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1. (Article ID: 9774)
 
Miyamura M, Nakano K, Nohara T, Tomimatsu T, Kawasaki T
Steroid saponins from Paris polyphylla Sm.-supplement
Chemical and Pharmaceutical Bulletin 30(2) (1982) 712-718
 

Previously, four steroid glycosides (Pa-d) were isolated from the rhizomes of Paris polyphylla SM. and characterized. In a continuation of our studies on this plant, a further five new steroid glycosides (1,2,12,14 and 16) together with three known compounds (13,18 and 19; the latter two have been obtained synthetically as acetyl derivatives) have been isolated and their structures established as follows. 1 and 2: (22ξ,25R)-22-methoxyfurostanol 3,26-O-bisglycosides (proto-type saponins) corresponding to Pa [diosgein 3-O-α-L-ara*fur-(1→4)-[α-L-rha*pyr-(1→2)]-β-D-glc*pyranoside (3)] and Pb [diosgein 3-O-α-L-rha*pyr-(1→4)-α-L-rha*pyr-(1→4)-[α-L-rha*pyr-(1→2)]-β-D-glc*pyranoside (6)], respectively; 12 and 13: pennogenin oligosides having the same sugar moieties as 3 and 6, respectively; 14 and 18: pennogenin derivatives carrying 3-O-α-L-ara*fur-(1→4)-β-D-glc*pyranoside and hexaacetyl 3-O-α-L-rha*pyr-(1→2)-β-D-glc・pyranoside, respectively; 16 and 19: diosgenin derivatives carrying the same sugar moieties as 14 and 18, respectively.

Liliaceae, Paris polyphylla, furostanol glycoside, diosgenin glycoside, pennogenin glycoside, arabinofuranoside

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