consequently , adenosine radioligands which are useful in brain such as l- [ 3h ] phenylisopropyladenosine , [ 3h ] cyclohexyladenosine , [ 3h ] -2-chloroadenosine and l- [ 125i ] hydroxyphenylisopropyladenosine are of limited usefulness in heart , due to a high ratio of nonspecific to specific binding .
C0001443
adenosine
C0000275
2-chloroadenosine