Article(id=1208489296114332280, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1208489268704555590, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2021-0781, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1621785600000, receivedDateStr=2021-05-24, revisedDate=1624464000000, revisedDateStr=2021-06-24, acceptedDate=null, acceptedDateStr=null, onlineDate=1766055900838, onlineDateStr=2025-12-18, pubDate=1633968000000, pubDateStr=2021-10-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766055900838, onlineIssueDateStr=2025-12-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766055900838, creator=13701087609, updateTime=1766055900838, updator=13701087609, issue=Issue{id=1208489268704555590, tenantId=1146029695717560320, journalId=1189982191388893191, year='2021', volume='56', issue='10', pageStart='2597', pageEnd='2880', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766055894304, creator=13701087609, updateTime=1766137041718, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1208829625678033640, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1208489268704555590, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1208829625682227945, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1208489268704555590, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=2830, endPage=2834, ext={EN=ArticleExt(id=1208489296714117811, articleId=1208489296114332280, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Tumour cytotoxic activities of a new eudesmane-type sesquiterpenoid from Artemisia deversa Diels, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=

Five compounds were isolated from an ethanol extract of Artemisia deversa Diels by solvent extraction, Diaion HP-20, CHP20/P120 MCI, Sephadex LH-20, silica gel and preparative high performance liquid chromatography. Their structures were elucidated by MS, NMR and X-ray as artemideversal (1), 7-hydroxy-6-methoxycoumarin (2), 6, 7-dimethoxycoumarin (3), caffeic acid (4) and 4', 5, 7-trihydroxy flavone (5). Compound 1 is a new eudesmane-type sesquiterpene. In vitro cytotoxic activities of the five compounds were explored by MTT testing with HepG2, A549, HeLa and MRC-5 cell lines. Results show that compounds 1 and 5 significantly inhibited cellular proliferation. The IC50 of compound 1 in A549 and HepG2 cells was 8.36 and 16.51 μmol·L-1; the IC50 of compound 5 in A549 and HepG2 cells was 17.06 and 7.95 μmol·L-1.

, correspAuthors=Bin ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2021 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=Bin ZHANG, Guo-ping ZENG, Xiao-qin XIONG, Qiao-qiao ZHOU), CN=ArticleExt(id=1208489298115015513, articleId=1208489296114332280, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=侧蒿中一个新的桉烷型倍半萜及其肿瘤细胞毒活性, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=

采用溶剂提取法,Diaion HP-20大孔树脂、CHP20/P120 MCI、Sephadex LH-20葡聚糖凝胶、硅胶及制备高效液相等色谱方法对侧蒿的乙醇提取物进行分离纯化,得到5个化合物,根据质谱、核磁共振谱以及X-ray单晶衍射等数据确定了它们的结构,分别为侧蒿缩醛(1)、7-羟基-6-甲氧基香豆素(2)、6,7-二甲氧基香豆素(3)、咖啡酸(4)和4',5,7-三羟基黄酮(5)。其中,化合物1为新化合物。采用甲基噻唑蓝法(MTT)测试了化合物1~5对四种细胞株(人肝癌细胞HepG2、人非小细胞肺癌细胞A549、人宫颈癌细胞HeLa、人胚肺细胞MRC-5)的体外细胞毒活性,结果表明,化合物15对A549和HepG2显示出较强的生长抑制活性,IC50值分别为8.36、16.51 μmol·L-1和17.06、7.95 μmol·L-1

, correspAuthors=张彬, authorNote=null, correspAuthorsNote=
*张彬, Tel: 86-27-87943931, E-mail:
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No.1
δH (J in Hz)δC
14.20 (1H, dd, 11.7, 5.0)77.2 (d)
21.67 (1Hβ, m)
1.77 (1Hα, m)
26.7 (t)
32.23 (1Hβ, ddd, 14.2, 5.2, 2.0)
2.67 (1Hα, dddt, 14.2, 13.5, 6.0, 2.0)
29.2 (t)
4149.0 (s)
576.1 (s)
61.61 (1Hα, br dd, 13.7, 4.2)
1.82 (1Hβ, dd, 13.7, 12.6)
35.7 (t)
72.76 (1H, tt-like, 12.6, 4.2)33.7 (d)
81.68 (1Hβ, m)
1.80 (1Hα, m)
30.7 (t)
94.16 (1H, dd, 11.4, 4.9)77.7 (d)
1040.2 (s)
11152.1 (s)
124.14, 4.18 (each 1H, br d, 14.8)65.3 (t)
134.98, 5.11 (each 1H, br s)109.6 (t)
140.91 (3H, s)11.0 (q)
154.76, 4.87 (each 1H, br s)109.4 (t)
164.90 (1H, q, 5.1)99.8 (d)
171.35 (3H, d, 5.1)21.0 (q)
), ArticleFig(id=1208489305341800793, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1208489296114332280, language=CN, label=Table 1, caption=

