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  • Title: Isomeric selectivity at dopamine D3 receptors.
    Author: Baldessarini RJ, Kula NS, McGrath CR, Bakthavachalam V, Kebabian JW, Neumeyer JL.
    Journal: Eur J Pharmacol; 1993 Aug 03; 239(1-3):269-70. PubMed ID: 8223909.
    Abstract:
    Racemic 7-hydroxy-N,N-dipropylaminotetralin (7-OH-DPAT) shows greater affinity for limbic-selective dopamine D3 receptors than for more ubiquitous dopamine D2 receptors. R(+)-7-OH-DPAT was prepared and evaluated in radioreceptor assays using membranes of fibroblasts expressing the human dopamine D3 receptor as well as rat striatal membranes containing dopamine D2 receptors. This enantiomer had 2-fold greater D3 affinity than the racemate and similarly greater D3 vs. D2 selectivity (64-fold). The results may facilitate development of D3 selective agents and evaluation of functions of these receptors.
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