Article(id=1200394150974714735, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1200394147019477416, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2024-0365, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1713110400000, receivedDateStr=2024-04-15, revisedDate=1713283200000, revisedDateStr=2024-04-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1764125867836, onlineDateStr=2025-11-26, pubDate=1720713600000, pubDateStr=2024-07-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764125867836, onlineIssueDateStr=2025-11-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764125867836, creator=13701087609, updateTime=1764125867836, updator=13701087609, issue=Issue{id=1200394147019477416, tenantId=1146029695717560320, journalId=1189982191388893191, year='2024', volume='59', issue='7', pageStart='1897', pageEnd='2182', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764125866894, creator=13701087609, updateTime=1764225115484, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200810425920115296, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1200394147019477416, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200810425920115297, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1200394147019477416, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=2077, endPage=2086, ext={EN=ArticleExt(id=1200394151855518586, articleId=1200394150974714735, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Isolation, chiral separation and absolute configuration determination of lignanoids from an aqueous extract of the Angelica sinensis root head, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=

From an aqueous extract of the Angelica sinensis root head (guitou), nine pairs of lignanoid enantiomers [(+)-/(-)-1-(+)-/(-)-9], including three pairs of new structures [(+)-/(-)-1-(+)-/(-)-3] and two pairs of chiral separated enantiomers for the first time [(+)-/(-)-4 and (+)-/(-)-5], were isolated and chirally separated by column chromatography over different types of resin, normal and reversed phase silica gels, together with HPLC techniques using reversed phase and chiral columns. Their structures were determined by spectroscopic data analysis, theoretic calculation of electronic circular dichroism (ECD) spectra, and single-crystal X-ray diffraction. The chiral separated new enantiomers named (+)-/(-)-angelignanins Q-T [(+)-/(-)-1-(+)-/(-)-4] and (+)-/(-)-daphneresinol [(+)-/(-)-5], respectively.

, correspAuthors=Qing-lan GUO, Jian-gong SHI, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2024 Acta Pharmaceutica Sinica. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Xiao-yi ZHANG, Zhao XIA, Xiao-qiang LEI, Wei-ping LI, Rong LIU, Qing-lan GUO, Jian-gong SHI), CN=ArticleExt(id=1200394156855128122, articleId=1200394150974714735, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=当归头水提取物中木脂素类对映体的分离、手性拆分和绝对构型确定, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=

通过不同型号树脂、正和反相硅胶及各种凝胶柱色谱, 结合反相和手性柱HPLC技术, 从“归头”水煎提取物中分离并手性拆分得到9对木脂素类对映体, 其中3对新结构对映体[(+)-/(-)-1~(+)-/(-)-3] 以及2对首次实现手性拆分的对映体[(+)-/(-)-4和(+)-/(-)-5]。通过波谱数据分析、电子圆二色谱(ECD) 理论计算和X-单晶衍射技术, 确定了所有对映体的绝对构型。新结构和首次拆分并确定绝对构型的对映体分别命名为(+)-/(-)-当归木脂素Q~T [(+)-/(-)-1~(+)-/(-)-4] 和(+)-/(-)-滇瑞香醇[(+)-/(-)-5]。

, correspAuthors=郭庆兰, 石建功, authorNote=null, correspAuthorsNote=
*郭庆兰, Tel: 86-10-83154789, Fax: 86-10-63017757, E-mail: ;
石建功, Tel: 86-10-63025166, Fax: 86-10-63017757, E-mail:
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Gaussian, Inc., Wallingford CT, 2016., articleTitle=null, refAbstract=null)], funds=[Fund(id=1201106977926640072, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, awardId=82293681, language=CN, fundingSource=国家自然科学基金资助项目(82293681), fundOrder=null, country=null), Fund(id=1201106978010526154, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, awardId=82293685(82293680), language=CN, fundingSource=国家自然科学基金资助项目(82293685(82293680)), fundOrder=null, country=null), Fund(id=1201106978144743884, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, awardId=2021-I2M-1-028, language=CN, fundingSource=中国医学科学院医学与健康科技创新工程资助项目(2021-I2M-1-028), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1201106969802273070, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, xref=null, ext=[AuthorCompanyExt(id=1201106969810661679, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, companyId=1201106969802273070, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. 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Gansu Provincial Laboratory of Fine Chemicals, Gansu Chemical Industry Research Institute Co., Ltd., Lanzhou 620100, China), AuthorCompanyExt(id=1201106969944879412, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, companyId=1201106969928102194, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.甘肃省化工研究院有限责任公司, 甘肃省精细化工重点实验室, 甘肃 兰州 620100)])], figs=[ArticleFig(id=1201106974701220250, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=EN, label=null, caption=null, figureFileSmall=+y2oPXV2xGCugTQzRy8Zzg==, figureFileBig=n9ECui6x7VfZ+/KkcnWMOQ==, tableContent=null), ArticleFig(id=1201106974806077852, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=CN, label=Figure 1, caption= The structures of (+)-/(-)-<strong>1</strong> - (+)-/(-)-<strong>9</strong> , figureFileSmall=+y2oPXV2xGCugTQzRy8Zzg==, figureFileBig=n9ECui6x7VfZ+/KkcnWMOQ==, tableContent=null), ArticleFig(id=1201106974915129759, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=EN, label=null, caption=null, figureFileSmall=dRSlJwMUnWnvMhkBywYTEQ==, figureFileBig=4hoQ9Fa6/P3pTJBfCLm3HA==, tableContent=null), ArticleFig(id=1201106974986432930, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=CN, label=Figure 2, caption= The <sup>1</sup>H-<sup>1</sup>H COSY (thick lines) and key HMBC (arrows) correlations of <strong>1</strong>-<strong>5</strong> , figureFileSmall=dRSlJwMUnWnvMhkBywYTEQ==, figureFileBig=4hoQ9Fa6/P3pTJBfCLm3HA==, tableContent=null), ArticleFig(id=1201106975070319012, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=EN, label=null, caption=null, figureFileSmall=YbZvx3LROqxkB+sepPxWUg==, figureFileBig=sdpSlIV/oJipgcxkaWGB6A==, tableContent=null), ArticleFig(id=1201106975166788005, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=CN, label=Figure 3, caption= (a) The overlaid experimental CD spectra (full lines) of (+)-<strong>1</strong> (red) and (-)-<strong>1</strong> (blue) and calculated ECD spectra (dash lines) of (7<i>S</i>, 7ʹ<i>S</i>)-<strong>1</strong> (red) and (7<i>R</i>, 7ʹ<i>R</i>)-<strong>1</strong> (blue). (b) The overlaid experimental UV spectra (full lines) of (+)-<strong>1</strong> (red) and (-)-<strong>1</strong> (blue) and calculated UV spectrum (dash line) of (7<i>R</i>, 7ʹ<i>R</i>)-<strong>1</strong> , figureFileSmall=YbZvx3LROqxkB+sepPxWUg==, figureFileBig=sdpSlIV/oJipgcxkaWGB6A==, tableContent=null), ArticleFig(id=1201106975271645606, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=EN, label=null, caption=null, figureFileSmall=8JMTMK2pcmdG49K8lgqXkw==, figureFileBig=MwzhTQlDowtXMhnkdOFLkA==, tableContent=null), ArticleFig(id=1201106975389086121, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=CN, label=Figure 4, caption= ORTEP diagram of the crystal structure of (-)-<strong>1</strong> , figureFileSmall=8JMTMK2pcmdG49K8lgqXkw==, figureFileBig=MwzhTQlDowtXMhnkdOFLkA==, tableContent=null), ArticleFig(id=1201106975468777900, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=EN, label=null, caption=null, figureFileSmall=z5NVrG7tcAq6AoeMlGT9Cw==, figureFileBig=63wJ+Z2cyaJrJfjYmVytiw==, tableContent=null), ArticleFig(id=1201106975552663982, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=CN, label=Figure 5, caption= The key NOESY correlations (pink double arrows) of compounds <strong>2</strong> and <strong>3</strong> , figureFileSmall=z5NVrG7tcAq6AoeMlGT9Cw==, figureFileBig=63wJ+Z2cyaJrJfjYmVytiw==, tableContent=null), ArticleFig(id=1201106975649132977, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=EN, label=null, caption=null, figureFileSmall=kcQZTflUpkmAUHDpPsZwOQ==, figureFileBig=MFgDbjo9ITYz3aZACsYvvA==, tableContent=null), ArticleFig(id=1201106975724630452, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=CN, label=Figure 6, caption= (a) The overlaid experimental CD spectra (full lines) of (+)-<strong>2</strong> (red) and (-)-<strong>2</strong> (blue) and calculated ECD spectra (dash lines) of (7<i>R</i>, 7ʹ<i>S</i>, 8<i>S</i>, 8ʹ<i>R</i>)-<strong>2</strong> (red) and (7<i>S</i>, 7ʹ<i>R</i>, 8<i>R</i>, 8ʹ<i>S</i>)-<strong>2</strong> (blue). (b) The overlaid experimental UV spectra (full lines) of (+)-<strong>2</strong> (red) and (-)-<strong>2</strong> (blue) and calculated UV spectrum (dash line) of (7<i>S</i>, 7ʹ<i>R</i>, 8<i>R</i>, 8ʹ<i>S</i>)-<strong>2</strong> (blue). (Blue-shifted by 9 nm) , figureFileSmall=kcQZTflUpkmAUHDpPsZwOQ==, figureFileBig=MFgDbjo9ITYz3aZACsYvvA==, tableContent=null), ArticleFig(id=1201106975821099447, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=EN, label=null, caption=null, figureFileSmall=9sDIK/0YpmQJHLHr9c5y5Q==, figureFileBig=1Rlzw/OBfEIXAmKz83ssnw==, tableContent=null), ArticleFig(id=1201106975934345658, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=CN, label=Figure 7, caption= (a) The overlaid experimental CD spectra (full lines) of (+)-<strong>3</strong> (red) and (-)-<strong>3</strong> (blue) and calculated ECD spectra (dash lines) of (7<i>R</i>, 7ʹ<i>R</i>, 8<i>S</i>, 8ʹ<i>S</i>)-<strong>3</strong> (red) and (7<i>S</i>, 7ʹ<i>S</i>, 8<i>R</i>, 8ʹ<i>R</i>)-<strong>3</strong> (blue). (b) The overlaid experimental UV spectra (full lines) of (+)-<strong>3</strong> (red) and (-)-<strong>3</strong> (blue) and calculated UV spectrum (dash line) of (7<i>S</i>, 7ʹ<i>S</i>, 8<i>R</i>, 8ʹ<i>R</i>)-<strong>3</strong> (red-shifted by 3.5 nm) , figureFileSmall=9sDIK/0YpmQJHLHr9c5y5Q==, figureFileBig=1Rlzw/OBfEIXAmKz83ssnw==, tableContent=null), ArticleFig(id=1201106976026620348, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=EN, label=null, caption=null, figureFileSmall=gJnA/OvaNec3mgd0cuiJPw==, figureFileBig=uCt9uHoaOd/fcHHSi5Vo8Q==, tableContent=null), ArticleFig(id=1201106976211169727, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=CN, label=Figure 8, caption= (a) The overlaid experimental CD spectra (full lines) of (+)-<strong>4</strong> (red) and (-)-<strong>4</strong> (blue) and calculated ECD spectra (dash lines) of (7ʹ<i>E</i>, 7<i>S</i>, 8<i>S</i>)-<strong>4</strong> (red) and (7ʹ<i>E</i>, 7<i>R</i>, 8<i>R</i>)-<strong>4</strong> (blue). (b) The overlaid experimental UV spectra (full lines) of (+)-<strong>4</strong> (red) and (-)-<strong>4</strong> (blue) and calculated UV spectrum (dash line) of (7ʹ<i>E</i>, 7<i>S</i>, 8<i>S</i>)-<strong>4</strong> , figureFileSmall=gJnA/OvaNec3mgd0cuiJPw==, figureFileBig=uCt9uHoaOd/fcHHSi5Vo8Q==, tableContent=null), ArticleFig(id=1201106976286667201, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=EN, label=null, caption=null, figureFileSmall=ZscElfkGiYk+1nf3zn4ROA==, figureFileBig=thMF1keeZjtWBtYcEDgf3g==, tableContent=null), ArticleFig(id=1201106977465266628, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=CN, label=Figure 9, caption= (a) The overlaid experimental CD spectra (full lines) of (+)-<strong>5</strong> (red) and (-)-<strong>5</strong> (blue) and calculated ECD spectra (dash lines) of (8ʹ<i>R</i>)-<strong>5</strong> (red) and (8ʹ<i>S</i>)-<strong>5</strong> (blue). (b) The overlaid experimental UV spectra (full lines) of (+)-<strong>5</strong> (red) and (-)-<strong>5</strong> (blue) and calculated UV spectrum (dash line) of (8ʹ<i>R</i>)-<strong>5</strong> (blue-shifted by 5.5 nm) , figureFileSmall=ZscElfkGiYk+1nf3zn4ROA==, figureFileBig=thMF1keeZjtWBtYcEDgf3g==, tableContent=null), ArticleFig(id=1201106977599484358, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
No12345
