Synthesis and Thrombin, Factor Xa and U46619 Inhibitory Effects of Non-Amidino and Amidino N2-Thiophenecarbonyl- and N2-Tosylanthranilamides
作者:Soo Lee、Wonhwa Lee、ThiHa Nguyen、Il Um、Jong-Sup Bae、Eunsook Ma
DOI:10.3390/ijms18061144
日期:——
Thrombin (factor IIa) and factor Xa (FXa) are key enzymes at the junction of the intrinsic and extrinsic coagulation pathways and are the most attractive pharmacological targets for the development of novel anticoagulants. Twenty non-amidino N2-thiophencarbonyl- and N2-tosyl anthranilamides 1–20 and six amidino N2-thiophencarbonyl- and N2-tosylanthranilamides 21–26 were synthesized to evaluate their activated partial thromboplastin time (aPTT) and prothrombin time (PT) using human plasma at a concentration of 30 µg/mL in vitro. As a result, compounds 5, 9, and 21–23 were selected to study the further antithrombotic activity. The anticoagulant properties of 5, 9, and 21–23 significantly exhibited a concentration-dependent prolongation of in vitro PT and aPTT, in vivo bleeding time, and ex vivo clotting time. These compounds concentration-dependently inhibited the activities of thrombin and FXa and inhibited the generation of thrombin and FXa in human endothelial cells. In addition, data showed that 5, 9, and 21–23 significantly inhibited thrombin catalyzed fibrin polymerization and mouse platelet aggregation and inhibited platelet aggregation induced by U46619 in vitro and ex vivo. Among the derivatives evaluated, N-(3′-amidinophenyl)-2-((thiophen-2′′-yl)carbonylamino)benzamide (21) was the most active compound.
凝血酶(因子IIa)和因子Xa(FXa)是内在和外在凝血途径交汇处的关键酶,也是开发新型抗凝药物中最具吸引力的药理学靶点。合成20种非脒基N2-噻酚羰基-和N2-对甲苯磺酰基邻氨基苯甲酰胺1-20以及6种脒基N2-噻酚羰基-和N2-对甲苯磺酰基邻氨基苯甲酰胺21-26,以评估它们在体外以30µg/mL浓度下对人血浆的活化部分凝血活酶时间(aPTT)和凝血酶原时间(PT)。结果,选择了化合物5、9和21-23进一步研究其抗血栓活性。5、9和21-23的抗凝特性显著表现为体外PT和aPTT的浓度依赖性延长、体内出血时间延长以及体外凝血时间延长。这些化合物浓度依赖性地抑制了凝血酶和FXa的活性,并抑制了人内皮细胞中凝血酶和FXa的生成。此外,数据显示5、9和21-23显著抑制了凝血酶催化的纤维蛋白聚合和鼠标血小板聚集,以及体外和离体由U46619诱导的血小板聚集。在评估的衍生物中,N-(3'-脒基苯基)-2-((2''-噻吩基)羰基氨基)苯甲酰胺(21)是最活跃的化合物。