Two new lignans from Celastrus flagellaris Rupr

Two new lignans (R-biar)-12-angeloyloxy-6,7,8,9-tetrahydro-1,2,3,13,14-pentamethoxy-7,8-dimethyl-7-dibenzo[a,c]cyclooctenol (1) and (R-biar)-12-benzoyloxy-6,7,8,9-tetrahydro-1,2,3,13,14-pentamethoxy-7,8-dimethyl-7-dibenzo[a,c]cyclooctenol (2) were isolated from the stems of Celastrus flagellaris Rup...

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Bibliographic Details
Published in:Journal of asian natural products research 2012-02, Vol.14 (2), p.159-164
Main Authors: Zhao, Xue-Mei, Guo, Fu-Jiang, Li, Yi-Ming, Zhu, Da-Yuan
Format: Article
Language:English
Subjects:
Biological and medical sciences
Celastraceae
Celastrus
Celastrus - chemistry
Celastrus flagellaris Rupr
chemical structure
Drugs, Chinese Herbal - chemistry
Drugs, Chinese Herbal - isolation & purification
General pharmacology
lignans
Lignans - chemistry
Lignans - isolation & purification
Medical sciences
Molecular Structure
nuclear magnetic resonance spectroscopy
Pharmacognosy. Homeopathy. Health food
Pharmacology. Drug treatments
Plant Stems - chemistry
stems
structure elucidation
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Summary:Two new lignans (R-biar)-12-angeloyloxy-6,7,8,9-tetrahydro-1,2,3,13,14-pentamethoxy-7,8-dimethyl-7-dibenzo[a,c]cyclooctenol (1) and (R-biar)-12-benzoyloxy-6,7,8,9-tetrahydro-1,2,3,13,14-pentamethoxy-7,8-dimethyl-7-dibenzo[a,c]cyclooctenol (2) were isolated from the stems of Celastrus flagellaris Rupr. Their structures were elucidated on the basis of spectroscopic methods including HR-EI-MS, 1D and 2D NMR, HMQC, NOESY, and CD.
ISSN:1477-2213
1028-6020
1477-2213
DOI:10.1080/10286020.2011.641535