作者:Zhengren Xu、Fengying Zhang、Lihe Zhang、Yanxing Jia
DOI:10.1039/c0ob01115k
日期:——
The total synthesis of protein kinase C activator (−)-indolactam V (IL-V) has been successfully completed with two separate approaches: From known 4-nitrotryptophan derivative 3 in 8 steps (49% overall yield) and from L-glutamic acid in 12 steps (18% overall yield), where 4-nitrotryptophanol derivative 4 served as a key intermediate. Derivatives 3 and 4, both incorporating indole 4-substitution and
蛋白激酶C激活剂(-)-吲哚内酰胺V(IL-V)的总合成已通过两种单独的方法成功完成:分8步从已知的4-硝基色氨酸衍生物3(总收率49%)和从大号谷氨酸分12步(总收率18%)进行研究,其中4-硝基色氨酸衍生物4为关键中间体。衍生物3和4均在IL-V中结合了吲哚4取代基和C-9立体中心,分别通过Pd催化的吲哚合成,由3-硝基-2-碘苯胺5与醛6和7合成。同时,醛7是由大号谷氨酸分5步(68%收率)。使用HATU在THF中以良好的产率实现9元环的内酰胺化。