Total Synthesis and Absolute Configuration of Macrocidin A, a Cyclophane Tetramic Acid Natural Product
作者:Tomohiro Yoshinari、Ken Ohmori、Marcus G. Schrems、Andreas Pfaltz、Keisuke Suzuki
DOI:10.1002/anie.200906362
日期:2010.1.25
iridium‐catalyzed asymmetric hydrogenation without fission of the CI bond, the macrolactam formation by intramolecular ketene trapping, and the Lacey–Dieckmann cyclization for the construction of the tetramic acid ring.
首次实现了对大环蛋白A环烷构架的立体控制访问。关键步骤包括铱催化的不对称加氢而不裂开CI键,通过分子内烯酮捕集形成大内酰胺,以及用于构建四酸环的Lacey-Dieckmann环化反应。