Miloš Svirčev , Mirjana Popsavin , Bojan Levovnik , Sanja Djokić , Jelena Kesić , Ivana Kovačević , Goran Benedeković , Bojana Srećo Zelenović , Velimir Popsavin , Vesna Kojić
{"title":"Synthesis and antiproliferative activity of thiazole bioisosteres of goniofufurone and 7-epi-goniofufurone","authors":"Miloš Svirčev , Mirjana Popsavin , Bojan Levovnik , Sanja Djokić , Jelena Kesić , Ivana Kovačević , Goran Benedeković , Bojana Srećo Zelenović , Velimir Popsavin , Vesna Kojić","doi":"10.1016/j.bmcl.2025.130218","DOIUrl":null,"url":null,"abstract":"<div><div>Several new goniofufurone (<strong>1</strong>) and 7-<em>epi</em>-goniofufurone (<strong>2</strong>) mimics in which the benzene ring has been replaced with a thiazole residue have been designed, synthesized and evaluated for their antiproliferative activity against a panel of human tumour cell lines. The key steps of the synthesis represent the initial condensation of suitably protected furanose urononitriles with cysteine ethyl ester hydrochloride, followed by the subsequent oxidation of resulting C-4′ epimeric thiazolines with BrCCl<sub>3</sub> and DBU, to build up the thiazole ring. Biological studies have shown that the HeLa cell line is most sensitive to the action of synthesized analogues with IC<sub>50</sub> values in the range of 0.01–7.67 μM. The most active compound in this cell culture was 7-<em>epi</em>-goniofufurone mimic <strong>28</strong>, with a thiazole-carboxamide function at C-7 and a benzyloxy group at the C-5 position. Compound <strong>28</strong> exhibited 89-fold higher antiproliferative potency in this cell line than lead <strong>2</strong> and was 7-fold more active than the commercial antitumour agent doxorubicin. A SAR study identified structural features responsible for the antiproliferative activity of synthesized analogues. The analogues <strong>3</strong>–<strong>28</strong> are completely inactive toward the normal MRC-5 cell line. Their selectivity indexes (SI) range from 4.1 to 17,470.7.</div></div>","PeriodicalId":256,"journal":{"name":"Bioorganic & Medicinal Chemistry Letters","volume":"123 ","pages":"Article 130218"},"PeriodicalIF":2.5000,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioorganic & Medicinal Chemistry Letters","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0960894X25001271","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MEDICINAL","Score":null,"Total":0}
引用次数: 0
Abstract
Several new goniofufurone (1) and 7-epi-goniofufurone (2) mimics in which the benzene ring has been replaced with a thiazole residue have been designed, synthesized and evaluated for their antiproliferative activity against a panel of human tumour cell lines. The key steps of the synthesis represent the initial condensation of suitably protected furanose urononitriles with cysteine ethyl ester hydrochloride, followed by the subsequent oxidation of resulting C-4′ epimeric thiazolines with BrCCl3 and DBU, to build up the thiazole ring. Biological studies have shown that the HeLa cell line is most sensitive to the action of synthesized analogues with IC50 values in the range of 0.01–7.67 μM. The most active compound in this cell culture was 7-epi-goniofufurone mimic 28, with a thiazole-carboxamide function at C-7 and a benzyloxy group at the C-5 position. Compound 28 exhibited 89-fold higher antiproliferative potency in this cell line than lead 2 and was 7-fold more active than the commercial antitumour agent doxorubicin. A SAR study identified structural features responsible for the antiproliferative activity of synthesized analogues. The analogues 3–28 are completely inactive toward the normal MRC-5 cell line. Their selectivity indexes (SI) range from 4.1 to 17,470.7.
期刊介绍:
Bioorganic & Medicinal Chemistry Letters presents preliminary experimental or theoretical research results of outstanding significance and timeliness on all aspects of science at the interface of chemistry and biology and on major advances in drug design and development. The journal publishes articles in the form of communications reporting experimental or theoretical results of special interest, and strives to provide maximum dissemination to a large, international audience.