Angucycline C5 Glycosides: Regio- and Stereocontrolled Synthesis and Cytotoxicity
作者:Prithiba Mitra、Birendra Behera、Tapas K. Maiti、Dipakranjan Mal
DOI:10.1021/jo4013892
日期:2013.10.4
This study discloses a general and convergent route for the regio- and stereospecific construction of the C5 glycosyl angucycline framework of mayamycin. C-Glycosidation, dearomatization, and Hauser annulation are the key steps. The synthetic analogues show cytotoxicity against different human cancer cell lines with IC50 values between 16.4 and 1.2 μM.
Electrochemical Dearomatizing Methoxylation of Phenols and Naphthols: Synthetic and Computational Studies
作者:Ireneusz Tomczyk、Marcin Kalek
DOI:10.1002/chem.202303916
日期:2024.4.5
Phenols and naphthols are dearomatized to methoxycyclohexadienones under simple and robust electrochemical conditions, in a green way without chemical oxidants. The mechanism of the reaction is established using density functional theory calculations, which also explain the chemo- and regioselectivity for differently-substituted substrates.