作者:Christoffer Bengtsson、Ylva Gravenfors
DOI:10.3390/molecules28124818
日期:——
development of a short and convenient synthesis of a type of duocarmycin prodrug. The 1,2,3,6-tetrahydropyrrolo[3,2-e]indole-containing core is here constructed from commercially available Boc-5-bromoindole in four steps and 23% overall yield, utilizing a Buchwald–Hartwig amination followed by a sodium hydride-induced regioselective bromination. In addition, protocols for selective mono- and di-halogenations
双卡霉素类化合物的构建通常与冗长的合成路线相关。本文提出了一种多卡霉素前药的短且方便的合成方法的开发。此处,含有 1,2,3,6-四氢吡咯并[3,2-e]吲哚的核心是由市售的 Boc-5-溴吲哚构建而成,采用 Buchwald-Hartwig 胺化,然后进行胺化,分四步,总产率为 23%。氢化钠诱导的区域选择性溴化。此外,还开发了位置 3 和位置 4 的选择性单卤化和二卤化方案,这可能有助于进一步探索该支架。