the order of inhibitory potency was : l-n6-phenylisopropyladenosine ( l-pia ) = n6-cyclohexyladenosine ( cha ) = 5'-n-cyclopropylcarboxamide adenosine ( ncpca ) greater than or equal to 5'-n-ethylcarboxamide adenosine ( neca ) = 2-chloroadenosine greater than adenosine greater than d-pia .
C0031484
l
C0001443
adenosine