Download MendeleyDiscovery of N-Trisubstituted Pyrimidine Derivatives as Type I RET and RET Gatekeeper Mutant Inhibitors with a Novel Kinase Binding Pose.
Zhang, L., Moccia, M., Briggs, D.C., Bharate, J.B., Lakkaniga, N.R., Knowles, P., Yan, W., Tran, P., Kharbanda, A., Wang, X., Leung, Y.K., Frett, B., Santoro, M., McDonald, N.Q., Carlomagno, F., Li, H.Y.(2022) J Med Chem 65: 1536-1551
- PubMed: 35081714
- DOI: https://doi.org/10.1021/acs.jmedchem.1c01280
- Primary Citation of Related Structures:
7NZN - PubMed Abstract:
Mutations of the rearranged during transfection (RET) kinase are frequently reported in cancer, which make it as an attractive therapeutic target. Herein, we discovered a series of N-trisubstituted pyrimidine derivatives as potent inhibitors for both wild-type ( wt ) RET and RET V804M , which is a resistant mutant for several FDA-approved inhibitors. The X-ray structure of a representative inhibitor with RET revealed that the compound binds in a unique pose that bifurcates beneath the P-loop and confirmed the compound as a type I inhibitor. Through the structure-activity relationship (SAR) study, compound 20 was identified as a lead compound, showing potent inhibition of both RET and RET V804M . Additionally, compound 20 displayed potent antiproliferative activity of CCDC6-RET-driven LC-2/ad cells. Analysis of RET phosphorylation indicated that biological activity was mediated by RET inhibition. Collectively, N-trisubstituted pyrimidine derivatives could serve as scaffolds for the discovery and development of potent inhibitors of type I RET and its gatekeeper mutant for the treatment of RET-driven cancers.
Organizational Affiliation:
Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States.