δHδCδHδCδHδCδHδCδHδC
1135.6134.5133.8133.76.83 dd (7.8, 2.4)121.7
26.94 d (9.0)129.26.70 d (2.0)112.76.89 d (1.8)110.47.02 d (1.8)111.7137.2
36.59 d (9.0)115.4148.8149.0148.86.94 d (2.4)113.0
4157.5146.0147.0147.2149.0
56.59 d (9.0)115.46.67 d (8.5)116.06.75 d (8.4)116.06.75 d (8.4)115.8145.8
66.94 d (9.0)129.26.63 d (8.5, 2.0)121.36.78 dd (8.4, 1.8)119.66.86 dd (8.4, 1.8)120.76.71 d (7.8)116.3
74.78 d (8.5)78.32.87 dd (5.0, 2.5)61.54.72 d (4.8)88.54.88 m73.93.71 t (6.0)63.6
84.34 m77.24.13 ddd (6.6, 6.6, 4.8)78.84.45 td (6.6, 3.6)86.31.95 m43.9
9a3.76 dd (12.0, 3.6)62.03.70 dd (11.4, 4.8)59.7
9b3.51 dd (12.0, 6.6)3.61 dd (11.4, 4.8)
132.7134.5134.3129.9137.8
6.47 d (2.0)114.06.70 d (2.0)112.77.03 d (1.8)111.27.22 d (1.8)112.26.94 d (2.4)112.9
148.3148.8148.9151.8148.8
145.9146.0146.9151.7145.7
6.59 d (9.0)115.76.67 d (8.5)116.06.78 d (7.8)115.97.05 d (8.4)117.66.69 d (7.8)116.1
6.48 dd (9.0, 2.0)122.46.63 d (8.5, 2.0)121.36.85 dd (7.8, 1.8)120.37.10 dd (8.4, 1.8)123.46.83 dd (7.8, 2.4)121.3
2.99 ddd (8.5, 6.5, 6.0)56.32.87 dd (5.0, 2.5)61.54.82 d (3.6)75.97.58 d (15.6)145.83.98 d (12.0)52.1
8ʹa4.09 dd (11.0, 6.0)65.84.34 m77.24.45 ddd (7.8, 6.6, 3.6)83.96.37 d (15.6)118.02.64 m45.0
8ʹb3.90 dd (11.0, 6.5)
9ʹa2.14 t (7.0)43.92.08 ddd (13.2, 7.8, 6.6)34.6175.83.54 dd (11.4, 2.4)60.1
9ʹb2.14 t (7.0)2.04 dt (13.2, 6.6)3.38 dd (11.4, 6.0)
3-OCH33.77 s56.33.84 s56.43.82 s56.33.84 s56.5
3ʹ-OCH33.69 s56.23.77 s56.33.86 s56.43.90 s56.63.83 s56.4
), ArticleFig(id=1201106977716924872, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1200394150974714735, language=CN, label=Table 1, caption=

NMR spectroscopic data of compounds 1-5. Data (δ) were measured in methanol-d4 (references: δHCD2OD = 3.310 for 1H and δCD3OD = 49.000 for 13C) for 1 and 2 at 500 MHz for 1H and 125 MHz for 13C, respectively, and for 3-5 at 600 MHz for 1H and 150 MHz for 13C. Proton coupling constants (J) in Hz are given in parentheses. The assignments were based on 1H-1H COSY, HSQC, and HMBC experiments

, figureFileSmall=null, figureFileBig=null, tableContent=
No12345
δHδCδHδCδHδCδHδCδHδC
1135.6134.5133.8133.76.83 dd (7.8, 2.4)121.7
26.94 d (9.0)129.26.70 d (2.0)112.76.89 d (1.8)110.47.02 d (1.8)111.7137.2
36.59 d (9.0)115.4148.8149.0148.86.94 d (2.4)113.0
4157.5146.0147.0147.2149.0
56.59 d (9.0)115.46.67 d (8.5)116.06.75 d (8.4)116.06.75 d (8.4)115.8145.8
66.94 d (9.0)129.26.63 d (8.5, 2.0)121.36.78 dd (8.4, 1.8)119.66.86 dd (8.4, 1.8)120.76.71 d (7.8)116.3
74.78 d (8.5)78.32.87 dd (5.0, 2.5)61.54.72 d (4.8)88.54.88 m73.93.71 t (6.0)63.6
84.34 m77.24.13 ddd (6.6, 6.6, 4.8)78.84.45 td (6.6, 3.6)86.31.95 m43.9
9a3.76 dd (12.0, 3.6)62.03.70 dd (11.4, 4.8)59.7
9b3.51 dd (12.0, 6.6)3.61 dd (11.4, 4.8)
132.7134.5134.3129.9137.8
6.47 d (2.0)114.06.70 d (2.0)112.77.03 d (1.8)111.27.22 d (1.8)112.26.94 d (2.4)112.9
148.3148.8148.9151.8148.8
145.9146.0146.9151.7145.7
6.59 d (9.0)115.76.67 d (8.5)116.06.78 d (7.8)115.97.05 d (8.4)117.66.69 d (7.8)116.1
6.48 dd (9.0, 2.0)122.46.63 d (8.5, 2.0)121.36.85 dd (7.8, 1.8)120.37.10 dd (8.4, 1.8)123.46.83 dd (7.8, 2.4)121.3
2.99 ddd (8.5, 6.5, 6.0)56.32.87 dd (5.0, 2.5)61.54.82 d (3.6)75.97.58 d (15.6)145.83.98 d (12.0)52.1
8ʹa4.09 dd (11.0, 6.0)65.84.34 m77.24.45 ddd (7.8, 6.6, 3.6)83.96.37 d (15.6)118.02.64 m45.0
8ʹb3.90 dd (11.0, 6.5)
9ʹa2.14 t (7.0)43.92.08 ddd (13.2, 7.8, 6.6)34.6175.83.54 dd (11.4, 2.4)60.1
9ʹb2.14 t (7.0)2.04 dt (13.2, 6.6)3.38 dd (11.4, 6.0)
3-OCH33.77 s56.33.84 s56.43.82 s56.33.84 s56.5
3ʹ-OCH33.69 s56.23.77 s56.33.86 s56.43.90 s56.63.83 s56.4
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当归头水提取物中木脂素类对映体的分离、手性拆分和绝对构型确定
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张潇逸 1 , 夏召 1 , 雷小强 1 , 李卫平 2 , 刘荣 2 , 郭庆兰 1, * , 石建功 1, *
药学学报 | 研究论文 2024,59(7): 2077-2086
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药学学报 | 研究论文 2024, 59(7): 2077-2086
当归头水提取物中木脂素类对映体的分离、手性拆分和绝对构型确定
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张潇逸1, 夏召1, 雷小强1, 李卫平2, 刘荣2, 郭庆兰1, * , 石建功1, *
作者信息
  • 1.中国医学科学院、北京协和医学院药物研究所, 天然药物活性物质与功能国家重点实验室, 北京 100050
  • 2.甘肃省化工研究院有限责任公司, 甘肃省精细化工重点实验室, 甘肃 兰州 620100

通讯作者:

*郭庆兰, Tel: 86-10-83154789, Fax: 86-10-63017757, E-mail: ;
石建功, Tel: 86-10-63025166, Fax: 86-10-63017757, E-mail:
Isolation, chiral separation and absolute configuration determination of lignanoids from an aqueous extract of the Angelica sinensis root head
Xiao-yi ZHANG1, Zhao XIA1, Xiao-qiang LEI1, Wei-ping LI2, Rong LIU2, Qing-lan GUO1, * , Jian-gong SHI1, *
Affiliations
  • 1. Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
  • 2. Gansu Provincial Laboratory of Fine Chemicals, Gansu Chemical Industry Research Institute Co., Ltd., Lanzhou 620100, China
出版时间: 2024-07-12 doi: 10.16438/j.0513-4870.2024-0365
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通过不同型号树脂、正和反相硅胶及各种凝胶柱色谱, 结合反相和手性柱HPLC技术, 从“归头”水煎提取物中分离并手性拆分得到9对木脂素类对映体, 其中3对新结构对映体[(+)-/(-)-1~(+)-/(-)-3] 以及2对首次实现手性拆分的对映体[(+)-/(-)-4和(+)-/(-)-5]。通过波谱数据分析、电子圆二色谱(ECD) 理论计算和X-单晶衍射技术, 确定了所有对映体的绝对构型。新结构和首次拆分并确定绝对构型的对映体分别命名为(+)-/(-)-当归木脂素Q~T [(+)-/(-)-1~(+)-/(-)-4] 和(+)-/(-)-滇瑞香醇[(+)-/(-)-5]。

伞形科  /  当归属  /  归头  /  水提取物  /  木脂素  /  (+)-/(-)-当归木脂素Q~T

From an aqueous extract of the Angelica sinensis root head (guitou), nine pairs of lignanoid enantiomers [(+)-/(-)-1-(+)-/(-)-9], including three pairs of new structures [(+)-/(-)-1-(+)-/(-)-3] and two pairs of chiral separated enantiomers for the first time [(+)-/(-)-4 and (+)-/(-)-5], were isolated and chirally separated by column chromatography over different types of resin, normal and reversed phase silica gels, together with HPLC techniques using reversed phase and chiral columns. Their structures were determined by spectroscopic data analysis, theoretic calculation of electronic circular dichroism (ECD) spectra, and single-crystal X-ray diffraction. The chiral separated new enantiomers named (+)-/(-)-angelignanins Q-T [(+)-/(-)-1-(+)-/(-)-4] and (+)-/(-)-daphneresinol [(+)-/(-)-5], respectively.

