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KMID : 0043319970200010076
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Archives of Pharmacal Research
1997 Volume.20 No. 1 p.76 ~ p.79
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Absolute Configuration of β-agarofuran nucleus of euojaponine C by CD exciton chirality method
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Ryu Jae-Ha
Ryu Shi-Yong
Han Yong-Nam
Han Byung-Hoon
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Abstract
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A new celastraceae alkaloid, euojaponine C has been isolated from the methanol extract of the root bark of Euonymus japonica. With the relative stereochemistry of euojaponine C established by NOESY data, the absolute stereochemistry has been determined by circular dichroism (CD) exciton chirality method. The CD of the 2, 5-bis-phenyl benzoate of triacetonide derived from the LiAlH, hydrolysate, euonyminol shows that the configuration of C-2 and C-5 are both R.
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KEYWORD
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Euonymus japonica, Celastraceae, Alkaloid, Euojaponine C, Absolute configuration, CD exciton chirality, NOESY
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