examination of the binding characteristics of the adenosine agonist radioligands [ 3h ] n6-cyclohexyladenosine [ ( 3h ] cha ) , [ 3h ] cyclopentyladenosine [ ( 3h ] cpa ) , and [ 3h ] 5'-n-ethylcarboxamido adenosine [ ( 3h ] neca ) to membranes prepared from pc12 cells showed that the a-1-selective ligands ( cha and cpa ) had minimal binding , which was not amenable to analysis using curve-fitting programs .
C0001443
adenosine
C0050789
neca