The synthesis of several bioisosteric analogs based on the 3-OH-phenoxyethylamine dopamine D2 agonist template (i.e., 3) is described. The benzimidazol-2-ones and benzthioimidazol-2-ones (7-10) and 2-trifluoromethyl-benzimidazole (13) were observed to have excellent affinity for the D2 receptor.
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