Jérôme Bignon, Gérald Guillaumet, Franck Suzenet, Saïd El Kazzouli. Synthesis and biological evaluation of ethacrynic acid derivatives bearing sulfonamides as potent anti-cancer agents. Bioorganic & medicinal chemistry letters. 2020 Oct 01;30(19):127426