Tricalysiosides P-U: Ent-kaurane Glucosides and a Labdane Glucoside from Leaves of Tricalysia dubia OHWI
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- Otsuka Hideaki
- Graduate School of Biomedical Sciences, Hiroshima University
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- Shitamoto Junko
- Graduate School of Biomedical Sciences, Hiroshima University
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- He Dong-Hui
- Graduate School of Biomedical Sciences, Hiroshima University
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- Matsunami Katsuyoshi
- Graduate School of Biomedical Sciences, Hiroshima University
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- Shinzato Takakazu
- Subtropical Field Science Center, Faculty of Agriculture, University of the Ryukyus
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- Aramoto Mitsunori
- Iriomote Station, Tropical Biosphere Research Center, Unuversity of the Ryukyus
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- Takeda Yoshio
- Faculty of Integrated Arts and Sciences, The University of Tokushima
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- Kanchanapoom Tripetch
- Department of Pharmaceutical Botany and Pharmacognosy, Faculty of Pharmaceutical, Khon Kaen University
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Abstract
Further extensive isolation work on the 1-BuOH-soluble fraction of a MeOH extract of Tricalysia dubia afforded five new ent-kaurane glucosides (4—8) and one new labdane glucoside (9), together with a known megastigmane glucoside, sammangaoside B (1), and monoterpene glucosides (2, 3). The structures of the new compounds were elucidated by analyses of one- and two-dimensional NMR spectroscopic data. The absolute configuration of the 9-position of sammangaoside B was revised to S and its total stereochemistry was established by the modified Mosher's method.
Journal
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- Chemical and Pharmaceutical Bulletin
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Chemical and Pharmaceutical Bulletin 55 (11), 1600-1605, 2007
The Pharmaceutical Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001204169964672
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- NII Article ID
- 110006437258
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- NII Book ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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- NDL BIB ID
- 8965366
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed