Journal
JOURNAL OF MEDICINAL CHEMISTRY
Volume 50, Issue 21, Pages 5076-5089Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jm0705612
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The discovery of new highly potent and selective dopamine D-3 receptor antagonists has recently permitted characterization of the role of the dopamine D-3 receptor in a wide range, of preclinical animal models. A novel series of 1,2,4-triazol-3-yl-thiopropyl-tetrahydrobenzazepines demonstrating a high level of D3 affinity and selectivity with an excellent pharmacokinetic profile is reported here. In particular, the pyrazolyl derivative 35 showed good oral bioavailability and brain penetration associated with high potency and selectivity in vitro. In vivo characterization of 35 confirmed that this compound blocks the expression of nicotine- and cocaine-conditioned place preference in the rat, prevents nicotine-triggered reinstatement of nicotine- seeking behavior in the rat, reduces oral operant alcohol self- administration in the mouse, increases extracellular levels of acetylcholine in the rat medial prefrontal cortex, and potentiates the amplitude of the relative cerebral blood volume response to d-amphetamine in a regionally specific manner in the rat brain.
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