Article(id=1308841486985298091, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308841198224240856, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2025-1575, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1766678400000, receivedDateStr=2025-12-26, revisedDate=1772726400000, revisedDateStr=2026-03-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1789981727595, onlineDateStr=2026-09-21, pubDate=1781193600000, pubDateStr=2026-06-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789981727595, onlineIssueDateStr=2026-09-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789981727595, creator=13701087609, updateTime=1789981727595, updator=13701087609, issue=Issue{id=1308841198224240856, tenantId=1146029695717560320, journalId=1189982191388893191, year='2026', volume='61', issue='6', pageStart='1881', pageEnd='2376', issueExtLink='null', onlineDate='null', pubDate='1781193600000', pubDateStr='2026-06-12', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789981658750, creator='13701087609', updateTime=1789984187230, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1308851803500933401, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308841198224240856, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1308851803500933402, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308841198224240856, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2245, endPage=2249, ext={EN=ArticleExt(id=1308841487203401900, articleId=1308841486985298091, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=The stereo-conformations of one new enantiomeric serratinine alkaloids in Huperzia serrata, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=

A total of four alkaloid compounds, serratinine A (1), fawcettimine (2), 7-hydroxylycopodine (3), and huperzine I (4) were isolated from Huperzia serrata by AB-8 macroporous adsorption resin, Octadecylsilyl, Sephadex LH-20 and silica gel column chromatography combined with the semi-pre HPLC. The isolated compounds were structurally characterized by mass spectrometry (MS), nuclear magnetic resonance spectroscopy (NMR), X-ray single crystal diffraction and circular dichroism (CD). Among them, compound 1 was a square crystalline form with the stereo configuration of (4R, 7S, 8S, 12S, 13S, 15S)-serratinine, named serratinine A. Compound 1 is a new serratinine alkaloid, the first crystal culture and stereo configuration of compound 1 were confirmed in this study.

, authors=Jia-qi WANG1, Xiao-min WANG1, Zi-yu LÜ2, Chun-mei CHEN2, Jia GUO2, Rong BAI2, Zheng-xiang ZHANG1, Guo-liang CHEN2, Duo CAO1, 2, *, authorsList=Jia-qi WANG, Xiao-min WANG, Zi-yu LÜ, Chun-mei CHEN, Jia GUO, Rong BAI, Zheng-xiang ZHANG, Guo-liang CHEN, Duo CAO, authorCompany=null, correspAuthors=Duo CAO, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2026 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, fund=null), CN=ArticleExt(id=1308841487908044977, articleId=1308841486985298091, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=千层塔全草中一个新型生物碱的鉴定及其立体构型确证, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=

采用AB-8大孔树脂、ODS反相硅胶、葡聚糖凝胶Sephadex LH 20柱层析、半制备液相色谱和晶体培养等方法, 从千层塔中共分离了4个生物碱化合物, 分别为serratinine A (1)、fawcettimine (2)、7-hydroxylycopodine (3)、huperzine I (4)。进一步通过质谱(MS)、核磁共振波谱(NMR)、X-ray单晶衍射和圆二色谱(CD) 等方法, 对分离到的化合物进行结构鉴定。其中, 化合物1是正方体晶形, 立体构型为(4R, 7S, 8S, 12S, 13S, 15S)-serratinine, 命名为serratinine A, 本研究首次对其进行晶体培养和立体构型确证。

, authors=王嘉琪1, 王晓敏1, 吕子玉2, 陈春梅2, 郭佳2, 白蓉2, 张正祥1, 陈国梁2, 曹朵1, 2, *, authorsList=王嘉琪, 王晓敏, 吕子玉, 陈春梅, 郭佳, 白蓉, 张正祥, 陈国梁, 曹朵, authorCompany=null, correspAuthors=曹朵, authorNote=

作者贡献:

王嘉琪为本文第一作者, 负责鉴定和文章撰写; 王晓敏化合物的分离; 吕子玉和陈春梅对提取分离和结构鉴定提供了一定帮助; 郭佳和白蓉负责数据分析及作图; 张正祥和陈国梁负责稿件修改等相关工作; 曹朵负责实验的设计, 对实验中遇到的问题给予指导。

