作者:Florence Eustache、Peter I. Dalko、Janine Cossy
DOI:10.1021/jo035068m
日期:2003.12.1
sequence involves two dynamic kinetic resolution steps of 2-alkyl 1,3-diketones that use optically active ruthenium complexes, an anti-selective reduction of a beta-hydroxyketone to control the C23 stereogenic center, and an aldol-type reaction under Evans' conditions, which sets the C17 and C18 stereogenic centers.
通过收敛的途径实现了对bafilomycin A1的C14-C25亚基的对映选择性合成。该序列涉及两个动态动力学拆分步骤,即使用光学活性钌配合物的2-烷基1,3-二酮,反选择性还原β-羟基酮以控制C23立体异构中心以及在Evans's反应下的醛醇型反应。条件,这将设置C17和C18立体定位中心。