串钱柳醇A - E，来自串钱柳叶的新型萜类共轭间苯三酚。
Callviminols A-E, new terpenoid-conjugated phloroglucinols from the leaves of Callistemon viminalis.
作者信息
Liu Hong-Xin, Chen Kai, Liu Yuan, Li Can, Wu Jie-Wei, Xu Zhi-Fang, Tan Hai-Bo, Qiu Sheng-Xiang
机构信息
Program for Natural Product Chemical Biology, Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou 510070, China.
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
出版信息
Fitoterapia. 2016 Dec;115:142-147. doi: 10.1016/j.fitote.2016.10.007. Epub 2016 Oct 31.
Callviminols A-E (1-5), five rare phloroglucinols bearing a framework embodying a hexahydrodibenzo[b,d]furan or 2-phenylcyclohexanol nucleus derived from a phloroglucinol-monoterpene adduct, were isolated from the leaves of Callistemon viminalis. Their structures were established via extensive spectroscopic measurements, with the absolute configuration of 5 determined by electronic circular dichroism (ECD) calculations. The plausible biogenetic pathway suggested that a unique oxidative radical addition and classic cationic cyclization were key biosynthetic steps.
从串钱柳（Callistemon viminalis）的叶子中分离出了callviminols A-E（1-5），这是五种罕见的间苯三酚类化合物，其骨架包含一个由间苯三酚-单萜加合物衍生而来的六氢二苯并[b,d]呋喃或2-苯基环己醇核。通过广泛的光谱测量确定了它们的结构，其中5的绝对构型通过电子圆二色性（ECD）计算确定。合理的生源途径表明，独特的氧化自由基加成和经典的阳离子环化是关键的生物合成步骤。
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