Structure−Activity Relationships of Truncated <scp>d</scp>- and <scp>l</scp>-4′-Thioadenosine Derivatives as Species-Independent A<sub>3</sub> Adenosine Receptor Antagonists
作者:Lak Shin Jeong、Shantanu Pal、Seung Ah Choe、Won Jun Choi、Kenneth A. Jacobson、Zhan-Guo Gao、Athena M. Klutz、Xiyan Hou、Hea Ok Kim、Hyuk Woo Lee、Sang Kook Lee、Dilip K. Tosh、Hyung Ryong Moon
DOI:10.1021/jm8008647
日期:2008.10.23
Novel D- and L-4'-thioadenosine derivatives lacking the 4'-hydroxymethyl moiety were synthesized, starting from D-mannose and D-gulonic gamma-lactone, respectively, as potent and selective species-independent A(3) adenosine receptor (AR) antagonists. Among the novel 4'-truncated 2-H nucleosides tested, a N-6-(3-chlorobenzyl) derivative 7c was the most potent at the human A(3) AR (K-i = 1.5 nM), but a N-6-(3-bromobenzyl) derivative 7d showed the optimal species-independent binding affinity.