Structural Optimization of Thiol-Based Inhibitors of Glutamate Carboxypeptidase II by Modification of the P1‘ Side Chain
作者:Pavel Majer、Bunda Hin、Doris Stoermer、Jessica Adams、Weizheng Xu、Bridget R. Duvall、Greg Delahanty、Qun Liu、Marigo J. Stathis、Krystyna M. Wozniak、Barbara S. Slusher、Takashi Tsukamoto
DOI:10.1021/jm051019l
日期:2006.5.1
carboxypeptidase II (GCP II). 3-(2-Carboxy-5-mercaptopentyl)benzoic acid 6c was found to be the most potent inhibitor with an IC(50) value of 15 nM, 6-fold more potent than 2-(3-mercaptopropyl)pentanedioic acid (2-MPPA), a previously discovered, orally active GCP II inhibitor. Subsequent SAR studies have revealed that the phenoxy and phenylsulfanyl analogues of 6c, 3-(1-carboxy-4-mercaptobutoxy)benzoic acid 26a
已经合成了一系列在P1'位置含有苄基部分的基于硫醇的抑制剂,并测试了它们抑制谷氨酸羧肽酶II(GCP II)的能力。发现3-(2-羧基-5-巯基戊基)苯甲酸6c是最有效的抑制剂,IC(50)值为15 nM,比2-(3-巯基丙基)戊二酸的效力高6倍(2 -MPPA),一种先前发现的口服活性GCP II抑制剂。随后的SAR研究表明,6c,3-(1-羧基-4-巯基丁氧基)苯甲酸26a和3-[(1-羧基-4-巯基丁基)硫代]苯甲酸26b的苯氧基和苯硫烷基类似物也具有很强的效力。对GCP II的抑制活性。在神经性疼痛的大鼠慢性收缩损伤(CCI)模型中,化合物6c和26a口服后可明显减少痛觉过敏(1。