adenosine and the adenosine receptor agonists , r- and s-n6-phenylisopropyladenosine ( r- and s-pia ) and 5'-n-ethylcarboxamidoadenosine ( neca ) , enhanced [ 3h ] camp accumulation in [ 3h ] adenine-labelled cultured endothelial cells isolated from the microvasculature of guinea pig hearts .
C0001443
adenosine
C0031484
phenylisopropyladenosine