Studies on the Constituents of Cimicifuga Species.XXVIII.^<1)> Four New Cycloart-7-enol Glycosides from the Underground Parts of Cimicifuga simplex WORMSK
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概要
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Four new cycloart-7-ene triterpenol arabinosides, bugbanosides C-F, were isolated from the underground parts of Cimicifuga simplex WORMSK.(Ranunculaceae). The structures were elucidated as 12β-acetoxy-3β, 15α, -24R, 25-tetrahydroxy-16, 23-dione-cycloart-7-ene 3-O-α-L-arabinopyranoside, 12β-acetoxy-24R, 25-epoxy-3β, 15α-dihydroxy-16, 23-dione-cycloart-7-ene 3-O-α-L-arabinopyranoside, 12β-acetoxy-24R, 25-epoxy-3β-hydroxy-16, 23-dione-cycloart-7-ene 3-O-α-L-arabinopyranoside, and 16, 23R : 16, 24S-diepoxy-3β, 12β, 15α, 25-tetrahydroxy-cycloart-7-ene 3-O-α-L-arabinopyranoside on the basis of spectral and chemical evidence. The circular dichroism(CD)of bugbanosides C-F showed strong negative maxima at 214-217nm due to a cycloart-7-ene system, as well as other cycloart-7-ene triterpenes. The CD data showed to be useful in determining basic skeletons, including absolute stereostructures of cycloart-7-ene triterpenes.
- 公益社団法人日本薬学会の論文
- 2001-04-01
著者
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草野 昭子
Osaka University of Pharmaceutical Sciences
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Kusano Akiko
Osaka University Of Pharmaceutical Sciences
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SHIBANO Makio
Osaka University of Pharmaceutical Sciences
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KUSANO Genjiro
Osaka University of Pharmaceutical Sciences
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Shibata M
Fumakilla Ltd.
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TSUKAMOTO Daisuke
Osaka University of Pharmaceutical Sciences
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Kusano G
Osaka University Of Pharmaceutical Sciences
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Kusano Genjiro
Osaka University Of Phamaceutical Sciences
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Kusano A
Osaka University Of Pharmaceutical Sciences
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