a set of adenosine analogs , such as n6-cyclohexyl- , n6-r- , and s-1-phenyl-2- propyladenosines , 5'-n-ethylcarboxamidoadenosine and its n6-cyclohexyl derivative , 2-chloroadenosine , and 2-phenylaminoadenosine , appear to represent a series of analogs useful for pharmacological characterization of a1 and a2 classes of adenosine receptors .
C0001443
adenosine
C0000275
2-chloroadenosine