, correspAuthorsNote=
曹朵, E-mail:
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A: Serratinine A forms colorless, transparent block-shaped crystals; B: The chemical structure of serratinine A; C: Stereochemical conformation of serratinine A; D: Single-crystal X-ray diffraction analysis of serratinine A; E: Solid-state circular dichroism (CD) spectrum of serratinine A, figureFileSmall=e26ooA2K+N31HUNA6meVCg==, figureFileBig=eDf7tyT3uwFbvP3an/qKNA==, tableContent=null), ArticleFig(id=1308841492941209840, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841486985298091, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
No.SerratinineSerratinine A
δCδCδH
151.851.8 (CH2)2.43 (1H, t, J = 10.2 Hz),
2.67 (1H, dd, J = 10.9, 9.4 Hz)
220.720.7 (CH2)1.88 (2H, m)
320.620.6 (CH2)1.66 (2H, m)
471.177.1 (C)-
5212.7212.6 (C)-
637.437.4 (CH2)1.96 (1H, m), 2.20 (1H, m)
739.340.0 (CH)2.92 (1H, t, J = 11.0 Hz)
870.470.4 (CH)3.55 (1H, dd, J = 7.6, 3.2 Hz)
950.049.9 (CH2)2.10 (1H, m),
2.57 (1H, d, J = 16.0 Hz)
1020.520.3 (CH2)1.35 (2H, d, J = 16.0 Hz)
1126.626.6 (CH)2.11 (1H, m)
1240.143.8 (C)-
1372.672.7 (CH)3.37 (1H, t, J = 11.0 Hz)
1431.831.7 (CH2)1.17 (1H, m), 1.66 (1H, m)
1523.723.6 (CH)2.10 (1H, m)
1618.118.0 (CH3)0.87 (3H, d, J = 7.2 Hz)
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1H NMR (800 MHz) and 13C NMR (200 MHz) data of serratinine A in DMSO-d6

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No.SerratinineSerratinine A
δCδCδH
151.851.8 (CH2)2.43 (1H, t, J = 10.2 Hz),
2.67 (1H, dd, J = 10.9, 9.4 Hz)
220.720.7 (CH2)1.88 (2H, m)
320.620.6 (CH2)1.66 (2H, m)
471.177.1 (C)-
5212.7212.6 (C)-
637.437.4 (CH2)1.96 (1H, m), 2.20 (1H, m)
739.340.0 (CH)2.92 (1H, t, J = 11.0 Hz)
870.470.4 (CH)3.55 (1H, dd, J = 7.6, 3.2 Hz)
950.049.9 (CH2)2.10 (1H, m),
2.57 (1H, d, J = 16.0 Hz)
1020.520.3 (CH2)1.35 (2H, d, J = 16.0 Hz)
1126.626.6 (CH)2.11 (1H, m)
1240.143.8 (C)-
1372.672.7 (CH)3.37 (1H, t, J = 11.0 Hz)
1431.831.7 (CH2)1.17 (1H, m), 1.66 (1H, m)
1523.723.6 (CH)2.10 (1H, m)
1618.118.0 (CH3)0.87 (3H, d, J = 7.2 Hz)
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ParameterSerratinine A
Empirical formulaC16H27NO4 (contains one H2O molecule)
Formula weight297.38
Crystal systemOrthorhombic
Space groupP212121
a / Å7.623 4 (10)
b / Å11.439 9 (15)
c / Å18.046 0 (2)
α / deg90.00
β / deg90.00
γ / deg90.00
V / Å31 573.8 (4)
Z4.
Dcalcd / g·cm-31.255
μ / mm-10.089
Rint0.019 5
Goodness of fit F21.035
CuKα / λ1.541 78
R1 [I > 2σ(I)]0.041 0
wR2 [I > 2σ(I)]0.101 9
R1 [all refl.]0.046 6
wR2 [all refl.]0.106 5
Flack parameter0.06
), ArticleFig(id=1308841493134147827, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841486985298091, language=CN, label=Tab.2, caption=

Crystallographic parameters for serratinine A (Cu)