Umbelliferae  /  Angelica  /  Angelica sinensis root head  /  aqueous extract  /  lignanoid  /  (+)-/(-)-angelignanins Q-T
张潇逸, 夏召, 雷小强, 李卫平, 刘荣, 郭庆兰, 石建功. 当归头水提取物中木脂素类对映体的分离、手性拆分和绝对构型确定. 药学学报, 2024 , 59 (7) : 2077 -2086 . DOI: 10.16438/j.0513-4870.2024-0365
Xiao-yi ZHANG, Zhao XIA, Xiao-qiang LEI, Wei-ping LI, Rong LIU, Qing-lan GUO, Jian-gong SHI. Isolation, chiral separation and absolute configuration determination of lignanoids from an aqueous extract of the Angelica sinensis root head[J]. Acta Pharmaceutica Sinica, 2024 , 59 (7) : 2077 -2086 . DOI: 10.16438/j.0513-4870.2024-0365
伞形科(Umbelliferae) 当归属植物当归Angelica sinensis (Oliv.) Diels是具有补血活血、调经止痛、润肠通便等功效的常用中药当归的基原植物, 主产甘肃, 是当地的重要经济作物。由于当归以干燥根入药, 且不同部位的传统功效和商业价值不同, 因此通常分为“全归”、“归头”、“归身”和“归尾”分别市售和入药[1]。当归根的整体称“全归”, 是滋补药材, 与肉类煮汤食用, 在欧洲和北美用作食品添加剂[2, 3]。药理学和化学研究显示, 当归提取物以及其主要化学成分藁本内酯、阿魏酸和多糖等具有抗炎、抗痉挛、抗氧化、抗纤维化、神经保护以及防治心脑血管疾病等多种多样的功效[1-3]; 同时, 从当归提取物中已分离鉴定了酞、苯丙素、木脂素、香豆素、多烯炔、萜、甾体、生物碱、脂肪酸及多糖等结构类型的近200个化学成分[2-10], 并发现这些成分的含量因炮制和提取方法变化明显[3-5]。尽管已有大量研究, 然而相关研究主要集中在“全归”而很少关注“归头”等不同药用部位, 且以乙醇或甲醇提取物为主, 这与当归以不同部位分类入药及以水煎煮为主的用药方式不完全相符[5-13]。因此, 作为对若干常用中药材化学成分及其药理活性多样性系统研究的内容之一[14-26], 作者课题组开展了“归头”水提取物的研究, 并主要聚焦微量成分的分离和结构鉴定, 为较全面地揭示“归头”中的化学成分及其后续药理活性的深入研究奠定基础。前文[27-31]已报道了包含26对对映体在内的新骨架酞和新骨架木脂素等68个新结构化合物或新天然产物, 25个已知化合物, 以及部分化合物的初步药理活性筛选结果。本文报道同一提取物中的9对木脂素类对映体[(+)-/(-)-1~(+)-/(-)-9] (图 1) 的分离、手性拆分和绝对构型确定。其中, 3对为新结构对映体[(+)-/(-)-1~(+)-/(-)-3], 2对为首次实现手性拆分和绝对构型确定的对映体[(+)-/(-)-4和(+)-/(-)-5]。
非等量消旋体1为白色无定形粉末。根据(+)-HR-ESI-MS m/z 313.104 3 [M+Na]+ (C16H18O5Na, 计算值313.104 6) 和NMR谱数据(表 1), 确定其分子组成为C16H18O5。在CD3OD中, 11H NMR数据显示结构中存在1个4-羟基苯基[δH 6.94 (2H, d, J = 9.0 Hz, H-2和H-6), 6.59 (2H, d, J = 9.0 Hz, H-3和H-5)]、1个3′-甲氧基-4′-羟基苯基[δH 6.59 (1H, d, J = 9.0 Hz, H-5ʹ), 6.48 (1H, dd, J = 9.0, 2.0 Hz, H-6ʹ), 6.47 (1H, d, J = 2.0 Hz, H-2ʹ), 3.69 (3H, s, 3-OCH3)] 和1个二取代的丙二醇单元[δH 4.78 (1H, d, J = 8.5 Hz, H-7), 2.99 (1H, ddd, J = 8.5, 6.5, 6.0 Hz, H-7ʹ), 4.09 (1H, dd, J = 11.0, 6.0 Hz, H-8ʹa), 3.90 (1H, dd, J = 11.0, 6.5 Hz, H-8ʹb)]。非等量消旋体113C NMR谱显示与以上结构单元完全对应的16个碳信号(表 1)。以上波谱数据, 推断1是一个含有4-羟基苯基和3′-甲氧基-4′-羟基苯基的降三碳新木脂素, 并通过2D NMR谱图(图 2) 解析对其结构进行了进一步确定。借助1H-1H COSY和HSQC谱解析, 不但对1的NMR数据进行了准确归属, 而且确证了前述推断的结构单元。在HMBC谱中, H-2/6与C-7, H-7与C-1、C-2、C-6、C-8′和C-1ʹ, H-7′与C-1、C-1ʹ、C-2ʹ和C-6ʹ, H2-8′与C-1ʹ和C-7, 以及H-2ʹ/6ʹ与C-7′的异核远程相关信号, 证明1的平面结构为3ʹ-甲氧基-4, 4ʹ, 7, 8′-四羟基-8, 9, 9ʹ-三降-7, 7ʹ-新木脂素。根据偶合常数J7, 7′ (8.5 Hz), 推定在1的纽曼投影式优势构象中, H-7与H-7ʹ处于对位交叉的anti-取向[32]
非等量消旋体1经半制备HPLC拆分(CD-Ph手性色谱柱, 2.0 mL·min-1, 流动相为15%乙腈-水), 得到旋光值符号相反、CD谱曲线呈镜像关系、积分面积比约为1∶3的对映异构体(+)-1 {[α]$ {}_{\mathrm{D}}^{20} $ +8.0 (c 0.06, MeOH)} 和(-)-1 {[α]$ {}_{\mathrm{D}}^{20} $ -8.3 (c 0.10, MeOH)}。对映异构体(+)-1和(-)-1的实测CD曲线, 分别与7S, 7ʹS和7R, 7ʹR构型的计算ECD谱线吻合(图 3)。非等量消旋体1的甲醇溶液放置后, 得到(-)-1适宜于X-射线衍射分析的晶体, 用Cu Kα散场单晶X-射线衍射分析确证其绝对构型为7R, 7ʹR, Flack parameter-0.02(9), ORTEP晶体结构见图 4。因此, 化合物(+)-1和(-)-1的结构分别确定为(+)-(7S, 7ʹS)-和(-)-(7R, 7ʹR)-3ʹ-甲氧基-4, 4ʹ, 7, 8′-四羟基-8, 9, 9ʹ-三降-7, 7ʹ-新木脂素, 接续前期有关同类型成分的命名[30], 取俗名为(+)-和(-)-当归木脂素Q [(+)-/(-)-angelignanin Q]。需要指出, 尽管化合物(+)-1和(-)-1的平面结构与文献[33]报道的苏式-2-(4-羟基-3-甲氧基苯基)-1-(4-羟基苯基)-1, 3-丙二醇[threo-2-(4-hydroxy-3-methoxyphenyl)-1-(4-hydroxyphenyl)-propan-1, 3-diol] 相同, 但是与文献[33]报道化合物在相同溶剂(CD3OD) 中的NMR数据差别明显, 二者的化学位移差值ΔδH多数大于±0.10 ppm, 部分接近或大于±0.20 ppm; 同时, C-7的化学位移差值ΔδC达到2.7 ppm。因此, 认为化合物(+)-1和(-)-1的结构或相对构型与文献[33]报道的化合物不同。
