N-[ω-[4-(2-Methoxyphenyl)-1-piperazinyl]alkyl]-2-quinolinamines as High-Affinity Fluorescent 5-HT1A Receptor Ligands
摘要:
We here report on the design, synthesis; binding affinities, and fluorescent properties of a series of serotonin 5-HT1A receptor ligands, with N-[omega-[4-(2-methoxyphenyl)-1-piperazinyl]alkyl]-2-quinolinamine structure. Several of the new ligands displayed nanomolar affinity at 5-HT1A receptor and good fluorescent properties. In particular, derivative 24 showed a favorable combination of 5-HT1A receptor affinity (K-i = 0.4 nM), Stokes shift (excitation wavelength = 381 nm, emission wavelength = 455 nm), and quantum yield in ethanol (Phi = 0.45).
Isosteric replacement of the amide function and modulation of the arylpiperazine moiety of known dopamine D3 receptor ligands led to potent and selective compounds. Enhanced bioavailability and preferential brain distribution make compound 6c a good candidate for pharmacological and clinical evaluation. (c) 2010 Elsevier Ltd. All rights reserved.
N-[ω-[4-(2-Methoxyphenyl)-1-piperazinyl]alkyl]-2-quinolinamines as High-Affinity Fluorescent 5-HT1A Receptor Ligands
作者:Enza Lacivita、Marcello Leopoldo
DOI:10.1021/jm7013919
日期:2008.3.13
We here report on the design, synthesis; binding affinities, and fluorescent properties of a series of serotonin 5-HT1A receptor ligands, with N-[omega-[4-(2-methoxyphenyl)-1-piperazinyl]alkyl]-2-quinolinamine structure. Several of the new ligands displayed nanomolar affinity at 5-HT1A receptor and good fluorescent properties. In particular, derivative 24 showed a favorable combination of 5-HT1A receptor affinity (K-i = 0.4 nM), Stokes shift (excitation wavelength = 381 nm, emission wavelength = 455 nm), and quantum yield in ethanol (Phi = 0.45).