both analogues produced dose-related decreases in locomotor activity , with 5'-n-ethylcarboxamidoadenosine ( neca ) exhibiting slightly more potent depressant activity than ( - ) -n- ( 1-methyl-2-phenylethyl ) adenosine ( l-phenylisopropyladenosine ) ( l-pia ) .
C0050789
5
C0001443
adenosine