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Efficient synthesis of the C/D rings of atisine-type C_(20)-diterpenoid alkaloids

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Chinese Chemical Letters 2012年第12期23卷 1378-1380页

作者： De Lin Chen feng peng wang Department of Chemistry of Medicinal Natural Products West China College of PharmacySichuan University

A bicyclo[2.2.2]octane C/D ring system, with a lactonic ring at C-8 and C-9, of the atisine-type C20-diterpenoid alkaloids, was successfully synthesized, using an oxidative dearomatization/intramolecular Diels-Alder r... 详细信息

关键词： C20-diterpenoid alkaloids Oxidative dearomatization/intrarnolecular Diels-Alder reaction

Growth of Aligned Carbon Nanotubes on Large Scale by Methane Decomposition with Deactivation Inhibitor

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Journal of Natural Gas Chemistry 2007年第4期16卷 382-388页

作者： Hao Yu Zhili Li Cheng Zhang feng peng Hongjuan wang School of Chemical and Energy Engineering South China University of Technology Guangzhou 510650 Guangdong China

The effects of additives containing iron or nickel during chemical vapor deposition （CVD） on the growth of carbon nanotubes （CNTs） by methane decomposition on Mo/MgO catalyst were investigated. Ferrocene and nickel nitrate were introduced as deactivation inhibitors by in-situ evaporation during CVD. The precisely controlled in-situ introduction of these inhibitors increased the surface renewal of catalyst, and therefore prevented the catalyst from deactivation. Using this method, aligned multi-walled CNTs with parallel mesopores can be produced on a large scale.

关键词： aligned carbon nanotubes chemical vapor deposition deactivation inhibitor methane decomposition Mo/MgO catalyst ferrocene nickel nitrate

Three new C_(20)-diterpenoid alkaloids from Delphinium anthriscifolium ***

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Chinese Chemical Letters 2009年第6期20卷 698-701页

作者： Xiao Yu Liu Qiao Hong Chen feng peng wang Department of Chemistry of Medicinal Natural Products West China College of Pharmacy Sichuan University Chengdu 610041 China

Three new C20-diterpenoid alkaloids, designated as anthriscifolmines A-C （1-3）, together with two known alkaloids denudatine and delgramine, were isolated from the whole herb of Delphinium anthriscifolium var. savat... 详细信息

关键词： Delphinium anthriscifolium vat. savatieri C20-diterpenoid alkaloid Anthriscifolmines A-C

Two New C_(19)-Diterpenoid Alkaloids from Delphinium davidii Franch

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Chinese Chemical Letters 2006年第11期17卷 1473-1476页

作者： Xiao Xia LIANC Dong Lin CHEN feng peng wang Department of Chemistry of Medicinal Natural Products West China College of Pharmacy Sichuan University Chengdu 610041

Two new C19-diterpenoid alkaloids, davidisines A （1） and B （2） along with thirteen known alkaloids were isolated from the whole herb of Delphinium davidii Franch. Their structures were established by spectral meth... 详细信息

关键词： Delphinium davidii Franch. C19-diterpenoid alkaloids davidisine A davidisine B

A convergent approach to the tetracyclic core of atisane diterpenes

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Chinese Chemical Letters 2016年第1期27卷 59-62页

作者： De-Lin Chen feng-peng wang Xiao-Yu Liu Department of Chemistry of Medicinal Natural Products West China College of Pharmacy Sichuan University

Atisane diterpenes are biologically interesting natural products. We report here a convergent approach to construct the tetracyclic core of the atisane skeleton. The two segments were assembled through a Wittig reacti... 详细信息

关键词： Atisane diterpenes Wittig Intramolecular Aldol Tetracycle

~1H–^(15)N HMBC spectra of C_(18)-diterpenoid alkaloids

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Chinese Chemical Letters 2015年第6期26卷 804-806页

作者： Qian Mei Yao-Nan wang Ming Zhao Xiao-Yu Liu Shi-Qi peng feng-peng wang Department of Chemistry of Medicinal Natural Products West China College of PharmacySichuan University Medical Experiment and Test Center Capital Medical University College of Pharmaceutical Sciences Capital Medical University

The normally underused ^1H-^15N HMBC spectra of thirteen C18-diterpenoid alkaloids have been determined for the first time. As a result, the significant effects of the substituents of nitrogen atoms, the conformations... 详细信息

关键词： Diterpenoid alkaloid ^15N NMR ^1H-^15N HMBC

On the Famous Traditional Chinese Medicine “Fu Zi”: Discovery, Research, and Development of Cardioactive Constituent Mesaconine

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Natural Products and Bioprospecting 2021年第1期11卷 15-20页

作者： feng-peng wang Ruo-Bing Chao Department of Chemistry of Medicinal Natural Products West China College of PharmacySichuan UniversityChengdu 610041People’s Republic of China

This review summarizes the process of the discovery,research,and development of a cardioactive component,mesaconine,from the lateral roots of Aconitum carmichaelii(“Fu Zi”).To date,pre-clinical showed that mesaconin... 详细信息

关键词： Fu Zi Aconitum carmichaelii Diterpenoid alkaloid Mesaconine

Rapid construction of the tricyclic cores of the abietane- and icetexane-type diterpenoids

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Chinese Chemical Letters 2011年第7期22卷 774-776页

作者： De Lin Chen Xiao Yu Liu Hang Cheng feng peng wang Department of Chemistry of Medicinal Natural Products West China College of Pharmacy Sichuan University Chengdu 610041 China

A short synthesis of the tricyclic 6-6-6 and 6-7-6 ring systems of the abietane- and icetexane-type diterpenoids from a common intermediate is presented, using alkylation and acid-catalyzed cyclization as key steps.

关键词： Abietanes Icetexanes Alkylation Cyclization

A Diterpene Endoperoxide from Microtoena insuavis （Hance） Prain ex Dunn

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Journal of Integrative Plant Biology 2006年第5期48卷 613-616页

作者： Chong-Qian Li Bo-Gang Li feng-peng wang Guo-Lin Zhang Chengdu Institute of Biology the Chinese Academy of Sciences Chengdu 610041 China West China School of Pharmacy Sichuan University Chengdu 610041 China

A novel endoperoxlde diterpene, 7a-hydroxy-abieta-8（14）-en-18-oi 9α,13α-endoperoxide （compound 1）, was isolated from the stems of Microtoena insuavis （Hance） Prain ex Dunn, along with 4,4＇-dlhydroxytruxillic acid （compound 2）, gallic acid （compound 3）, ellaglc acid （compound 4）, 3-O-methylellaglc acid 3＇-O-α- rhamnopyranoslde （compound 5）, 3＂＇-O-methylcrenatoslde （compound 6）, crenatoslde （compound 7）, aptgenin （compound 8）, succinic acid （compound 9）, β-sitosterot （compound 10）, and β-daucosterol （compound 11）. The structures of these compounds were elucidated on the basis of spectral evidence.

关键词： crenatoside diterpene endoperoxide 3'"-O-methylcrenatoside Microtoena insuavis.