Pyrimidine-Based Tricyclic Molecules as Potent and Orally Efficacious Inhibitors of Wee1 Kinase
作者:Yunsong Tong、Maricel Torrent、Alan S. Florjancic、Kenneth D. Bromberg、Fritz G. Buchanan、Debra C. Ferguson、Eric F. Johnson、Loren M. Lasko、David Maag、Philip J. Merta、Amanda M. Olson、Donald J. Osterling、Nirupama Soni、Alexander R. Shoemaker、Thomas D. Penning
DOI:10.1021/ml5002745
日期:2015.1.8
Aided by molecular modeling, compounds with a pyrimidine-based tricyclic scaffold were designed and confirmed to inhibit Wee1 kinase. Structure-activity studies identified key pharmacophores at the aminoaryl and halo-benzene regions responsible for binding affinity with sub-nM Ki values. The potent inhibitors demonstrated sub-mu M activities in both functional and mechanism-based cellular assays and also possessed desirable pharmacokinetic profiles. The lead molecule, 31, showed oral efficacy in potentiating the antiproliferative activity of irinotecan, a cytotoxic agent, in a NCI-H1299 mouse xenograft model.