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ParameterSerratinine A
Empirical formulaC16H27NO4 (contains one H2O molecule)
Formula weight297.38
Crystal systemOrthorhombic
Space groupP212121
a / Å7.623 4 (10)
b / Å11.439 9 (15)
c / Å18.046 0 (2)
α / deg90.00
β / deg90.00
γ / deg90.00
V / Å31 573.8 (4)
Z4.
Dcalcd / g·cm-31.255
μ / mm-10.089
Rint0.019 5
Goodness of fit F21.035
CuKα / λ1.541 78
R1 [I > 2σ(I)]0.041 0
wR2 [I > 2σ(I)]0.101 9
R1 [all refl.]0.046 6
wR2 [all refl.]0.106 5
Flack parameter0.06
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千层塔全草中一个新型生物碱的鉴定及其立体构型确证
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王嘉琪 1 , 王晓敏 1 , 吕子玉 2 , 陈春梅 2 , 郭佳 2 , 白蓉 2 , 张正祥 1 , 陈国梁 2 , 曹朵 1, 2, *
药学学报 | 研究论文 2026,61(6): 2245-2249
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药学学报 |研究论文 2026 , 61 (6) : 2245 -2249
千层塔全草中一个新型生物碱的鉴定及其立体构型确证
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2延安大学生命科学学院, 陕西省黄土高原资源植物研究与利用省市共建重点实验室, 陕西省区域生物资源保育与利用工程技术研究中心, 陕西 延安 716000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1308841488121954482, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841486985298091, xref=1, ext=[AuthorCompanyExt(id=1308841488130343091, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841486985298091, companyId=1308841488121954482, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1Yan'an Medical College of Yan'an University, Yan'an 716000, China), AuthorCompanyExt(id=1308841488138731700, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841486985298091, companyId=1308841488121954482, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1延安大学延安医学院, 陕西 延安 716000)]), AuthorCompany(id=1308841488205840565, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841486985298091, xref=2, ext=[AuthorCompanyExt(id=1308841488218423478, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841486985298091, companyId=1308841488205840565, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2Shaanxi Key Laboratory of Research and Utilization of Resource Plants on the Loess Plateau, Shaanxi Engineering and Technological Research Center for Conversation and Utilization of Regional Biological Resources, College of Life Sciences, Yan'an University, Yan'an 716000, China), AuthorCompanyExt(id=1308841488226812087, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841486985298091, companyId=1308841488205840565, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2延安大学生命科学学院, 陕西省黄土高原资源植物研究与利用省市共建重点实验室, 陕西省区域生物资源保育与利用工程技术研究中心, 陕西 延安 716000)])])]
王嘉琪1, 王晓敏1, 吕子玉2, 陈春梅2, 郭佳2, 白蓉2, 张正祥1, 陈国梁2, 曹朵1, 2, *
作者信息
  • 1延安大学延安医学院, 陕西 延安 716000
  • 2延安大学生命科学学院, 陕西省黄土高原资源植物研究与利用省市共建重点实验室, 陕西省区域生物资源保育与利用工程技术研究中心, 陕西 延安 716000
通讯作者:
曹朵, E-mail:
作者简介:

作者贡献:

王嘉琪为本文第一作者, 负责鉴定和文章撰写; 王晓敏化合物的分离; 吕子玉和陈春梅对提取分离和结构鉴定提供了一定帮助; 郭佳和白蓉负责数据分析及作图; 张正祥和陈国梁负责稿件修改等相关工作; 曹朵负责实验的设计, 对实验中遇到的问题给予指导。

The stereo-conformations of one new enantiomeric serratinine alkaloids in Huperzia serrata
Jia-qi WANG1, Xiao-min WANG1, Zi-yu LÜ2, Chun-mei CHEN2, Jia GUO2, Rong BAI2, Zheng-xiang ZHANG1, Guo-liang CHEN2, Duo CAO1, 2, *
Affiliations
  • 1Yan'an Medical College of Yan'an University, Yan'an 716000, China
  • 2Shaanxi Key Laboratory of Research and Utilization of Resource Plants on the Loess Plateau, Shaanxi Engineering and Technological Research Center for Conversation and Utilization of Regional Biological Resources, College of Life Sciences, Yan'an University, Yan'an 716000, China
出版时间: 2026-06-12 doi: 10.16438/j.0513-4870.2025-1575
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采用AB-8大孔树脂、ODS反相硅胶、葡聚糖凝胶Sephadex LH 20柱层析、半制备液相色谱和晶体培养等方法, 从千层塔中共分离了4个生物碱化合物, 分别为serratinine A (1)、fawcettimine (2)、7-hydroxylycopodine (3)、huperzine I (4)。进一步通过质谱(MS)、核磁共振波谱(NMR)、X-ray单晶衍射和圆二色谱(CD) 等方法, 对分离到的化合物进行结构鉴定。其中, 化合物1是正方体晶形, 立体构型为(4R, 7S, 8S, 12S, 13S, 15S)-serratinine, 命名为serratinine A, 本研究首次对其进行晶体培养和立体构型确证。

