[EN] METHANOCARBA ADENOSINE DERIVATIVES AND DENDRIMER CONJUGATES THEREOF<br/>[FR] DÉRIVÉS DE MÉTHANOCARBA-ADÉNOSINE ET CONJUGUÉS DE DENDRIMÈRE DE CEUX-CI
申请人:US HEALTH
公开号:WO2011068978A1
公开(公告)日:2011-06-09
Disclosed are (N)-methanocarba adenine nucleosides, e.g., of the formula (I): as A3 adenosine receptor agonists, pharmaceutical compositions comprising such nucleosides, and a method of use of these nucleosides, wherein A, a, R2, and R3 are as defined in the specification. These nucleosides are contemplated for use in the treatment a number of diseases, for example, inflammation, cardiac ischemia, stroke, asthma, diabetes, and cardiac arrhythmias. Also disclosed are conjugates comprising a dendrimer and one or more ligands, which are functionalized congeners of an agonist or antagonist of a receptor of the G-protein coupled receptor (GPCR) superfamily. Such conjugates are have the potential of being used as dual agonists, dual antagonists, or agonist/antagonist combinations.
Selective A3 adenosine receptor antagonists derived from nucleosides containing a bicyclo[3.1.0]hexane ring system
作者:Artem Melman、Ben Wang、Bhalchandra V. Joshi、Zhan-Guo Gao、Sonia de Castro、Cara L. Heller、Soo-Kyung Kim、Lak Shin Jeong、Kenneth A. Jacobson
DOI:10.1016/j.bmc.2008.08.007
日期:2008.9
We have prepared 50-modified derivatives of adenosine and a corresponding (N)-methanocarba nucleoside series containing a bicyclo[3.1.0]hexane ring system in place of the ribose moiety. The compounds were examined in binding assays at three subtypes of adenosine receptors (ARs) and in functional assays at the A3 AR. The H-bonding ability of a group of 9-riboside derivatives containing a 50-uronamide
我们已经制备了 50 种修饰的腺苷衍生物和相应的 (N)-methanocarba 核苷系列,其中含有双环 [3.1.0] 己烷环系统代替核糖部分。在三种亚型腺苷受体 (AR) 的结合试验和 A3 AR 的功能试验中检查了这些化合物。NH 的修饰降低了一组含有 50-尿醛酰胺部分的 9-核苷衍生物的 H 键合能力;然而,这些衍生物没有显示出作为选择性 A3 AR 拮抗剂所需的活性,如 50-N,N-二甲基脲酰胺所发生的那样。然而,缺乏 40-羟甲基的截短的 (N)-methanocarba 类似物是人类 A3 AR 的高效选择性拮抗剂。这些化合物是使用 50-羧基中间体的还原性自由基脱羧从 D-核糖合成的。一种效率较低的合成方法始于 L-核糖,它类似于 (N)-methanocarba A3AR 激动剂的已发表合成。化合物 33b-39b(N6-3-卤代苄基和相关的芳烷基衍生物)是有效的 A3AR