外消旋体2为白色无定形粉末, 红外光谱给出羟基(3 357 cm-1) 和苯环(1 605和1 524 cm-1) 的特征吸收峰。根据(+)-HR-ESI-MS m/z 369.130 3 [M+Na]+ (C19H22O6Na, 计算值369.130 9) 和NMR谱数据(表 1) 确定其分子式为C19H22O6, 不饱和度为9, 且为对称结构。外消旋体2的NMR谱数据与前期从同一提取物中分离得到的angelignanine F[30]相似, 最显著的不同是2的2个重叠的sp3杂化次甲基[δH 2.87 (2H, dd, J = 5.0, 2.5 Hz, H-7/7ʹ), δC 61.5 (C-7/7ʹ)] 和1个连氧次甲基[δH 4.34 (m, H-8), δC 77.2 (C-8)], 分别取代了angelignanine F的1个四取代双键和1个酮羰基。由此推断化合物2是angelignanine F的8-位羰基还原为羟基的7, 7ʹ-二氢衍生物, 并得到2D NMR谱解析的确证(图 2)。尤其是, 在21H-1H COSY谱中H-7/H-8/H2-9ʹ (H-7ʹ/H-8ʹ/H2-9ʹ) 的交叉峰信号, 及HMBC谱中, H-2/6与C-4和C-7 (H-2ʹ/6ʹ与C-4ʹ和C-7ʹ), H-7与C-1、C-2/6和C-8ʹ (H-7ʹ与C-1ʹ、C-2ʹ/6ʹ和C-8), H-8与C-1、C-7ʹ和C-8ʹ (H-8ʹ与C-1ʹ、C-7和C-8), 以及H2-9ʹ与C-7/7ʹ和C-8/8ʹ的异核远程相关信号, 结合它们的化学位移, 确证2的平面结构为3, 3ʹ-二甲氧基-4, 4ʹ, 8, 8ʹ-四羟基-9-降-7, 7ʹ-环- 8, 9ʹ-新木脂素。在2的NOESY谱中, H-2和H-6与H-8 (H-2ʹ和H-6ʹ与H-8ʹ) 的NOE交叉峰, 以及照射H-8/8ʹ时NOE差谱中H-2和H-6 (H-2ʹ和H-6ʹ) 的增益, 说明在五元环上羟基和取代苯基的取向相反(图 5)。通过半制备HPLC拆分(Chiralpak IG手性色谱柱, 2.0 mL·min-1, 流动相为正己烷-乙醇7∶3), 得到峰面积接近、比旋光值符号相反、CD谱曲线呈镜像关系的对映体(+)-2 {[α]$ {}_{\mathrm{D}}^{20} $ +8.6 (c 0.07, MeOH)} 和(-)-2 {[α]$ {}_{\mathrm{D}}^{20} $ -8.6 (c 0.07, MeOH)}。对映体(+)-2和(-)-2的实测CD谱曲线分别与预设为7R, 7′S, 8S, 8′R和7S, 7′R, 8R, 8′S的计算ECD谱曲线一致(图 6)。因此, (+)-2和(-)-2的结构得以确定, 分别命名为(+)-和(-)-当归木脂素R [(+)-/(-)-angelignanin R]。根据IUPAC关于新木脂素的系统命名建议[34], 分别命名为(+)-(7R, 7′S, 8S, 8′R)-和(-)-(7S, 7′R, 8R, 8′S)-3, 3ʹ-二甲氧基-4, 4ʹ, 8, 8ʹ-四羟基-9-降-7, 7ʹ-环-8, 9ʹ-新木脂素。
外消旋体3为白色无定形粉末, 红外光谱显示其结构中存在羟基(3 352 cm-1) 和苯环(1 605和1 518 cm-1)。通过(+)-HR-ESI-MS m/z 385.124 8 [M+Na]+ (C19H22O7Na计算值385.125 8) 和NMR谱数据(表 1) 分析, 确定其分子组成为C19H22O7, 不饱和度为9。在甲醇-d4中, 31H NMR谱显示的共振信号可归属于2个三取代苯环、4个sp3杂化的连氧次甲基、1个sp3杂化的亚甲基和2个与苯环相连的甲氧基; 其13C NMR和DEPT谱给出与上述基团完全对应的碳信号(表 1)。以上波谱数据与同时分离得到的已知化合物ferulasinkin C (7)[35]的相似, 比较二者的NMR谱数据, 发现3的H-7ʹ、H-8ʹ、H-9ʹa、H-9ʹb分别去屏蔽位移ΔδH +0.14、+0.06、+0.04、+0.32, 而C-7ʹ和C-9ʹ分别屏蔽位移ΔδC -2.2和-2.9。由此推测37的7ʹ-差向异构体, 并通过2D NMR谱测定和解析(图 2), 对3的结构进行了进一步确证。尤其是在ROESY谱(图 5) 中, H-2与H-8和H-8ʹ的NOE相关信号, 证明37的呋喃环单元具有相同的相对构型。外消旋体3经HPLC (Chiralpak AD-H手性色谱柱, 正己烷-乙醇2∶1) 拆分, 获得色谱峰面积比为1∶1、CD曲线呈镜像关系的对映体(+)-3 {[α]$ {}_{\mathrm{D}}^{20} $ +6.0 (c 0.05, MeOH)} 和(-)-3 {[α]$ {}_{\mathrm{D}}^{20} $ -6.0 (c 0.05, MeOH)}。对映体(+)-3和(-)-3的CD谱分别与设定构型为7R, 7′R, 8S, 8′S和7S, 7′S, 8R, 8′R的计算ECD谱一致(图 7)。因此, (+)-3和(-)-3的结构得到确定, 分别命名为(+)-和(-)-当归木脂素S [(+)-/(-)-angelignanin S], 系统命名为(+)-(7R, 7′R, 8S, 8′S)-和(-)-(7S, 7′S, 8R, 8′R)-3, 3′-二甲氧基-4, 4ʹ, 7ʹ, 8-四羟基-9-降-7, 8′-环氧-8, 9ʹ-新木脂烷。值得指出, 根据IUPAC推荐命名规则[34], ferulasinkin C (7) 应为9-降-7, 8ʹ-环氧-8, 9ʹ-新木脂素, 而非文献[35]报道结构显示的9ʹ-降-7ʹ, 8-环氧-8ʹ, 9-新木脂素。
外消旋体4为黄色树脂状物, 其波谱数据(UV、IR、NMR) 与同一提取物中分离得到的当归木脂素O[30]的非常相似, 且(+)-HR-ESI-MS给出完全相同的分子组成。由此, 推断它们是立体异构体, 经4的2D NMR谱测定和解析确证其与当归木脂素O具有完全相同的平面结构(图 2)。与当归木脂素O[30]的NMR谱数据比较, 4的H-7和C-8的共振信号分别去屏蔽位移ΔδH +0.04和ΔδC +0.9, 而H-8、H-9a和H-9b以及C-7和C-9的共振信号分别屏蔽位移ΔδH -0.05、-0.10和-0.31以及ΔδC -0.1和-0.3, 由此推测4是当归木脂素O的苏式相对构型, 并得到ΔδC8-C7 (12.4 ppm)[32, 36]的确证。外消旋体4通过半制备HPLC (Chiralpak AD-H手性色谱柱, 2.0 mL·min-1, 流动相为正己烷-乙醇2∶1) 拆分, 得到(+)-4 {[α]$ {}_{\mathrm{D}}^{20} $ +46.3 (c 0.10, MeOH)} 和(-)-4 {[α]$ {}_{\mathrm{D}}^{20} $ -48.1 (c 0.14, MeOH)}, 它们的1H NMR数据均与4相同, 旋光值符号相反, 且CD谱中的曲线呈镜像关系, 确证(+)-4和(-)-4是对映异构体。对映体(+)-4和(-)-4的CD谱在230 ± 2 nm附近分别出现正和负的Cotton效应[31, 32], 结合它们的苏式相对构型, 推定(+)-4和(-)-4的绝对构型分别为7S, 8S和7R, 8R。以上结论进一步得到计算ECD与实测CD谱一致性(图 8) 的支持。因此, (+)-4和(-)-4的结构得以确定, 分别命名为(+)-和(-)-当归木脂素T [(+)-/(-)-angelignanines T], 系统命名为(+)-(7′E, 7S, 8S)-和(-)-(7′E, 7R, 8R)-3, 3′-二甲氧基-4, 7, 9-三羟基-8, 4′-氧新木脂-7′-烯-9′-酸。
