A Series of N4-Imidoethyl Derivatives of 1-(2,3-Dihydro-1,4-benzodioxin-5-yl)piperazine as 5-HT1A Receptor Ligands: Synthesis and Structure-Affinity Relationships
A series of unsubstituted and substituted succinimido, maleimido, and glutarimidoethyl derivatives of eltoprazine (3) was synthesized and tested for affinity for the 5-HT1A receptor in rat brain homogenates. The unsubstituted compounds have a moderate affinity for the receptor, while the affinity co...
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Veröffentlicht in: | Journal of medicinal chemistry 1995-10, Vol.38 (21), p.4303-4308 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A series of unsubstituted and substituted succinimido, maleimido, and glutarimidoethyl derivatives of eltoprazine (3) was synthesized and tested for affinity for the 5-HT1A receptor in rat brain homogenates. The unsubstituted compounds have a moderate affinity for the receptor, while the affinity considerably increases by substitution at or enlargement of these cyclic ring systems. A good correlation was found between the inhibition constant Ki (expressed as pKi) and the lipophilicity (clogP). No correlation was observed between the pKi or pKi+ (local inhibition constant) and the basicity of the N4-nitrogen atom. |
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ISSN: | 0022-2623 1520-4804 |
DOI: | 10.1021/jm00021a020 |