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A New Cycloartane Triterpene Glycoside from Souliea vaginata

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Chinese Chemical Letters 2005年第8期16卷 1047-1049页

作者： Liang ZHOU jun shan yang Guang Zhong TU Institute of Medicinal Plant Development Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100094 Beijing Institute of Microchemistry Research Beijing 100060

A new cycloartane triterpene glycoside was isolated from the rhizome of Souliea vaginata. Its structure was established as 12-deacetyloxy-15α-hydroxy-23-epi-26-deoxyactein by spectroscopic and chemical methods.

关键词： Souliea vaginata ranunculaceae cycloartane triterpene glycosides.

Chemical Constituents of the Roots of Anemone altaica Fisch. ex C. A. Mey.

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Journal of Integrative Plant Biology 2005年第9期47卷 1145-1147页

作者： Zhong-Jie ZOU Yue-Sheng DONG jun-shan yang Institute of Medicinal Plant Development Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100094 China

The roots of Anemone altaica Fisch. ex C. A. Mey. have been used in the treatment of epilepsia, neurasthenia, and arthritis in Chinese folk medicine for a long time. In order to find new and bioactive compounds, the chemical constituents of the roots of A. altaica were investigated and nine compounds were isolated from the EtOH extract of this plant. On the basis of spectroscopic methods, the structures of these compounds were elucidated as 4-（9H-β-carbolin- 1-yl）-4-oxo-butyric acid （1）, carboxymethyl isoferulate （2）, isoferulic acid （3）, cirsiumaldehyde （4）, 5-hydroxy-4-oxo-pentanoic acid （5）, triacontane （6）, palmic acid （7）, β-sitosterol （8）, and daucosterol （9）. Among them, 1 and 2 were new compounds, and 3 and 4 were obtained from this genus for the first time.

关键词： Anemone altaica 4-(9H-β-carbolin-1-yl)-4-oxo-butyric acid carboxymethyl isoferulate chemical constituent cirsiumaldehyde isoferulic acid.

Two new compounds from the stem of Vernonia cumingiana

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Chinese Chemical Letters 2008年第2期19卷 180-182页

作者： Mao Rong Suo jun shan yang Ze Sheng Zhang Institute of Medicinal Plant Development Chinese Academy of Medical Sciences ＆ Peking Union Medical College Beijing 100094 China College of Food Engineering ＆ Biotechnology Tianjin University of Science ＆ Technology Tianjin 300457 China

Two new compounds vemonioside S and vemoniether S were isolated from the stem of Vernonia cumingiana, and their structures were elucidated on the basis of spectroscopic evidences.

关键词： Vernonia cumingiana Vernonioside S Vernoniether S

A New β-Carboline Alkaloid and a New Derivate of Isoferulic Acid from Anemone altaica

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Chinese Chemical Letters 2005年第11期16卷 1484-1486页

作者： Zhong Jie ZOU Yue Sheng DONG jun shan yang Institute of Medicinal Plant Development Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100094

A new β-carboline alkaloid, 4-（9H-β-carbolin-1-yl）-4-oxobutyric acid and a new derivate of isoferulic acid, （E）-3-（3-hydroxy-4-methoxyphenyl）acrylic acid carboxymethyl ester, were isolated from the roots of An... 详细信息

关键词： Anemone altaica β-carboline alkaloid isoferulic acid derivate.

Two New Diterpenes from Helianthus annuus L.

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Chinese Chemical Letters 2006年第1期17卷 45-48页

作者： Mao Rong SUO jun shan yang yang LU Li WU Qi Tai ZHENG Institute of Medicinal Plant Development Chinese Academy of Medical Sciences ＆ Peking Union Medical College Beijing 100094 Institute of Medicinal Materia Chinese Academy of Medical Sciences ＆ Peking Union Medical College Beijing 100050

Two new diterpenes, 2β, 16β-ent-kaurane diol, 15α, 16α-epoxy-17β-al-ent-kaurane- 19-oic acid were isolated from Helianthus annuus L. Their structures were determined by spectroscopic evidences.

关键词： Helianthus annuus diterpene.

