the ki values for cyclohexyladenosine , ( + ) - and ( - ) -phenylisopropyladenosine , 2-chloroadenosine , and adenosine 5'-ethylcarboxamide were 0.8 , 0.9 , 2.6 , 12 , and 54 microm , respectively .
C0031484
phenylisopropyladenosine
C0001443
adenosine