the potency of a series of xanthine derivatives as adenosine antagonists was studied in fat cells ( a1-receptors ) and hippocampal slices ( a2-receptors ) and on l- [ 3h ] phenylisopropyladenosine ( pia ) binding in membranes from rat cortex .
C0001443
adenosine
C0031484
phenylisopropyladenosine