作者:Hajime Mizuno、Kei Domon、Keiichi Masuya、Keiji Tanino、Isao Kuwajima
DOI:10.1021/jo981478c
日期:1999.4.1
unit (S)-7 gave bicyclic ketones 8 and 9, which were easily converted into vinyl sulfide 11. Stereoselective construction of the A-ring was achieved by the second [3+2] cycloaddition reaction of the BC-ring unit. New methods for introduction of the oxygen functional groups to the triquinane skeleton were also developed for the last stages of the total synthesis. Thus, the C7 hydroxyl group was introduced
基于1-(甲硫基)-2-甲硅烷基烯丙基阳离子物种与乙烯基硫醚的[3 + 2]环加成反应,已经开发了一种有效的(-)-coriolin合成方法。通过使用脂肪酶对五元烯丙酯6b进行光学拆分,制备了对映体纯的C环单元。C环单元(S)-7的第一个[3 + 2]环加成反应生成双环酮8和9,它们很容易转化为乙烯基硫化物11。第二个[3+]实现了A环的立体选择性结构2] BC环单元的环加成反应。在总合成的最后阶段,也开发了将氧官能团引入三喹烷骨架的新方法。因此,通过二烯醇甲硅烷基醚17的环氧化引入C7羟基。