作为新的集落刺激因子1受体(CSF1R)激酶抑制剂的2-Oxo-3,4-dihydropyrimido [4,5- d ]嘧啶的设计,合成及构效关系研究
摘要:
集落刺激因子1受体激酶(CSF1R)是抗癌药物发现的一种经过充分验证的分子靶标。在这里,我们报告2-氧代-3,4-二氢嘧啶[4,5- d ]嘧啶类药物作为新型口服生物利用的CSF1R抑制剂的设计,合成和构效关系研究。最有前途的化合物之一3bw可以有效抑制CSF1R激酶,IC 50值为3.0 nM,而对结构相关的表皮生长因子受体(EGFR)和其他激酶的抑制作用较小。3bw的激酶抑制通过RAW264.7巨噬细胞中的蛋白质印迹分析进一步证实了这一点。该分子还有效阻断巨噬细胞浸润,消除巨噬细胞的致瘤作用,并表现出合理的药代动力学特征。化合物3bw可以用作未来抗癌药物发现的新的有价值的先导化合物。
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.