{"title":"A new iridoid glycoside and other secondary metabolites from Sideritis dichotoma Huter and their chemotaxonomic significance","authors":"Ceren Öztürk , Carola Aumer , Jörg Heilmann , Hasan Kırmızıbekmez","doi":"10.1016/j.bse.2024.104833","DOIUrl":null,"url":null,"abstract":"<div><p>The phytochemical studies on the aerial parts of <em>Sideritis dichotoma</em> led to the isolation and identification of a new iridoid glycoside (<strong>1</strong>), along with four known iridoid glycosides (<strong>2</strong>-<strong>5</strong>), three phenylethanoid glycosides (<strong>6</strong>–<strong>8</strong>), two flavone glycosides (<strong>9</strong> and <strong>10</strong>), one neolignan (<strong>11</strong>) and a megastigmane glycoside (<strong>12</strong>). Their structures were elucidated by spectroscopic techniques. Compounds <strong>2</strong>, <strong>3</strong> and <strong>12</strong> have never been found in the <em>Sideritis</em> genus before. Furthermore, eleven compounds (<strong>1</strong>–<strong>5</strong>, <strong>7</strong>–<strong>12</strong>) were characterized for the first time from <em>S. dichotoma</em>. The chemotaxonomic importance of isolated compounds was discussed. This is the first phytochemical study on the polar constituents of <em>S. dichotoma</em>, an endemic species to Türkiye.</p></div>","PeriodicalId":8799,"journal":{"name":"Biochemical Systematics and Ecology","volume":"114 ","pages":"Article 104833"},"PeriodicalIF":1.4000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biochemical Systematics and Ecology","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0305197824000516","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
The phytochemical studies on the aerial parts of Sideritis dichotoma led to the isolation and identification of a new iridoid glycoside (1), along with four known iridoid glycosides (2-5), three phenylethanoid glycosides (6–8), two flavone glycosides (9 and 10), one neolignan (11) and a megastigmane glycoside (12). Their structures were elucidated by spectroscopic techniques. Compounds 2, 3 and 12 have never been found in the Sideritis genus before. Furthermore, eleven compounds (1–5, 7–12) were characterized for the first time from S. dichotoma. The chemotaxonomic importance of isolated compounds was discussed. This is the first phytochemical study on the polar constituents of S. dichotoma, an endemic species to Türkiye.
期刊介绍：
Biochemical Systematics and Ecology is devoted to the publication of original papers and reviews, both submitted and invited, in two subject areas: I) the application of biochemistry to problems relating to systematic biology of organisms (biochemical systematics); II) the role of biochemistry in interactions between organisms or between an organism and its environment (biochemical ecology).
In the Biochemical Systematics subject area, comparative studies of the distribution of (secondary) metabolites within a wider taxon (e.g. genus or family) are welcome. Comparative studies, encompassing multiple accessions of each of the taxa within their distribution are particularly encouraged. Welcome are also studies combining classical chemosystematic studies (such as comparative HPLC-MS or GC-MS investigations) with (macro-) molecular phylogenetic studies. Studies that involve the comparative use of compounds to help differentiate among species such as adulterants or substitutes that illustrate the applied use of chemosystematics are welcome. In contrast, studies solely employing macromolecular phylogenetic techniques (gene sequences, RAPD studies etc.) will be considered out of scope. Discouraged are manuscripts that report known or new compounds from a single source taxon without addressing a systematic hypothesis. Also considered out of scope are studies using outdated and hard to reproduce macromolecular techniques such as RAPDs in combination with standard chemosystematic techniques such as GC-FID and GC-MS.
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