KMID : 0620719980040040268
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Natural Product Sciences 1998 Volume.4 No. 4 p.268 ~ p.273
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Triterpenoid Saponins from Vaccaria segetalis
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Sang, Shengmin
Lao, Aina/Wang, Hongcheng/Chen, Zhongliang/Jun Uzawa/Yasuo Fujimoto
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Abstract
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Two new triterpenoid saponins, named segetoside D and E, have been isolated from the seeds of Vaccaria segetalis. On the basis of chemical reactions and spectral data, structures of segetoside D and E have been established as: 28-O-[¥â-D-xylopyranosyl-(1¡æ4)-¥á-L-rhamnopyranosyl-(1¡æ2)]-[5-O-acetyl-¥á-arabinofuranosyl(1¡æ3)]-[4-O-acetyl-¥â-D-fucopyranosyl]-quillaic acid-3-O-[¥â-D-galactopyranosyl(1¡æ2)]-6-O-methyl ester-¥â-D-glucuronopyranoside and 28-O-[¥â-D-xylopyranosyl-(1¡æ4)-¥á-L-rhamnopyranosyl-(1¡æ2)]-[5-O-acetyl-¥á-arabinofuranosyl(1¡æ3)]-[4-O-acetyl-¥â-D-fucopyranosyl]-quillaic acid -3-O-[¥â-D-galactopyranosyl(1¡æ2)]-6-O-n-butyl ester-¥â-D-glucuronopyranoside, respectively.
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KEYWORD
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