the effects of adenosine , adenosine analogues ( n6-cyclohexyladenosine ( cha ) , l-n6-phenylisopropyladenosine ( l-pia ) , d-n6-phenylisopropyladenosine ( d-pia ) , n6-methyladenosine and 2-chloroadenosine ) , adenine , inosine , hypoxanthine , cyclic amp and its analogue the dibutyryl cyclic amp ( db cyclic amp ) , and methylxanthines ( theophylline , caffeine and isobutylmethylxanthine ( ibmx ) on compound action potentials were investigated in de-sheathed sciatic nerve preparations of the frog .
C0012054
dibutyryl cyclic amp
C0001455
cyclic amp