described. The regio- and stereo-selective construction of the biaryl axes was achieved through the ‘lactone methodology’, by ester-type prefixation of the two molecular moieties, intramolecular coupling, and atropo-diastereoselective cleavage of the lactone auxiliary bridge. As a novel alternative, the configuration at the axis may be installed by atroposelective hydroxy aldehyde reduction through dynamic
的第一全合成三个抗疟疾naphthylisoquinoline
生物碱dioncolactone A(4),dioncopeltine A(5),和5'- Ô -demethyldioncophylline A(6)进行说明。通过“内酯法”,通过两个分子部分的酯型前缀,分子内偶联和内酯辅助桥的对苯二酸-非对映选择性裂解,实现了芳基轴的区域和立体选择性构建。作为一种新颖的替代方案,可以通过动态动力学拆分通过对映选择性羟基醛还原来安装在轴上的构型。