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Two Novel Norwithasteroids with Unusual Six- and Seven-Membered Ether Rings in Side Chain from Flos Daturae
Joint Authors
Xia, Yong-Gang
Wang, Qiu-Hong
Yang, Bing-You
Kuang, Hai-Xue
Wang, Yan-Yan
Source
Evidence-Based Complementary and Alternative Medicine
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-03-27
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Chemical investigation of 50% ethanol eluate fraction of macroporous resin for the flower of Datura metel L.
collected in Jiangsu province of China resulted in the isolation of two novel naturally occurring norwithasteroids, baimantuoluoline I (1) and baimantuoluoside J (2).
Their structures were elucidated as 5α, 6β, 12β-trihydroxy-1-oxo-2-en-ergosta-21,24;22,29-diepoxy-26-carboxylic acid (1) and 5α, 6β, 12β, 25-tetrahydroxy-1-oxo-2-en-ergosta-21,24;22,29-diepoxy-26-carboxylic acid (2) on the basis of extensive spectroscopic analysis, including 1D, 2D-NMR, and HR-ESI-MS.
According to the literatures, this study represents the first report of the norwithasteroids in the side chain with unusual six- and seven-membered ether rings instead of those with an unmodified skeleton (δ-lactone or δ-lactol side chain) and a modified skeleton (γ-lactone or γ-lactol side chain) in the family of withanolides.
Meanwhile, compounds 1 and 2 were evaluated for their immunosuppressive activity against mice splenocyte proliferation in vitro.
American Psychological Association (APA)
Yang, Bing-You& Xia, Yong-Gang& Wang, Yan-Yan& Wang, Qiu-Hong& Kuang, Hai-Xue. 2013. Two Novel Norwithasteroids with Unusual Six- and Seven-Membered Ether Rings in Side Chain from Flos Daturae. Evidence-Based Complementary and Alternative Medicine،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-465087
Modern Language Association (MLA)
Yang, Bing-You…[et al.]. Two Novel Norwithasteroids with Unusual Six- and Seven-Membered Ether Rings in Side Chain from Flos Daturae. Evidence-Based Complementary and Alternative Medicine No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-465087
American Medical Association (AMA)
Yang, Bing-You& Xia, Yong-Gang& Wang, Yan-Yan& Wang, Qiu-Hong& Kuang, Hai-Xue. Two Novel Norwithasteroids with Unusual Six- and Seven-Membered Ether Rings in Side Chain from Flos Daturae. Evidence-Based Complementary and Alternative Medicine. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-465087
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-465087