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. 2017 Mar 10;7:44201. doi: 10.1038/srep44201

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Copyright © 2017, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Structures of the experimentally tested D2R-agonist (a) and -antagonist (b) VS hits. The 17 compounds can be classified into natural food constituents (delphinidin, hordenine, kukoamine A, pyrraline, salsolinol, roquefortine C), further compounds from natural sources (fumigaclavine A, leonurine, muscimol, ajmalicine, dihydroberberine, emetine), and food contaminants (clenbuterol, fenpropimorph, halofuginone, robenidine, sarafloxacin).