Chemical investigation of the dichloromethane extracts of the flowers of Dendranthema grandiflora cv. Yoko Ono afforded a new sesquiterpene lactone, grandiflorolide (1), 1,2-dilinoleoyl-3-linolenoylglycerol (2), a mixture of pseudotaraxasterol (3a), taraxasterol (3b), β-amyrin (3c), α-amyrin (3d), and lupeol (3e) in about 2:1:1:0.5:0.5 ratio, and another mixture of β-sitosterol (4a) and stigmasterol (4b) in about 2:1 ratio. The structure of 1 was elucidated by extensive 1D and 2D NMR spectroscopy, while those of 2–4b were identified by comparison of their NMR data with literature data.

中文翻译：

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来自大花菊花的一种新倍半萜

Dendranthema grandiflora cv.花的二氯甲烷提取物的化学研究。Yoko Ono 提供了一种新的倍半萜内酯、grandiflorolide (1)、1,2-dilinoleoyl-3-linolenoylglycerol (2)、伪蒲公英甾醇 (3a)、蒲公英甾醇 (3b)、β-香树脂醇 (3c)、α-香树脂醇 (2) 的混合物3d) 和羽扇豆醇 (3e) 的比例约为 2:1:1:0.5:0.5，以及另一种 β-谷甾醇 (4a) 和豆甾醇 (4b) 的比例约为 2:1 的混合物。1 的结构通过广泛的 1D 和 2D 核磁共振光谱阐明，而 2-4b 的结构通过核磁共振数据与文献数据的比较来确定。