1-(5-Carboxyindol-1-yl)propan-2-one Inhibitors of Human Cytosolic Phospholipase A<sub>2</sub>α with Reduced Lipophilicity: Synthesis, Biological Activity, Metabolic Stability, Solubility, Bioavailability, And Topical in Vivo Activity
作者:Andreas Drews、Stefanie Bovens、Kirsten Roebrock、Cord Sunderkötter、Dirk Reinhardt、Michael Schäfers、Andrea van der Velde、Alwine Schulze Elfringhoff、Jörg Fabian、Matthias Lehr
DOI:10.1021/jm1001088
日期:2010.7.22
acids with 3-aryloxy-2-oxopropyl residues in position 1 were previously reported to be potent inhibitors of human cytosolic phospholipase A2α (cPLA2α). In continuation of our attempts to develop clinical active cPLA2α inhibitors, a series of structurally related indole-5-carboxylic acids with reduced lipophilicity was synthesized and tested for cPLA2α-inhibitory potency. Furthermore, the thermodynamic solubility
在位置1 3-芳氧基-2-氧代丙基残基吲哚-5-羧酸先前报道为人类的有效抑制剂胞浆型磷脂酶甲2 α(与cPLA 2 α)。在我们试图开发临床活性与cPLA延续2 α抑制剂,具有降低的亲油性合成并用于与cPLA测试一系列结构上相关的吲哚-5-羧酸的2 α-抑制效力。此外,评估了这些化合物在大鼠肝微粒体中的热力学溶解度及其代谢稳定性。化合物36对分离的酶的IC 50为0.012μM ,是最有效的cPLA 2之一在结构活性关系研究期间出现的α抑制剂。同时,在所有新的目标化合物中,36的水溶性最高(在pH 7.4时为212μg/ mL)。尽管具有这些有利的特性,但在小鼠中口服施用36(100 mg / kg)仅会导致血浆中该物质的浓度降低。静脉注射36(10 mg / kg)后观察到非常高的血浆清除率。然而,在接触性皮炎的局部鼠模型中,36显示出明显的抗炎体内活性。