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Synthesis and dopaminergic activity of pyridine analogs of 5-hydroxy-2-(di-n-propylamino)tetralin. 1995

S A Glase, and A E Corbin, and T A Pugsley, and T G Heffner, and L D Wise
Department of Chemistry, Parke-Davis Pharmaceutical Research, Division of Warner-Lambert Company, Ann Arbor, Michigan 48105, USA.

The pyridine analogs of 5-hydroxy-2-(di-n-propylamino)tetralin (5-OH-DPAT), 4-6, were synthesized, and their biological activity was compared to that of 5-OH-DPAT. Compounds 4 and 6 exhibited activity similar to 5-OH-DPAT in dopamine (DA) D2 and D3 receptor binding and in autoreceptor activation as measured by their ability to reverse the gamma-butyrolactone-induced increase in rat DA synthesis. Behaviorally, 4 and 6 decreased locomotor activity (LMA) in rats (sc) at low doses but did not increase LMA to the same extent as 5-OH-DPAT at higher doses, indicating that 4 and 6 may be more selective for the DA autoreceptor. While 4 was less active orally in rats, 6 appeared to retain most of its behavioral potency. Analog 5 showed little activity in vivo or in vitro.

UI MeSH Term Description Entries
D008297 Male Males
D009043 Motor Activity Body movements of a human or an animal as a behavioral phenomenon. Activities, Motor,Activity, Motor,Motor Activities
D011485 Protein Binding The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Plasma Protein Binding Capacity,Binding, Protein
D011725 Pyridines Compounds with a six membered aromatic ring containing NITROGEN. The saturated version is PIPERIDINES.
D011954 Receptors, Dopamine Cell-surface proteins that bind dopamine with high affinity and trigger intracellular changes influencing the behavior of cells. Dopamine Receptors,Dopamine Receptor,Receptor, Dopamine
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
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
D015259 Dopamine Agents Any drugs that are used for their effects on dopamine receptors, on the life cycle of dopamine, or on the survival of dopaminergic neurons. Dopamine Drugs,Dopamine Effect,Dopamine Effects,Dopaminergic Agents,Dopaminergic Drugs,Dopaminergic Effect,Dopaminergic Effects,Agents, Dopamine,Agents, Dopaminergic,Drugs, Dopamine,Drugs, Dopaminergic,Effect, Dopamine,Effect, Dopaminergic,Effects, Dopamine,Effects, Dopaminergic
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

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