NOVEL 4-AMINO-QUINOLINE DERIVATIVES USEFUL AS ANTI-MALARIA DRUGS
申请人:Campiani Giuseppe
公开号:US20100093726A1
公开(公告)日:2010-04-15
The present invention relates to clotrimazole/quinoline hybrids useful as active ingredients of anti-malaria drugs. The compounds show a remarkable in vitro biological activity especially against the chloroquine-resistant
Plasmodium falciparum
strains and in vivo activity against
P. berghei.
We report herein the generation and validation of a 3D-QSAR model based on a set of antimalarials previously described by us and characterized by a clotrimazole-based pharmacophore. A novel series of derivatives was synthesized and showed activity against Plasmodium falciparum chloroquine-sensitive (CQ-S) and chloroquine-resistant (CQ-R) strains. Gratifyingly, compounds 35a-c showed interesting activity against P. falciparum CQ-R strains with improved predicted physico-chemical properties. (C) 2015 Elsevier Ltd. All rights reserved.
Synthesis and biological evaluation of benzhydryl-based antiplasmodial agents possessing Plasmodium falciparum chloroquine resistance transporter (PfCRT) inhibitory activity
作者:Nicola Relitti、Stefano Federico、Luca Pozzetti、Stefania Butini、Stefania Lamponi、Donatella Taramelli、Sarah D’Alessandro、Rowena E. Martin、Sarah H. Shafik、Robert L. Summers、Simone K. Babij、Annette Habluetzel、Sofia Tapanelli、Reto Caldelari、Sandra Gemma、Giuseppe Campiani
DOI:10.1016/j.ejmech.2021.113227
日期:2021.4
Clotrimazole Scaffold as an Innovative Pharmacophore Towards Potent Antimalarial Agents: Design, Synthesis, and Biological and Structure–Activity Relationship Studies
We describe herein the design, synthesis, biological evaluation, and structure-activity relationship (SAR) studies of an innovative class of antimalarial agents based on a polyaromatic pharmacophore structurally related to clotrimazole and easy to synthesize by low-cost synthetic procedures. SAR studies delineated a number of structural features able to modulate the in vitro and in vivo antimalarial activity. A selected set of antimalarials was further biologically investigated and displayed low in vitro toxicity on a panel of human and murine cell lines. In vitro, the novel compounds proved to be selective for free heme, as demonstrated in the beta-hematin inhibitory activity assay, and did not show inhibitory activity against 14-alpha-lanosterol demethylase (a fungal P450 cytochrome). Compounds 2, 4e, and 4n exhibited in vivo activity against P. chabaudi after oral administration and thus represent promising antimalarial agents for further preclinical development.
[EN] NOVEL 4-AMINO-QUINOLINE DERIVATIVES USEFUL AS ANTI-MALARIA DRUGS<br/>[FR] NOUVEAUX DÉRIVÉS DE 4-AMINO-QUINOLINE À UTILISER EN TANT QU'ANTIPALUDÉENS
申请人:CAMPIANI GIUSEPPE
公开号:WO2008101891A1
公开(公告)日:2008-08-28
[EN] The present invention relates to clotrimazole/quinoline hybrids useful as active ingredients of anti-malaria drugs. The compounds show a remarkable in vitro biological activity especially against the chloroquine-resistant Plasmodium falciparum strains and in vivoactivity against P.berghei. [FR] La présente invention concerne des hybrides clotrimazole/quinoline utiles en tant que principes actifs d'antipaludéens. Ces composés présentent une activité biologique in vitro remarquable en particulier contre les souches de Plasmodium falciparum résistant à la chloroquine ainsi qu'une activité in vivo contre l'espèce P.berghei.