Photochemical Synthesis of 1,4‐Dicarbonyl Containing Quinoxalin‐2(1<i>H)‐</i>Ones through Consecutive Photoredox Catalysis
作者:Cong‐Lun Xu、Ye‐Peng Bao、Yang Xie、Hai‐Bing Ye、Jun Xuan
DOI:10.1002/adsc.202301393
日期:2024.4.23
of 1,4-dicarbonyl containing quinoxalin-2(1H)-ones through consecutive photoredox catalytic strategy. A wide range of C3-modified quinoxalin-2(1H)-ones were obtained in 53-91% yields by this approach. Mechanistic studies including radical trapping, EPR studies, D-labelling investigations, and many other control experiments well explained the proposed consecutive photoredox mechanism.
Small Molecule Antagonists of the Interaction between the Histone Deacetylase 6 Zinc-Finger Domain and Ubiquitin
作者:Rachel J. Harding、Renato Ferreira de Freitas、Patrick Collins、Ivan Franzoni、Mani Ravichandran、Hui Ouyang、Kevin A. Juarez-Ornelas、Mark Lautens、Matthieu Schapira、Frank von Delft、Vjayaratnam Santhakumar、Cheryl H. Arrowsmith
DOI:10.1021/acs.jmedchem.7b00933
日期:2017.11.9
Inhibitors of HDAC6 have attractive potential in numerous cancers. HDAC6 inhibitors to date target the catalytic domains, but targeting the unique zinc-finger ubiquitin-binding domain (Zf-UBD) of HDAC6 may be an attractive alternative strategy. We developed X-ray crystallography and biophysical assays to identify and characterize small molecules capable of binding to the Zf-UBD and competing with ubiquitin binding. Our results revealed two adjacent ligand-able pockets of HDAC6 Zf-UBD and the first functional ligands for this domain.