Synthesis and Biochemical Evaluation of <i>N</i>-(4-Phenylthiazol-2-yl)benzenesulfonamides as High-Affinity Inhibitors of Kynurenine 3-Hydroxylase
作者:Stephan Röver、Andrea M. Cesura、Philipp Huguenin、Rolf Kettler、Andre Szente
DOI:10.1021/jm970467t
日期:1997.12.1
we describe the synthesis, structure-activity relationship (SAR), and biochemical characterization of N-(4-phenylthiazol-2-yl)benzenesulfonamides as inhibitors of kynurenine 3-hydroxylase. The compounds 3,4-dimethoxy-N-[4-(3-nitrophenyl)thiazol-2-yl]benzenesulfonamide 16 (IC50 = 37 nM, Ro-61-8048) and 4-amino-N-[4-[2-fluoro-5-(trifluoromethyl)phenyl]-thiazol-2-yl] benzenesulfonamide 20 (IC50 = 19 nM)
在本文中,我们描述了N-(4-苯基噻唑-2-基)苯磺酰胺作为犬尿氨酸3-羟化酶抑制剂的合成,构效关系(SAR)和生化特性。化合物3,4-二甲氧基-N- [4-(3-硝基苯基)噻唑-2-基]苯磺酰胺16(IC50 = 37 nM,Ro-61-8048)和4-氨基-N- [4- [2发现在体外,-氟-5-(三氟甲基)苯基]-噻唑-2-基]苯磺酰胺20(IC50 = 19 nM)是该酶的高亲和力抑制剂。此外,两种化合物在口服后均能阻断大鼠和沙鼠犬尿氨酸3-羟化酶,沙鼠大脑中的ED50在3-5μmol/ kg范围内。在大鼠的微透析实验中,有16剂剂量依赖性地增加了细胞外海马液中的犬尿酸浓度。口服100摩尔/千克的剂量可得出7。尿酸流出量增加了5倍。这些新化合物应允许详细调查神经元损伤后犬尿氨酸途径的病理生理作用。