Article(id=1218551220340441755, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218551215722516887, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2018-0211, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1520784000000, receivedDateStr=2018-03-12, revisedDate=1522339200000, revisedDateStr=2018-03-30, acceptedDate=null, acceptedDateStr=null, onlineDate=1768454850516, onlineDateStr=2026-01-15, pubDate=1528732800000, pubDateStr=2018-06-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1768454850516, onlineIssueDateStr=2026-01-15, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1768454850516, creator=13701087609, updateTime=1768454850516, updator=13701087609, issue=Issue{id=1218551215722516887, tenantId=1146029695717560320, journalId=1189982191388893191, year='2018', volume='53', issue='6', pageStart='833', pageEnd='1015', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1768454849415, creator=13701087609, updateTime=1768457041227, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218560408919658653, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218551215722516887, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218560408919658654, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218551215722516887, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=976, endPage=979, ext={EN=ArticleExt(id=1218551220986364637, articleId=1218551220340441755, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Chaenomelesalkaloid A, a new alkaloid from the fruits of Chaenomeles sinensis (Thouin) Koehne, columnId=1218551220881507023, journalTitle=Acta Pharmaceutica Sinica, columnName=Medicinal Chemistry Medicinal Chemistry, runingTitle=null, highlight=null, articleAbstract=

The chemical constituents of the fruits of Chaenomeles sinensis (Thouin) Koehne were investigated using chromatographic methods, including Diaion HP-20, Toyopearl HW-40, MCI Gel CHP-20, ODS, Silica gel chromatography and semi-preparative-HPLC. Three compounds were isolated and their structures were elucidated with spectral data and physicochemical properties, which were identified as chaenomeles alkaloid A (1), ginsenine (2) and 1, 2, 3, 4-tetrahydro-1-methyl-β-carboline-3-car-boxylic acid (3). Among those, compound 1 is a new alkaloid, compound 2 and 3 were isolated from this plant for the first time. To investigate the protective effect of compounds 1-3 on Rat adrenal pheochromocytoma (PC-12) injury induced by the β-amyloid protein (Aβ25-35). The results show that compounds 2 and 3 have a significant protective effect on the PC12 cells exposed to Aβ25-35.

, correspAuthors=Wei-sheng FENG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2018 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=Wei-sheng FENG, Zhi-guang ZHANG, Meng LI, Jing-ke ZHANG, Xuan ZHAO, Yan-po SI, Zhi-yao BAI, Jin-jin LÜ, Xiao-ke ZHENG), CN=ArticleExt(id=1218551222643114903, articleId=1218551220340441755, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=从光皮木瓜中分离得到一个新的生物碱, columnId=1218551221116388078, journalTitle=药学学报, columnName=研究论文 药物化学, runingTitle=null, highlight=null, articleAbstract=

采用Diaion HP-20、Toyopearl HW-40、ODS、Sephadex LH-20、硅胶及半制备液相等多种色谱方法从光皮木瓜50%丙酮提取物分离得到3个吲哚类生物碱,利用MS、IR、UV、1D和2D NMR等波谱技术对其结构进行鉴定,分别为:木瓜新碱A(1)、Ginsenine(2)和(1S,3S)-1-甲基-1,2,3,4-四氢-β-咔啉-3-羧酸(3)。其中化合物1为新化合物,化合物23为首次从光皮木瓜中分离得到。采用MTT法检测化合物1~3β淀粉样蛋白25~35(Aβ25-35)诱导大鼠嗜铬细胞瘤细胞(PC-12)细胞损伤的保护作用,结果显示化合物23对PC-12细胞具有显著的保护作用。