千层塔  /  立体构型  /  serratinine A

A total of four alkaloid compounds, serratinine A (1), fawcettimine (2), 7-hydroxylycopodine (3), and huperzine I (4) were isolated from Huperzia serrata by AB-8 macroporous adsorption resin, Octadecylsilyl, Sephadex LH-20 and silica gel column chromatography combined with the semi-pre HPLC. The isolated compounds were structurally characterized by mass spectrometry (MS), nuclear magnetic resonance spectroscopy (NMR), X-ray single crystal diffraction and circular dichroism (CD). Among them, compound 1 was a square crystalline form with the stereo configuration of (4R, 7S, 8S, 12S, 13S, 15S)-serratinine, named serratinine A. Compound 1 is a new serratinine alkaloid, the first crystal culture and stereo configuration of compound 1 were confirmed in this study.

Huperzia serrata  /  stereo-conformation  /  serratinine A
王嘉琪, 王晓敏, 吕子玉, 陈春梅, 郭佳, 白蓉, 张正祥, 陈国梁, 曹朵. 千层塔全草中一个新型生物碱的鉴定及其立体构型确证. 药学学报, 2026 , 61 (6) : 2245 -2249 . DOI: 10.16438/j.0513-4870.2025-1575
Jia-qi WANG, Xiao-min WANG, Zi-yu LÜ, Chun-mei CHEN, Jia GUO, Rong BAI, Zheng-xiang ZHANG, Guo-liang CHEN, Duo CAO. The stereo-conformations of one new enantiomeric serratinine alkaloids in Huperzia serrata[J]. Acta Pharmaceutica Sinica, 2026 , 61 (6) : 2245 -2249 . DOI: 10.16438/j.0513-4870.2025-1575
千层塔(蛇足石杉, Huperzia serrata) 为石杉科石杉属植物, 是一种具有重要药用价值的植物[1], 其化学成分主要包括生物碱、三萜类化合物和黄酮类物质[2]。其中, 生物碱是千层塔的主要活性成分, 包括石杉碱甲、石杉碱乙等。石杉碱甲是一种高效、选择性的乙酰胆碱酯酶抑制剂, 对改善记忆、治疗阿尔茨海默病和重症肌无力具有显著效果[3]。此外, 千层塔还含有多种三萜类化合物, 如千层塔烯二醇、千层塔三醇等, 这些成分具有抗氧化、抗炎等多种生物活性[4]。千层塔的药理活性主要体现在其对中枢神经系统的调节作用, 能够增强学习记忆能力、改善认知功能, 并对神经退行性疾病具有潜在的治疗作用[5]。近年来, 研究人员从千层塔中分离鉴定了多个新的生物碱和三萜类化合物, 进一步拓展了其药用潜力[6]。
Serratinine是千层塔中一种主要的生物碱成分, 1964年研究人员首次分离该类生物碱, 但其波谱数据和立体构型仍未全面报道[7-9]。因此, 对serratinine研究的不足之处在于未能全面解析serratinine的结构特征, 限制了对其药理活性的深入探究。本研究首次通过NMR、红外光谱(IR)、紫外光谱(UV)、MS和X-ray单晶衍射全面地对分离到的一个新serratinine生物碱进行结构确证。