1H NMR (400 MHz) and 13C NMR (100 MHz) spectral data of compound 1 in CDCl3

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No.1
δH (J in Hz)δC
14.20 (1H, dd, 11.7, 5.0)77.2 (d)
21.67 (1Hβ, m)
1.77 (1Hα, m)
26.7 (t)
32.23 (1Hβ, ddd, 14.2, 5.2, 2.0)
2.67 (1Hα, dddt, 14.2, 13.5, 6.0, 2.0)
29.2 (t)
4149.0 (s)
576.1 (s)
61.61 (1Hα, br dd, 13.7, 4.2)
1.82 (1Hβ, dd, 13.7, 12.6)
35.7 (t)
72.76 (1H, tt-like, 12.6, 4.2)33.7 (d)
81.68 (1Hβ, m)
1.80 (1Hα, m)
30.7 (t)
94.16 (1H, dd, 11.4, 4.9)77.7 (d)
1040.2 (s)
11152.1 (s)
124.14, 4.18 (each 1H, br d, 14.8)65.3 (t)
134.98, 5.11 (each 1H, br s)109.6 (t)
140.91 (3H, s)11.0 (q)
154.76, 4.87 (each 1H, br s)109.4 (t)
164.90 (1H, q, 5.1)99.8 (d)
171.35 (3H, d, 5.1)21.0 (q)
), ArticleFig(id=1208489305492795750, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1208489296114332280, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
Compd.IC50 values against cancer cells/μmol·L-1
HepG2A549HeLaMRC-5
116.518.3622.7119.60
246.5168.5378.1478.46
350.8248.0565.9250.63
4----
57.9517.0613.5526.19
Cisplatin8.173.145.3714.92
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IC50 values of compounds 1-5 against different cancer cells. -: No active

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Compd.IC50 values against cancer cells/μmol·L-1
HepG2A549HeLaMRC-5
116.518.3622.7119.60
246.5168.5378.1478.46
350.8248.0565.9250.63
4----
57.9517.0613.5526.19
Cisplatin8.173.145.3714.92
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侧蒿中一个新的桉烷型倍半萜及其肿瘤细胞毒活性
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张彬 1, 2, * , 曾国平 1, 2 , 熊校勤 1, 2 , 周巧巧 1, 2
药学学报 | 研究论文 2021,56(10): 2830-2834
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药学学报 | 研究论文 2021, 56(10): 2830-2834
侧蒿中一个新的桉烷型倍半萜及其肿瘤细胞毒活性
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张彬1, 2, * , 曾国平1, 2, 熊校勤1, 2, 周巧巧1, 2
作者信息
  • 1.湖北第二师范学院化学与生命科学学院, 湖北 武汉 430205
  • 2.植物抗癌活性物质提纯与应用湖北省重点实验室, 湖北 武汉 430205

通讯作者:

*张彬, Tel: 86-27-87943931, E-mail:
Tumour cytotoxic activities of a new eudesmane-type sesquiterpenoid from Artemisia deversa Diels
Bin ZHANG1, 2, * , Guo-ping ZENG1, 2, Xiao-qin XIONG1, 2, Qiao-qiao ZHOU1, 2
Affiliations
  • 1. Department of Chemistry and Life Science, Hubei University of Education, Wuhan 430205, China
  • 2. Hubei Key Laboratory of Purification and Application of Plant Anti-cancer Active Ingredients, Wuhan 430205, China
出版时间: 2021-10-12 doi: 10.16438/j.0513-4870.2021-0781
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采用溶剂提取法,Diaion HP-20大孔树脂、CHP20/P120 MCI、Sephadex LH-20葡聚糖凝胶、硅胶及制备高效液相等色谱方法对侧蒿的乙醇提取物进行分离纯化,得到5个化合物,根据质谱、核磁共振谱以及X-ray单晶衍射等数据确定了它们的结构,分别为侧蒿缩醛(1)、7-羟基-6-甲氧基香豆素(2)、6,7-二甲氧基香豆素(3)、咖啡酸(4)和4',5,7-三羟基黄酮(5)。其中,化合物1为新化合物。采用甲基噻唑蓝法(MTT)测试了化合物1~5对四种细胞株(人肝癌细胞HepG2、人非小细胞肺癌细胞A549、人宫颈癌细胞HeLa、人胚肺细胞MRC-5)的体外细胞毒活性,结果表明,化合物15对A549和HepG2显示出较强的生长抑制活性,IC50值分别为8.36、16.51 μmol·L-1和17.06、7.95 μmol·L-1

侧蒿  /  化学成分  /  侧蒿缩醛  /  细胞毒活性

Five compounds were isolated from an ethanol extract of Artemisia deversa Diels by solvent extraction, Diaion HP-20, CHP20/P120 MCI, Sephadex LH-20, silica gel and preparative high performance liquid chromatography. Their structures were elucidated by MS, NMR and X-ray as artemideversal (1), 7-hydroxy-6-methoxycoumarin (2), 6, 7-dimethoxycoumarin (3), caffeic acid (4) and 4', 5, 7-trihydroxy flavone (5). Compound 1 is a new eudesmane-type sesquiterpene. In vitro cytotoxic activities of the five compounds were explored by MTT testing with HepG2, A549, HeLa and MRC-5 cell lines. Results show that compounds 1 and 5 significantly inhibited cellular proliferation. The IC50 of compound 1 in A549 and HepG2 cells was 8.36 and 16.51 μmol·L-1; the IC50 of compound 5 in A549 and HepG2 cells was 17.06 and 7.95 μmol·L-1.