, correspAuthors=冯卫生, authorNote=null, correspAuthorsNote=
* 冯卫生, Tel/Fax: 86-371-60190296, E-mail:
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The Flora of China (中国植物志)[M]. Beijing:Science Press, 1974:350., articleTitle=null, refAbstract=null), Reference(id=1218970790750503645, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551220340441755, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[2], rfOrder=1, authorNames=null, journalName=null, refType=null, unstructuredReference=Zhang DS, Gao HY, Wu LJ. Advances in the study of Chaenomeles sinensis[J]. J Shenyang Pharm Univ (沈阳药科大学学报), 2007, 24:721-725., articleTitle=null, refAbstract=null), Reference(id=1218970790859555553, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551220340441755, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[3], rfOrder=2, authorNames=null, journalName=null, refType=null, unstructuredReference=Yin ZH, Zhao C, Zhang JJ, et al. 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J Xi'an Med Univ (西安医科大学学报), 2002, 23:129-132., articleTitle=null, refAbstract=null)], funds=[Fund(id=1218970789198611133, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551220340441755, awardId=14204349, language=CN, fundingSource=中央引导地方科技发展专项:河南道地大宗药材种质评价及集约化种植与示范(14204349), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1218970780122137591, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551220340441755, xref=null, ext=[AuthorCompanyExt(id=1218970780130526199, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551220340441755, companyId=1218970780122137591, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. 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Structures of compounds 1-3

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Key HMBC of compound 1

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Key NOESY of compound 1

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The effect of compounds 1-3 on the viability of PC-12 cells exposed to Aβ25-35. n = 4, $\overline{x}±s$. *P < 0.05 vs control group; ##P < 0.01 vs model group

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No.δHδC
111.1 (1H, s, )
2-136.3
3-54.6
5-170.2
63.76 (1H, dd, J = 11.9, 4.5 Hz)53.7
7a3.12 (1H, dd, J = 16.0, 4.5 Hz)23.8
7b2.76 (1H, dd, J = 16.0, 11.9 Hz)23.8
8-105.4
9-126.2
107.41 (1H, d, J = 8.0 Hz)118.8
117.00 (1H, t, J = 7.6 Hz)118.2
127.08 (1H, t, J = 7.6 Hz)121.4
137.30 (1H, d, J = 8.0 Hz)111.3
14-136.9
151.70 (3H, s)26.2
161.60 (3H, s)26.2
), ArticleFig(id=1218970788921787040, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551220340441755, language=CN, label=Table 1, caption=

1H NMR (500 MHz in DMSO-d6) and 13C NMR (125 MHz in DMSO-d6) spectral data of compound 1

, figureFileSmall=null, figureFileBig=null, tableContent=
No.δHδC
111.1 (1H, s, )
2-136.3
3-54.6
5-170.2
63.76 (1H, dd, J = 11.9, 4.5 Hz)53.7
7a3.12 (1H, dd, J = 16.0, 4.5 Hz)23.8
7b2.76 (1H, dd, J = 16.0, 11.9 Hz)23.8
8-105.4
9-126.2
107.41 (1H, d, J = 8.0 Hz)118.8
117.00 (1H, t, J = 7.6 Hz)118.2
127.08 (1H, t, J = 7.6 Hz)121.4
137.30 (1H, d, J = 8.0 Hz)111.3
14-136.9
151.70 (3H, s)26.2
161.60 (3H, s)26.2
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冯卫生 1, 2, * , 张志广 1, 2 , 李孟 1, 2 , 张靖柯 1, 2 , 赵璇 1, 2 , 司彦坡 1, 2 , 白志尧 1, 2 , 吕锦锦 1, 2 , 郑晓珂 1, 2
药学学报 | 研究论文 药物化学 2018,53(6): 976-979
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药学学报 | 研究论文 药物化学 2018, 53(6): 976-979
从光皮木瓜中分离得到一个新的生物碱
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冯卫生1, 2, * , 张志广1, 2, 李孟1, 2, 张靖柯1, 2, 赵璇1, 2, 司彦坡1, 2, 白志尧1, 2, 吕锦锦1, 2, 郑晓珂1, 2
作者信息
  • 1.河南中医药大学, 河南 郑州 450046
  • 2.呼吸疾病诊疗与新药研发河南省协同创新中心, 河南 郑州 450046

通讯作者:

* 冯卫生, Tel/Fax: 86-371-60190296, E-mail:
Chaenomelesalkaloid A, a new alkaloid from the fruits of Chaenomeles sinensis (Thouin) Koehne
Wei-sheng FENG1, 2, * , Zhi-guang ZHANG1, 2, Meng LI1, 2, Jing-ke ZHANG1, 2, Xuan ZHAO1, 2, Yan-po SI1, 2, Zhi-yao BAI1, 2, Jin-jin LÜ1, 2, Xiao-ke ZHENG1, 2
Affiliations
  • 1. Henan University of Chinese Medicine, Zhengzhou 450046, China
  • 2. Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment and Chinese Medicine Development of Henan Province, Zhengzhou 450046, China
出版时间: 2018-06-12 doi: 10.16438/j.0513-4870.2018-0211
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采用Diaion HP-20、Toyopearl HW-40、ODS、Sephadex LH-20、硅胶及半制备液相等多种色谱方法从光皮木瓜50%丙酮提取物分离得到3个吲哚类生物碱,利用MS、IR、UV、1D和2D NMR等波谱技术对其结构进行鉴定,分别为:木瓜新碱A(1)、Ginsenine(2)和(1S,3S)-1-甲基-1,2,3,4-四氢-β-咔啉-3-羧酸(3)。其中化合物1为新化合物,化合物23为首次从光皮木瓜中分离得到。采用MTT法检测化合物1~3β淀粉样蛋白25~35(Aβ25-35)诱导大鼠嗜铬细胞瘤细胞(PC-12)细胞损伤的保护作用,结果显示化合物23对PC-12细胞具有显著的保护作用。

光皮木瓜  /  吲哚类生物碱  /  化学成分  /  PC-12细胞保护作用

The chemical constituents of the fruits of Chaenomeles sinensis (Thouin) Koehne were investigated using chromatographic methods, including Diaion HP-20, Toyopearl HW-40, MCI Gel CHP-20, ODS, Silica gel chromatography and semi-preparative-HPLC. Three compounds were isolated and their structures were elucidated with spectral data and physicochemical properties, which were identified as chaenomeles alkaloid A (1), ginsenine (2) and 1, 2, 3, 4-tetrahydro-1-methyl-β-carboline-3-car-boxylic acid (3). Among those, compound 1 is a new alkaloid, compound 2 and 3 were isolated from this plant for the first time. To investigate the protective effect of compounds 1-3 on Rat adrenal pheochromocytoma (PC-12) injury induced by the β-amyloid protein (Aβ25-35). The results show that compounds 2 and 3 have a significant protective effect on the PC12 cells exposed to Aβ25-35.

