A series of nicotinic ligands, carrying a quinoline nucleus, and characterized by a pharmacophoric distance between the quinoline nitrogen (H-bond acceptor) and the cationic nitrogen atoms higher than that proposed in the classical pharmacophoric models, have been synthesized and tested for their affinity for the central nicotinic receptor. The enantiomers of the nicotine analogue 1-methyl-2-pyrrolidinyl-6-quinoline and of its methiodide display enantioselectivity in binding studies, but not when tested in vivo; on α7* nicotinic receptor enantioselectivity is inverted with respect to the α4β2* subtype. N,N,N-Trimethyl-4-(quinolin-6- yl)but-3- yn-1-ammonium iodide (3c) and trans-N,N,N-trimethyl-4-(quinolin-6-yl)but-3-en-1- ammonium iodide (4c), showing pharmacophoric distances in the range 8.5-10.4 Å, interact with the α4β2* nicotinic receptor with Ki in the μM range; compound 3c shows preference for the α7* subtype.
Design, Synthesis, and Preliminary Pharmacological Evaluation of New Quinoline Derivatives as Nicotinic Ligands / L. GUANDALINI; M. NORCINI; K. VARANI; M. PISTOLOZZI; C. GOTTI; C. BAZZICALUPI; E. MARTINI; S. DEI; D. MANETTI; S. SCAPECCHI; E. TEODORI; C. BERTUCCI; C. GHELARDINI; M. N. ROMANELLI. - In: JOURNAL OF MEDICINAL CHEMISTRY. - ISSN 0022-2623. - STAMPA. - 50:(2007), pp. 4993-5002. [10.1021/jm070325r]
Design, Synthesis, and Preliminary Pharmacological Evaluation of New Quinoline Derivatives as Nicotinic Ligands
GUANDALINI, LUCA;NORCINI, MONICA;BAZZICALUPI, CARLA;MARTINI, ELISABETTA;DEI, SILVIA;MANETTI, DINA;SCAPECCHI, SERENA;TEODORI, ELISABETTA;GHELARDINI, CARLA;ROMANELLI, MARIA NOVELLA
2007
Abstract
A series of nicotinic ligands, carrying a quinoline nucleus, and characterized by a pharmacophoric distance between the quinoline nitrogen (H-bond acceptor) and the cationic nitrogen atoms higher than that proposed in the classical pharmacophoric models, have been synthesized and tested for their affinity for the central nicotinic receptor. The enantiomers of the nicotine analogue 1-methyl-2-pyrrolidinyl-6-quinoline and of its methiodide display enantioselectivity in binding studies, but not when tested in vivo; on α7* nicotinic receptor enantioselectivity is inverted with respect to the α4β2* subtype. N,N,N-Trimethyl-4-(quinolin-6- yl)but-3- yn-1-ammonium iodide (3c) and trans-N,N,N-trimethyl-4-(quinolin-6-yl)but-3-en-1- ammonium iodide (4c), showing pharmacophoric distances in the range 8.5-10.4 Å, interact with the α4β2* nicotinic receptor with Ki in the μM range; compound 3c shows preference for the α7* subtype.File | Dimensione | Formato | |
---|---|---|---|
NICOTINIC JMC 2007pdf.pdf
Accesso chiuso
Tipologia:
Altro
Licenza:
Tutti i diritti riservati
Dimensione
261.92 kB
Formato
Adobe PDF
|
261.92 kB | Adobe PDF | Richiedi una copia |
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.