Fan-Cheng Meng , Hui Liu , Xiao-Jun Huang , Yu Chang , Dai Ren , Li-Gen Lin , Qing-Qian Zeng , Qing-Wen Zhang
{"title":"头豆杉枝条中四个新的去木脂素苷异构体。","authors":"Fan-Cheng Meng , Hui Liu , Xiao-Jun Huang , Yu Chang , Dai Ren , Li-Gen Lin , Qing-Qian Zeng , Qing-Wen Zhang","doi":"10.1016/j.tetasy.2017.10.017","DOIUrl":null,"url":null,"abstract":"<div><p><span><span>Four novel isomers of norlignan </span>glycoside were isolated from </span><span><em>Cephalotaxus</em><em> oliveri</em></span> Mast.. Their structures were elucidated as 3<em>S</em>-4″-<em>O</em>-<em>β</em>-<span>d</span>-glucopyranosylnyasol <strong>1</strong>, 3<em>S</em>-4′-<em>O</em>-<em>β</em>-<span>d</span>-glucopyranosylnyasol <strong>2</strong>, 3<em>S</em>-4″-<em>O</em>-<em>β</em>-<span>d</span>-glucopyranosylhinokiresinol <strong>3</strong>, 3<em>S</em>-4′-<em>O</em>-<em>β</em>-<span>d</span>-glucopyranosylhinokiresinol <strong>4</strong><span> by extensive spectroscopic methods including 1D and 2D NMR experiments (</span><sup>1</sup>H, <sup>13</sup><span>C, DEPT, </span><sup>1</sup>H–<sup>1</sup><span><span>H COSY, HSQC, </span>HMBC<span>, ROESY) along with HR-ESIMS and comparison to literature data. Their absolute configurations were elucidated through CD spectra coupled with the quantum chemical CD calculations.</span></span></p></div>","PeriodicalId":22237,"journal":{"name":"Tetrahedron, asymmetry","volume":"28 12","pages":"Pages 1686-1689"},"PeriodicalIF":0.0000,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.tetasy.2017.10.017","citationCount":"6","resultStr":"{\"title\":\"Four new norlignan glycoside isomers from the twigs of Cephalotaxus oliveri Mast.\",\"authors\":\"Fan-Cheng Meng , Hui Liu , Xiao-Jun Huang , Yu Chang , Dai Ren , Li-Gen Lin , Qing-Qian Zeng , Qing-Wen Zhang\",\"doi\":\"10.1016/j.tetasy.2017.10.017\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span><span>Four novel isomers of norlignan </span>glycoside were isolated from </span><span><em>Cephalotaxus</em><em> oliveri</em></span> Mast.. Their structures were elucidated as 3<em>S</em>-4″-<em>O</em>-<em>β</em>-<span>d</span>-glucopyranosylnyasol <strong>1</strong>, 3<em>S</em>-4′-<em>O</em>-<em>β</em>-<span>d</span>-glucopyranosylnyasol <strong>2</strong>, 3<em>S</em>-4″-<em>O</em>-<em>β</em>-<span>d</span>-glucopyranosylhinokiresinol <strong>3</strong>, 3<em>S</em>-4′-<em>O</em>-<em>β</em>-<span>d</span>-glucopyranosylhinokiresinol <strong>4</strong><span> by extensive spectroscopic methods including 1D and 2D NMR experiments (</span><sup>1</sup>H, <sup>13</sup><span>C, DEPT, </span><sup>1</sup>H–<sup>1</sup><span><span>H COSY, HSQC, </span>HMBC<span>, ROESY) along with HR-ESIMS and comparison to literature data. Their absolute configurations were elucidated through CD spectra coupled with the quantum chemical CD calculations.</span></span></p></div>\",\"PeriodicalId\":22237,\"journal\":{\"name\":\"Tetrahedron, asymmetry\",\"volume\":\"28 12\",\"pages\":\"Pages 1686-1689\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-12-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.tetasy.2017.10.017\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Tetrahedron, asymmetry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0957416617303221\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Chemistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tetrahedron, asymmetry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0957416617303221","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Chemistry","Score":null,"Total":0}
Four new norlignan glycoside isomers from the twigs of Cephalotaxus oliveri Mast.
Four novel isomers of norlignan glycoside were isolated from Cephalotaxus oliveri Mast.. Their structures were elucidated as 3S-4″-O-β-d-glucopyranosylnyasol 1, 3S-4′-O-β-d-glucopyranosylnyasol 2, 3S-4″-O-β-d-glucopyranosylhinokiresinol 3, 3S-4′-O-β-d-glucopyranosylhinokiresinol 4 by extensive spectroscopic methods including 1D and 2D NMR experiments (1H, 13C, DEPT, 1H–1H COSY, HSQC, HMBC, ROESY) along with HR-ESIMS and comparison to literature data. Their absolute configurations were elucidated through CD spectra coupled with the quantum chemical CD calculations.
期刊介绍：
Cessation. Tetrahedron: Asymmetry presents experimental or theoretical research results of outstanding significance and timeliness on asymmetry in organic, inorganic, organometallic and physical chemistry, as well as its application to related disciplines, especially bio-organic chemistry.
The journal publishes critical reviews, original research articles and preliminary communications dealing with all aspects of the chemical, physical and theoretical properties of non-racemic organic and inorganic materials and processes. Topics relevant to the journal include: the physico-chemical and biological properties of enantiomers; strategies and methodologies of asymmetric synthesis; resolution; chirality recognition and enhancement; analytical techniques for assessing enantiomeric purity and the unambiguous determination of absolute configuration; and molecular graphics and modelling methods for interpreting and predicting asymmetric phenomena. Papers describing the synthesis or properties of non-racemic molecules will be required to include a separate statement in the form of a Stereochemistry Abstract, for publication in the same issue, of the criteria used for the assignment of configuration and enantiomeric purity.
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