Total synthesis of (±) aspidostomide B, C, regioisomeric N-methyl aspidostomide D and their derivatives
作者:Mulla Althafh Hussain、Faiz Ahmed Khan
DOI:10.1016/j.tetlet.2019.151040
日期:2019.9
A full account of the total synthesis of aspidostomide B, C, their analogues and our synthetic efforts towards the synthesis of aspidostomide D, which led to the synthesis of regioisomeric N-methyl aspidostomide D, its analoguesvia epoxide opening strategy is presented. The synthesis of regioisomeric N-methyl aspidostomide D involves an efficient, five-step sequence, with 36.3% overall yield, starting
Indolesynthesis by a gold(I)‐catalyzed intermolecular formal [4+2] reactionbetween 1,3‐diynes and pyrroles has been developed. This reaction involves the hydroarylation of 1,3‐diynes with pyrroles followed by an intramolecular hydroarylation to give the 4,7‐disubstituted indoles. This reaction can also be applied to the synthesis of carbazoles when indoles are used as the nucleophiles instead of