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  • Title: Facile syntheses of potent dopaminergic argonists and their effect on neurotransmitter release.
    Author: Horn AS, Grol CJ, Dijkstra D, Mulder AH.
    Journal: J Med Chem; 1978 Aug; 21(8):825-8. PubMed ID: 29125.
    Abstract:
    The facile syntheses of important intermediates used in the preparation of the two potent dopaminergic argonists, 2-amino-6,7-dihydroxytetrahydronaphthalene (11) (referred to by some authors as ADTN) and its 5,6-dihydroxyl isomer 12, are described. Thus 6,7-dimethyoxy-2-tetralone has been prepared in two steps and 5,6-dimethoxy-2-tetralone in three steps both from commercially available materials. The effects of 11, 12, and the noncatechol analogue, 2-aminotetrahydronaphthalene (ATN), on radioactive neurotransmitter release have been studied in vitro using rat brain slices. It has been shown that both 11 and 12, at a concentraiton of 2 micron, cause a release of [3H]-DA and NA, 11 being more potent than 12 in releasing [3H]-DA. ATN (2 micron) was found to be inactive in these experiments which shows the importance of the catechol function in this uptake--release process.
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