作者:Mariana Budovská、Zuzana Kudličková、Peter Kutschy、Martina Pilátová、Ján Mojžiš
DOI:10.1016/j.tetlet.2015.05.001
日期:2015.6
Novel methods for the preparation of the indole phytoalexin rutalexin (8) in high yields are presented. The synthesis of rutalexin (8) was achieved from previously synthesized 9-tert-butoxycarbony1-2-methoxy-4-oxo-[1,3]thiazino[6,5-b]indole (5) by its hydrolysis, methylation, and deprotection. A second method starting from 9-Boc-cyclobrassinin (9) involved oxidation, methylation, and deprotection. (C) 2015 Elsevier Ltd. All rights reserved.