化合物1: 甲醇-水体系中重结晶得四边形块状透明晶体, 可溶于甲醇、氯仿和丙酮等溶剂。ESI-MS质谱中分子离子峰[M+H]+ m/z 280.17, 高分辨质谱m/z 280.182 0 [M+H]+ (calcd. for C16H26O3N) 提示其分子式为C16H25O3N。化合物1的1H NMR谱(表1) 在高场显示甲基氢质子信号δH 0.87 (3H, d, J = 7.2 Hz)、3个亚甲基氢质子δH 1.88 (2H, m)、δH 1.66 (2H, m) 和δH 1.35 (2H, d, J = 16.0 Hz)。13C NMR结合DEPT谱图(表1) 显示化合物1有1个甲基碳信号、8个亚甲基碳信号、4个次甲基碳信号、2个季碳信号和1个羰基碳信号, 共16个碳信号。HSQC谱中显示δH 0.87 (3H, d, J = 7.2 Hz) 与δC 18.0相关, 提示δH 0.87 (3H, d, J = 7.2 Hz) 为甲基氢质子; δH 1.66 (2H, m) 与δC 20.6相关, 提示δH 1.66 (2H, m) 是C-3 (δC 20.6) 氢质子信号; δH 1.88 (2H, m) 与δC 20.7相关, 提示其为C-2 (δC 20.7) 氢质子信号; δH 1.96 (1H, m) 和δH 2.20 (1H, m) 均与δC 37.4相关, 提示其为C-6 (δC 37.4) 氢质子信号; δH 2.10 (1H, m), 2.57 (1H, d, J = 16.0 Hz) 均与δC 49.9相关, 提示其为C-9 (δC 49.9) 氢质子信号; δH 2.43 (1H, t, J = 10.2 Hz) 和2.67 (1H, dd, J = 10.9, 9.4 Hz) 均与δC 51.8相关, 提示其为C-1 (δC 51.8) 氢质子信号; δH 2.92 (1H, t, J = 11.0 Hz) 与δC 40.0相关, 提示δH 2.92 (1H, t, J = 11.0 Hz) 是C-7 (δC 40.0) 氢质子信号; δH 3.55 (1H, dd, J = 7.6, 3.2 Hz) 与δC 70.4 (C-8) 相关, δH 3.55 (1H, dd, J = 7.6, 3.2 Hz) 是C-8氢质子信号; δH 3.37 (1H, t, J = 11.0 Hz) 与δC 72.7相关, 提示其为C-13 (δC 72.7) 氢质子。HMBC谱中显示δH 2.92 (1H, t, J = 11.0 Hz) 和δH 0.87 (甲基氢质子信号) 与δC 70.4相关, δH 2.92 (1H, t, J = 11.0 Hz) 与δC 72.7相关, 提示C-7与C-8相连、C-15位有甲基取代; δH 1.96 (1H, m) 和δH 2.20 (1H, m) 均与δC 212.6相关, 提示羰基碳(δC 212.6, C-5) 与C-6 (δC 37.4) 相连; δH 3.37 (1H, s) 与δC 43.8相关, 提示该季碳(δC 43.8, C-12) 与C-13相连; C-8氢质子(δH 3.55, 1H, dd, J = 7.6, 3.2 Hz) 与C-15 (δC 23.6) 相关, 同时δH 1.17 (1H, m) 和δH 1.66 (1H, m) 也均与C-15相关, 表明C-15与亚甲基碳(δC 31.7, C-14) 和C-8位相连。1H-1H COSY谱中δH 2.10 (1H, m, H-15) 与δH 3.37 (1H, s) 和δH 3.55 (1H, dd, J = 7.6, 3.2 Hz) 均相关, 且δH 3.55 (1H, dd, J = 7.6, 3.2 Hz) 与2.92 (1H, t, J = 11.0 Hz) 相关; NOESY谱中H-15与H-8相关但与H-13无相关性, H-8与H-7无相关性, 提示C-15位甲基与C-8位羟基在同侧, 与C-13位羟基在异侧; H-8氢质子与C-7位氢质子在异侧(图1)。
进一步, 通过重结晶方法得到化合物1为无色透明四边形块状晶体(大小约3.0 mm × 3.0 mm, 图2A), 通过X-射线单晶衍射测定晶体结构(Cu靶), 化合物1的结构为斜方晶的P212121空间群(a、b、c分别为7.623 4、11.439 9和18.046 0 Å, α、β、γ均为90.00°, V = 1 573.8 Å3), X-射线单晶衍射表明化合物1的立体构型为4R、7S、8S、12S、13S和15S (图2B、C)。同时, 还测试了化合物1的X-射线粉末衍射, 表明测试样品结构与单晶结构是同构的(图2D)。此外, 化合物1的固态圆二色光谱在290 nm下显示出正的科顿效应(图2E), 根据以上信息鉴定化合物1为(4R, 7S, 8S, 12S, 13S, 15S)-serratinine, 命名serratinine A, 经检索, SciFinder数据库和文献中无相关报道。
