By Michael Williams (auth.), Michael Williams (eds.)
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Similarly, the differences in receptor density noted with different ligands (Table 1) might be suggestive of the existence of multiple receptors, but they more probably reflect both species and interexperimental variation. , 1986, 1987b) using [3fi]NECA provided the framework for the description of A2a and A2b receptors. , 1987b), CV 1674 being four-times more active that W'-methyladenosine at the A2a receptor and 50 times less active at the A2b receptor. As more effort is expended in developing analogs of the various stable adenosine agonists and in screening novel structures for potential adenosine receptor activity, the ability to delineate the structure activity requirements for the receptor subtypes will permit the use of computer-assisted molecular modeling to design new ligands.
Shamim,M. ,andWaters,J. (1985) 1,3-Dialkyll-8(p-sulfophenyl)xanthines: Potent water soluble antagonists for Al and Az. receptors. J. Med. Chem 28,487-492. Daly,]. , andShamim,M. T. (1986a) Aoalogues of caffeine and theophylline: Effect of structural alterations in affinity at adenosine receptors. J. Med. Chem. 29, 1305-1308. Daly,J. ,Padgett, W. , and Shamim, M. T. (1986b) Analogs of 1,3-dipropyl8-phenylxanthine: Enhancement of selectivity at Al adenosine receptors by aryl substituents. J. Med.
And Wade, R. (1982) CGS 8216: Receptor binding characteristics of a potent benzodiazepine receptor antagonist. Life Sci. 30,363-372. Daly, J. W. (1985) Adenosine receptors in the central nervous system: structureactivity relationships for agonists and antagonists, in Purines : Pharmacology and Physiological Roles. ), Macmillan,London,pp. 5-15. Daly,J. ,Padgett, W. ,Shamim,M. ,andWaters,J. (1985) 1,3-Dialkyll-8(p-sulfophenyl)xanthines: Potent water soluble antagonists for Al and Az. receptors.
Adenosine and Adenosine Receptors by Michael Williams (auth.), Michael Williams (eds.)