Discovery of First-in-Class, Potent, and Orally Bioavailable Embryonic Ectoderm Development (EED) Inhibitor with Robust Anticancer Efficacy
摘要:
Overexpression and somatic heterozygous mutations of EZH2, the catalytic subunit of polycomb repressive complex 2 (PRC2), are associated with several tumor types. EZH2 inhibitor, EPZ-6438 (tazemetostat), demonstrated clinical efficacy in patients with acceptable safety profile as monotherapy. EED, another subunit of PRC2 complex, is essential for its histone methyltransferase activity through direct binding to trimethylated lysine 27 on histone 3 (H3K27Me3). Herein we disclose the discovery of a first-in-class potent, selective, and orally bioavailable EED inhibitor compound 43 (EED226). Guided by X-ray crystallography, compound 43 was discovered by fragmentation and regrowth of compound 7, a PRC2 HTS hit that directly binds EED. The ensuing scaffold hopping followed by multiparameter optimization led to the discovery of 43. Compound 43 induces robust and sustained tumor regression in EZH2(MUT) preclinical DLBCL model. For the first time we demonstrate that specific and direct inhibition of EED can be effective as an anticancer strategy.
[EN] POLYCYCLIC COMPOUNDS AS ALLOSTERIC SHP2 INHIBITORS<br/>[FR] COMPOSÉS POLYCYCLIQUES UTILISÉS EN TANT QU'INHIBITEURS ALLOSTÉRIQUES DE SHP2
申请人:REVOLUTION MEDICINES INC
公开号:WO2019118909A1
公开(公告)日:2019-06-20
The present disclosure is directed to inhibitors of SHP2 and their use in the treatment of disease. Also disclosed are pharmaceutical compositions comprising the same.
[EN] HETEROCYCLIC COMPOUND, AND PREPARATION METHOD THEREFOR AND USE THEREOF<br/>[FR] COMPOSÉ HÉTÉROCYCLIQUE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION<br/>[ZH] 杂环化合物及其制备方法和用途
申请人:SICHUAN KELUN BIOTECH BIOPHARMACEUTICAL CO LTD