Chaenomeles sinensis (Thouin) Koehne  /  indole alkaloids  /  chemical constituents  /  protective effect on the PC-12 cells
冯卫生, 张志广, 李孟, 张靖柯, 赵璇, 司彦坡, 白志尧, 吕锦锦, 郑晓珂. 从光皮木瓜中分离得到一个新的生物碱. 药学学报, 2018 , 53 (6) : 976 -979 . DOI: 10.16438/j.0513-4870.2018-0211
Wei-sheng FENG, Zhi-guang ZHANG, Meng LI, Jing-ke ZHANG, Xuan ZHAO, Yan-po SI, Zhi-yao BAI, Jin-jin LÜ, Xiao-ke ZHENG. Chaenomelesalkaloid A, a new alkaloid from the fruits of Chaenomeles sinensis (Thouin) Koehne[J]. Acta Pharmaceutica Sinica, 2018 , 53 (6) : 976 -979 . DOI: 10.16438/j.0513-4870.2018-0211
光皮木瓜为[Chaenomeles sinensis (Thouin) Koehne]为蔷薇科植物, 又名榠栌、木李、海棠等, 广泛分布于陕西、山东、河南、湖北、安徽等地。光皮木瓜成熟果实又称为榠楂, 果皮干燥后仍光滑, 不皱缩, 故有光皮木瓜之称[1]。光皮木瓜的记载始于《本草经集注》, 其果实味酸、涩, 性平, 具有和胃舒筋、祛风湿、消痰止渴的功效[2]。目前, 从光皮木瓜中分离得到的化合物主要为三萜类、黄酮类、木脂素类等化合物。现代药理研究表明, 光皮木瓜具有抗氧化、抗炎、抗菌、降血糖、抗癌、抗老年痴呆等药理活性[3]。为了进一步明确光皮木瓜中的化学成分, 本实验采用Diaion HP-20、Toyopearl HW-40、ODS、Sephadex LH-20、硅胶及半制备高效液相等多种色谱方法从光皮木瓜50%含水丙酮提取物中分离得到3个吲哚类生物碱, 利用MS、IR、UV、1D和2D NMR等波谱技术对其结构进行鉴定, 分别为木瓜新碱A (1)、ginsenine (2)和(1S, 3S)-1-甲基-1, 2, 3, 4-四氢-β-咔啉-3-羧酸(3)。其中化合物1为新化合物, 化合物23为首次从光皮木瓜中分离得到, 结构见图 1。采用MTT法检测化合物1~3β淀粉样蛋白25-35 (Aβ25-35)诱导大鼠嗜铬细胞瘤细胞(PC-12)细胞损伤的保护作用, 结果显示化合物23对PC-12细胞具有显著的保护作用。
化合物1  白色粉末(甲醇)。$\left[ \alpha \right]_{\rm{D}}^{20}$ -6.975 (c 0.69, CH3OH); HR-TOF-MS给出分子离子峰m/z: 267.110 0 [M+Na]+ (Calcd. C14H16N2O2, 267.110 3), 提示化合物的分子式为C14H16N2O2; UV λmax (CH3OH)/ nm (logε): 221 (3.37)、270 (2.20)、280 (2.10)、289 (1.62), 说明结构中存在吲哚结构片段[4]。在1H NMR (500 MHz, DMSO-d6)谱中, δ 11.1 (1H, s, H-1)是一个活泼氢信号; 在6~8之间, 共有4个氢信号, 分别为δ 7.41 (1H, d, J = 8.0 Hz, H-10)、7.30 (1H, d, J = 8.0 Hz, H-13)、7.08 (1H, t, J = 7.6 Hz, H-12)和7.00 (1H, t, J = 7.6 Hz, H-11), 说明结构中存在一个邻位取代苯环的结构片段[5]; δ 3.76 (1H, dd, J = 11.9, 4.5 Hz, H-6)提示结构中有一个-CH, 且与吸电子基团相连; δ 3.12 (1H, dd, J = 16.0, 4.5 Hz, 7a)和2.76 (1H, dd, J = 16.0, 11.9 Hz, H-7b)说明结构中存在1个-CH2; δ 1.70 (3H, s, H-15)和1.60 (3H, s, H-16)提示结构中含有2个-CH3。在13C NMR (125 MHz, DMSO-d6)谱中, 共给出14个碳信号, 结合DEPT135谱可知, 化合物中有5个季碳[δC 170.2 (-CO)、136.9 (C-14)、136.3 (C-2)、126.2 (C-9)、54.6 (C-3), 其中δC 170.2 (C-5)是酰胺的特征信号]、5个叔碳信号[δC 121.4 (C-12)、118.8 (C-10)、118.2 (C-11)、111.3 (C-13)、53.7 (C-6)]、1个仲碳信号[δC 23.8 (C-7)]以及2个伯碳信号[δC 26.2 (C-15, 16)]。