Discovery of 2,3-Dihydro[1,4]dioxino[2,3-<i>g</i>]benzofuran Derivatives as Protease Activated Receptor 4 (PAR4) Antagonists with Potent Antiplatelet Aggregation Activity and Low Bleeding Tendency
作者:Panpan Chen、Cai Chen、Yizheng Zheng、Fangjun Chen、Zhaojun Liu、Shenhong Ren、Hangyu Song、Tongdan Liu、Zhipeng Lu、Hongbin Sun、Yi Kong、Haoliang Yuan
DOI:10.1021/acs.jmedchem.3c02099
日期:2024.4.11
benefited greatly from antiplatelet therapy. However, hemorrhage risk of antiplatelet agents cannot be ignored. Herein, we describe the discovery of 2,3-dihydro[1,4]dioxino[2,3-g]benzofuran compounds as novel PAR4 antagonists. Notably, the isomers 36 and 37 with the chemotype of phenoxyl methylene substituted on the 2,3-dihydro-1,4-dioxine ring exhibited potent in vitro antiplatelet activity (IC50 = 26.13 nM
动脉栓塞性疾病患者从抗血小板治疗中获益匪浅。然而,抗血小板药物的出血风险也不容忽视。在此,我们描述了 2,3-二氢[1,4]二恶英[2,3- g ]苯并呋喃化合物作为新型 PAR4 拮抗剂的发现。值得注意的是,化学型为苯氧基亚甲基在 2,3-二氢-1,4-二恶英环上取代的异构体36和37表现出有效的体外抗血小板活性( 36的 IC 50 = 26.13 nM, 37的 IC 50 = 14.26 nM),并且显着改善人肝微粒体的代谢稳定性(BMS-986120 36时T 1/2 = 97.6 分钟,11.1 分钟)。 36还表现出良好的口服 PK 特征(小鼠: T 1/2 = 7.32 h 和F = 45.11%)。两者在浓度为 6 和 12 mg/kg 时均表现出有效的体外抗血小板活性,对凝血系统没有影响且出血倾向低。我们的工作将促进新型 PAR4 拮抗剂的开发,作为动脉栓塞更安全的治疗选择。