Serratinine是千层塔中一种主要的生物碱成分, Inubushi等[7]于1964年报道称首次从千层塔中分离到一种新骨架生物碱serratinine, 但仅提供了其熔点、IR、溶解度等理化参数, 未对其平面结构和立体结构进行确证。1968年, Inubushi等[8]再次通过衍生化法报道了serratinine平面结构, 仍未鉴定其立体构型, 也未提供全面的NMR和MS数据。1993年, Zhou等[9]对serratinine提供了NMR数据, 但MS数据和立体构型仍未报道。本研究首次通过NMR、IR、UV、MS全面地对serratinine生物碱进行了结构鉴定, 并通过重结晶和X-Ray单晶衍射确定了其立体构型(表2)。与Zhou等[9]报道的serratinine NMR数据进行比较, serratinine A的C-4和C-12的化学位移值显著向低场移动(分别移动6和3.7个单位)。因此, 本研究得到化合物1与已报道的serratinine结构有明显差别, 经SciFinder数据库检索serratinine A为新的serratinine生物碱。
千层塔(Lycopodium serratum Thunb.) 全草药材, 共计19 kg, 购自中国湖北省恩施市。该药材经西北大学生命科学学院郭斌研究员鉴定, 为石松科千层塔全株药材。药材标本(编号: 17-03-10) 现保存于西北大学生命科学学院。
Agilent Series 1100 SL液质联用仪(高分辨ESI), 美国安捷伦科技有限公司; Bruker D8 QUEST X-ray单晶衍射仪、Bruker Avance 500、AV 800型核1D和2D核磁共振仪, 德国布鲁克公司; Bio-logic MOS-500圆二色谱仪, 法国比奥罗杰公司; RE-6000A及RE3000A型旋转蒸发仪, 上海亚荣生化仪器有限公司; DLSB-10/20型低温冷却循环泵, 郑州长城科工贸有限公司; ST-07B密闭式粉碎机, 北京京创泰宁伟业科技公司; NP7000C型泵、NU3000型紫外检测器半制备高效液相色谱仪、C18色谱柱(250 mm × 10 mm, 10 μm), 江苏汉邦科技有限公司; C18色谱柱(250 mm × 4.6 mm, 5 μm), 日本YMC公司; 葡聚糖凝胶Sephadex LH-20、ODS反相硅胶, 上海技舟化工科技有限公司; 100~200、200~300、300~400目正相层析硅胶、GF254薄层层析硅胶, 青岛海洋化工厂; AB-8大孔吸附树脂, 北京慧德易科技有限责任公司; MCI树脂(型号MCI Gel-CHP 20-P, 75~150 μm), 日本三菱公司。其他部分实验设备和化学试剂TLC (薄层色谱) 显色剂、二氯甲烷、乙醇、甲醇等见课题组前期研究[10]。
取千层塔干燥全株19 kg粉碎后加10倍量的甲醇加热回流, 反复提取4次, 每次约2 h, 过滤后合并滤液, 65 ℃下减压浓缩得到浸膏约5.5 kg。将浸膏分为3份, 每份加5 L盐酸水溶液(pH 2.5), 超声使其充分溶解后, 过滤得滤液, 调节滤液至碱性(pH 10~11) 后, 分别加入与碱水等体积的石油醚、氯仿或乙酸乙酯进行萃取, 每份萃取3次, 分别合并水层、石油醚层、氯仿层和乙酸乙酯层萃取液, 减压浓缩有机相, 得到氯仿层浸膏约1.5 kg和乙酸乙酯层浸膏约500 g。分别取氯仿层浸膏1.4 kg和乙酸乙酯层浸膏400 g进行AB-8大孔树脂柱分离纯化, 乙醇-水(0∶100, 30∶70, 50∶50, 70∶30, 90∶10和100∶0) 梯度洗脱, TLC检测合并相似组分, 氯仿部位得Fr. A~G, 乙酸乙酯部位得Fr. H~M。其中, 氯仿部位下的Fr. C (643 g) 经AB-8大孔树脂柱层析, 甲醇-水(30∶70、50∶50、60∶30和80∶0) 梯度洗脱, TLC检测合并相似组分得Fr. C1~C4, 其中Fr. C3 (原洗脱液甲醇-水70∶30~80∶20) 在放置过程有白色粉末析出, 过滤后将白色粉末(约290 g) 完全溶解于甲醇-水体系(7∶3) 后在室温(20 ℃) 下静置, 通过溶剂挥发法进行晶体培养, 逐渐有四边形透明块状晶体形成, 过滤后得将母液溶剂减压回收后得白色粉末, 将白色粉末复溶在甲醇-水体系(7∶3) 中, 室温(20 ℃) 下静置, 通过溶剂挥发法再进行晶体培养, 有四边形块状透明晶体析出, 过滤后得到化合物1 (28.9 mg) (该部分内容已被专利保护, CN111349046A)[11]。
