A. V. Nemtarev, D. V. Ponomaryov, L. R. Idrisova, L. V. Anikina, V. K. Brel’, O. V. Tsepaeva, V. F. Mironov
{"title":"5,6-Dihydropyran derivatives of nor-lupane: synthesis and properties","authors":"A. V. Nemtarev, D. V. Ponomaryov, L. R. Idrisova, L. V. Anikina, V. K. Brel’, O. V. Tsepaeva, V. F. Mironov","doi":"10.1007/s11172-024-4347-y","DOIUrl":null,"url":null,"abstract":"<p>Using triterpenoid betulin as an example, a convenient method for the synthesis of 5,6-dihydropyran derivatives containing a <i>nor</i>-triterpenoid fragment at position 4 was proposed. The method involves the reaction of lupane triterpenoids with paraformaldehyde in dioxane in the presence of sulfuric acid. Approaches to the synthesis of triterpene derivatives of 5,6-dihydropyran-2-one and penta-2,4-dienoic acid were developed based on the obtained 4-(3,28-diacetoxy-20,29,30-tri-<i>nor</i>-lupan-19-yl)-5,6-dihydropyran. Triterpene-substituted penta-2,4-dienoic acid heated with triphenylphosphonium triflate formed a quaternary phosphonium salt, which showed cytotoxicity against human cancer cells MCF-7 (breast cancer) and HCT116 (colon cancer) with IC<sub>50</sub> 4–19 µmol L<sup>−1</sup>, with its activity against these cell lines being superior to the activity of the comparison drug camptothecin.</p>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":null,"pages":null},"PeriodicalIF":1.7000,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Chemical Bulletin","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s11172-024-4347-y","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Using triterpenoid betulin as an example, a convenient method for the synthesis of 5,6-dihydropyran derivatives containing a nor-triterpenoid fragment at position 4 was proposed. The method involves the reaction of lupane triterpenoids with paraformaldehyde in dioxane in the presence of sulfuric acid. Approaches to the synthesis of triterpene derivatives of 5,6-dihydropyran-2-one and penta-2,4-dienoic acid were developed based on the obtained 4-(3,28-diacetoxy-20,29,30-tri-nor-lupan-19-yl)-5,6-dihydropyran. Triterpene-substituted penta-2,4-dienoic acid heated with triphenylphosphonium triflate formed a quaternary phosphonium salt, which showed cytotoxicity against human cancer cells MCF-7 (breast cancer) and HCT116 (colon cancer) with IC50 4–19 µmol L−1, with its activity against these cell lines being superior to the activity of the comparison drug camptothecin.
期刊介绍:
Publishing nearly 500 original articles a year, by leading Scientists from Russia and throughout the world, Russian Chemical Bulletin is a prominent international journal. The coverage of the journal spans practically all areas of fundamental chemical research and is presented in five sections:
General and Inorganic Chemistry;
Physical Chemistry;
Organic Chemistry;
Organometallic Chemistry;
Chemistry of Natural Compounds and Bioorganic Chemistry.