Directed Hydrogenations and an Ireland-Claisen Rearrangement Linked to Evans-Tishchenko Chemistry: The Highly Efficient Total Synthesis of the Marine Cyclodepsipeptide Doliculide
作者:Tao Chen、Karl-Heinz Altmann
DOI:10.1002/chem.201501252
日期:2015.6.1
Two new convergent total syntheses have been developed for the cytotoxic, actin microfilament‐stabilizing marinecyclodepsipeptide doliculide (1). A key strategic element of both routes is the establishment of the central stereogenic center of the characteristic polydeoxypropionate stereotriad by means of a hydroxyl‐directed catalytic hydrogenation of a trisubstituted double bond. The requisite olefin
A Matteson Homologation‐Based Synthesis of Doliculide and Derivatives
作者:Markus Tost、Oliver Andler、Uli Kazmaier
DOI:10.1002/ejoc.202101345
日期:2021.12.14
Doliculides are easily accessible through Matteson homologation. With this single reaction, all stereogenic centers of the polyketide fragment can be obtained in a highlystereoselective fashion. This protocol also allows for the synthesis of derivatives by proper choice of the nucleophiles used in the homologation steps.
通过 Matteson 认证可轻松获得 Doliculides。通过这个单一的反应,聚酮化合物片段的所有立体中心都可以以高度立体选择性的方式获得。This protocol also allows for the synthesis of derivatives by proper choice of the nucleophiles used in the homologation steps.
Total Synthesis of Antitumor Depsipeptide (−)-Doliculide
作者:Arun K. Ghosh、Chunfeng Liu
DOI:10.1021/ol0100069
日期:2001.2.1
a potent antitumor agent, is synthesized stereoselectively in a convergent manner. The key strategy involves a stereoselective synthesis of the polyketide unit and synthesis of the D-tyrosine derivative, followed by assembly of the fragments by an esterification and cycloamidation reaction sequence. The synthesis of the polyketide fragment was achieved by an iterative asymmetric synthesis to install