无柄新乌檀中的配糖体(英文)

GLYCOSIDES FROM NEONAUCLEA SESSILIFOLIA

从无柄新乌檀乙醇浸膏的正丁醇部位分离得到 7个已知配糖体化合物 ,经波谱分析为 :喹诺酸 3 O β D 葡萄吡喃糖基 (2 8→ 1) β D 葡萄吡喃糖酯 (1) ,齐墩果酸 (2 8→ 1) β D 葡萄吡喃糖酯 (2 ) ,熊果酸 (2 8→ 1) β D 葡萄吡喃糖酯 (3) ,喹诺酸 3 O β D 葡萄吡喃糖基 (1→ 3) 6 去氧 β 葡萄吡喃糖苷 (4 ) ,齐墩果酸 3 O β D 吡喃木糖基 (1→ 2 ) β D 葡萄吡喃糖基 2 8 O β D 葡萄吡喃糖酯 (5 ) ,番木鳖甙 (6 ) ,7 甲氧基 龙胆苦甙 (7)。这些化合物均为首次从该属中分离得到。

Seven known compounds were isolated from the n-BuOH fraction of the stems of Neonauclea sessilifolia (Roxb.) Merr, and their structures were elucidated by means of spectroscopic method as quinovic acid-3-O-β-D-glucopyranosyl-(28→1)-β-D-glucopyranosyl ester(1),oleanolic acid-(28→1)-β-D-glucopyranosyl ester(2),ursolic acid-(28→1)-β-D-glucopyranosyl ester(3),quinovic acid-3-O-β-D-glucopyranosyl(1→3)-6-deoxy-β-glucopyranoside(4),oleanic acid-3-O-β-D-xylopyranosyl-(1→2)-β-D-glucopyranoside-28-O-β-D-glucopyranosyl ester(5),iridoid loganin(6),7-methoxy-gentiopicroside(7).All of them were isolated from the genus for the first time.