外消旋体5为白色无定形粉末; 红外光谱显示其分子结构中存在羟基(3 303 cm-1) 和苯环(1 601和1 515 cm-1)。根据(+)-HR-ESI-MS m/z 401.157 0 [M+Na]+ (C20H26O7Na, 计算值401.157 1) 和NMR谱数据(表 1), 确定其分子组成为C20H26O7。在甲醇-d4中, 5的NMR谱数据与文献[37]报道daphneresinol的一致, 化学位移差值: ΔδH ≤ ±0.03, ΔδC ≤ ±1.0。并通过2D NMR谱测定和解析得以确证(图 2)。尽管文献[37]报道daphneresinol具有左旋光特性{[α]$ {}_{\mathrm{D}}^{20} $ -26 (c 0.11, MeOH)}, 但未确定绝对构型。然而5的比旋光值接近零, 通过手性拆分(半制备HPLC, Chiralpak IG手性色谱柱, 2.0 mL·min-1, 流动相为正己烷-乙醇7∶3), 得到对映体(+)-5 {[α]$ {}_{\mathrm{D}}^{20} $ = +14.6 (c 0.13, MeOH)} 和(-)-5 {[α]$ {}_{\mathrm{D}}^{20} $ = -16.4 (c 0.13, MeOH)}, 二者的CD谱曲线呈镜像关系, 分别与预设8ʹR和8ʹS构型的计算ECD谱一致(图 9)。因此, (+)-5和(-)-5的结构得到确定, 并根据文献[37]中最初结构daphneresinol的植物来源, 分别命名为(+)-/(-)-滇瑞香醇[(+)-/(-)-daphneresinol], 系统命名为(+)-(8′R)-和(-)-(8′S)-3ʹ, 4-二甲氧基-4′, 5, 7, 9, 9′-五羟基-1, 7-裂环-2, 7′-环木脂素[(+)-(8′R)-和(-)-(8′S)-3ʹ, 4-dimethoxy-4′, 5, 7, 9, 9′-pentahydroxy-1, 7-seco-2, 7′-cycloneolign]。
通过[α]$ {}_{\mathrm{D}}^{20} $、HR-ESI-MS、1D和2D NMR谱数据分析, 并与文献报道化合物的数据比较, 结合实测CD与计算ECD比较的方法, 确证其他4对已知对映体分别为(+)-/(-)-ferulasinkin A[35] [(+)-/(-)-6]、(+)-/(-)-ferulasinkin C[35] [(+)-/(-)-7]、(+)-/(-)-(7S, 7ʹS, 8R)-/(7R, 7ʹR, 8S)-2, 3-diguaiacyl-4-hydroxyl tetrahydrofuran[38] [(+)-/(-)-8] 及(+)-/(-)-xanthiifructin C[39] [(+)-/(-)-9]。由于(+)-/(-)-8在文献[38]中显示的分子结构及其绝对构型标识的原子编号, 与化合物名称不一致, 容易引起误解和混淆, 因此根据IUPAC的相关命名规则[34], 建议该对映体的名称修改为系统命名(+)-/(-)-(7S, 7ʹS, 8ʹR)-/(7R, 7ʹR, 8ʹS)-3, 3ʹ-二甲氧基-4, 4ʹ, 8ʹ-三羟基-8, 9-二降-7, 9ʹ-环氧-7, 7ʹ-新木脂素。
总之, 在前期研究[27-31]基础上, 作者从“归头”水提取物中进一步分离和手性拆分得到并鉴定了9对木脂素类对映体。其中, (+)-/(-)-1是一对非等量的消旋体, 结合前期发现的类似情况[30], 说明植物当归在合成、代谢和/或利用(+)-/(-)-1等非等量消旋体的过程中, 存在部分立体选择性; 对映体(+)-/(-)-2的母体骨架结构是目前仅从“归头”水提取物中发现的9-降-7, 7ʹ-环-8, 9ʹ-新木脂素, 证明“归头”中存在未曾发现且结构类型特殊的微量木脂素类成分。尽管这些发现增添了当归及同属植物化学成分的结构多样性, 但是非常遗憾, 由于它们均为微量成分、得量少, 因此未能进行活性筛选。这也为阐明这些微量成分的药理学作用和生物学功能等提出了新的问题和挑战, 值得通过继续分离累积样品或通过化学和生物合成解决样品供给后, 进一步深入探究。
AUTOPOL V型旋光测定仪(美国Rudolph公司), Thermo Nicolet IS50 FT-IR显微镜光谱仪、Q Exactive Focus型质谱仪(美国Thermo Fisher Scientific公司), JASCO V-650型紫外光谱仪、JASCO J-815型CD测定仪(日本JASCO公司), Bruker 500或700型核磁共振仪(德国Bruker公司), SYS-600型核磁共振仪(美国Varian公司), Angilent 1100型高效液相色谱仪(美国Angilent公司)。Sephadex LH-20 (瑞典Amersham Pharmacia公司), Toyopearl HW-40C和HW-40S凝胶树脂(日本TOSOH公司), HP-20型大孔吸附树脂和CHP 20P型MCI树脂(日本Mitsubishi Chemical公司), C18 MB300-40/75反相硅胶(日本富士硅化学有限公司), MGII C18、PFP C18和AQ C18半制备色谱柱以及CD-Ph手性半制备色谱柱(日本大曹株式会社), AD-H和IG手性半制备色谱柱(日本大赛璐公司), 柱色谱硅胶(200~300目) 及薄层色谱用硅胶GF254 (青岛海洋化工厂生产)。所有试剂若无特别说明, 均购自北京化工厂, 级别为分析纯或色谱纯。
当归头于2016年10月购自甘肃省漳县, 由中国医学科学院药物研究所马林副研究员鉴定为当归Angelica sinensis (Oliv.) Diels头, 生药样本保存于中国医学科学院药物研究所药用植物标本室(标本号: ID-S-2751)。
提取和初步分离过程见前文[31]。B2-10 (1.18 g) 经Toyopearl HW-40C凝胶柱色谱分离, 以50%甲醇为溶剂洗脱, 得到B2-10-1~B2-10-7。其中, B2-10-2 (57.6 mg) 经Sephadex LH-20凝胶柱色谱分离(流动相H2O) 得到B2-10-2-1~B2-10-2-4。B2-10-2-2 (21.7 mg) 经Toyopearl HW-40S凝胶柱色谱分离(流动相H2O) 得到B2-10-2-2-1~B2-10-2-2-4和消旋体4 (3.9 mg)。组分B2-10-5 (75.0 mg) 经MB300-40/75型C18反相硅胶柱色谱分离, 以不同比例水∶甲醇为流动相梯度洗脱, 得到B2-10-5-1~B2-10-5-8。其中, B2-10-5-3 (26.7 mg) 经半制备HPLC (MGⅡ C18色谱柱, 18%乙腈, 1.8 mL·min-1) 分离得到两个组分B2-10-5-3-1和B2-10-5-3-2, 后者(17.0 mg) 经半制备HPLC (CD-Ph色谱柱, 35%甲醇, 2 mL·min-1) 分离, 得到化合物1 (tR = 28.1 min, 2.5 mg) 和2 (tR = 31.2 min, 1.5 mg)。1经半制备HPLC (CD-Ph色谱柱, 15%乙腈, 2 mL·min-1) 手性分离, 得到(-)-1 (tR = 44.0 min, 1.0 mg) 和(+)-1 (tR = 47.9 min, 0.6 mg)。消旋体2经半制备HPLC (Chiralpak AD-H手性色谱柱, 正己烷-乙醇7∶3, 2 mL·min-1) 拆分, 获得(-)-2 (tR = 21.9 min, 0.7 mg) 和(+)-2 (tR = 23.9 min, 0.7 mg)。亚组分B2-10-5-5 (12.4 mg) 经半制备HPLC (MGⅡ C18色谱柱, 12.5%乙腈, 2 mL·min-1) 分离得到消旋体9 (tR = 34.0 min, 1.4 mg), 进一步经半制备HPLC (Chiralpak IG手性色谱柱, 正己烷-乙醇2∶1, 2 mL·min-1) 拆分获得(+)-9 (tR = 16.5 min, 0.7 mg) 和(-)-9 (tR = 20.2 min, 0.7 mg)。
