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(Aryloxy)alkylamines as selective human dopamine D4 receptor antagonists: potential antipsychotic agents. 1997

P C Unangst, and T Capiris, and D T Connor, and R Doubleday, and T G Heffner, and R G MacKenzie, and S R Miller, and T A Pugsley, and L D Wise
Department of Chemistry, Parke-Davis Pharmaceutical Research, Division of Warner-Lambert Company, Ann Arbor, Michigan 48105, USA.

The discovery of a series of novel (aryloxy)alkylamines with selective affinity for the dopamine D4 receptor is described. Target compounds were tested for binding to cloned human dopamine D2, D3, and D4 receptor subtypes expressed in Chinese hamster ovary (CHO) K-1 cells. A number of compounds demonstrated subnanomolar Ki values for binding to the D4 receptor, with several 100-fold selectivities toward the D2 and D3 receptors. Several compounds with combined D3/D4 receptor binding selectivity were also identified. A limited structure-activity relationship study of this chemical series is discussed. In a mitogenesis functional assay, the effect of the test compounds on cellular uptake of [3H]thymidine in D4-transfected CHO 10,001 cells was measured and compared to the response of the full dopamine agonist quinpirole. The activity of the compounds varied from full antagonist to weak partial agonist activity (intrinsic activity of 0-19% in comparison to quinpirole).

UI MeSH Term Description Entries
D006224 Cricetinae A subfamily in the family MURIDAE, comprising the hamsters. Four of the more common genera are Cricetus, CRICETULUS; MESOCRICETUS; and PHODOPUS. Cricetus,Hamsters,Hamster
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013329 Structure-Activity Relationship The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups. Relationship, Structure-Activity,Relationships, Structure-Activity,Structure Activity Relationship,Structure-Activity Relationships
D014150 Antipsychotic Agents Agents that control agitated psychotic behavior, alleviate acute psychotic states, reduce psychotic symptoms, and exert a quieting effect. They are used in SCHIZOPHRENIA; senile dementia; transient psychosis following surgery; or MYOCARDIAL INFARCTION; etc. These drugs are often referred to as neuroleptics alluding to the tendency to produce neurological side effects, but not all antipsychotics are likely to produce such effects. Many of these drugs may also be effective against nausea, emesis, and pruritus. Antipsychotic,Antipsychotic Agent,Antipsychotic Drug,Antipsychotic Medication,Major Tranquilizer,Neuroleptic,Neuroleptic Agent,Neuroleptic Drug,Neuroleptics,Tranquilizing Agents, Major,Antipsychotic Drugs,Antipsychotic Effect,Antipsychotic Effects,Antipsychotics,Major Tranquilizers,Neuroleptic Agents,Neuroleptic Drugs,Tranquillizing Agents, Major,Agent, Antipsychotic,Agent, Neuroleptic,Drug, Antipsychotic,Drug, Neuroleptic,Effect, Antipsychotic,Major Tranquilizing Agents,Major Tranquillizing Agents,Medication, Antipsychotic,Tranquilizer, Major
D016466 CHO Cells CELL LINE derived from the ovary of the Chinese hamster, Cricetulus griseus (CRICETULUS). The species is a favorite for cytogenetic studies because of its small chromosome number. The cell line has provided model systems for the study of genetic alterations in cultured mammalian cells. CHO Cell,Cell, CHO,Cells, CHO
D050638 Receptors, Dopamine D4 A subtype of dopamine D2 receptors that has high affinity for the antipsychotic CLOZAPINE. Dopamine D4 Receptors,Dopamine D4 Receptor,Receptor, Dopamine D4,D4 Receptor, Dopamine,D4 Receptors, Dopamine
D018492 Dopamine Antagonists Drugs that bind to but do not activate DOPAMINE RECEPTORS, thereby blocking the actions of dopamine or exogenous agonists. Many drugs used in the treatment of psychotic disorders (ANTIPSYCHOTIC AGENTS) are dopamine antagonists, although their therapeutic effects may be due to long-term adjustments of the brain rather than to the acute effects of blocking dopamine receptors. Dopamine antagonists have been used for several other clinical purposes including as ANTIEMETICS, in the treatment of Tourette syndrome, and for hiccup. Dopamine receptor blockade is associated with NEUROLEPTIC MALIGNANT SYNDROME. Dopamine Antagonist,Dopamine Blocker,Dopamine Receptor Antagonist,Dopamine Receptor Antagonists,Dopaminergic Antagonist,Dopaminergic Antagonists,Antagonists, Dopamine,Antagonists, Dopamine Receptor,Antagonists, Dopaminergic,Dopamine Blockers,Antagonist, Dopamine,Antagonist, Dopamine Receptor,Antagonist, Dopaminergic,Blocker, Dopamine,Blockers, Dopamine,Receptor Antagonist, Dopamine,Receptor Antagonists, Dopamine
D065127 Dopamine D2 Receptor Antagonists Compounds and drugs that bind to and inhibit or block the activation of DOPAMINE D2 RECEPTORS. Dopamine D2 Antagonist,Dopamine D2 Receptor Antagonist,Dopamine D2 Antagonists,Receptor Antagonists, Dopamine D2,Antagonist, Dopamine D2,Antagonists, Dopamine D2,D2 Antagonist, Dopamine,D2 Antagonists, Dopamine

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