Active center-directed inhibitors of plasmin were designed based on the structure of specific substrates of plasmin and then synthesized. Their effects on plasmin were examined and the structure-inhibitory activity relationship was studied. Nα-trans-4-Aminomethylcyclohexanecarbonyllysine 4-benzoylanilide (Tra-Lys-BZA) inhibited plasmin activities toward S-2251 and fibrin with IC50 values of 15 and 6.1 μM, respectively and Nα-trans-4-aminomethylcyclohexanecarbonyllysine 4-benzylpiperidine amide (Tra-Lys-BPP) did not show any detectable inhibitory activity. Moreover, it was revealed that Tra-Lys-4-methoxycarbonylanilide inhibited plasma kallikrein more potently than plasmin.
基于纤溶酶的特定底物结构设计了活性中心导向的纤溶酶
抑制剂,并进行了合成。研究了它们对纤溶酶的效应以及结构-抑制活性的关系。Nα-反式-4-
氨甲基环己烷羰基赖
氨酸4-
苯甲酰
苯胺(Tra-Lys-
BZA)对S-2251和
纤维蛋白的IC50值分别为15和6.1μM,而Nα-反式-4-
氨甲基环己烷羰基赖
氨酸
4-苄基哌啶酰胺(Tra-Lys-
BPP)则没有显示出任何可检测的抑制活性。此外,研究发现Tra-Lys-4-甲
氧羰基
苯胺对血浆激肽释放酶的抑制作用比纤溶酶更强。