组分B2-12 (0.79 g) 经Sephadex LH-20凝胶柱色谱(50%甲醇) 分离, 得到B2-12-1~B2-12-5, 其中B2-12-5 (0.44 g) 经MB300-40/75型C18反相柱色谱分离(水-甲醇梯度洗脱) 得到B2-12-5-1~B2-12-5-5。B2-12-5-1 (36.4 mg) 经半制备HPLC (AQ C18色谱柱, 21%乙腈, 2.25 mL·min-1) 分离得到消旋体5 (tR = 33.7 min, 2.5 mg); 5经半制备HPLC (Chiralpak IG手性色谱柱, 正己烷-乙醇7∶3, 1.25 mL·min-1) 拆分获得(+)-5 (tR = 31.6 min, 1.3 mg) 和(-)-5 (tR = 34.9 min, 1.1 mg)。B2-12-5-2 (41.4 mg) 经半制备HPLC (PFP C18色谱柱, 16%乙腈, 2.25 mL·min-1) 分离得到B2-12-5-2-1和消旋体7 (tR = 31.6 min, 3.3 mg); 7再经半制备HPLC (Chiralpak AD-H手性色谱柱, 正己烷-乙醇10∶1, 2.5 mL·min-1) 拆分获得(+)-7(tR = 24.0 min, 1.3 mg) 和(-)-7 (tR = 37.5 min, 1.7 mg)。B2-12-5-2-1 (34.1 mg) 经半制备HPLC (AQ C18色谱柱, 30%甲醇, 2.25 mL·min-1) 分离得到消旋体6 (tR = 23.2 min, 3.8 mg); 6用手性正相半制备HPLC (Chiralpak AD-H手性色谱柱, 正己烷-异丙醇5∶2, 2 mL·min-1) 拆分获得(+)-6 (tR = 35.3 min, 1.6 mg) 和(-)-6 (tR = 38.5 min, 2.0 mg)。B2-12-5-3 (29.7 mg) 经半制备HPLC (PFP C18色谱柱, 16%乙腈, 2 mL·min-1) 和半制备HPLC (AQ C18色谱柱, 32%乙腈, 2 mL·min-1) 纯化得到消旋体3 (tR = 27.4 min, 1.2 mg), 进一步用半制备HPLC (Chiralpak AD-H手性色谱柱, 正己烷-乙醇2∶1, 2 mL·min-1) 拆分获得(+)-3 (tR = 18.8 min, 0.5 mg) 和(-)-3 (tR = 30.8 min, 0.5 mg)。
B2-13 (1.46 g) 经硅胶柱色谱分离, 以二氯甲烷和甲醇为溶剂梯度洗脱, 得到B2-13-1~B2-13-18, 其中B2-13-2 (16.0 mg) 经半制备HPLC (MGⅡ C18色谱柱, 25%乙腈, 2 mL·min-1) 分离得到B2-13-2-1~B2-13-2-3。B2-13-2-1 (5.6 mg) 再经半制备HPLC (MGⅡ C18色谱柱, 35%甲醇, 2 mL·min-1) 分离得到消旋体8 (tR = 21.5 min, 1.2 mg), 进一步用半制备HPLC (Chiralpak IG手性色谱柱, 正己烷-乙醇2∶1, 2.0 mL·min-1) 拆分获得(+)-8 (tR = 24.9 min, 0.6 mg) 和(-)-8 (tR = 28.9 min, 0.5 mg)。
非等量对映体1: 白色无定形粉末; [α]$ {}_{\mathrm{D}}^{20} $ -4.0 (c 0.25, MeOH); UV (MeOH) λmax (log ε) 203 (4.71), 225 (4.34), 279 (3.90) nm; IR νmax 3 332, 2 957, 2 920, 2 582, 1 681, 1 602, 1 519, 1 454, 1 417, 1 262, 1 207, 1 130, 1 033, 803, 621 cm-1; 1H NMR (methanol-d4, 500 MHz)、13C NMR (methanol-d4, 125 MHz) 数据见表 1; (+)-HR-ESI-MS m/z 313.104 3 [M+Na]+ (C16H18O5Na计算值, 313.104 6)。(+)-1: [α]$ {}_{\mathrm{D}}^{20} $ +8.0 (c 0.06, MeOH); CD (MeOH): 200 (Δε +2.13), 234 (Δε +0.49), 287 (Δε +0.09) nm。(-)-1: 无色针晶, mp > 300 ℃; [α]$ {}_{\mathrm{D}}^{20} $ -8.3 (c 0.10, MeOH); CD (MeOH): 200 (Δε -2.76), 234 (Δε -0.60), 280 (Δε -0.16) nm; X-ray单晶衍射数据: C16H18O5, M = 290, 单斜晶系, a = 8.988 3 (2) Å, b = 9.018 5 (2) Å, c = 9.362 9 (3) Å, α = 90°, β = 115.131 (3)°, γ = 90°, V = 687.12 (3) Å3, ρ = 1.403 g·cm-3, 空间群P21, T = 100.00 (10) K, Z = 2, μ (Cu Kα) = 0.865 mm-1。收集12 929个单晶衍射数据, 其中2 725个独立衍射数据, Rint = 0.041 8, R1 = 0.030 4 [I > 2σ(I)], wR2 = 0.076 5 [I > 2σ(I)], R1 = 0.033 2 (全部数据), wR2 = 0.077 7 (全部数据), F2 = 1.107; CCDC: 2344834。
外消旋体2: 白色无定形粉末; [α]$ {}_{\mathrm{D}}^{20} $ ≈0 (c 0.14, MeOH); UV (MeOH) λmax (log ε) 202 (5.07), 229 (4.46), 281 (4.09) nm; IR νmax 3 357, 2 957, 2 920, 2 851, 1 682, 1 524, 1 467, 1 375, 1 279, 1 206, 1 131, 1 035, 801, 723, 607 cm-1; 1H NMR (methanol-d4, 500 MHz)、13C NMR (methanol-d4, 125 MHz) 数据见表 1; (+)-HR-ESI-MS m/z 369.130 3 [M+Na]+ (C19H22O6Na计算值, 369.130 9)。(+)-2: [α]$ {}_{\mathrm{D}}^{20} $ +8.6 (c 0.07, MeOH); CD (MeOH): 207 (Δε +2.49), 238 (Δε +2.13), 287 (Δε +0.37) nm; (-)-2: [α]$ {}_{\mathrm{D}}^{20} $ -8.6 (c 0.07, MeOH); CD (MeOH): 207 (Δε -1.65), 237 (Δε -1.29), 286 (Δε -0.28) nm。