Lie Symmetry and Conserved Quantity of Three-Order Lagrangian Equations for Non-conserved Mechanical System

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Communications in Theoretical Physics 2006年第2期45卷 350-352页

作者： MA shan-jun yang Xue-Hui YAN Rong HUANG Pei-Tian College of Physics and Communication Electronics Jiangxi Normal University Nanchang 330027 China

Based on the infinitesimal and one parameter transformation, the problem of Lie symmetry of three-order Lagrangian equations has been studied. Under Lie transformation, the sufficient and necessary condition which kee... 详细信息

关键词： three-order Lagrangian equation Lie symmetry conserved quantity

Chemical Constituents of the Roots of Vernonia cumingiana Benth.

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Journal of Integrative Plant Biology 2005年第8期47卷 1016-1020页

作者： Qing-Hua LIU Jing-Quan YUAN Mao-Rong SUO jun-shan yang Institute of Medicinal Plant Development Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100094 China Guangxi Botanical Garden of Medicinal Plants Nanning 530023 China

To search for new and bioactive constituents from traditional Chinese medicines, a new steroidal saponin, named vernonioside G （1）, was isolated from the roots of Vernonia cumingiana Benth. （Compositae）. The structure of vernonioside G was elucidated using spectral methods, particularly two-dimensional nuclear magnetic resonance analysis. Together with the new compound, eight known compounds were also isolated and identified from the roots of V. cumingiana, among which, VE-1 （2） and 24-methylenelanost-9（11）- en-3β-ol acetate （3） were assigned NMR data for the first time and compound 3 was obtained as a natural product from a plant for the first time.

关键词： Compositae steroidal saponin Vernonia cumingiana vernonioside G.

A Novel Flavonoid Glucoside from Anoectochilus roxburghii （Wall,） Lindl.

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Journal of Integrative Plant Biology 2006年第3期48卷 359-363页

作者： Chun-Nian He Chun-Lan Wang Shun-Xing Guo jun-shan yang Pei-Gen Xiao Institute of Medicinal Plant Development Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100094 China

Eight compounds were isolated from the ethyl acetate- and n-butanol-soluble fractions of the ethanollc extract of the whole plant of Anoectochllus roxburghll（Wali.） Lindi. （Orchidaceee）. On the basis of spectroscopic methods, the structures of these compounds were elucidated as quercetin-7-O-β-D-[6＂-O-（trans-feruloyi）]- giucopyranosids （compound 1）, 8-C-p-HydroxybenzyiquerceUn （compound 2）, isorhamnetin-7-O-β-D- giucopyranoside （compound 3）, isorhamnetin-3-O-β-D-giucopyranoside （compound 4）, kaempferoi-3-O-β-D- giucopyranoside （compound 5）, kaempferoi-7-O-β-D-giucopyranoside （compound 6）, 5-hydroxy-3＇,4＇,7- trimethoxyfiavonoi-3-O-β-D-rutinoside （compound 7）, and isorhamnetin-3-O-β-D-rutinoside （compound 8）. Of the compounds isoisted, compound 1 was a new flavonoid giucoside and exhibited strong scavenging activity against the 1,1-diphenyi-2-picryihydrazyi free radical, whereas the ethanolic extract showed weak activity. Compounds 2-8 were obtained from this family for the first time.

关键词： Anoectochilus roxburghii quercetin-7-O-β-D-[6"-O-(trans-feruloyl)]-glucopyranoside radical-scavenging activity.

A new cassane diterpenoid lactone from the seed of Caesalpinia minax

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Chinese Chemical Letters 2009年第4期20卷 444-446页

作者： Yan Cheng Li Yan Ma Jian Hua Miao Xu Dong Xu Jing Quan Yuan jun shan yang Institute of Medicinal Plant Development Peking Union Medical College and Chinese Academy of Medical Sciences Beijing 100193 People's Republic of China Guangxi Botanical Garden of Medical Plant Nanning 530023 People's Republic of China

A new cassane diterpenoid lactone was isolated from the seed of Caesalpinia minax. On the basis of spectral evidences, its structure was established as 12α-methoxyl, 5α, 14β-dihydroxy-1α, 6α, 7β-triacetoxycass-1... 详细信息

关键词： Caesalpinia Caesalpinia minax Cassane diterpenoid lactone