Dicationic biphenyl benzimidazole derivatives as antiprotozoal agents
摘要:
A series of biphenyl benzimidazoles diamidines 6a-i were synthesized from their respective diamidoximes, through the bis-O-acetoxyamidoxime followed by hydrogenation in glacial acetic acid/ethanol in the presence of Pd-C. The target compounds contain hydroxy and/or methoxy substituted 1,3-phenyl groups as the central spacer between the two amidino bearing aryl groups. All of the diamidines showed strong DNA affinities as judged by high DeltaT(m) values with poly(dA(.)dT)(2), which varied with structure and is discussed. Seven of the nine new diamidines gave in vitro IC50 values of approximately 30nM or less versus Trypanosoma brucei rhodesiense (T.b.r.). Generally the diamidines were less active versus Plasmodium falciparum (P.f), however one compound exhibited excellent activity with an IC50 value of 2.1 nM. Five of the nine diamidines exhibited excellent in vivo activity in the trypanosomal STIB900 mouse model giving 3/4 or 4/4 cures at dosage of 20mg/kg ip and three showed similar efficacy at dosage of 10mg/kg or lower. (C) 2004 Elsevier Ltd. All rights reserved.
Dicationic biphenyl benzimidazole derivatives as antiprotozoal agents
摘要:
A series of biphenyl benzimidazoles diamidines 6a-i were synthesized from their respective diamidoximes, through the bis-O-acetoxyamidoxime followed by hydrogenation in glacial acetic acid/ethanol in the presence of Pd-C. The target compounds contain hydroxy and/or methoxy substituted 1,3-phenyl groups as the central spacer between the two amidino bearing aryl groups. All of the diamidines showed strong DNA affinities as judged by high DeltaT(m) values with poly(dA(.)dT)(2), which varied with structure and is discussed. Seven of the nine new diamidines gave in vitro IC50 values of approximately 30nM or less versus Trypanosoma brucei rhodesiense (T.b.r.). Generally the diamidines were less active versus Plasmodium falciparum (P.f), however one compound exhibited excellent activity with an IC50 value of 2.1 nM. Five of the nine diamidines exhibited excellent in vivo activity in the trypanosomal STIB900 mouse model giving 3/4 or 4/4 cures at dosage of 20mg/kg ip and three showed similar efficacy at dosage of 10mg/kg or lower. (C) 2004 Elsevier Ltd. All rights reserved.
[EN] HETEROCYCLIC COMPOUNDS, IN PARTICULAR 2-OXO-4,4,5,5,6,6,7,7-OCTAHYDROBENZOXAZOLE DERIVATIVES, AND THEIR USE AS ANTIBACTERIAL COMPOUNDS<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES, EN PARTICULIER DÉRIVÉS DE 2-OXO -4,4,5,5,6,6,7,7-OCTAHYDROBENZOXAZOLE, ET LEUR UTILISATION EN TANT QUE COMPOSÉS ANTIBACTÉRIENS
申请人:REDX PHARMA PLC
公开号:WO2017137744A1
公开(公告)日:2017-08-17
This invention relates to antibacterial drug compounds containing a bicyclic core, typically a bicycle in which one of the rings is an oxazolidinone. It also relates to pharmaceutical formulations of antibacterial drug compounds. It also relates to uses of the compounds in treating bacterial infections and in methods of treating bacterial infections.
[EN] DICATIONIC TRIARYL ANALOGS AS ANTI-PROTOZOAN AGENTS<br/>[FR] ANALOGUES TRIARYL DICATIONIQUES UTILISES EN TANT QU'AGENTS ANTIPROTOZOAIRES
申请人:UNIV NORTH CAROLINA
公开号:WO2005040132A1
公开(公告)日:2005-05-06
Novel dicationic, heterocyclic triaryl compounds are useful in the treatment of microbial infections, such as Trypanosoma brucei rhodesiense infection and Plasmodium falciparum infection. These compounds are accordingly useful in treating second-stage human African trypanosomiasis. Pharmaceutical formulations comprising these compounds can be used in methods of treating microbial infections.
Dicationic triaryl analogs as anti-protozoan agents
申请人:Boykin W. David
公开号:US20050148646A1
公开(公告)日:2005-07-07
Novel dicationic, heterocyclic triaryl compounds are useful in the treatment of microbial infections, such as
Trypanosoma brucei rhodesiense
infection and
Plasmodium falciparum
infection. These compounds are accordingly useful in treating second-stage human African trypanosomiasis. Pharmaceutical formulations comprising these compounds can be used in methods of treating microbial infections.
NITROGENATED HETEROCYCLIC AMIDE COMPOUND, AND USE THEREOF FOR MEDICAL PURPOSES
申请人:Japan Tobacco Inc.
公开号:EP3747888A1
公开(公告)日:2020-12-09
The present invention provides a compound having a PDHK inhibitory activity and useful for the treatment or prophylaxis of diabetes (type 1 diabetes, type 2 diabetes etc.), insulin resistance syndrome, metabolic syndrome, hyperglycemia, hyperlactacidemia, diabetic complications (diabetic neuropathy, diabetic retinopathy, diabetic nephropathy, cataract etc.), cardiac failure (acute cardiac failure, chronic cardiac failure), cardiomyopathy, myocardial ischemia, myocardial infarction, angina pectoris, dyslipidemia, atherosclerosis, peripheral arterial disease, intermittent claudication, chronic obstructive pulmonary disease, brain ischemia, cerebral apoplexy, mitochondrial disease, mitochondrial encephalomyopathy, cancer, pulmonary hypertension or Alzheimer disease. The present invention relates to a compound of the formula [I-a] or the formula [II], or a pharmaceutically acceptable salt thereof:
wherein each symbol means the same as that described in the specification.