Novel amidine-containing peptidyl phosphonates as irreversible inhibitors for blood coagulation and related serine proteases
作者:Jozef Oleksyszyn、Bogdan Boduszek、Chih-Min Kam、James C. Powers
DOI:10.1021/jm00028a004
日期:1994.1
e diphenyl esters containing the 4-amidinophenyl group were synthesized and tested as irreversible inhibitors for thrombin and other trypsin-like enzymes. These phosphonates irreversibly inhibited several coagulation enzymes and trypsin. Boc-D-Phe-Pro-(4-AmPhGly)P(OPh)2 is the best human thrombin inhibitor in the series with a k(obs)/[I] value of 11,000 M-1 s-1, and it inhibits thrombin more than 5-fold
合成了一系列含有4-ami基苯基的新的肽基(α-氨基烷基)膦酸二苯酯,并作为凝血酶和其他胰蛋白酶样酶的不可逆抑制剂进行了测试。这些膦酸酯不可逆地抑制了几种凝血酶和胰蛋白酶。Boc-D-Phe-Pro-(4-AmPhGly)P(OPh)2是该系列中最佳的人类凝血酶抑制剂,其ak(obs)/ [I]值为11,000 M-1 s-1,并且可以抑制凝血酶比其他测试酶高出5倍以上。Z-(4-AmPhGly)P(OPh)2是血浆激肽释放酶的最佳抑制剂,其ak(obs)/ [I]值为18,000 M-1 s-1。通常,(4-AmPhGly)P(OPh)2衍生物比相应的(4-AmPhe)P(OPh)2衍生物是凝血酶和胰蛋白酶的更好抑制剂,后者含有一个额外的CH2,可将a基苯基与肽骨架分开。mid基膦酸酯不抑制乙酰胆碱酯酶,并且在中性缓冲液中化学稳定。另外,被抑制的胰蛋白酶衍生物在除去过量的抑制剂并在pH 7