The macrolide rutamycin B containing 17 stereogenic centres and a 26-membered ring was synthesized by a route which features a chelate-controlled, double differentiating aldol reaction and ring closure by means of a vinyl–vinyl coupling.
含有17个立体中心和一个26元环的大环内酯路达霉素B,通过一种特征性的螯控双差向
丙酮醛反应和
乙烯-
乙烯偶联合环的方式合成。