在HSQC谱中, δH 3.76 (H-6)与δC 53.7 (C-6)相关, δH 3.12 (H-7a)、2.76 (H-7b)均与δC 23.8 (C-7)相关, δH1.70 (H-15)、1.60 (H-16)均与δC 26.2 (C-15, 16)相关, 进一步确定了C-H的数据归属。在HMBC谱中(图 2), H-1与C-14、C-2、C-9、C-7有远程相关, 并根据碳的化学位移值, 可确定该化合物具有吲哚生物碱母核[6]; H-6与C-7、C-5有远程相关, 推测化合物结构中存在-CH2-CH(OH)-CONH-的结构片段①; H-7a、7b与C-8有相关信号, 说明片段①与C-8相连; H-15、16均与C-2、C-3有远程相关, 结合碳原子的化学位移, 表明结构中存在-C(CH3)2-NH-的结构片段②, 且与C-2相连。结合化合物的分子式, 推测片段①和②通过酰胺键相连, 说明该化合物是吲哚母核骈七元内酰胺的结构骨架(图 2)[7]。通过NOESY谱确定化合物1的相对立体构型。在NOESY谱中, H-1与H-15有相关, 说明H-1/15为β构型; H-6和CH3-16有相关, 说明H-6/CH3-16为α构型(图 3)。综上所述, 化合物1的结构确定为新化合物, 命名为木瓜新碱A。其1H NMR和13C NMR数据见表 1
采用MTT法检测化合物1~3对Aβ25-35诱导PC-12细胞损伤的保护作用。结果显示化合物23在浓度5和10 μmol·L-1时, 可显著提高Aβ25-35诱导PC-12损伤的细胞活力, 说明化合物23对PC-12细胞具有显著的保护作用(图 4)。
Bruker AVANCE Ⅲ 500核磁共振仪, TMS为内标; LC50型高压制备液相色谱仪[赛谱锐思(北京)科技有限公司, 紫外检测器为(UV200), 色谱柱为(YMC-Pack ODS-A, 250 mm × 10 mm. D. S-5 μm, 12 μm)]; Bruker maxis HD型飞行时间质谱仪(德国); 柱色谱所用硅胶H (160~200目)为青岛海洋化工厂生产, 所用分析纯和色谱纯试剂为天津市恒兴化学试剂制造有限公司和天津市四友精细化学品有限公司生产, 柱色谱填充剂所用Diaion HP-20、MCI Gel CHP-20、Toyopearl HW-40为日本三菱化学公司生产, Sephadex LH-20为Parmacia Biotech公司生产。
本实验所用的光皮木瓜, 采自河南南阳方城县, 经河南中医药大学董诚明教授鉴定为蔷薇科植物光皮木瓜[Chaenomeles sinensis (Thouin) Koehne]的新鲜成熟果实。
光皮木瓜鲜品30 kg, 用50%含水丙酮组织破碎提取3次, 提取液减压浓缩得总浸膏2.67 kg, 后用80%乙醇进行醇沉, 得到上层澄清溶液, 减压浓缩, 得浸膏1.26 kg。将其水溶离心、过滤, 上大孔吸附树脂Diaion HP-20, 依次用水、10%乙醇、20%乙醇、30%乙醇、50%乙醇、70%乙醇、95%乙醇洗脱, 得到的各个部位。其中10% (37.68 g)乙醇洗脱部位通过Toyopearl HW-40柱色谱, 梯度洗脱[甲醇-水(0:100→10:90→20:80→30:70→100:0, v/v)], 共得到5个组分(Fr.1~Fr.5)。Fr. 1通过Toyopearl HW-40和Sephadex LH-20柱色谱, 等度洗脱[甲醇-水(50:50, v/v)], 得到Fr.1-1~Fr.1-3。Fr.1-2通过ODS柱色谱进行甲醇-水(0:100→10:90→20:80 →30:70→40:60→100:0, v/v)梯度洗脱, 得到Fr.1-2-1~Fr.1-2-6。Fr.1-2-3 (0.53 g)经半制备液相[甲醇-水(23:77, v/v)]分离纯化得到化合物1 (6.93 mg)、2 (3.61 mg)和3 (8.15 mg)。
化合物1  白色粉末(甲醇)。$\left[ \alpha \right]_{\rm{D}}^{20}$ -6.975 (c 0.69, CH3OH); UV λmax (CH3OH)/nm (logε): 221 (1.76)、270 (0.34)、280 (0.33)、289 (0.26); IR νmax/cm-1: 3 604、3 165、2 728、2 460、1 614、1 456、1 385、1 315、1 084、992、805、738、700等; HR-TOF-MS给出分子离子峰m/z: 267.110 0 [M+Na]+ (Calcd. C14H16N2O2, 267.110 3); 1H NMR (500 MHz, DMSO-d6)和13C NMR (125 MHz, DMSO-d6)数据见表 1
