in the presence of nbtgr , the order of potency was n6-cyclohexyladenosine ( cha ) greater than or equal to l-n6-phenylisopropyladenosine ( l-pia ) greater than 2-chloroadenosine greater than d-n6-phenylisopropyladenosine ( d-pia ) greater than or equal to adenosine greater than 2'-deoxyadenosine .
C0031484
phenylisopropyladenosine
C0001443
adenosine