adenosine , ( - ) n6-phenylisopropyladenosine ( pia ) and 5'-n-ethyl-carboxamide adenosine ( neca ) were approximately equipotent , and these responses were not prevented by theophylline , quinidine , 2,2'-pyridylisatogen tosylate , phentolamine , methysergide , dipyridamole , hexobendine or indomethacin .
C0031484
phenylisopropyladenosine
C0001443
adenosine