Adenosine Kinase Inhibitors. 6. Synthesis, Water Solubility, and Antinociceptive Activity of 5-Phenyl-7-(5-deoxy-β-<scp>d</scp>-ribofuranosyl)pyrrolo[2,3-<i>d</i>]pyrimidines Substituted at C4 with Glycinamides and Related Compounds
作者:Brett C. Bookser、Bheemarao G. Ugarkar、Michael C. Matelich、Robert H. Lemus、Matthew Allan、Megumi Tsuchiya、Masami Nakane、Atsushi Nagahisa、James B. Wiesner、Mark D. Erion
DOI:10.1021/jm050394a
日期:2005.12.1
4-(Phenylamino)-5-phenyl-7-(5-deoxy-beta-D-ribofuranosyl)pyrrolo[2,3-d]pyrimidine 1 and related compounds known as "diaryltubercidin" analogues are potent inhibitors of adenosine kinase (AK) and are orally active in animal models of pain such as the rat formalin paw model (GP3269 ED50= 6.4 mg/kg). However, the utility of this compound class is limited by poor water solubility that can be attributed
4-(苯氨基)-5-苯基-7-(5-脱氧-β-D-呋喃呋喃糖基)吡咯并[2,3-d]嘧啶1和相关化合物被称为“二芳基丁二醛”类似物,是腺苷激酶(AK)的有效抑制剂。 ),并且在疼痛动物模型(例如大鼠福尔马林爪模型(GP3269 ED50 = 6.4 mg / kg))中具有口服活性。但是,该化合物类别的实用性受到水溶性差的限制,这可归因于固态的平行C4和C5芳基环的堆叠(化合物1和GP3269的pH 7.4溶解度< 0.05微克/毫升)。为了增加水溶性,疏水性C 4-苯基氨基取代基被更亲水的甘氨酰胺取代。该修饰导致改善的水溶性,同时保持AK抑制效力。研究了类似物,其中甘氨酰胺部分的变化与碱基和糖的变化结合在一起。铅化合物4-N-(N-环丙基氨基甲酰基甲基)氨基-5-苯基-7-(5-脱氧-β-D-呋喃呋喃糖基)吡咯并[2,3-d]嘧啶(16c)(IC50 = 3 nM在pH 7.4时,水溶解度=