期刊
EUROPEAN JOURNAL OF PHARMACOLOGY
卷 474, 期 2-3, 页码 137-140出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0014-2999(03)02008-9
关键词
dopamine; dopamine D1 receptor; partial-agonist; phenylbenzazepine
资金
- NIDA NIH HHS [DA-1311] Funding Source: Medline
We prepared a series of 18 novel substituted phenylbenzazepine congeners of the dopamine D1/D5 receptor partial-agonist SKF-83959 (R,S-3-methyl-6-chloro-7,8-dihydroxy-1-[3'-methylphenyl]-2,3,4,5-tetrahydro-1H-benzazepine) and characterized their potency and selectivity in assays of dopamine, 5-HT and adrenoceptors in rat brain tissue or membranes of genetically transfected cells. The R-enantiomer of SKF-83959 (MCL-202) and three other novel racemic 1-phenyl-7,8-dihydroxybenzazepines (MCL-204, -203, and -207) showed very high dopamine D5 receptor affinity; MCL-209 displayed the greatest dopamine D5 receptor affinity. These five potent novel ligands also had >100fold selectivity for dopamine D1 over dopamine D2, D3, scrotonin 5-HT-2A receptors and alpha2-adrenoceptors. They require further functional testing to characterize their intrinsic activity, and for potential stimulant-antagonist actions, as observed with SKF-83959 and MCL-202. (C) 2003 Elsevier B.V. All rights reserved.
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