Fr. B (302 g) 进一步通过RP-18反相硅胶填料常压柱层析分离, 甲醇-水(30∶70, 40∶60, 50∶50, 60∶40, 70∶20和90∶0) 梯度洗脱, TLC检测后合并得Fr. B1~B6。Fr. B3通过MCI柱色谱分离纯化, 甲醇-水洗脱(40∶60、50∶50、60∶40、70∶30和80∶20) 得到5个组分Fr. B31~B35。Fr. B32 (320 mg) 再经常压RP-18反相硅胶柱层析得到6个组分Fr. B321~326, Fr. B323 (116.8 mg) 经半制备液相(乙腈-水, 95∶5, t = 21.3 min) 纯化得到化合物2 (8.22 mg)。
Fr. D4 (约64 g) 经氨基硅胶柱层析, 正己烷-乙酸乙酯(100∶0~0∶100) 梯度洗脱, TLC检测合并相似组分得Fr. D41~D45, 其中Fr. D42 (约11 g) 和Fr. D43 (约18 g) 再Sephadex LH 20凝胶柱层析, 甲醇洗脱后TLC检测分别得到Fr. D421~D425和Fr. D431~436。Fr. D423 (约210 mg) 经半制备液相(乙腈-水, 92∶8, t = 15.7 min) 制备得到化合物3 (7.12 mg)。
乙酸乙酯部位经AB-8大孔树脂柱富集纯化, 甲醇-水(30∶70、50∶50、60∶30和80∶0) 梯度洗脱, TLC检测合并相似组分得Fr. H~M。Fr. K (约129 g) 再进行常压氨基硅胶柱层析, 正己烷-乙酸乙酯梯度(100∶0~0∶100) 洗脱, TLC检测合并相似组分后得Fr. K1~K8, Fr. K3 (约300 mg) 经Sephadex LH 20凝胶柱层析, 甲醇洗脱, TLC检测合并得4个组分Fr. K31~34。其中Fr. K32 (88 mg) 和Fr. K33 (约121 mg) 再经半制备液相(乙腈-水, 95∶5, t = 17.4 min) 分离得到化合物4 (23.45 mg)。
化合物1: 四边形块状透明晶体, 熔点为253.7 ℃, 可溶于甲醇、氯仿和丙酮等溶剂。[α]$ {}_{\mathrm{D}}^{20} $ +28.3 (c 0.10, CH3OH); UV (CH3OH) λmax (log ε): 219; IR $ \nu $max: 3 602、3 432、3 201、1 742、1 732、1 433 cm-1, 提示分子中含有羰基和羟基; ESI-MS质谱中[M+H]+ m/z 280.17, 提示其相对分子质量为279, 高分辨质谱m/z 280.182 0 [M+H]+, 分子式为C16H25O3N, 1H和13C NMR数据见表1。
化合物2: 白色粉末, 可溶于甲醇、氯仿等溶剂。1H NMR (800 MHz, DMSO-d6) δ 1.09 (3H, d, J = 7.2 Hz, H-16), 1.65 (1H, m), 1.70 (1H, m), 2.05 (2H, m), 2.33 (2H, m), 2.33 (2H, m), 2.75 (1H, dd, J = 16.5, 8.0 Hz, H-9), 2.80 (2H, m), 3.15 (2H, d, J = 14.5 Hz, H-2), 3.36 (1H, ddd, J = 14.2, 14.2, 3.8 Hz, H-9), 5.97 (2H, d, J = 5.2 Hz, H-1); 13C NMR (200 MHz, DMSO-d6) δ 217.1 (C-5, C), 96.1 (C-13, C), 60.2 (C-4, CH), 55.9 (C-9, CH2), 51.1 (C-1, CH2), 47.4 (C-12, C), 43.7 (C-7, CH), 41.0 (C-14, CH2), 40.2 (C-6, CH2), 33.6 (C-3, CH2), 31.5 (C-8, CH2), 27.3 (C-11, CH2), 24.7 (C-2, CH2), 24.1 (C-15, CH), 21.4 (C-16, CH3), 20.0 (C-10, CH2), 以上1H、13C NMR及DEPT谱图与已知化合物fawcettimine基本一致[12]。
