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Two New Lanostane-type Triterpenoids from Mulgedium tataricum

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Chinese Chemical Letters 2006年第2期17卷 204-206页

作者： Xiao Xiong WANG zhong jian jia College of Chemistry and Chemical Engineering National Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000

Two new triterpenoids, lanost-9（11）, 23Z（24）-dicnc-3β, 25-diol （1） and lanost-9（11）, 25- diene-3β, 24-diol （2） were isolated from Mulgedium tataricum L. Their structures wcrc elucidated by spectral methods.

关键词： Mulgedium tataricum Compositae lanostane-type triterpenoid.

Two New Eremophilane Sesquiterpenes from Cacalia ainsliaeflora

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Chinese Chemical Letters 2001年第7期12卷 601-602页

作者： Man Jun MAO zhong jian jia Department of Chemistry National Laboratory of Applied Organic ChemistryLanzhou UniversityLanzhou 730000

Two new eremophilane sesquiterpenes 3β-angeloyloxy-8α-hydroxy-6β-methoxy eremophil-7 (11), 9 (10)-dien-8, 12-olide (1) and 3β-angeloyloxy-6β, 8α-dihydroxy-eremophi-7 (11), 9 (10)-dien-8, 12-olide (2) were isolat... 详细信息

关键词： Cacalia ainsliaeflora Compositae eremophilane sesquiterpene

A New Xanthanolide from Carpesium longifolium

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Chinese Chemical Letters 2003年第5期14卷 483-484页

作者： Chao YANG Meng Chun YE zhong jian jia Department of Chemistry National Laboratory of Applied Organic ChemistryLanzhou UniversityLanzhou 730000

A new xanthanolide was isolated from the aerial parts of Carpesium longifolium. Its structure was elucidated as 1, 4-epoxy-5?hydroxy-10酘-xantha-11(13)-en-12, 8?olide by spectral methods (HRMS, 1D and 2D NMR).

关键词： Carpesium longifolium Compositae xanthanolide.

Two New Sesquiterpenes from Inula japonica

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Chinese Chemical Letters 2003年第5期14卷 485-486页

作者： Chao YANG Peng Fei WANG zhong jian jia Department of Chemistry National Laboratory of Applied Organic ChemistryLanzhou UniversityLanzhou 730000

Two new sesquiterpenes were isolated from the aerial parts of Inula japonica. Their structures were elucidated as 1-hydroxy-8-acetoxycostic acid methyl ester and 1-hydroxy-8-acetoxyisocostic acid methyl ester by spec... 详细信息

关键词： Inula Japonica Compositae sesquiterpene.

Two New Sesquiterpenes from Ligularia macrophylla

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Chinese Chemical Letters 2005年第9期16卷 1220-1222页

作者： Tong SHEN Wei Dong XIE zhong jian jia College of Chemistry and Chemical Engineering State key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000

Two new eremophilane sesquiterpenes, 15β-formic ether-6-oxo-furanoeremophilane （1） and 6α, 15β-epoxy eremophila-7（11）-en-8α, 12-olide （2） were isolation from the roots of Ligularia macrophylla. Their structu... 详细信息

关键词： Ligularia macrophylla Compositae eremophilane sesquiterpene

Two New Norsesquiterpenes from Ixeris polycephala

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Chinese Chemical Letters 2006年第7期17卷 913-915页

作者： Yi Feng HAN Kun GAO zhong jian jia State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000

The chemical investigation of Ixeris polycephala afforded two new norsesquiterpenes, named as ixerols A and B （1-2）. Their structures were established based on spectroscopic methods including 2D NMR experiments. The... 详细信息

关键词： Ixeris polycephala Compositae ixerols A and B norsesquiterpene.

Two New Eremophilenolides from Ligularia sagitta

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Chinese Chemical Letters 2002年第10期13卷 963-964页

作者： Xu Qin LI Kun GAO zhong jian jia College of Chemistry and Chemical Engineering National Laboratory of Applied Organic ChemistryLanzhou UniversityLanzhou 730000

Chemical investigation of *** afforded two new cremophilenolides, which were identified as 6beta-angeloyloxy-10beta-hydroxy-8beta-methoxy-cremophil-7(11)-en-12, 8alpha-olide (1) and 6beta, 8beta-dimethoxy-10beta-hydroxy-eremophil-7(11)-en-12, 8alpha-olide (2). Their structures were established by spectroscopic methods including 2D NMR experiments.

关键词： Ligularia sagitta Compositae eremophilenolide sesquiterpene.

A New Sesquiterpene from Saussurea parviflora

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Chinese Chemical Letters 2002年第8期13卷 752-753页

作者： zhong Duo YANG Shuo LI Cheng Shan YUAN zhong jian jia Department of Chemistry National Laboratory of Applied Organic chemistryLanzhou University Lanzhou 730000

A new sesquiterpene: 11,12,13-trihydroxy-4(15),7(8)-eudesmdien-9-one was isolated from Saussurea parviflora. The structure was elucidated on the basis of spectral evidence.

关键词： Composite Saussurea parviflora eudesmane sesquiterpene.

Two New Antibacterial Iridoids from Patrinia rupestris

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Chinese Chemical Letters 2006年第3期17卷 337-340页

作者： Xiu Ping YANG Cheng Shan YUAN zhong jian jia State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000

Two new iridoids （1 and 2） were isolated from the roots of Patrinia rupestris （Pail.） Juss. Their structures were elucidated by spectroscopic methods. Compounds 1 and 2 exhibited strong antibacterial activities ag... 详细信息

关键词： Patrinia rupestris Valerianaceae iridoids antibacterial activity.