Parisyunnanoside B
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Planta Med. 2009 Mar;75(4):356-63.
Steroidal saponins from the rhizome of Paris polyphylla and their cytotoxic activities.[Pubmed:
19085682 ]
Two new furostanol saponins and one new spirostanol saponin were isolated from the rhizome of Paris polyphylla Smith var. yunnanensis, together with 18 known steroidal saponins.
METHODS AND RESULTS:
The structures of the new steroidal saponins were elucidated as 26-O-beta-D-glucopyranosyl-(25R)-5-ene-furost-3 beta, 17 alpha, 22 alpha, 26-tetrol-3-O-alpha-L-arabinofuranosyl-(1-->4)-[alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranoside (2, parisyunnanoside A), 26-O-beta-D-glucopyranosyl-(25R)-5, 20 (22)-diene-furost-3 beta, 26-diol-3-O-alpha-L-arabinofuranosyl-(1-->4)-[alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranoside (7, Parisyunnanoside B), and (25R)-spirost-5-ene-3 beta, 12 alpha-diol-3-O-alpha-L-rhamnopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-(1-->4)-[alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranoside (13, parisyunnanoside C) by MS and 1 D and 2 D NMR analysis. The isolated compounds were evaluated for their cytotoxicity against HL-60 human promyelocytic leukemia cells.
CONCLUSIONS:
Our results showed that the spirostanol framework of the aglycone and the terminal alpha-L-rhamnopyranosyl with 1-->2 linkage to the sugar chain of saponins at C-3 are essential for their high cytotoxicity, whereas the hydroxy group substitution at C-12 or C-17 of the aglycone causes a reduction in their activity.
《Journal of Jinan University(Natural Science & Medicine Edition)》 2014-01
Chemical constituents of Paris polyphylla var. yunnanensis[Reference:
WebLink]
METHODS AND RESULTS:
Thirteen compounds were obtained from the 30% ethanol eluting fraction of macroporous resin and their structures were elucidated by their spectral data and physicochemical properties,which were identified as calonysterone( 1),glycoside St-J( 2),methyl ester of glycoside St-J( 3),cussonoside B( 4),methyl 3, 4-dihydroxybenzoate( 5),α-ecdysone( 6),20-hydroxyecdysone( 7),pinnatasterone( 8),polyphyllin H( 9),polyphyllin Ⅶ( 10),parisaponin I( 11),Parisyunnanoside B( 12),polyphyllin Ⅱ( 13).
CONCLUSIONS:
Among them,compounds 1- 5 were obtained from the genus Paris for the first time,and 1- 6 were isolated from this plant for the first time.
