作者:Brendan M. Crowley、Yoshiki Mori、Casey C. McComas、Datong Tang、Dale L. Boger
DOI:10.1021/ja039795a
日期:2004.4.1
The first total synthesis of the ristocetin aglycon is described employing a modular and highly convergent strategy. An effective 12-step (12% overall) synthesis of the ABCD ring system 3 from its amino acid subunits sequentially features an intramolecular aromatic nucleophilic substitution reaction for formation of the diaryl ether and closure of the 16-membered CD ring system (65%), a respectively
采用模块化和高度收敛的策略描述了瑞斯托菌素苷元的首次全合成。ABCD 环系统 3 从其氨基酸亚基的有效 12 步(总体 12%)合成依次具有分子内芳香亲核取代反应,用于形成二芳基醚和 16 元 CD 环系统的闭合(65%) ,分别为非对映选择性 (3:1, 86%) Suzuki 偶联,用于安装可进一步热调节阻转异构体立体化学的 AB 联芳基键,以及用于闭合 12 元 AB 环系统的有效大环内酰胺化 (51%) .