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一种来自白凤菜的新脑苷脂。

A new cerebroside from Gynura divaricata.

作者信息

Chen Lei, Wang Jin-Jiang, Zhang Guo-Gang, Song Hong-Tao, Qin Lu-Ping

机构信息

Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.

出版信息

Nat Prod Res. 2009;23(14):1330-6. doi: 10.1080/14786410902836677.

Abstract

A new cerebroside (1) was isolated from the aerial parts of Gynura divaricata DC., along with five known compounds: kaempferol (2), kaempferol 3-O-glucoside (3), kaempferol 3-O-rhamnosyl(1 --> 6)glucoside (4), beta-sitosteryl glucoside-6'-O-heptadecoicate (5) and 2-(1', 2', 3', 4'-tetrahydroxybutyl)-6-(2'', 3'', 4''-trihydroxybutyl)-pyrazine (6), which are isolated for the first time from this species. The structure of 1 was determined to be 1-O-beta-D-glucopyranosyl-(2S, 3S, 4R, 10Z)-2-[(2'R)-2'-hydroxylignocenoyl-amino]-10-octadecene-1,3,4-triol on the basis of chemical and spectroscopic evidence.

摘要

从白子菜地上部分分离得到一个新的脑苷脂(1),以及五个已知化合物:山奈酚(2)、山奈酚3 - O - 葡萄糖苷(3)、山奈酚3 - O - 鼠李糖基(1→6)葡萄糖苷(4)、β - 谷甾醇葡萄糖苷 - 6'- O - 十七烷酸酯(5)和2 -(1',2',3',4'- 四羟基丁基)- 6 -(2'',3'',4'' - 三羟基丁基)- 吡嗪(6),这些化合物均首次从该物种中分离得到。基于化学和光谱证据,确定化合物1的结构为1 - O - β - D - 吡喃葡萄糖基 -(2S,3S,4R,10Z)- 2 - [(2'R)- 2'- 羟基木栓酰氨基] - 10 - 十八碳烯 - 1,3,4 - 三醇。

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