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  • Title: Potent and selective ligands for the dopamine transporter (DAT): structure-activity relationship studies of novel 4-[2-(diphenylmethoxy)ethyl]-1-(3-phenylpropyl)piperidine analogues.
    Author: Dutta AK, Coffey LL, Reith ME.
    Journal: J Med Chem; 1998 Feb 26; 41(5):699-705. PubMed ID: 9513598.
    Abstract:
    Molecular structural modifications of 4-[2-(diphenylmethoxy)ethyl]-1-(3-phenylpropyl)piperidine (1a), a dopamine transporter (DAT)-specific ligand, generated several novel analogues. Biological activities of these new molecules for their binding to the DAT and serotonin transporter (SERT) were evaluated in rat striatal membranes. Some of these new analogues were more potent and selective than GBR 12909 when their binding to the DAT relative to SERT was compared. Thus compounds 9 and 19a were among the most potent (IC50 = 6.6 and 6.0 nM, respectively) and selective (DAT/SERT = 33.8 and 30.0, respectively) compounds in this series, and they were more active than GBR 12909 (IC50 = 14 nM, DAT/SERT = 6.1). Introduction of a double bond in the N-propyl side chain of these molecules did not influence their activities to a great extent. Bioisosteric replacement of the aromatic phenyl group by a thiophene moiety produced some of the most potent compounds in this series.
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