Synthesis of the natural coumarins, murraol (CM-c2), trans-dehydroosthol and swietenocoumarin G
作者:Robert D.H. Murray、Saad Zeghdi
DOI:10.1016/0031-9422(89)85043-5
日期:——
Abstract The coumarin CM-c 2 , from Cnidium monnieri , 7-methoxy-8-(3-hydroxy-3-methylbut-1-enyl) coumarin, has been synthesized by palladium acetate-catalysed condensation of 7-methoxy-8-iodocoumarin with 2-methylbut-3-en-2-ol. Its stereochemistry follows from its conversion to trans-dehydroosthol. The identity of CM-c 2 and murraol has been established. Swietenocoumarin G has been prepared similarly
摘要 香豆素 CM-c 2 来自蛇床子,7-甲氧基-8-(3-羟基-3-甲基丁-1-烯基)香豆素,通过乙酸钯催化的 7-甲氧基-8-碘香豆素缩合合成。与 2-methylbut-3-en-2-ol。它的立体化学源于其转化为反式脱氢蛇床酚。CM-c 2 和 murraol 的身份已经确定。Swietenoucoumarin G 已从 bergaptol 中类似地制备。