Synthesis of an <i>o</i>-Nitrobenzyl Attached A<sub>1</sub> Adenosine Receptor Antagonist, a Prodrug Approach
作者:HeXi Chang、Carol Ensinger、Robert D. McCargar、Bruno M. Vittimberga
DOI:10.1081/scc-120021980
日期:2003.1.8
The o-nitrobenzyl group, possessing distinct advantage of being photolabile under mild conditions, was successfully connected to 8-(5,6-epoxynorbornan-2-yl)-1,3-dipropylxanthine (5), a high specific A(1) adenosine receptor antagonist. The resulting compound 4 would have potential use as a prodrug.
Synthesis and Biological Evaluation of the Enantiomers of the Potent and Selective A<sub>1</sub>-Adenosine Antagonist 1,3-Dipropyl-8-[2-(5,6-epoxynorbonyl)]- xanthine
作者:Jürg R. Pfister、Luiz Belardinelli、Gavin Lee、Robert T. Lum、Peter Milner、William C. Stanley、Joel Linden、Stephen P. Baker、George Schreiner
DOI:10.1021/jm970013w
日期:1997.6.1
rearrangement. The binding affinities of the enantiomers 8 and 12 and the racemate 4 at guinea pig, rat, and cloned human A1- and A2a-adenosinereceptor subtypes were determined. The S-enantiomer 12 (CVT-124) appears to be one of the more potent and clearly the most A1-selective antagonist reported to date, with K1 values of 0.67 and 0.45 nM, respectively, at the rat and cloned human A1-receptors and with 1800-fold