With the aim of obtaining selective synthetic inhibitors of plasmin and plasma kallikrein, D-Ile-Phe-Lys-CH2Cl, Ile-Phe-Lys-CH2Cl, D-Ile-Phe-Arg-CH2Cl and Ile-Phe-Arg-CH2Cl were synthesized and their inhibitory activity against plasmin, plasma kallikrein and other trypsin-like serine proteinases was examined. Among them, D-Ile-Phe-Arg-CH2Cl exhibited a highly selective inhibitory activity against plasma kallikrein, yet D-Ile-Phe-Lys-CH2Cl exhibited nearly the same order of inhibitory activity against plasmin as well as plasma kallikren.
为了获得针对纤溶酶和血浆激肽释放酶的选择性合成
抑制剂,合成了D-Ile-Phe-Lys-
CH2Cl、Ile-Phe-Lys- 、D-Ile-Phe-Arg- 和Ile-Phe-Arg- ,并检测了它们对纤溶酶、血浆激肽释放酶和其他类胰
蛋白酶丝氨酸蛋白酶的抑制活性。其中,D-Ile-Phe-Arg- 表现出对血浆激肽释放酶的高度选择性抑制活性,而D-Ile-Phe-Lys- 对纤溶酶和血浆激肽释放酶的抑制活性几乎相同。