addition to the superfusion medium of the adenosine analog , 5'-n-ethylcarboxamidoadenosine ( neca ; 10 nm ) , inhibited the release of 5-ht and da , and to a lesser extent ne , whereas 100-fold higher concentrations of adenosine itself and the adenosine analog , r-n6-phenylisopropyladenosine , were required to achieve comparable levels of inhibition .
C0001443
adenosine
C0031484
phenylisopropyladenosine