Details

Autor(en) / Beteiligte

• SHAO, Chun-Jie
• KASAI, Ryoji
• OHTANI, Kazuhiro
• TANAKA, Osamu
• KOHDA, Hiroshi

Titel

Saponins from Leaves of Kalopanax pictus (THUNB.) NAKAI, Harigiri : Structures of Kalophanax-Saponins JLa and JLb

Ist Teil von

• Chemical and Pharmaceutical Bulletin, 1990/04/25, Vol.38(4), pp.1087-1089

Ort / Verlag

The Pharmaceutical Society of Japan

Erscheinungsjahr

1990

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• 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.