A facile method for the synthesis of indole phytoalexin rutalexin
Tetrahedron Letters(2015)
Abstract
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-butoxycarbonyl-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.
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Key words
Indoles,Phytoalexins,Rutalexin,Natural products
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