286936-08-1Relevant articles and documents
Stereocontrolled Synthesis of (-)-Bactobolin A
Vojá?ková, Petra,Michalska, Lucyna,Ne?as, Marek,Shcherbakov, Dimitri,B?ttger, Erik C.,?poner, Ji?í,?poner, Judit E.,?venda, Jakub
, p. 7306 - 7311 (2020/05/25)
A stereoselective synthesis of the ribosome-binding antitumor antibiotic (-)-bactobolin A is reported. The presented approach makes effective use of (-)-quinic acid as a chiral pool starting material and substrate stereocontrol to establish the five contiguous stereocenters of (-)-bactobolin A. The key steps of the synthesis include a stereoselective vinylogous aldol reaction to introduce the unusual dichloromethyl substituent, a completely diastereoselective rhodium(II)-catalyzed C-H amination reaction to set the configuration of the axial amine, and an intramolecular alkoxycarbonylation to build the bicyclic lactone framework. The developed synthetic route was used to prepare 90 mg of (-)-bactobolin A trifluoroacetate in 10% overall yield.
The synthesis of 2-oxyalkyl-cyclohex-2-enones, related to the bioactive natural products COTC and antheminone A, which possess anti-tumour properties
Arthurs, Claire L.,Morris, Gareth A.,Piacenti, Michela,Pritchard, Robin G.,Stratford, Ian J.,Tatic, Tanja,Whitehead, Roger C.,Williams, Katharine F.,Wind, Natasha S.
experimental part, p. 9049 - 9060 (2011/01/04)
The syntheses of five novel 2-oxyalkyl-cyclohex-2-enones, structurally related to the natural products COTC and antheminone A, are described. The target structures were selected in order to probe the influence of several key structural parameters on in vi
Analogues of 2-crotonyloxymethyl-(4R,5R,6R)-4,5,6-trihydroxycyclohex-2-enone (COTC) with anti-tumor properties
Arthurs, Claire L.,Wind, Natasha S.,Whitehead, Roger C.,Stratford, Ian J.
, p. 553 - 557 (2007/10/03)
The syntheses of three novel analogues of the naturally occurring cytotoxic agent COTC are described and the results of bioassays of the target compounds against two lung cancer cell lines are presented.