A new cerebroside (1), along with three known steroidal compounds, β-sitosterol (2), daucosterol (3), and stigmasterol (4), were isolated from the roots of Gynura procumbens (Lour.) Merr. The structure of 1 was determined to be 1-O-β-D-glucopyranosyl-(2R,6E,9R,12E)2-[(2′R)-2′-hydroxypentacosaneoyl-amino]-6,12-heptadecene-1,9-diol on the basis of chemical and spectroscopic evidence.

中文翻译：

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Gynura procumbens 根中的新脑苷脂

从 Gynura procumbens (Lour.) Merr 的根中分离出一种新的脑苷脂 (1) 以及三种已知的甾体化合物 β-谷甾醇 (2)、豆蔻甾醇 (3) 和豆甾醇 (4)。1 的结构被确定为 1-O-β-D-吡喃葡萄糖基-(2R,6E,9R,12E)2-[(2'R)-2'-hydroxypentacosaneoyl-amino]-6,12-十七烯-基于化学和光谱证据的 1,9-二醇。