Artemisia deversa Diels  /  chemical composition  /  artemideversal  /  cytotoxic activity
张彬, 曾国平, 熊校勤, 周巧巧. 侧蒿中一个新的桉烷型倍半萜及其肿瘤细胞毒活性. 药学学报, 2021 , 56 (10) : 2830 -2834 . DOI: 10.16438/j.0513-4870.2021-0781
Bin ZHANG, Guo-ping ZENG, Xiao-qin XIONG, Qiao-qiao ZHOU. Tumour cytotoxic activities of a new eudesmane-type sesquiterpenoid from Artemisia deversa Diels[J]. Acta Pharmaceutica Sinica, 2021 , 56 (10) : 2830 -2834 . DOI: 10.16438/j.0513-4870.2021-0781
侧蒿(Artemisia deversa Diels) 为菊科蒿属植物, 生长于陕西南部、甘肃东南部、湖北西部及四川东北部等, 生于海拔1 000~2 300 m地区林下、林缘、山谷、坡地及河边等[1]。民间常以此属植物全草入药, 具有清热利湿、抗菌消炎、平喘祛痰、通经活络、保肝利胆等功效[2]。对蒿属植物化学成分研究显示, 该属植物富含有苯丙素、黄酮和倍半萜类化合物, 其中部分化合物显示出较强的生理活性[3-5], 如从黄花蒿中提取得到的青蒿素具有很好的抗疟活性, 滨蒿中的滨蒿内酯具有明显的平喘作用[6], 茵陈蒿中的茵陈黄酮、异鼠李黄素和6, 7-二羟基香豆素有抑制H9淋巴细胞内HIV复制的作用等[7]。目前, 对于侧蒿仅有本课题组前期对侧蒿挥发油进行了报道[8], 为了进一步阐明侧蒿的化学成分、筛选出结构新颖的具有生理活性的天然产物, 本文对侧蒿80%乙醇提取物进行分离纯化, 从中分离得到1个倍半萜类、3个苯丙素类和1个黄酮类化合物(图 1), 其中侧蒿缩醛(1) 为新化合物, 7-羟基-6-甲氧基香豆素(2)、6, 7-二甲氧基香豆素(3)、咖啡酸(4) 和4', 5, 7-三羟基黄酮(5) 为已知化合物, 化合物1~5均是首次从该植物中分离得到。MTT法显示化合物1235具有体外肿瘤细胞毒活性。
化合物1为无色针状晶体, 易溶于氯仿。正离子模式下的HR-ESI-MS得出分子式为C17H26O4 (m/z 317.172 2 [M+Na]+, 计算值317.172 9), 拥有5个不饱和度。它的红外光谱在3 369、3 082、1 656、905 cm-1处有吸收峰, 提示结构中含有羟基和碳碳双键功能团。在氘代氯仿的1H NMR谱(表 1) 中, 检测到两组末端烯质子信号: 4.98, 5.11 (each 1H, br s, H-13); 4.76, 4.87 (each 1H, br s, H-15), 一个特别的四重峰缩醛质子: 4.90 (1H, q, J = 5.1 Hz, H-16), 两个连氧次甲基质子信号: 4.20 (1H, dd, J = 11.7, 5.0 Hz, H-1) 与4.16 (1H, dd, J = 11.4, 4.9 Hz, H-9), 一组连烯键的羟甲基谐偶质子信号: 4.14, 4.18 (each 1H, br d, J = 14.8 Hz, H-12), 以及高场处的两个甲基: 1.35 (3H, d, J = 5.1 Hz, H-17) 与0.91 (3H, s, H-14)。在它的13C NMR谱(表 1) 中共检测到17个碳信号, 包括低场区的两组末端烯碳信号: 152.1 (s, C-11), 149.0 (s, C-4), 109.6 (t, C-13), 109.4 (t, C-15), 以及一个特征性的缩醛碳: 99.8 (d, C-16); 在高场区检测到两个季碳(其中一个氧化的)、3个次甲基碳(其中两个氧化的)、5个亚甲基碳(其中一个氧化的) 以及两个甲基碳信号。检测到双峰甲基与缩醛质子有1H, 1H-COSY相关信号(图 2), 表明结构中含有一个乙缩醛取代基, 而剩下的15个碳源于倍半萜母核。经氢碳核磁数据仔细比较, 其母核部分与已报道的桉烷型倍半萜5α-hydroxy-β-costol相似[9], 主要差异在于化合物1的图谱中新检测到两个氧化次甲基碳信号: δC 77.2与77.7。在它的HMBC谱中(图 2), 观测到单峰甲基氢信号(H-14) 与这两个氧化次甲基碳有相关, 说明C-1与C-9位被氧化了。此外, 缩醛质子信号也与C-1、C-9有HMBC相关, 表明桉烷母核是通过C-1、C-9上的羟基与乙醛片段形成了缩醛, 继而新生成了一个六元环。在立体化学方面, 观测到H-7与H-9、H-9与H-16、H-1与H-16的NOESY相关, 表明它们都是α取向的直立键质子。鉴于六元三环稠合体系具有高度刚性的椅式(优势) 构象, 通过特征性的耦合常数与NOESY相关的详细分析, 进一步复核与验证了所解析结构。最后, 通过X-ray单晶衍射(图 3) 手段确定了它的绝对构型, 化合物1的化学结构如图 1所示, 该结构被命名为: 侧蒿缩醛(artemideversal), 其关键性的二维相关与氢碳核磁信号全归属分别整理于图 2表 1
