Synthesis of<i>N</i>-Bz-Protected D-Daunosamine and D-Ristosamine by Silica Gel Promoted Intramolecular Conjugate Addition of Trichloroacetimidates obtained from Osmundalactone and Its Epimer
作者:Yoshitaka Matsushima、Jun Kino
DOI:10.1002/ejoc.200901402
日期:2010.4
osmundalactone and its epimer unexpectedly undergo intramolecular conjugate addition during silica gel chromatography to produce oxazolines in excellent yields. The novel, simple synthesis of N-Bz-protected D-daunosamine and D-ristosamine from these oxazolines is described in this paper.
由桂皮内酯及其差向异构体制备的三氯乙酰亚胺在硅胶色谱过程中出人意料地进行了分子内共轭加成,以优异的产率生产恶唑啉。本文描述了从这些恶唑啉中新颖、简单地合成 N-Bz 保护的 D-道诺胺和 D-利索胺。