外消旋体3: 白色无定形粉末; [α]$ {}_{\mathrm{D}}^{20} $ ≈0 (c 0.12, MeOH); UV (MeOH) λmax (log ε) 204 (5.20), 230 (4.81), 279 (4.62) nm; IR νmax 3 352, 2 957, 2 919, 2 851, 1 741, 1 682, 1 605, 1 518, 1 466, 1 433, 1 378, 1 261, 1 205, 1 183, 1 151, 1 127, 1 102, 1 037, 801, 723 cm-1; 1H NMR (methanol-d4, 600 MHz)、13C NMR (methanol-d4, 150 MHz) 数据见表 1; (+)-HR-ESI-MS m/z 385.124 8 [M+Na]+ (C19H22O7Na计算值, 385.125 8)。(+)-3: [α]$ {}_{\mathrm{D}}^{20} $ +6.0 (c 0.05, MeOH); CD (MeOH): 206 (Δε +1.70), 279 (Δε +0.14) nm; (-)-3: [α]$ {}_{\mathrm{D}}^{20} $ -6.0 (c 0.05, MeOH); CD (MeOH): 206 (Δε -1.74), 283 (Δε -0.16) nm。
外消旋体4: 黄色黏稠油状物; [α]$ {}_{\mathrm{D}}^{20} $ ≈0 (c 0.28, MeOH); UV (MeOH) λmax (log ε) 204 (4.72), 231 (4.38), 285 (4.32), 318 (4.28) nm; IR νmax 3 399, 2 961, 2 923, 2 852, 1 687, 1 599, 1 509, 1 464, 1 422, 1 261, 1 157, 1 137, 1 030, 982, 854, 818 cm-1; 1H NMR (methanol-d4, 600 MHz)、13C NMR (methanol-d4, 150 MHz) 数据见表 1; (+)-HR-ESI-MS m/z 413.120 3 [M+Na]+ (C20H22O8Na, 计算值413.120 7)。(+)-4: [α]$ {}_{\mathrm{D}}^{20} $ +46.3 (c 0.10, MeOH); CD (MeOH): 206 (Δε -1.40), 231 (Δε +1.08), 273 (Δε +0.31), 292 (Δε -0.58) nm; (-)-4: [α]$ {}_{\mathrm{D}}^{20} $ -48.1 (c 0.14, MeOH); CD (MeOH): 228 (Δε -2.51), 273 (Δε -0.86) nm。
外消旋体5: 淡黄色胶状物; [α]$ {}_{\mathrm{D}}^{20} $ ≈0 (c 0.25, MeOH); UV (MeOH) λmax (log ε) 204 (5.44), 238 (4.68), 280 (4.33) nm; IR νmax 3 304, 2 955, 2 921, 2 851, 1 681, 1 601, 1 515, 1 465, 1 431, 1 377, 1 261, 1 206, 1 131, 1 036, 1 029, 802, 722, 653 cm-1; 1H NMR (methanol-d4, 600 MHz)、13C NMR (methanol-d4, 150 MHz) 数据见表 1; (+)-HR-ESI-MS m/z 401.157 0 [M+Na]+ (C20H26O7Na计算值, 401.157 1)。(+)-5: [α]$ {}_{\mathrm{D}}^{20} $ +14.6 (c 0.13, MeOH); CD (MeOH): 213 (Δε +3.29), 250 (Δε -0.16), 284 (Δε +0.41) nm; (-)-5: [α]$ {}_{\mathrm{D}}^{20} $ -16.4 (c 0.11, MeOH); CD (MeOH): 213 (Δε -3.96), 249 (Δε +0.06), 285 (Δε -0.66) nm。
应用Gaussian 16软件的GMMX模块, 在MMFF94分子力场中采用蒙特卡洛方式对化合物的构象进行搜索, 得到相对能量小于3.0 kcal·mol-1的优势构象。应用Gaussian 16[40]程序、密度泛函算法和CPCM模型(conductor-like polarizable continuum model) 模拟溶剂效应, 在B3LYP/6-31+G(d, p) 水平上, 对搜索获得的构象进一步优化得到优化构象及其玻尔兹曼分布。在B3LYP/6-311++G(d, p) 水平上, 计算Gibbs自由能在3.0 kcal·mol-1以内的优化构象的各激发态能量、振子强度和转子强度。根据优化构象的玻尔兹曼分布概率, 通过加权平均化, 拟合得到理论计算的ECD和UV谱图[(σ = 0.30 eV)]。
作者贡献: 石建功负责实验设计、数据分析, 以及稿件修改及定稿; 郭庆兰负责实验指导、数据分析及稿件的撰写和修改; 张潇逸负责化学实验实施; 夏召参与初步分离实验; 雷小强负责化学实验指导; 李卫平和刘荣负责当归头原料药材的采集。
利益冲突: 作者声明无利益冲突。
  • 国家自然科学基金资助项目(82293681)
  • 国家自然科学基金资助项目(82293685(82293680))
  • 中国医学科学院医学与健康科技创新工程资助项目(2021-I2M-1-028)
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doi: 10.16438/j.0513-4870.2024-0365
  • 接收时间:2024-04-15
  • 首发时间:2025-11-26
  • 出版时间:2024-07-12
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  • 收稿日期:2024-04-15
  • 修回日期:2024-04-17
基金
国家自然科学基金资助项目(82293681)
国家自然科学基金资助项目(82293685(82293680))
中国医学科学院医学与健康科技创新工程资助项目(2021-I2M-1-028)
作者信息
    1.中国医学科学院、北京协和医学院药物研究所, 天然药物活性物质与功能国家重点实验室, 北京 100050
    2.甘肃省化工研究院有限责任公司, 甘肃省精细化工重点实验室, 甘肃 兰州 620100

通讯作者:

*郭庆兰, Tel: 86-10-83154789, Fax: 86-10-63017757, E-mail: ;
石建功, Tel: 86-10-63025166, Fax: 86-10-63017757, E-mail:
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https://castjournals.cast.org.cn/joweb/yxxb/CN/10.16438/j.0513-4870.2024-0365
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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