A new tetrastilbene named carasinol D (1) was isolated from the roots of Caragana sinica. Its structure was elucidated by spectroscopic analysis. Compound 1 was obtained from carasinol B (2) by an acid-catalyzed conversion.

中文翻译：

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柠条中的一种新的四苯乙烯

从柠条（Caragana sinica）的根中分离出一种名为carasinol D（1）的新四苯乙烯。通过光谱分析阐明了其结构。化合物1是通过酸催化的转化从卡拉丁醇B（2）获得的。