Nucleoside-5′-monophosphates as Prodrugs of Adenosine A<sub>2A</sub> Receptor Agonists Activated by ecto-5′-Nucleotidase†Contribution to celebrate the 100th anniversary of the Division of Medicinal Chemistry of the American Chemical Society.
作者:Ali El-Tayeb、Jamshed Iqbal、Andrea Behrenswerth、Michael Romio、Marion Schneider、Herbert Zimmermann、Jürgen Schrader、Christa E. Müller
DOI:10.1021/jm900538v
日期:2009.12.10
Prodrugs of adenosine A2A receptor agonists were developed that are activated by ecto-5′-nucleotidase (ecto-5′-NT, CD73). Because ecto-5′-NT is upregulated in inflamed tissue, the A2A agonists are expected to be released from their prodrug form at the sites of inflammation. 2-(Ar)alkyl-substituted AMP derivatives were synthesized and investigated. Certain 2-substituted AMP derivatives, including 2-hexylthio-AMP
开发了腺苷A 2A受体激动剂的前药,它们被ecto-5'-核苷酸酶(ecto-5'-NT,CD73)激活。由于ecto-5'-NT在发炎的组织中上调,因此A 2A激动剂有望在炎症部位从其前药形式释放出来。合成并研究了2-(Ar)烷基取代的AMP衍生物。某些2-取代的AMP衍生物,包括2-己基硫基-AMP,2-环戊基硫基-AMP,2-环己基甲硫基-AMP和2-环己基乙硫基-AMP被ecto-5'-NT接受为底物,并易于转化为相应的2取代的腺苷衍生物。2-环己基乙硫基取代是ecto-5'-NT和腺苷A 2A的良好折衷方案受体。相应的AMP衍生物(12g)是与AMP本身相似的良好底物,而所得的腺苷衍生物(11g)是相对有效的A 2A激动剂(放射配体与大鼠脑纹状体膜的结合力:K i = 372 nM;抑制抗-在小鼠CD4 +细胞中CD3 /抗CD28诱导的IFN-γ释放:EC 50 = 50 nM