Crotalionosides A-C, Three New Megastigmane Glucosides, Two New Pterocarpan Glucosides and a Chalcone C-Glucoside from the Whole Plants of Crotalaria zanzibarica
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- Shitamoto Junko
- Department of Pharmacognosy, Graduate School of Biomedical Sciences, Hiroshima University
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- Matsunami Katsuyoshi
- Department of Pharmacognosy, Graduate School of Biomedical Sciences, Hiroshima University
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- Otsuka Hideaki
- Department of Pharmacognosy, 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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- Takeda Yoshio
- Faculty of Pharmacy, Yasuda Women's University
Bibliographic Information
- Other Title
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- Crotalionosides A–C, three new megastigmane glucosides, two new pterocarpan glucosides amd a chalcone C-glucoside from the whole plants of Crotalaria zanzibarica
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Abstract
From a 1-BuOH-soluble fraction of the MeOH extract of the leaves of Crotalaria zanzibarica collected in the Okinawa Islands, three new megastigmane glucosides, named crotalionosides A—C, two new pterocarpan glucosides and a chalcone C-glucoside were isolated together with two known flavonoid glycosides and one known megastigmane glucoside. The structures of the new compounds were elucidated by a combination of spectroscopic analyses. The absolute configurations of allenic megastigmane glucosides were determined by application of the modified Mosher's method. Those of the allenic moieties were determined by interpretation of the circular dichroism (CD) spectra of the reduction products derived from citrosides A and B. The aglycones of pterocarpan glucosides were found to be melilotocarpan B and the absolute structure of the chalcone C-glucoside was determined by comparison of the CD spectral behavior with the reported values.
Journal
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- Chemical and Pharmaceutical Bulletin
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Chemical and Pharmaceutical Bulletin 58 (8), 1026-1032, 2010
The Pharmaceutical Society of Japan
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Details 詳細情報について
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- CRID
- 1390001204173122176
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- NII Article ID
- 130000299809
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- NII Book ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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- NDL BIB ID
- 10764030
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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