作者:Stephan Böttcher、Joachim Thiem
DOI:10.1002/ejoc.201301198
日期:2014.1
Indoxylic acid methyl and allyl esters with varied halide-substitution patterns were obtained in excellent yields using a scalable route. Phase-transfer glycosylation of these key intermediates was carried out with various glycosyl halides. Subsequent mild silver-mediated decarboxylation followed by Zemplen deacetylation led to indoxyl glycosides in good overall yields. Indoxyl glycosides are well-established
使用可扩展的路线以极好的收率获得了具有不同卤化物取代模式的吲哚酸甲酯和烯丙酯。这些关键中间体的相转移糖基化是用各种糖基卤化物进行的。随后温和的银介导的脱羧作用,然后是 Zemplen 脱乙酰作用,以良好的总产率得到吲哚酚苷。吲哚酚苷是酶筛选和酶活性监测的成熟和广泛使用的工具。过去,它们的合成一直很困难,因此这种新方法导致了各种有用的结构。