A new synthetic approach of N-(4-amino-2-methylquinolin-6-yl)-2-(4-ethylphenoxymethyl)benzamide (JTC-801) and its analogues and their pharmacological evaluation as nociceptin receptor (NOP) antagonists
作者:Isabella Sestili、Anna Borioni、Carlo Mustazza、Andrea Rodomonte、Luciana Turchetto、Maria Sbraccia、Daniela Riitano、Maria Rosaria Del Giudice
DOI:10.1016/j.ejmech.2004.09.009
日期:2004.12
A series of 4-amino-2-methylquinoline and 4-aminoquinazoline derivatives, including the reference NOP antagonist JTC-801, were synthesized by an alternative pathway and their in vitro pharmacological properties were investigated. 3-Substitution of the quinoline ring resulted very critical for affinity. So 3-methyl derivative 4j showed a similar potency compared with the reference 4h while bulky lipophilic or electron withdrawing groups in the same position strongly decreased affinity. Structural and conformational requirements for affinity were outlined by NOE NMR and computational methods and suggestions for a pharmacophore model design were provided. (C) 2004 Elsevier SAS. All rights reserved.