化合物2: 黄色针晶, mp 201~203 ℃, 1H NMR (CD3OD, 400 MHz) δ: 3.91 (3H, s, OCH3), 6.23 (1H, d, J = 9.4 Hz, H-3), 6.82 (1H, s, H-8), 7.14 (1H, s, H-5), 7.89 (1H, d, J = 9.4 Hz, H-4), 8.10 (1H, s, OH); 13C NMR (CD3OD, 100 MHz) δ: 163.0 (CO), 150.0 (C-9), 149.0 (C-7), 146.1 (C-6), 144.9 (C-4), 111.2 (C-3), 110.0 (C-10), 108.6 (C-5), 102.6 (C-8), 55.5 (OCH3)。以上NMR数据通过与文献[10]对照一致, 鉴定为7-羟基-6-甲氧基香豆素。
化合物3: 白色针晶, mp 143~145 ℃, 1H NMR (CD3OD, 400 MHz) δ: 3.80 (3H, s, OCH3), 3.85 (3H, s, OCH3), 6.29 (1H, d, J = 9.4 Hz, H-3), 6.82 (1H, s, H-8), 7.13 (1H, s, H-5), 7.83 (1H, d, J = 9.5 Hz, H-4); 13C NMR (CD3OD, 100 MHz) δ: 161.0 (CO), 150.0 (C-9), 152.1 (C-7), 148.9 (C-6), 144.5 (C-4), 112.9 (C-3), 113.9 (C-10), 110.5 (C-5), 100.7 (C-8), 56.8 (OCH3), 55.3 (OCH3)。以上NMR数据通过与文献[11]对照一致, 鉴定为6, 7-二甲氧基香豆素。
化合物4: 黄色粉末, mp 202~204 ℃, 1H NMR (CD3OD, 400 MHz) δ: 6.21 (1H, d, J = 16.1 Hz, H-8), 6.80 (1H, d, J = 8.1 Hz, H-5), 6.94 (1H, dd, J = 8.1, 1.9 Hz, H-6), 7.06 (1H, d, J = 1.9 Hz, H-2), 7.50 (1H, d, J = 16.1 Hz, H-7); 13C NMR (CD3OD, 100 MHz) δ: 127.8 (C-1), 115.3 (C-2), 146.8 (C-3), 148.2 (C-4), 114.9 (C-5), 123.1 (C-6), 147.1 (C-7), 116.6 (C-8), 170.9 (C-9)。以上NMR数据通过与文献[12]对照一致, 鉴定为咖啡酸。
化合物5: 黄色针晶, mp 346~348 ℃, 1H NMR (DMSO-d6, 400 MHz) δ: 6.21 (1H, d, J = 2.0 Hz, H-6), 6.47 (1H, d, J = 1.9 Hz, H-8), 6.77 (1H, s, H-3), 6.91 (2H, d, J = 8.8 Hz, H-3', H-5'), 7.93 (2H, d, J = 8.8 Hz, H-2', H-6'), 10.35 (1H, s, 4'-OH), 10.80 (1H, s, 7-OH), 12.95 (1H, s, 5-OH); 13C NMR (DMSO-d6, 100 MHz) δ: 164.7 (C-2), 103.3 (C-3), 182.2 (C-4), 163.0 (C-5), 99.5 (C-6), 164.3 (C-7), 93.9 (C-8), 157.8 (C-9), 104.1 (C-10), 121.4 (C-1'), 128.9 (C-2'), 116.5 (C-3'), 161.7 (C-4'), 116.5 (C-5'), 128.2 (C-6')。以上NMR数据通过与文献[13]对照一致, 鉴定为4', 5, 7-三羟基黄酮。
MTT法肿瘤细胞毒活性测试结果见表 2。结果表明, 化合物1235对4种肿瘤细胞HepG2、A549、HeLa、MRC-5具有不同程度的生长抑制活性, 其中化合物1对A549和化合物5对HepG2的抑制作用较强, 半数抑制浓度分别为8.36 μmol·L-1和7.95 μmol·L-1, 接近阳性对照品顺铂, 化合物15对其他3种肿瘤细胞也显示出一定的抑制活性, 化合物23对4种肿瘤细胞的活性均很弱, 化合物4则未表现出明显的抑制活性。
