Total Synthesis of the Ramoplanin A2 and Ramoplanose Aglycon
作者:Wanlong Jiang、Jutta Wanner、Richard J. Lee、Pierre-Yves Bounaud、Dale L. Boger
DOI:10.1021/ja020237q
日期:2002.5.1
subunits composed of residues 3−9 (heptapeptide 15), pentadepsipeptide 26, and pentapeptide 34 (residues 10−14) were prepared, sequentially coupled, and cyclized to provide the 49-membered depsipeptide core of the aglycon. Key to the preparation of the pentadepsipeptide 26 incorporating the backbone ester was the asymmetric synthesis of an orthogonally protected l-threo-β-hydroxyasparagine and the development
The present invention provides novel chondramide derivatives of formula (I) which can be used for the treatment of cancer.
本发明提供了一种新型的化学式(I)的骨软骨素衍生物,可用于治疗癌症。
Synthesis of Simplified Halogenated Chondramide Derivatives with Strong Cytostatic Properties
作者:Dominic Becker、Uli Kazmaier
DOI:10.1002/ejoc.201403577
日期:2015.4
in the cytotoxicity of these interesting depsipeptides. This effect can be almost compensated for by introduction of a second chlorine atom on the β-tyrosine moiety of the natural products. These simplified chondramides are much easier accessible than natural chondramides.