作者:Satendra Singh、George Crossley、Saswati Ghosal、Yann Lefievre、Michael W. Pennington
DOI:10.1016/j.tetlet.2005.01.030
日期:2005.2
2′-deoxymugineic acid (DMA) has been developed via reductive alkylation with the aldehyde intermediates. No protection of azetidine-2-carboxylic acid was required and the presence of free carboxylic acid function facilitated purification by simple acid and base extractions. Furthermore, the intermediates were conveniently purified by HPLC due to the presence of chromophoric benzyl ester protecting group(s). Hydrogenolysis
通过与醛中间体的还原烷基化,已经开发出一种简短而实用的2'-脱氧ugineic酸(DMA)合成方法。不需要保护氮杂环丁烷-2-羧酸,并且游离羧酸官能团的存在有助于通过简单的酸和碱提取进行纯化。此外,由于发色苄基酯保护基的存在,方便地通过HPLC纯化了中间体。在最后步骤中,苄基保护基的氢解作用使DMA总体上具有良好的收率。