Synthesis and evaluation of N6-substituted apioadenosines as potential adenosine A3 receptor modulators.
Bioorg Med Chem
; 22(15): 4257-68, 2014 Aug 01.
Article
in En
| MEDLINE
| ID: mdl-24931275
ABSTRACT
Adenosine receptors (ARs) trigger signal transduction pathways inside the cell when activated by extracellular adenosine. Selective modulation of the A3AR subtype may be beneficial in controlling diseases such as colorectal cancer and rheumatoid arthritis. Here, we report the synthesis and evaluation of ß-D-apio-D-furano- and α-D-apio-L-furanoadenosines and derivatives thereof. Introduction of a 2-methoxy-5-chlorobenzyl group at N(6) of ß-D-apio-D-furanoadenosine afforded an A3AR antagonist (10c, Ki=0.98 µM), while a similar modification of an α-D-apio-L-furanoadenosine gave rise to a partial agonist (11c, Ki=3.07 µM). The structural basis for this difference was examined by docking to an A3AR model; the antagonist lacked a crucial interaction with Thr94.
Key words
Full text:
1
Database:
MEDLINE
Main subject:
Adenosine
/
Receptor, Adenosine A3
/
Adenosine A3 Receptor Agonists
Limits:
Animals
/
Humans
Language:
En
Year:
2014
Type:
Article