نتایج جستجو برای: quinoxaline derivatives

تعداد نتایج: 105987  

Journal: :The international tinnitus journal 2005
Klaus Ehrenberger

This prospective study, which conformed with good clinical practice (GCP-conform), tested the concept that the topical transtympanic administration of the quinoxaline derivative Caroverine promises a new approach to the treatment of tinnitus. The rationale for the study is the hypothesis that tinnitus reflects sequelae of auditory neurotoxicity that can prevented and repaired by the neuroprotec...

2010
Olayinka O. Ajani Craig A. Obafemi Chinwe O. Ikpo Kehinde O. Ogunniran Obinna C. Nwinyi

3-Hydrazinoquinoxalin-2(1H)-one was prepared from quinoxaline-2,3-dione and subsequently used for the synthesis of some potentially biologically active 3-(pyrazol-1-yl)quinoxalin-2(1H)-one derivatives. While 3-(3,5-dimethylpyrazol-1-yl)quinoxalin-2(1H)-one showed a comparative effect with streptomycin, 3-(5-oxo-3-phenyl-4,5-dihydropyrazol-1-yl)quinoxalin-2(1H)-one was found to be the most activ...

Journal: :Molecules 2008
Esther Vicente Sarah Charnaud Emily Bongard Raquel Villar Asunción Burguete Beatriz Solano Saioa Ancizu Silvia Pérez-Silanes Ignacio Aldana Livia Vivas Antonio Monge

The aim of this study was to identify new compounds active against Plasmodium falciparum based on our previous research carried out on 3-phenyl-quinoxaline-2-carbonitrile 1,4-di-N-oxide derivatives. Twelve compounds were synthesized and evaluated for antimalarial activity. Eight of them showed an IC(50) less than 1 microM against the 3D7 strain. Derivative 1 demonstrated high potency (IC(50)= 0...

Journal: :European journal of medicinal chemistry 2021

The malignant transformation of melanocytes causes several thousand deaths each year, making melanoma an important public health concern. Melanoma is the most aggressive skin cancer, which incidence has regularly increased over past decades. We described here preparation new compounds based on 1-(3,4-dihydroxyphenyl)imidazo[1,2-a]quinoxaline structure. Different positions quinoxaline moiety wer...

Journal: :Bioorganic & medicinal chemistry 2010
Saioa Ancizu Elsa Moreno Beatriz Solano Raquel Villar Asunción Burguete Enrique Torres Silvia Pérez-Silanes Ignacio Aldana Antonio Monge

Mycobacterium tuberculosis (M.Tb) is a bacillus capable of causing a chronic and fatal condition in humans known as tuberculosis (TB). It is estimated that there are 8 million new cases of TB per year and 3.1 million infected people die annually. Thirty-six new amide quinoxaline 1,4-di-N-oxide derivatives have been synthesized and evaluated as potential anti-tubercular agents, obtaining biologi...

Journal: :Bioorganic & medicinal chemistry letters 2005
Zsolt Székelyhidi János Pató Frigyes Wáczek Péter Bánhegyi Bálint Hegymegi-Barakonyi Dániel Erös György Mészáros Ferenc Hollósy Doris Hafenbradl Sabine Obert Bert Klebl György Kéri László Orfi

SR protein-specific kinase-1 (SRPK-1) has been identified as a validated target for hepatitis B virus (HBV). A series of novel tricyclic quinoxaline derivatives was designed and synthesised as potential kinase inhibitory antiviral agents and was found to be active and selective for SRPK-1 kinase. Most of these novel compounds have drug-like properties according to experimentally determined LogP...

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