Selective Benzopyranone and Pyrimido[2,1-<i>a</i>]isoquinolin-4-one Inhibitors of DNA-Dependent Protein Kinase: Synthesis, Structure−Activity Studies, and Radiosensitization of a Human Tumor Cell Line in Vitro
作者:Roger J. Griffin、Gabriele Fontana、Bernard T. Golding、Sophie Guiard、Ian R. Hardcastle、Justin J. J. Leahy、Niall Martin、Caroline Richardson、Laurent Rigoreau、Martin Stockley、Graeme C. M. Smith
DOI:10.1021/jm049526a
日期:2005.1.1
scaffolds were less potent. Crucially, these studies revealed a very constrained structure-activityrelationship at the 2-position of the benzopyranone and pyrimido[2,1-a]isoquinolin-4-one pharmacophore, with only a 2-morpholino or 2-(2'-methylmorpholino) group being tolerated at this position. More detailed biological studies conducted with the most potent inhibitor NU7163 (48; IC(50) = 0.19 microM) demonstrated
Benzoflavone activators of the cystic fibrosis transmembrane conductance regulator: towards a pharmacophore model for the nucleotide-binding domain
作者:Mark F Springsteel、Luis J.V Galietta、Tonghui Ma、Kolbot By、Gideon O Berger、Hong Yang、Christopher W Dicus、Wonken Choung、Chao Quan、Anang A Shelat、R.Kiplin Guy、A.S Verkman、Mark J Kurth、Michael H Nantz
DOI:10.1016/s0968-0896(03)00435-8
日期:2003.9
using cell-based assays, of a series of benzoflavone analogues to examine structure-activity relationships and to identify compounds having greater potency for activation of both wild type CFTR and a mutant CFTR (G551D-CFTR) that causes cystic fibrosis in some human subjects. Using UCCF-029 as a structural guide, a panel of 77 flavonoid analogues was prepared. Analysis of the panel in FRT cells indicated