Structure−Activity Relationships of 2,<i>N</i><sup>6</sup>,5‘-Substituted Adenosine Derivatives with Potent Activity at the A<sub>2B</sub> Adenosine Receptor
作者:Hayamitsu Adachi、Krishnan K. Palaniappan、Andrei A. Ivanov、Nathaniel Bergman、Zhan-Guo Gao、Kenneth A. Jacobson
DOI:10.1021/jm061278q
日期:2007.4.1
2, N-6, and 5'-substituted adenosine derivatives were synthesized via alkylation of 2-oxypurine nucleosides leading to 2-arylalkylether derivatives. 2-(3-(Indolyl)ethyloxy)adenosine 17 was examined in both binding and cAMP assays and found to be a potent agonist of the human A(2B)AR. Simplification, altered connectivity, and mimicking of the indole ring of 17 failed to maintain A2BAR potency. Introduction of N-6-ethyl or N-6-guanidino substitution, shown to favor A2BAR potency, failed to enhance potency in the 2-( 3-( indolyl)ethyloxy) adenosine series. Indole 5 ''- or 6 ''-halo substitution was favored at the A(2B)AR, but a 5'-N-ethylcarboxyamide did not further enhance potency. 2-(3 ''-(6 ''-Bromoindolyl)ethyloxy)adenosine 28 displayed an A(2B)AR EC50 value of 128 nM, that is, more potent than the parent 17 (299 nM) and similar to 5'-N-ethylcarboxamidoadenosine (140 nM). Compound 28 was a full agonist at A(2B) and A(2A)ARs and a low efficacy partial agonist at A(1) and A(3)ARs. Thus, we have identified and optimized 2-(2-arylethyl) oxo moieties in AR agonists that enhance A(2B)AR potency and selectivity.
[EN] A2 ADENOSINE RECEPTOR AGONISTS<br/>[FR] AGONISTES DES RÉCEPTEURS D'ADÉNOSINE A2
申请人:US GOV HEALTH & HUMAN SERV
公开号:WO2009006089A3
公开(公告)日:2009-04-09
PYRROLES SUBSTITUES AVEC DES OLIGONUCLEOTIDES
申请人:BIOMERIEUX SA
公开号:EP1578759A1
公开(公告)日:2005-09-28
MONOMERS AND OLIGONUCLEOTIDES COMPRISING CYCLOADDITION ADDUCT(S)
申请人:Manoharan Muthiah
公开号:US20130053334A1
公开(公告)日:2013-02-28
The invention features compounds of formula (V) or(XII). In one embodiment, the invention relates compounds and processes for conjugating ligand to oligonucleotide. The invention further relates to methods for treating various disorders and diseases such as viral infections, bacterial infections, parasitic infections, cancers, allergies, autoimmune diseases, immunodeficiencies and immunosuppression.