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A New Diterpene from Spiraea japonica var. ovalifolia

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Chinese Chemical Letters 2003年第4期14卷 383-384页

作者： Guo Ying ZUO hong ping he Bin Gui WANG Xin hong Yi Ming HU Xiao Jiang HAO The State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of BotanyChinese Academy of SciencesKunming 650204 Kunming General Hospital Kunming 650032

A new diterpenoid, 15-O-acetylspiraminol (1), was isolated from the aerial parts of Spireae japonica L. f. var. ovalifolia. The structure was charaterized mainly based on spectral analysis.

关键词： Rosaceae Spireae japonica L. f. var. ovalifolia diterpenoids.

A New Benzosesquiterpenoid Dimer from Polyalthia cheliensis Hu

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Chinese Chemical Letters 2001年第7期12卷 617-618页

作者： Wei Ming ZHU Xin hong Yue Mao SheN Bi Tao ZHAO hong ping he Xiao Jiang HAO Laboratory of Phytochemistry Kunming Institute of BotanyChinese Academy of SciencesKunming 650204 Department of Chemistry Yunnan Normal UniversiteKunming 650092

A new benzosesquiterpenoid dimer, 3 ' ,3 ' ' ' -bispolycerasoidol (1), along with its monomer, polycerasoidol, were isolated from the dried leaves of Polyalthia cheliensis Hu. The structure of 1 was established by spe... 详细信息

关键词： Polyalthia cheliensis Annonaceae bispolycerasoidol benzosesquiterpenoid

Spiramide, a New Diterpene Amide from the Roots of Spiraea japonica var. acuta

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Chinese Chemical Letters 2000年第9期11卷 789-792页

作者： Yue Mao SheN hong ping he Yong Sheng ZHANG Bin Gui WANG Xiao Jiang HAO Laboratory of Phytochemistry Kunming Institute of BotanyChinese Academy of SciencesKunming 650204 Department of Plant Biotechnology Kunming Institute of BotanyChinese Academy of SciencesKunming 650204 Chinese Medical College of Yunnan Province Kunming 650031

Chemical investigation on the neutral fraction of the ethanol extract from the roots of Spiraea japonica var. acuta has resulted in the isolation of one new diterpene amide, spiramide (1). Structure elucidation for 1 ... 详细信息

关键词： Spiraea japonica var. acuta spiramide

New Diterpenoid Alkaloids from Spiraea japonica var. Ovalifolia

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Chinese Chemical Letters 2001年第2期12卷 147-150页

作者： Guo Ying ZUO hong ping he Xin hong Wei Ming ZHU Yi Ming HU Xiao Sheng YANG Xiao Jiang HAO Laboratory of Phytochemistry Kunming Institute of BotanyChinese Academy of SciencesKunming 650204 Kunming 43 Hospital PLAKunming 650032 The Key Laboratory of Chemistry for Natural Products ofGuizhou Province and Chinese Academy of Sciences Guiyang 550002

Five new diterpenoid alkaloids. 19-O-deethlyspiramine N (1), deacetylspiramine S (2), spiramidine A (3), spiramidine B (4) and deacetylspiramine F (5) were isolated from the aerial parts of Spirae japonica L. f. var o... 详细信息

关键词： Rosaceae Spireae japonica L. f. var. ovalifolia diterpenoid alkaloids

Two New Diterpene Alkaloids from the Roots of Spiraea japonica ***

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Chinese Chemical Letters 2001年第1期12卷 67-68页

作者： hong ping he Yue Mao SheN Xiao Sheng YANG Bin Gui WANG Ling LI Xiao Jiang HAO Laboratory of Phytochemistry Kunming Institute of Botanythe Chinese Academy of SciencesKunming 650204 The Key Laboratory of Chemistry for Natural Products of Guizhou Provence and the Chinese Academy of Sciences

Chemical investigation on the ethanol extract from the roots of Spiraea japonica var. acuta resulted in the isolation of two new diterpene alkaloids named spiratines A and B (1-2), respectively.

关键词： Spiraea japonica var.acuta diterpene alkaloids spiratine A spiratine B.

Three New Coumarins from Micromelum integerrimum

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Chinese Chemical Letters 2001年第7期12卷 603-606页

作者： hong ping he Yun ZOU Yue Mao SheN Xiao Yan HAO Guo Yin ZUO Xiao Jiang HAO Laboratory of Phytochemistry Kunming Institute of BotanyChinese Academy of SciencesKunming 650204 Department of Medicinal Chemistry Guiyang Medical CollegeGuiyangGuizhou 550004 The Kcy Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences Guiyang 550002.

Three derivatives of micromelin, named hydramicromelins A-C (1-3), were isolated from the aerial part of Micromelum integerrimum (Buch.-Ham) Roem., respectively. Hydramicromelins A-C (1-3) were epimers which possessed the same plane structure and molecular formula. Their structures were elucidated based on MS and NMR data. The relative configurations of 1-3 were established by NOE analysis.

关键词： Micromelum integerrimum Rutaceae coumarin micromelin hydramicromelins A-C

A Novel Dimeric Coumarin from Clausena lenis

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Chinese Chemical Letters 2003年第11期14卷 1150-1153页

作者： hong ping he Shun Ting CheN Yue Mao SheN Chang Xiang CheN Yi Bin ZHAO Xiao Jiang HAO The State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of BotanyChinese Academy of SciencesKunming 650204 The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences Guiyang 550002

A novel dimeric coumarin (1), a dimeric of seselin named diseselin A, was isolated from the aerial part of Clausena lenis. The structure was elucidated based on the MS, 1D and 2D NMR data.

关键词： Clausena lenis coumarin diseselin A seselin dimer.

A new isoflavonolignan from Pueraria alopecuroides Craib

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Chinese Chemical Letters 2007年第3期18卷 297-299页

作者： Zhen Zhang Guang Ming Liu Yue Hu Wang Chun Shun Li yan Li Ren Huai Xiao XJao Jang Hao hong ping he State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Science Kunming 650204 China College of Pharmaceutical Sciences Dali University Dali 677100 China

A new isoflavonolignan has been isolated from the Pueraria alopecuroides Craib. The structure was elucidated by the combination of 1D, 2D NMR analysis and mass spectrometry.

关键词： Pueraria alopecuroides Craib Chemical constituents Isoflavonolignan

Detection of Structural Damage Through Changes in Frequency

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Wuhan University Journal of Natural Sciences 2005年第6期10卷 1069-1073页

作者： ZHU hong-ping he Bo CheN Xiao-qiang School of Civil Engineering and Mechanics Huazhong University of Science and Technology Wuhan 430074 Hubei China

Among all the structural vibration characteristics, natural frequencies are relatively simple and accurate to measure, and provide the structural global damage informalion. In this paper, the feasibility of using only natural frequencies to identify structural damage is exploited by adopting two usual approaches, namely, sensitivity analysis and neural networks. S, ome aspects of damage detection such as the problem of incomplete modal test data and robustness of detection are considered. A laboratory tested 3 storey frame is used to demonstrate the possibility of frequency-based damage detection techniques. The numerical results show that the damaged element can be correctly localized and the content of damage can be identified with relatively high degree of accuracy by using the changes in frequencies.

关键词： damage detection changes in frequency sensitivity analysis neural network