Highly Diastereoselective Construction of Substituted Pyrrolidines: Formal Synthesis of (-)-Bulgecinine¹
作者:Biswanath Das、Duddukuri Kumar
DOI:10.1055/s-0030-1260546
日期:2011.6
A highly diastereoselective synthesis of substituted pyrrolidines has been achieved starting from nonchiral molecule, allyl bromide, or cis-but-2-ene-1,4-diol. The method involves the asymmetric epoxidation and endo-mode epoxide opening with azide nucleophile as the key steps. The method has been applied for the formal synthesis of (-)-bulgecinine.
以非手性分子、烯丙基溴或顺式-2-烯-1,4-二醇为起点,实现了取代的吡咯烷的高非对映选择性合成。该方法的关键步骤包括不对称环氧化和以叠氮化物为亲核体的内模式环氧化物开环。该方法已应用于 (-)-bulgecinine 的正式合成。