Rajasekhar D, Subbaraju G V, Pillai K R
Department of Chemistry, Sri Venkateswara University, Tirupati, India.
J Asian Nat Prod Res. 2000;2(4):289-300. doi: 10.1080/10286020008041368.
A new arylnaphthalide lignan, prostalidin D (6) was isolated as a minor metabolite from Justicia diffusa var. prostrata. 6 contains a rare catechol unit and its structure was confirmed by total synthesis. In addition, seven known lignans, namely, justicidin E (7), helioxanthin (8), justicidin A (9), medioresinol dimethyl ether (10), medioresinol (11), lariciresinol (12) and 8-methoxyisolariciresinol (13) have also been isolated from the same source and identified by direct comparison with authentic samples.
从平卧腺毛马蓝中分离得到一种新的芳基萘内酯木脂素——前列腺素D(6),它是一种次要代谢产物。6含有一个罕见的儿茶酚单元,其结构通过全合成得以确证。此外,还从同一来源分离得到了七种已知木脂素,即正义霉素E(7)、半日花素(8)、正义霉素A(9)、中树脂醇二甲醚(10)、中树脂醇(11)、落叶松脂醇(12)和8-甲氧基异落叶松脂醇(13),并通过与标准样品直接比较进行了鉴定。