Synthesis and Antiviral Activity of 7-Benzyl-4-hydroxy-1,5-naphthyridin-2(1H)-one HIV Integrase Inhibitors
摘要:
The medicinal chemistry and structure-activity relationships for a novel series of 7-benzyl-4-hydroxy-1,5-naphthyridin-2(1H)-one HIV-integrase inhibitors are disclosed. Substituent effects were evaluated at the N-1, C-3, and 7-benzyl positions of the naphthyridinone ring system. Low nanomolar IC50 values were achieved in an HIV-integrase strand transfer assay with both carboxylic ester and carboxamide groups at C-3. More importantly, several carboxamide congeners showed potent antiviral activity in cellular assays. A 7-benzyl substituent was found to be critical for potent enzyme inhibition, and an N-(2-methoxyethyl)-carboxamide moiety at C-3 significantly reduced plasma protein binding effects in vitro. Pharmacokinetic data in rats for one carboxamide analogue demonstrated oral bioavailability and reasonable in vivo clearance.
Synthesis and Antiviral Activity of 7-Benzyl-4-hydroxy-1,5-naphthyridin-2(1H)-one HIV Integrase Inhibitors
摘要:
The medicinal chemistry and structure-activity relationships for a novel series of 7-benzyl-4-hydroxy-1,5-naphthyridin-2(1H)-one HIV-integrase inhibitors are disclosed. Substituent effects were evaluated at the N-1, C-3, and 7-benzyl positions of the naphthyridinone ring system. Low nanomolar IC50 values were achieved in an HIV-integrase strand transfer assay with both carboxylic ester and carboxamide groups at C-3. More importantly, several carboxamide congeners showed potent antiviral activity in cellular assays. A 7-benzyl substituent was found to be critical for potent enzyme inhibition, and an N-(2-methoxyethyl)-carboxamide moiety at C-3 significantly reduced plasma protein binding effects in vitro. Pharmacokinetic data in rats for one carboxamide analogue demonstrated oral bioavailability and reasonable in vivo clearance.
Tricyclic HIV integrase inhibitors: VI. SAR studies of ‘benzyl flipped’ C3-substituted pyrroloquinolines
作者:Sammy Metobo、Michael Mish、Haolun Jin、Salman Jabri、Rachael Lansdown、Xiaowu Chen、Manuel Tsiang、Matthew Wright、Choung U. Kim
DOI:10.1016/j.bmcl.2008.12.079
日期:2009.2
A series of C3 halobenzyl-substituted tricyclic HIV integrase inhibitors was prepared. Improvement in cell-based inhibitor potency was observed in comparison to previously disclosed tricyclic pyrroloquinolines carrying the 'halobenzyl tail' at the lactam nitrogen. Animal PK for several of the C3-substituted inhibitors was examined, with a dihaloaryl analog achieving good balance in protein-shifted EC50 and t(1/2) in animal PK studies. (C) 2008 Elsevier Ltd. All rights reserved.
INTEGRASE INHIBITORS
申请人:Cai Zhenhong R.
公开号:US20090306054A1
公开(公告)日:2009-12-10
Tricyclic compounds of formulae I-III, protected intermediates thereof, and methods for inhibition of HIV-integrase are disclosed.
[EN] Tricyclic compounds, protected intermediates thereof, and methods for inhibition of HIV-integrase are disclosed. [FR] L'invention concerne des composés tricycliques, des intermédiaires protégés de ceux-ci, ainsi que des méthodes d'inhibition de l'intégrase du VIH.