the ic50 values for cha , ( - ) -phenylisopropyl adenosine , adenosine-5'-ethylcarboxamide , 2-chloroadenosine , ( + ) -phenylisopropyl adenosine , and theophylline to displace [ 3h ] cha were 3.6 , 2.3 , 15 , 17 , 21 , and 30,500 nm for dorsal horn and 5.1 , 2.7 , 9.8 , 24 , 25 , and 21,000 nm for ventral horn .
C0000275
2-chloroadenosine
C0001443
adenosine