作者:Lisa I. Pilkington、David Barker
DOI:10.1002/ejoc.201301363
日期:2014.2
enantioselective total synthesis of the biologically active 1,4-benzodioxane lignans isoamericanin A (2) and isoamericanol A (3) has been achieved in 11 and 12 steps, respectively. These benzodioxane lignan natural products, and others that contain 9-hydroxymethyl group, show a wide range of biological properties. The 1,4-benzodioxane ring was formed by an acid-catalysed cyclisation, which gave the desired
生物活性 1,4-苯并二恶烷木脂素异美洲素 A (2) 和异美洲醇 A (3) 的对映选择性全合成已分别通过 11 步和 12 步实现。这些苯并二恶烷木脂素天然产物以及其他含有 9-羟甲基的天然产物显示出广泛的生物学特性。1,4-苯并二恶烷环是通过酸催化的环化反应形成的,仅得到所需的反式异构体。该方法将允许合成许多含有 9-羟甲基的苯并二恶烷化合物