2-Oxo-3,4-dihydropyrimido[4,5-d] pyrimidines as new reversible inhibitors of EGFR C797S (Cys797 to Ser797) mutant
作者:Xianglong Hu、Qiuju Xun、Tao Zhang、Su-Jie Zhu、Qian Li、Linjiang Tong、Mengzhen Lai、Tao Huang、Cai-Hong Yun、Hua Xie、Ke Ding、Xiaoyun Lu
DOI:10.1016/j.cclet.2019.09.044
日期:2020.5
Extensive structure-activity relationships (SARs) study of JND3229 was conducted to yield a series of new reversible 2-oxo-3,4-dihydropyrimido[4,5-d]pyrimidine privileged scaffold as EGFR(C797S )inhibitors. One of the most potent compound 6i potently suppressed EGFR(L858R/T790M/C797S) kinase with an IC50 value of 3.1 nmol/L, and inhibited the proliferation of BaF3 cells harboring EGFR-(L858R/T790M/C797S) and EGER(19D/T790M/C797S) mutants with IC50 values of 290 nmol/L and 316 nmol/L, respectively. Further, 6i dose-dependently induced suppression of the phosphorylation of EGFR-(L858R/T790M/C797S) and EGER(19D/T790M/C797S) in BaF3 cells. Compound 6i may serve as a promising lead compound for further drug discovery overcoming the acquired resistance of non-small cell lung cancer (NSCLC) patients. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.