the adenosine analogs , r ( - ) -n6-2- ( phenylisopropyl ) adenosine ( r ( - ) -pia ) and 5'- ( n-ethyl ) carboxamidoadenosine ( neca ) , decreased locomotor activity of control and caffeine-treated ( 0.5 mg/ml ) rats ;
C0001443
adenosine
C0050789
neca