Chemoenzymatic Total Synthesis of a Naturally Occurring (5-5′)/(8′-<i>O</i>-4″) Dehydrotrimer of Ferulic Acid
作者:Louis M. M. Mouterde、Amandine L. Flourat、Molly M. M. Cannet、Paul-Henri Ducrot、Florent Allais
DOI:10.1002/ejoc.201201290
日期:2013.1
cross-linked than has been previously recognized. To produce the (5-5 ')/(8 '-O-4 '') dehydrotrimer (A) in suf-ficient high-purity quantities and allow the development of analytical methodologies (e.g., LC/GC, immunohistochemistry) to identify and quantify this peculiar trimer in plant extracts or samples, its first total convergent synthesis has been achieved in 10 steps and in 18% yield starting from commercially
阿魏酸脱氢二聚反应对植物细胞壁的交联已经很好地建立起来。最近,从玉米麸的碱提取物中分离出阿魏酸 (A) 的 (5-5')/(8'-O-4'') 脱氢三聚体。其结构是在广泛的结构分析(UV、MS、1D 和 2D NMR)的基础上阐明的。这种首次鉴定的阿魏酸脱氢三聚体表明壁多糖链可以比以前认识到的更广泛地交联。生产足够高纯度的 (5-5 ')/(8 '-O-4 '') 脱氢三聚体 (A),并允许开发分析方法(例如,LC/GC、免疫组织化学)以鉴定并量化植物提取物或样品中这种特殊的三聚体,