侧蒿于2017年7月采自于湖北省英山县天堂寨大别山主峰(海拔1 700 m), 由湖北第二师范学院化学与生命科学学院戴月副教授鉴定为菊科蒿属植物侧蒿(Artemisia deversa Diels), 原植物标本现存于湖北第二师范学院化学与生命科学学院植物标本室(标本编号: 20170728)。
氘代试剂: CDCl3、CD3OD、DMSO-d6 (美国CIL公司); 色谱纯乙腈(美国TEDIA公司); Sephadex LH-20葡聚糖凝胶(瑞典GE公司); Diaion HP-20型大孔吸附树脂(日本三菱公司); CHP20/P120 MCI树脂(日本三菱公司); 200~300目硅胶(青岛海洋化工厂); 二氯甲烷、乙酸乙酯、乙醇和甲醇等均为国产分析纯试剂(湖北欣申试化工科技有限公司); 人肝癌细胞HepG2、人非小细胞肺癌细胞A549、人宫颈癌细胞HeLa、人胚肺细胞MRC-5, 购自中国科学院上海细胞库; 甲基噻唑蓝(MTT)、顺铂(cisplatin) 和D5796 DMEM培养基均为美国Sigma-Aldrich公司产品; 胰蛋白酶购自美国Thermo Fisher Scientific公司。
SolariX7.0T高分辨傅里叶变换质谱仪、AV-400 MHz超导核磁共振仪(德国Bruker公司); XtaLAB PRO MM007HF (Cu) 双微焦斑X射线单晶衍射仪(日本Rigaku公司); Autopol IV旋光仪(美国Rudolph公司); Nicolet iS50R傅里叶变换红外光谱仪(美国Thermo Scientific公司); UV-5200PC紫外可见分光光度计(上海元析仪器有限公司); X-6精密显微熔点测定仪(北京亚力恩机电技术研究所); 2535制备型高效液相色谱仪、制备高效液相色谱柱SunFireTM Prep C18 OBDTM柱(250 mm × 19 mm, 5 μm)、半制备高效液相色谱柱SunFireTM Prep C18 OBDTM柱(150 mm × 10 mm, 5 μm)、分析型高效液相色谱柱SunFireTM Prep C18 OBDTM柱(250 mm × 4.6 mm, 5 μm) (美国Waters公司); 1260分析兼半制备型高效液相色谱仪、分析型高效液相色谱柱ZORBAXTM SB-C18柱(150 mm × 4.6 mm, 5 μm) (美国Agilent公司); Milli-Q Integral 5型纯水仪(德国Merck Millipore公司); R-210型旋转蒸发仪(瑞士Büchi公司生产); miVac Quattro真空离心浓缩仪(英国GeneVac公司) Spectramax® plus384型多功能酶标仪(美国Molecular Devices公司); 3111型CO2培养箱(美国Thermo Fisher Scientific公司); IX51型倒置荧光显微镜(日本Olympus公司)。
侧蒿干燥全草1.4 kg, 粉碎, 80%乙醇(8 L) 室温下渗漉提取, 合并提取液, 减压浓缩得总浸膏约120 g, 加水混悬, 依次用石油醚、二氯甲烷、乙酸乙酯和正丁醇萃取, 得石油醚部位55 g、二氯甲烷部位15.3 g、乙酸乙酯部位9.45 g、正丁醇部位7.4 g。乙酸乙酯部位上Diaion HP-20大孔树脂柱, 依次用0%、20%、40%、60%、80%、90%、100%乙醇-水体系洗脱, 将以上各洗脱液置于旋转蒸发仪上浓缩。Diaion HP-20 80%乙醇洗脱部分(2.93 g) 上正相硅胶柱色谱, 用石油醚-乙酸乙酯(体积比100∶0, 10∶1, 5∶1, 3∶1, 2∶1, 1∶1, 1∶3, 0∶1) 梯度洗脱, 薄层色谱(TLC) 检测合并, 得到12个组分(记作Fr. 1~Fr. 12)。将Fr. 7 (53.8 mg) 上Sephadex LH-20葡聚糖凝胶柱色谱, 用石油醚-二氯甲烷-甲醇(体积比4∶5∶1) 洗脱, 得到4个组分(记作Fr. a-1~Fr. a-4); Fr. a-2 (29.1 mg) 经半制备高效液相(乙腈-水体积比为20∶80, 流速17.0 mL·min-1) 得到化合物1 (23.5 mg, tR = 18.0 min)。将Fr. 9 (18.2 mg) 上Sephadex LH-20葡聚糖凝胶柱色谱, 用石油醚-二氯甲烷-甲醇(体积比2∶3∶1) 洗脱, 得到化合物5 (10.3 mg)。将Fr. 11 (13.9 mg) 经半制备高效液相(乙腈-水体积比为20∶80, 流速4.7 mL·min-1) 得到化合物4 (8.6 mg, tR = 35.0 min)。取二氯甲烷部位上CHP20/P120 MCI柱, 依次用0%、20%、40%、60%、80%、90%、100%甲醇-水体系洗脱, 将以上各洗脱液置于旋转蒸发仪上浓缩。