作者:Tiina Putkonen、Arto Tolvanen、Reija Jokela、Salvatore Caccamese、Nunziatina Parrinello
DOI:10.1016/j.tet.2003.09.010
日期:2003.10
The first total synthesis of racemic tangutorine, a novel indole alkaloid, was performed in 7 steps. The key reactions, dithionite reduction and acidic cyclization provided easy access with good yields to the tangutorine skeleton. Comprehensive NMR spectroscopic data of new compounds are given. Chiral HPLC separation of enantiomers is reported.
外消旋的橘子碱(一种新型的吲哚生物碱)的第一个全合成过程分7个步骤进行。关键反应,连二亚硫酸盐的还原和酸性环化作用使桔梗骨架易于获得且收率高。给出了新化合物的全面NMR光谱数据。报道了对映异构体的手性HPLC分离。