化合物3: 白色粉末, 可溶于甲醇, 丙酮等溶剂。1H NMR (800 MHz, DMSO-d6) δ 0.96 (3H, d, J = 5.9 Hz, H-16), 1.62 (2H, t, J = 13.3, 5.2 Hz, H-2), 1.33 (2H, t, J = 12.2, 2.0 Hz, H-15), 1.96 (2H, t, J = 13.2, 4.4 Hz, H-3), 2.11 (2H, d, J = 13.5 Hz, H-2), 2.72 (2H, d, J = 16.0 Hz, H-6), 3.15 (2H, t, J = 13.2, 2.2 Hz, H-1), 3.24 (1H, dd, J = 13.3, 3.2 Hz, H-4); 13C NMR (200 MHz, DMSO-d6) δ 207.0 (C-5, C), 73.0 (C-7, C), 66.6 (C-13, C), 52.0 (C-12, CH), 51.3 (C-6, CH2), 51.2 (C-8, CH2), 49.8 (C-9, CH2), 48.5 (C-1, CH2), 44.3 (C-4, CH), 40.1 (C-14, CH2), 24.1 (C-10, CH2), 27.0 (C-15, CH), 22.3 (C-16, CH3), 19.3 (C-3, CH2), 19.0 (C-2, CH2), 18.6 (C-11, CH2), 以上1H和13C NMR及DEPT谱图与已知化合物7-hydroxylycopodine基本一致[13]。
化合物4: 白色粉末, 可溶于甲醇、氯仿等溶剂。1H NMR (800 MHz, CDCl3) δ 1.06 (3H, d, J = 7.0 Hz, H-16), 1.36 (2H, d, J = 13.0 Hz, H-10), 2.00 (2H, m), 2.16 (1H, m), 2.28 (2H, m), 2.29 (2H, d, J = 13.0 Hz, H-3), 2.40 (2H, m), 2.63 (1H, d, J = 12.2 Hz, H-4), 2.78 (2H, dd, J = 16.1, 8.0 Hz, H-6), 3.02 (2H, m), 3.25 (2H, dd, J = 15.3 Hz, H-1), 3.93 (1H, d, J = 6.0 Hz, H-2), 5.68 (1H, d, J = 6.0 Hz, H-14); 13C NMR (200 MHz, CDCl3) δ 216.8 (C-5, C), 145.8 (C-13, C), 127.0 (C-14, CH), 71.2 (C-2, CH), 65.5 (C-1, CH2), 53.1 (C-9, CH2), 48.4 (C-4, CH), 47.0 (C-12, C), 44.3 (C-6, CH2), 39.6 (C-11, CH2), 37.2 (C-15, CH), 35.0 (C-3, CH2), 34.6 (C-8, CH2), 28.6 (C-7, CH), 21.6 (C-10, CH2), 21.3 (C-16, CH3), 以上1H、13C NMR及DEPT谱图与已知化合物huperzine I基本一致[14]。

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2026年第61卷第6期
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doi: 10.16438/j.0513-4870.2025-1575
  • 接收时间:2025-12-26
  • 首发时间:2026-09-21
  • 出版时间:2026-06-12
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  • 收稿日期:2025-12-26
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    1延安大学延安医学院, 陕西 延安 716000
    2延安大学生命科学学院, 陕西省黄土高原资源植物研究与利用省市共建重点实验室, 陕西省区域生物资源保育与利用工程技术研究中心, 陕西 延安 716000

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2种不同金属材料的力学参数
科
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属数
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genus
种数
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species
占总种数比例
Percentage of
total species (%)
属
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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