Synthesis and structure-activity study of protease inhibitors. I. (Guanidinophenyl)propionate and guanidinocinnamate derivatives.
作者:TOSHIYUKI OKUTOME、HIROYUKI KAWAMURA、SEIZO TAIRA、TOYOO NAKAYAMA、SHIGEKI NUNOMURA、MASATERU KURUMI、YOJIRO SAKURAI、TAKUO AOYAMA、SETSURO FUJII
DOI:10.1248/cpb.32.1854
日期:——
Guanidino-ester derivatives were synthesized and evaluated for inhibitory activities against trypsin, plasmin, kallikrein, thrombin and Cl esterase, as well as on in vitro complement-mediated hemolysis. Among the compounds synthesized, phenyl α-ethyl-p-guanidinocinnamate (IVg) and phenyl α-propyl-p-guanidinocinnamate (IVh) exhibited potent and selective Cl esterase inhibition (IC50 : 7×10-6 and 6×10-6 M, respectively) and 6-methyl-3-pyridyl α-ethyl-p-guanidinocinnamate (IVi) markedly suppressed complement-mediated hemolysis (86% inhibition at 1×10-3M).
合成了氨基脲酯衍生物,并评估了其对胰蛋白酶、纤溶酶、激肽释放酶、血栓素和补体酯酶的抑制活性,以及在体外补体介导的溶血作用。在合成的化合物中,苯基α-乙基-p-氨基脲肉桂酸酯(IVg)和苯基α-丙基-p-氨基脲肉桂酸酯(IVh)表现出了强效和选择性Cl酯酶抑制(IC50:7×10^-6和6×10^-6 M,分别),而6-甲基-3-吡啶基α-乙基-p-氨基脲肉桂酸酯(IVi)显著抑制了补体介导的溶血(1×10^-3M下抑制率为86%)。