1,3-Thiazino[6,5-b]indol-4-one derivatives. The first synthesis of indole phytoalexin cyclobrassinon
作者:Mojmı́r Suchý、Peter Kutschy、Milan Dzurilla、Vladimı́r Kováčik、Aldo Andreani、Juraj Alföldi
DOI:10.1016/s0040-4039(01)01422-8
日期:2001.9
The first synthesis of indole phytoalexin cyclobrassinon in six steps, in 12% overall yield and some of its analogues, possessing a 1,3-thiazino[6,5-b]indol-4-one tricyclic ring system was performed, starting from 2-chloroindole-3-carboxaldehyde and employing the intramolecular Et3N-mediated nucleophilic substitution of a chlorine atom in the 2-position of an indole ring with sulfur as a key step. (C) 2001 Elsevier Science Ltd. All rights reserved.