Callviminols A-E, new terpenoid-conjugated phloroglucinols from the leaves of Callistemon viminalis
Callviminols A-E, new terpenoid-conjugated phloroglucinols from the leaves of Callistemon viminalis
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Callviminols A-E，来自 Callistemon viminalis 叶子的新型萜类化合物缀合间苯三酚
DOI：
10.1016/j.fitote.2016.10.007
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发表时间：
2016-12-01
期刊：
影响因子：
3.4
通讯作者：
Qiu, Sheng-Xiang
中科院分区：
文献类型：
--
作者：
Liu, Hong-Xin;Chen, Kai;Qiu, Sheng-Xiang
CalviminolsA-E（1-5）是五种稀有的间苯三酚，它们具有六氢二苯并[B，d]呋喃或2-苯基环己醇的骨架，衍生自间苯三酚-单萜加合物。它们的结构通过广泛的光谱测量确定，5的绝对构型通过电子圆二色性（ECD）计算确定。合理的生物遗传途径表明，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。(C)© 2016 Elsevier B. V.版权所有。
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. (C) 2016 Elsevier B.V. All rights reserved.