Various amino-and guanidino-substituted naphthoates and tetrahydronaphthoates were synthesized and evaluated for inhibitory activities against trypsin, plasmin, kallikrein, thrombin and Cl esterase. Among these compounds, phenyl 4-guanidino-1-naphthoate (IIIj) and phenyl 6-guanidino-1-naphthoate (IIIl) exhibited potent and selective trypsin inhibition (IC50 : 4×10-7 and 5×10-8 M, respectively) and phenyl 7-guanidino-1, 2, 3, 4-tetrahydro-1-naphthoate (Vb) and p-ethoxycarbonylphenyl 7-guanidino-1, 2, 3, 4-tetrahydro-1-naphthoate (Vg) had selective inhibitory activities against thrombin (IC50 : 4×10-5 and 1×10-5 M, respectively).
合成了多种
氨基和
氨基
脲取代的
萘酸酯和四氢
萘酸酯,并评估了它们对胰
蛋白酶、纤溶酶、激肽酶、凝血酶和C1
酯酶的抑制活性。在这些化合物中,苯基4-
氨基
脲-1-
萘酸酯(IIIj)和苯基6-
氨基
脲-1-
萘酸酯(IIIl)表现出强效选择性的胰
蛋白酶抑制(IC50:4×10^-7和5×10^-8 M,分别),而苯基7-
氨基
脲-1, 2, 3, 4-四氢-1-
萘酸酯(Vb)和对乙氧基羧基苯基7-
氨基
脲-1, 2, 3, 4-四氢-1-
萘酸酯(Vg)则对凝血酶具有选择性抑制活性(IC50:4×10^-5和1×10^-5 M,分别)。