PMID: 22985853

Authors:

Wu K, Ai J, Liu Q, Chen T, Zhao A, Peng X, Wang Y, Ji Y, Yao Q, Xu Y, Geng M, Zhang A

Title:

Multisubstituted quinoxalines and pyrido[2,3-d]pyrimidines: Synthesis and SAR study as tyrosine kinase c-Met inhibitors.

Journal:

Bioorg Med Chem Lett. 2012 Oct 15;22(20):6368-72. doi:, 10.1016/j.bmcl.2012.08.075. Epub 2012 Aug 27.

Abstract:

Two series of new analogues were designed by replacing the quinoline scaffold of our earlier lead 2 (zgwatinib) with quinoxaline and pyrido[2,3-d]pyrimidine frameworks. Moderate c-Met inhibitory activity was observed in the quinoxaline series. Among the pyrido[2,3-d]pyrimidine series, compounds 13a-c possessing an O-linkage were inactive, whilst the N-linked analogues 15a-c retained c-Met inhibitory potency. Highest activity was observed in the 3-nitrobenzyl analog 15b that showed an IC(50) value of 6.5nM. Further structural modifications based on this compound were undergoing.