Saponins from leaves of Kalopanax pictus (Thunb.) Nakai, harigiri: Structures of kalopanax-saponins JLa and JLb.
- 1 January 1990
- journal article
- Published by Pharmaceutical Society of Japan in CHEMICAL & PHARMACEUTICAL BULLETIN
- Vol. 38 (4) , 1087-1089
- https://doi.org/10.1248/cpb.38.1087
Abstract
From leaves of Lalopanax pictus (THUNB) NAKAI., collected in Japan, two new saponins named kalopanax-saponins JLa (4) and JLb (5) were isolated together with three known saponins, kalopanax-saponins A (1) and B (2) and kizuta saponin K11 (3). On the basis of chemical and spectral data, the structures of these new saponins were concluded to be as follows : 4 : 3-0-α-arabinopyranosyl-(1→2)-α-rhamnopyranosyl hederagenin 28-O-(2-O-acetyl-α-rhamnopyranosyl)-(1→4)-(6-O-acetyl-β-glucopyranosyl)-(1→6)-β-glucopyranosyl ester; 5 : 3-O-α-arabinopyranosyl-(1→2)-α-rhamnopyranosyl hederagenin 28-O-(3-O-acetyl-α-rhamnopyranosyl)-(1→4)-(6-O-acetyl-β-glucopyranosyl)-(1→6)-β-glycopyranosyl ester.Keywords
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