化合物2  白色粉末(甲醇)。ESI-MS m/z: 267.110 9 [M+Na]+1H NMR (DMSO-d6, 500 MHz) δ: 11.03 (1H, s, -NH), 7.43 (1H, d, J = 7.8 Hz, H-10), 7.32 (1H, d, J = 8.1 Hz, H-13), 7.08 (1H, t, J = 7.7 Hz, H-12), 7.00 (1H, t, J = 7.3 Hz, H-11), 4.47 (1H, d, J = 6.4 Hz, H-3), 3.58 (1H, dd, J= 11.8, 4.6 Hz, H-7a), 3.13 (1H, dd, J = 16.0, 4.1 Hz, H-7b), 2.75 (1H, m, H-6), 1.58 (3H, s, H-15); 13C NMR (DMSO-d6, 125 MHz) δ: 169.6 (C-5), 136.3 (C-14), 132.5 (C-2), 126.2 (C-9), 121.2 (C-12), 118.8 (C-11), 117.9 (C-10), 111.2 (C-13), 106.8 (C-8), 57.6 (C-6), 48.9 (C-3), 23.4 (C-7), 17.1 (C-15)。以上数据与文献[8]报道的ginsenine基本一致。
化合物3  白色粉末(甲醇)。ESI-MS m/z: 255.110 9 [M+Na]+1H NMR (CD3OD-d4, 500 MHz) δ: 7.47 (1H, d, J = 7.9 Hz, H-9), 7.33 (1H, d, J = 8.1 Hz, H-12), 7.12 (1H, t, J = 8.0 Hz, H-10), 7.03 (1H, t, J = 7.8 Hz, H-11), 4.69 (1H, d, J = 6.2 Hz, H-3), 3.94 (1H, dd, J = 11.5, 4.5 Hz, H-5), 3.43 (1H, dd, J = 16.3, 4.4 Hz, H-6a), 3.02 (1H, t, J = 13.1 Hz, H-6b), 1.73 (3H, s, H-14); 13C NMR (CD3OD-d4, 125 MHz) δ: 173.1 (-COOH), 138.6 (C-13), 131.5 (C-2), 127.5 (C-8), 123.3 (C-9), 120.5 (C-12), 119.2 (C-10), 112.3 (C-11), 107.9 (C-7), 59.8 (C-5), 51.1 (C-3), 24.4 (C-6), 17.2 (-CH3)。以上数据与文献[9]报道的(1S, 3S)-1-甲基-1, 2, 3, 4-四氢-β-咔啉-3-羧酸基本一致。
将处于对数生长期PC-12细胞按每孔4×104个细胞、每孔200 μL接种于96孔培养板内, 24 h后, 分为正常组、模型组(20 μmol·L-1 Aβ25-35)及化合物不同浓度(20 μmol·L-1 Aβ25-35 + 5、10 μmol·L-1化合物)给药组。继续培养24 h, MTT法检测细胞活力[10]
  • 中央引导地方科技发展专项:河南道地大宗药材种质评价及集约化种植与示范(14204349)
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doi: 10.16438/j.0513-4870.2018-0211
  • 接收时间:2018-03-12
  • 首发时间:2026-01-15
  • 出版时间:2018-06-12
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  • 收稿日期:2018-03-12
  • 修回日期:2018-03-30
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中央引导地方科技发展专项:河南道地大宗药材种质评价及集约化种植与示范(14204349)
作者信息
    1.河南中医药大学, 河南 郑州 450046
    2.呼吸疾病诊疗与新药研发河南省协同创新中心, 河南 郑州 450046

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* 冯卫生, Tel/Fax: 86-371-60190296, E-mail:
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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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