adenosine and its analogs ( - ) -n6-phenylisopropyladenosine and 5'-n-ethylcarboxamideadenosine inhibit camp and cgmp phosphodiesterase activity in guinea-pig atrial and ventricular preparations at concentrations of 100 mumol l-1 and higher .
C0001443
adenosine
C0031484
phenylisopropyladenosine