引用本文:
Xiu Wei YANG, Jing ZHAO, Yu Xin CUI, Li He ZHANG. A Pair of New Geometrically Isomeric Triterpenoid Saponins from the Seeds of Aesculus chinensis[J]. Chinese Chemical Letters,
1999, 10(11): 925-928.
Citation: Xiu Wei YANG, Jing ZHAO, Yu Xin CUI, Li He ZHANG. A Pair of New Geometrically Isomeric Triterpenoid Saponins from the Seeds of Aesculus chinensis[J]. Chinese Chemical Letters, 1999, 10(11): 925-928.
Citation: Xiu Wei YANG, Jing ZHAO, Yu Xin CUI, Li He ZHANG. A Pair of New Geometrically Isomeric Triterpenoid Saponins from the Seeds of Aesculus chinensis[J]. Chinese Chemical Letters, 1999, 10(11): 925-928.
A Pair of New Geometrically Isomeric Triterpenoid Saponins from the Seeds of Aesculus chinensis
摘要:
Two new triterpenoid saponins were isolated from the seeds of Aesculus chinensis by preparative HPLC.On the basis of chemical evidence and spectral data, their structures were established as 21β-tigloyl-28-acetylprotoaescigenin 3β-0-[β-D-xylopyranosyl (1→2)] [β-D-glucopyranosyl (1→4)]-β-D-glucopyranosiduronic acid (isoescin Ⅱa, 1) and 21β-tigloyl-28-acetylprotoaescigenin 3β-0-[β-D-xylopyranosyl (1→2)] [β-D-glucopyranosyl (1→4)]-β-D-glucopyranosiduronic acid (isoescin 11b, 2), which are a pair of geometrical isomers.
English
A Pair of New Geometrically Isomeric Triterpenoid Saponins from the Seeds of Aesculus chinensis
Abstract:
Two new triterpenoid saponins were isolated from the seeds of Aesculus chinensis by preparative HPLC.On the basis of chemical evidence and spectral data, their structures were established as 21β-tigloyl-28-acetylprotoaescigenin 3β-0-[β-D-xylopyranosyl (1→2)] [β-D-glucopyranosyl (1→4)]-β-D-glucopyranosiduronic acid (isoescin Ⅱa, 1) and 21β-tigloyl-28-acetylprotoaescigenin 3β-0-[β-D-xylopyranosyl (1→2)] [β-D-glucopyranosyl (1→4)]-β-D-glucopyranosiduronic acid (isoescin 11b, 2), which are a pair of geometrical isomers.
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Key words:
- Aesculus chinensis;isoescin Ⅱa and Ⅱb
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