Design, Synthesis, and Structure−Activity Relationships of Aminopyridine <i>N</i>-Oxides, a Novel Scaffold for the Potent and Selective Inhibition of p38 Mitogen Activated Protein Kinase
作者:Wenceslao Lumeras、Francisco Caturla、Laura Vidal、Cristina Esteve、Cristina Balagué、Adelina Orellana、María Domínguez、Ramón Roca、Josep M. Huerta、Núria Godessart、Bernat Vidal
DOI:10.1021/jm9008604
日期:2009.9.10
A novel series of aminopyridine N-oxides were designed, synthesized, and tested for their ability to inhibit p38α MAP kinase. Some of these compounds showed a significant reduction in the LPS-induced TNFα production in human whole blood. Structure−activity relationship studies revealed that N-oxide oxygen was essential for activity and was probably a determinant factor for a marked selectivity against
设计,合成和测试了一系列新的氨基吡啶N-氧化物抑制p38αMAP激酶的能力。这些化合物中的一些显示出人全血中LPS诱导的TNFα产生的显着减少。结构-活性关系研究表明,N-氧对于活性至关重要,并且可能是针对其他相关激酶的显着选择性的决定因素。化合物45被确定为有效的和选择性的p38α抑制剂,在功效和药代动力学之间具有适当的平衡。在急性炎症小鼠模型中证明了45的体内功效可降低TNFα水平(ED 50当在LPS给药前1.5 h口服时,LPS诱导的TNFα产生= 1 mg / kg)。口服给药(ED 50 = 4.5 mg / kg)时,在已确诊疾病的大鼠的慢性佐剂性关节炎模型中进一步证明了45的口服功效。