of the massadine D-ring by a synthetic route that features a diastereoselective and stereospecific Ireland–Claisen rearrangement of a trianionic enolate followed by a diastereoselective nitrone dipolar cycloaddition of a highly electron-poor oxime.
报道了对马萨定的C,D-自行车的对映选择性途径。对映纯中间体是使用Corey-Bakshi-Shibata试剂通过一次立体选择性还原生成的。通过合成途径将最初的立体诱导转变为马萨丁D环的五个连续立体中心,该合成途径的特征是三阴离子烯醇酸酯的非对映选择性和立体特异性爱尔兰-克莱森重排,然后是电子贫乏的
肟的非对映选择性硝基偶极环加成。