A C2-Symmetric Pool Based Flexible Strategy: An Enantioconvergent Synthesis of (+)-Valiolamine and (+)-Valienamine
作者:Hong-Jay Lo、Cheng-Yih Chen、Wei-Lin Zheng、Shang-Ming Yeh、Tu-Hsin Yan
DOI:10.1002/ejoc.201101845
日期:2012.5
enantioconvergent strategy directed toward the synthesis of glucosidase inhibitors was developed by using a C2-symmetric element within the chiral pool and by applying an iodine-promoted cyclization of an unsaturated carbonimidothioate for the regio- and diastereocontrolled installation of amino and hydroxy units. Not only does this simple flexible strategy provide a convergent concise approach to (+)-valiolamine
通过在手性池中使用 C2 对称元件,并通过应用碘促进的不饱和碳亚氨基硫酸酯环化,针对氨基和羟基单元的区域和非对映控制安装,开发了一种针对葡萄糖苷酶抑制剂合成的新对映收敛策略。这种简单灵活的策略不仅为 (+)-缬草胺 (1) 提供了一种收敛简洁的方法,而且还可以很容易地用于合成 (+)-缬草胺 (2)。市售且便宜的 C2 对称 D-酒石酸用作手性构件。