Symmetry helps: The totalsynthesis of the potent actin‐targeting C2‐symmetric myxobacterial macrolide rhizopodin (see scheme) is accomplished by the convergent assembly of three building blocks of similar complexity, a concise macrocyclization strategy, and a late‐stage introduction of the labile side chains.
Stereocontrolled Synthesis of the C8–C22 Fragment of Rhizopodin
作者:Manuel Kretschmer、Dirk Menche
DOI:10.1021/ol203130b
日期:2012.1.6
A convergent synthesis of the central C8–C22 core of the potent macrolide antibiotic rhizopodin is reported. Notable features of the stereocontrolled approach include an asymmetric reverse prenylation of an alcohol using a method of Krische, a thiazolium catalyzed transformation of an epoxyaldehyde as described by Bode, and a late-stage oxazole formation from advanced intermediates. This route demonstrates
A highly convergent total synthesis of the potent polyketide macrolide rhizopodin has been achieved in 29 steps by employing a concise strategy that exploits the molecule′s C2 symmetry. Notable features of this convergent approach include a rapid assembly of the macrocycle through a site‐directed sequential cross‐coupling strategy and the bidirectional attachment of the side chains by means of Hor
作者:Liankai Song、Junyang Liu、Honggang Gui、Chunngai Hui、Jingjing Zhou、Yian Guo、Pengpeng Zhang、Zhengshuang Xu、Tao Ye
DOI:10.1002/asia.201300802
日期:2013.12
Rhizing star: A stereoselective synthesis of the fully functionalized macrocyclic core of rhizopodin, a cytotoxic 38‐membered macrolide, has been disclosed. The key steps involve Sharpless epoxidation, Robinson–Gabriel oxazole synthesis, olefin cross‐metathesis, Suzuki coupling, Yamaguchi esterificationn, and Shiina macrolactonization.