Novel nitric oxide (NO) releasing derivatives (7a–7l) of 3-n-butylphthalide (NBP) were designed and synthesized. Compound 7e inhibited the adenosine diphosphate (ADP), thrombin (TH) and arachidonic acid (AA)-induced in vitroplatelet aggregation, superior to NBP and aspirin, released moderate levels of NO, and improved aqueous solubility relative to NBP. Furthermore, 7e exhibited greater antithrombotic activity than NBP and aspirin in rats, and protected against collagen and adrenaline-induced thrombosis in mice. Therefore, NO-releasing NBP derivatives possessed potent antiplatelet aggregation and antithrombotic activity. Our findings may aid in the design of new therapeutic agents for the treatment of thrombosis-related ischemic stroke.
新设计的
硝酸氧化(NO)释放型衍
生物(7a–7l)的3-n-丁基
亚硝酸酯(NBP)被合成。化合物7e在体外抑制了
腺苷二
磷酸(
ADP)、血栓素(TH)和
花生四烯酸(
AA)诱导的血小板聚集,优于NBP和
阿司匹林,释放适量的NO,相对于NBP提高了
水溶性。此外,7e在大鼠中表现出比NBP和
阿司匹林更强的抗血栓活性,并保护小鼠免受
胶原蛋白和
肾上腺素诱导的血栓形成。因此,NO释放型NBP衍
生物具有强大的抗血小板聚集和抗血栓活性。我们的发现可能有助于设计用于治疗与血栓形成相关的缺血性中风的新型治疗药物。