binding affinities of 28 adenosine analogs at a1 adenosine receptors ( rat whole brain membranes , [ 3h ] n6-cyclohexyladenosine , cha ) , and at a2 adenosine receptors ( rat striatal membranes , [ 3h ] neca ) were compared to their ec25 values for decreasing heart rate and increasing coronary flow in the isolated rat heart .
C0001443
adenosine
C0050789
neca