Clotrimazole Scaffold as an Innovative Pharmacophore Towards Potent Antimalarial Agents: Design, Synthesis, and Biological and Structure–Activity Relationship Studies
摘要:
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.
Clotrimazole Scaffold as an Innovative Pharmacophore Towards Potent Antimalarial Agents: Design, Synthesis, and Biological and Structure–Activity Relationship Studies
摘要:
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.
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.
[EN] ANTIMALARIAL AGENTS HAVING POLYAROMATIC STRUCTURE<br/>[FR] AGENTS ANTIMALARIAUX DE STRUCTURE POLYAROMATIQUE
申请人:SIGMA TAU IND FARMACEUTI
公开号:WO2007104696A1
公开(公告)日:2007-09-20
[EN] Antimalarial agents having a novel pharmacophore of formula (I) are herein described. These polycyclic compounds are able to inhibit chloroquine-sensitive and chloroquine-resistant strains ofPlasmodium falciparum (Pf). Furthermore, the synthesis of these compounds involves few steps from commercial products with low cost of production. [FR] La présente invention concerne des agents antimalariaux comportant un nouveau pharmacophore de formule (I). Ces composés polycycliques sont susceptibles d'inhiber les souches sensibles à la chloroquine et résistantes à la chloroquine de Plasmodium falciparum (Pf). En outre, la synthèse de ces composés est peu onéreuse et implique peu d'étapes à partir des produits commerciaux.
[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.
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.