Conformationally Restricted Dipeptide Amides as Potent and Selective Neuronal Nitric Oxide Synthase Inhibitors
作者:Haitao Ji、José A. Gómez-Vidal、Pavel Martásek、Linda J. Roman、Richard B. Silverman
DOI:10.1021/jm0604124
日期:2006.10.1
the potency and one-half to one-third the selectivity of 2 against iNOS (inducible nitric oxide synthase) and eNOS (endothelial nitric oxide synthase), respectively. 3-N-(l-Arg(NO)(2))-trans-3-amino-l-prolineamide (6) is as potent an inhibitor of nNOS (neuronal nitric oxide synthase) as 2; selectivity for nNOS over iNOS is half of that for 2, but the selectivity for nNOS over eNOS is almost double that
已经合成了一种有效的和选择性的神经元一氧化氮合酶抑制剂的四个新的构象限制类似物,1-硝基精氨酰基-1,2,4-二氨基丁酰胺(1)。4-N-(1-Arg(NO(2))-反-4-氨基-1-脯氨酸(2)的Nα-甲基和Nα-苄基衍生物(分别为3和4)为也是选择性抑制剂,但3的效价和选择性较弱;类似物4对iNOS(诱导型一氧化氮合酶)和eNOS(内皮型一氧化氮合酶)的效价只有三分之一,选择性为二分之一至三分之一3-N-(1-Arg(NO)(2))-反-3-氨基-1-脯氨酸(6)与nNOS(神经型一氧化氮合酶)抑制剂的作用一样强,为2; nNOS在iNOS上的选择性是2的一半,但nNOS在eNOS上的选择性几乎是2的两倍。相应的顺式异构体(5)是nNOS的弱抑制剂。这些结果得到计算机建模的支持。