to characterize adenosine-mediated vascular responses , synthetic a1 and a2 receptor agonists ( n-ethyl carboxamido adenosine [ neca ] , 2-chloro adenosine [ 2ca ] , or cyclohexyl adenosine [ cha ] ) , the parent compound ( adenosine [ ado ] ) , an uptake inhibitor ( dipyridamole [ dipyrid ] ) or a nonselective , competitive antagonist ( 8-phenyl theophylline [ 8ptheo ] ) were topically applied to 20-60 microns arterioles in the subcutaneous microcirculation of the hamster .
C0000275
2-chloro adenosine
C0001443
adenosine