漆树科植物木蜡树(Rhus succedaneaL.)的植物化学研究早有报道。作者在寻找新的植物抗肿瘤剂时发现脱脂的木蜡树核果的乙醇提取物对KB细胞有显著的细胞毒活性(ED_(50)<20μg/ml),进而分离出有效成分扁柏双黄酮(hinokiflavone)的ED_(50)为2.0μg/ml。在此启发下对过去分离出来的许多双黄酮类化合物及 Phytochemical studies of Rhus succedaneae L., a plant of the lacquer family, have long been reported. When searching for a new plant anti-tumor agent, the authors found that the ethanol extract of defatted X. arborescens had significant cytotoxic activity against KB cells (ED_(50)<20 μg/ml), and then isolated the active ingredient cypress flavonoids ( Hinokiflavone) has an ED_(50) of 2.0 μg/ml. Inspired by this, many biflavonoids isolated from the past