摘要/Abstract
从小盘木植物中分离鉴定了四个新二萜类化合物1~4,分别属于dolabrane烷型、玫瑰烷型、半日花烷型以及烟草烷型.综合利用各种光谱数据阐明了四个二萜类化合物的相对立体结构,并通过圆二色谱(ECD)数据确定了它们的绝对构型.
关键词: 小盘木, 小盘木属, 二萜化合物, 小盘木素A~D, 结构解析, 圆二色谱(ECD)分析
Four new diterpenoids, casearoids A~D (1~4), including dolabrane, orosane, labdane, and cembrane, were isolated and characterized from Microdesmis casearifolia. Their structures were elucidated by extensive spectroscopic data analysis. The absolute configurations of these diterpenoids were established by analysis of the electronic circular dichroism (ECD) data.
Key words: Microdesmis casearifolia, Microdesmis genus, diterpenoid, casearoids A~D, spectroscopic analysis, electronic circular dichroism (ECD) analysis
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