Synthesis of New 4-Aminoquinolines and Evaluation of Their In Vitro Activity against Chloroquine-Sensitive and Chloroquine-Resistant Plasmodium falciparum
[EN] DIARYLAMINE-SUBSTITUTED QUINOLONES USEFUL AS INDUCIBLE NITRIC OXIDE SYNTHASE INHIBITORS<br/>[FR] QUINOLONES SUBSTITUÉES PAR DIARYLAMINE UTILES COMME INHIBITEURS DE L'OXYDE NITRIQUE SYNTHASE INDUCTIBLE.
申请人:KALYPSYS INC
公开号:WO2009029617A1
公开(公告)日:2009-03-05
Novel diarylamine-substituted quinolone compounds and pharmaceutical compositions, certain of which have been found to inhibit inducible NOS synthase have been discovered, together with methods of synthesizing and using the compounds including methods for the treatment of iNOS-mediated diseases in a patient by administering the compounds.
Synthesis of New 4-Aminoquinolines and Evaluation of Their In Vitro Activity against Chloroquine-Sensitive and Chloroquine-Resistant Plasmodium falciparum
作者:Chandima S. K. Rajapakse、Maryna Lisai、Christiane Deregnaucourt、Véronique Sinou、Christine Latour、Dipankar Roy、Joseph Schrével、Roberto A. Sánchez-Delgado
DOI:10.1371/journal.pone.0140878
日期:——
The efficacy of chloroquine, once the drug of choice in the fight against Plasmodium falciparum, is now severely limited due to widespread resistance. Amodiaquine is one of the most potent antimalarial 4-aminoquinolines known and remains effective against chloroquine-resistant parasites, but toxicity issues linked to a quinone-imine metabolite limit its clinical use. In search of new compounds able to retain the antimalarial activity of amodiaquine while circumventing quinone-imine metabolite toxicity, we have synthesized five 4-aminoquinolines that feature rings lacking hydroxyl groups in the side chain of the molecules and are thus incapable of generating toxic quinone-imines. The new compounds displayed high in vitro potency (low nanomolar IC50), markedly superior to chloroquine and comparable to amodiaquine, against chloroquine-sensitive and chloroquine-resistant strains of P. falciparum, accompanied by low toxicity to L6 rat fibroblasts and MRC5 human lung cells, and metabolic stability comparable or higher than that of amodiaquine. Computational studies indicate a unique mode of binding of compound 4 to heme through the HOMO located on a biphenyl moeity, which may partly explain the high antiplasmodial activity observed for this compound.
作者:Piero Valenti、Maurizia Mazzotti、Angela Rampa、Maria J. Magistretti
DOI:10.1002/ardp.19823151205
日期:——
Three isomeric cyclovinylogues of procainamide, in which a benzene ring is interposed between the methylene groups of the basic chain, are described. Appreciable dissociation has been achieved between local anesthetic and antiarrhythmic activities.
<i>N</i>-Benzyl Benzamide Derivatives as Selective Sub-Nanomolar Butyrylcholinesterase Inhibitors for Possible Treatment in Advanced Alzheimer’s Disease
almost equal to the treatment with 1 mg/kg rivastigmine, against the cognitive impairment induced by Aβ1–42. The pharmacokinetics studies characterized the metabolic stability of S11-1014. Thus, N-benzyl benzamide inhibitors are promising compounds with drug-like properties for improving cognitive dysfunction, providing a potential strategy for the treatment of Alzheimer’sdisease.