from the order of potency : cyclohexyladenosine greater than ( - ) phenylisopropyladenosine [ ( - ) pia ] greater than 5'-n-ethylcarboxamide-adenosine ( neca ) greater than 2-chloro-adenosine greater than adenosine ( + ) phenylisopropyladenosine greater than atp , the inhibitory adenosine receptor was classified as a1- ( ri- ) receptor .
C0050789
5
C0001443
adenosine