the order of potency for adenosine analogues was : 5'-n-ethylcarboxamidoadenosine ( neca ) greater than l-phenylisopropyladenosine greater than cyclohexyladenosine greater than d-phenylisopropyladenosine greater than 2-chloroadenosine greater than adenosine , consistent with adenosine actions modulated through p1-purine receptors of the a2-subtype .
C0031484
phenylisopropyladenosine
C0001443
adenosine