Design, Structure−Activity Relationships and in Vivo Characterization of 4-Amino-3-benzimidazol-2-ylhydroquinolin-2-ones: A Novel Class of Receptor Tyrosine Kinase Inhibitors
摘要:
The inhibition of key receptor tyrosine kinases (RTKs) that are implicated in tumor vasculature formation and maintenance, as well as tumor progression and metastasis, has been a major focus in oncology research over the last several years. Many potent small molecule inhibitors of vascular endothelial growth factor receptor (VEGFR) and platelet-derived growth factor receptor (PDGFR) kinases have been evaluated. More recently, compounds that act through the complex inhibition of multiple kinase targets have been reported and may exhibit improved clinical efficacy. We report herein a series of potent, orally efficacious 4-amino3-benzimidazol-2-ylhydroquinolin-2-one analogues as inhibitors of VEGF, PDGF, and fibroblast growth factor (FGF) receptor tyrosine kinases. Compounds in this class, such as 5 (TK1258), are reversible ATP-competitive inhibitors of VEGFR-2, FGFR-1, and PDGFR beta with IC50 values <0.1 mu M. On the basis of its favorable in vitro and in vivo properties, compound 5 was selected for clinical evaluation and is currently in phase I clinical trials.
Thienopyridinone compounds of Formula (I) and pharmaceutically acceptable salts thereof are described. In these compounds, one of X1; X2, and X3 is S and the other two are each independently CR, wherein R and all other variables are as defined herein. The compounds are shown to inhibit HPK1 kinase activity and to have in vivo antitumor activity. The compounds can be effectively combined with pharmaceutically acceptable carriers and also with other immunomodulatory approaches, such as checkpoint inhibition or inhibitors of tryptophan oxidation. Formula (I).
[EN] FUSED HETEROCYCLIC DERIVATIVE AND USE THEREOF IN MEDICINE<br/>[FR] DÉRIVÉ HÉTÉROCYCLIQUE FUSIONNÉ ET SON UTILISATION EN MÉDECINE<br/>[ZH] 一种并环杂环衍生物及其在医药上的应用
申请人:[en]HAISCO PHARMACEUTICAL GROUP CO., LTD.;[zh]海思科医药集团股份有限公司