1.
Org Lett
; 16(17): 4492-5, 2014 Sep 05.
Artigo
em Inglês
| MEDLINE
| ID: mdl-25111746
RESUMO
Ene-hydrazide prepared from enol triflate undergoes a Fischer indolization reaction to give the corresponding indole with complete regioselectivity. The starting enol triflate is readily accessed in regiochemically defined form from the ketone precursor via various well-established methods. This new protocol was successfully applied to the synthesis of desbromoarborescidine A, a natural ß-carboline alkaloid, difficult to prepare with conventional Fischer indole synthesis.