CHP20/P120 MCI 60%甲醇洗脱部分(5.7 g) 上正相硅胶柱色谱, 用石油醚-乙酸乙酯(体积比100∶0, 150∶1, 100∶1, 80∶1, 50∶1, 30∶1, 20∶1, 15∶1, 10∶1, 5∶1, 3∶1, 2∶1, 1∶1) 梯度洗脱, 薄层色谱(TLC) 检测合并, 得到21个组分(记作Fr.1~Fr. 21); 将Fr. 15 (46.8 mg) 经LH-20葡聚糖凝胶柱, 用二氯甲烷-甲醇(体积比1∶2) 洗脱, 得到3个组分(记作Fr. a-1~Fr. a-3); Fr. a-1 (14.7 mg) 经半制备高效液相(乙腈-水体积比为10∶90, 流速4.7 mL·min-1) 得到化合物3 (6.9 mg, tR = 40.5 min); Fr. a-3 (19.2 mg) 经半制备高效液相(乙腈-水体积比为5∶95, 流速1.0 mL·min-1) 得到化合物2 (15.2 mg, tR = 87.2 min)。
化合物1选取0.50 mm × 0.20 mm × 0.12 mm大小的单晶, 在100 K的温度下, 采用日本XtaLAB AFC12 (RINC): Kappa single衍射仪(Cu Kα射线, λ = 1.541 84 Å) 在3.217° ≤ θ ≤ 73.595°范围内进行扫描, 共收集78 765个衍射点, 其中独立衍射点为12 445个[Rint= 0.033 3, Rsigma= 0.018 5]。晶体结构采用Olex2[14]软件, SHELXT程序包[15, 16]解析, 用最小二乘法结合对结构参数进行校正。化合物1的分子式为C17H26O4, 相对分子质量(Mr) 为294.38; mp 161~163 ℃; 晶体属斜方晶系, 空间群为P21; 晶胞参数: a = 0.907 333 (3) nm, b = 2.745 93 (8) nm, c =1.268 088 (4) nm, α = γ = 90°, β = 92.979 6 (3)°, 晶体体积V = 3.155 136 (18) nm3; 计算密度Dcalc = 1.239 g·cm-3, 晶胞内分子数Z = 8, F (000) = 1 280.0, Flack系数0.03 (5)。化合物1的晶体学数据已上传剑桥晶体学数据中心晶体数据库, CCDC号2079081。
以顺铂作为阳性对照。在10 cm培养皿中, 培养细胞至对数生长期, 用1 mL胰蛋白酶消化并离心收集细胞, 细胞计数板计数后将细胞稀释成每毫升5×104个细胞, 接种至96孔板, 每孔100 μL, 用5% CO2培养箱37 ℃培养过夜后, 每孔加入经培养基稀释至2倍终浓度的待测样品, 使药物的终浓度分别为6.25、12.5、25、50和100 μg·mL-1, 每个浓度设置4个复孔, 继续培养24 h后, 每孔加入20 μL MTT溶液(0.5% MTT), 继续培养4 h。培养结束后, 吸去上清, 每孔加入100 μL二甲基亚砜, 置摇床上低速振荡至结晶物完全溶解, 使用酶标仪在490 nm处检测吸光值。通过以下公式计算各组细胞的存活率:
细胞抑制率(%) = (1 - 空白组吸光度值) / 实验组吸光度值× 100%
作者贡献: 张彬负责完成实验的设计、实验的实施、数据的分析和文章的撰写; 曾国平为实验提供指导并对文章进行了审阅; 熊校勤和周巧巧参与实施实验和数据分析。
利益冲突: 所有作者声明无任何利益冲突。
  • 国家自然科学基金资助项目(81903115)
  • 湖北省教育厅科学技术研究项目(B2019183)
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doi: 10.16438/j.0513-4870.2021-0781
  • 接收时间:2021-05-24
  • 首发时间:2025-12-18
  • 出版时间:2021-10-12
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  • 收稿日期:2021-05-24
  • 修回日期:2021-06-24
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国家自然科学基金资助项目(81903115)
湖北省教育厅科学技术研究项目(B2019183)
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    1.湖北第二师范学院化学与生命科学学院, 湖北 武汉 430205
    2.植物抗癌活性物质提纯与应用湖北省重点实验室, 湖北 武汉 430205

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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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