versatile route to indolo[2,1-d][1,5]benzodiazocine derivatives has been developed based on a free radical cyclization approach from 1-substituted indole derivatives with appropriately positioned haloacetamide functionalities. Fair yields of the indole- and dihydroindole-fused eight-membered ring derivatives were obtained from N-substituted iodo- and bromoacetamide precursors. Synthetic and mechanistic aspects
基于自由基环化方法,从具有适当位置的卤代乙酰胺官能团的1-取代的
吲哚衍
生物开发了一种通用的
吲哚[2,1- d ] [1,5]苯并重氮衍
生物的途径。从N-取代的
碘-和
溴乙酰胺前体中可获得合理收率的
吲哚和二氢
吲哚稠合的八元环衍
生物。讨论了区域特异性环化的合成和机理方面。