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Updated: Feb 6, 2026

In vitro Reconstitution of the Active T. castaneum Telomerase
Published on: July 14, 2011
Ethenesulfonyl fluoride derivatives as telomerase inhibitors: structure-based design, SAR, and anticancer evaluation
Xing Chen1, Gao-Feng Zha2, Jie Quan Wang1
1a School of Pharmacy, Anhui Province Key Laboratory of Major Autoimmune Diseases , Anhui Institute of Innovative Drugs, Anhui Medical University , Hefei , P. R. China.
Abstract:
Based on our previous docking model, in order to carry out more rational drug design, totally 82 vinyl sulfonyl fluorides, including some 2-(hetero)arylethenesulfonyl fluorides and 1,3-dienylsulfonyl fluorides derivatives as potential human telomerase inhibitors were designed and synthesised. The in vitro anticancer activity assay showed that compound 57 (1E,3E)-4-(4-((E)-2-(fluorosulfonyl)vinyl)phenyl)buta-1,3-diene-1-sulfonyl fluoride exhibited high activity against A375 and MDA-MB-231 cell lines with IC50 1.58 and 3.22 µM, but it manifested obvious un-toxic effect against GES-1 and L-02 with IC50 with IC50 values less than 2.00 mM. By the modified TRAP assay, some compounds including 57 exhibited potent inhibitory activities against telomerase with IC50 values of 0.71-0.97 µM.
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