Synthesis of Side Chain Substituted 3-Butylisocoumarins and Absolute Configurations of Natural Isocoumarins from Artemisia dracunculus
作者:Gerda Lutz-Kutschera、Doris Engelmeier、Franz Hadacek、Andreas Werner、Harald Greger、Otmar Hofer
DOI:10.1007/s00706-003-0046-6
日期:2003.9.1
A series of 3-hydroxy- and 3-bromobutyl-substituted isocoumarins was synthesized. The absolute configurations of three isocoumarin derivatives from Artemisia dracunculus , namely (−)-epoxyartemidin, (−)-2′-methoxydihydroartemidin, and (+)-3′-hydroxyartemidin were determined by chemical means via derivatization, kinetic racemate resolution ( Horeau method), and comparison of the circular dichroism (CD)
合成了一系列3-羟基和3-溴丁基取代的香豆素。通过化学方法 通过 衍生化,动力学外消旋拆分( Horeau方法)通过化学方法确定了来自 青蒿 的三种异香豆素衍生物的绝对构型 ,即(-)-环氧青蒿素,(-)-2'-甲氧基二氢青蒿素和(+)-3'-羟基 青蒿素。 ),以及圆二色性(CD)光谱的比较。