Pyrimidine-Based Tricyclic Molecules as Potent and Orally Efficacious Inhibitors of Wee1 Kinase
摘要:
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.
The present invention relates to compounds of formula (I) or pharmaceutical acceptable salts,
wherein X, Y, Z, R
3
and R
4
are defined in the description. The present invention relates also to compositions containing said compounds which are useful for inhibiting kinases such as wee-1 and methods of treating diseases such as cancer.