19622-55-0Relevant articles and documents
Trypanosoma cruzi: Effect and mode of action of nitroimidazole and nitrofuran derivatives
Maya, Juan Diego,Bollo, Soledad,Nunez-Vergara, Luis J.,Squella, Juan A.,Repetto, Yolanda,Morello, Antonio,Perie, Jacques,Chauviere, Gerard
, p. 999 - 1006 (2003)
With the aim of determining the actual target(s) of nitro-group bearing compounds considered as possible leads for the development of drugs against Chagas' disease, we studied in parallel nitrofurans and nitroimidazoles. We investigated nine representative compounds for the following properties: efficacy on different Trypanosoma cruzi strains, redox cyclers, inhibition of respiration, production of corresponding nitroso derivatives and intracellular thiol scavengers. Our results indicate that nifurtimox and related compounds act as redox cyclers, whereas the most active in the series, the 5-nitroimidazole megazol essentially acts as thiol scavenger particularly for trypanothione, the cofactor for trypanothione reductase, an essential enzyme in the detoxification process.
5-Nitroimidazole-based 1,3,4-Thiadiazoles: Heterocyclic analogs of metronidazole as anti-helicobacter pylori agents
Moshafi, Mohammad Hassan,Sorkhi, Maedeh,Emami, Saeed,Nakhjiri, Maryam,Yahya-Meymandi, Azadeh,Negahbani, Amir Soheil,Siavoshi, Farideh,Omrani, Maryam,Alipour, Eskandar,Vosooghi, Mohsen,Shafiee, Abbas,Foroumadi, Alireza
, p. 178 - 183 (2011/10/08)
A series of 5-nitroimidazole-based 1,3,4-thiadiazoles were prepared and tested for antibacterial activity against Helicobacter pylori. The anti-H. pylori activity of target compounds along with the commercially available antimicrobial metronidazole was evaluated by comparing the inhibition-zone diameters determined by the paper disc diffusion bioassay. From our bioassay results against 20 clinical isolates it is evident that piperazinyl, 4-methylpiperazinyl, 3-methylpiperazinyl, and 3,5-dimethylpiperazinyl analogs (6a, 6b, 6e, and 6f, respectively) and pyrrolidine derivative 7 had strong activity at 0.5 μg/disc (average of inhibition zone >20 mm) while metronidazole had no activity at this dose. Compound 6f containing the 3,5-dimethylpiperazinyl moiety at the 2-position of the 5-(1-methyl-5-nitro-1H- imidazol-2-yl)-1,3,4-thiadiazole skeleton was the most potent compound tested at low concentrations.
Nitroimidazolyl-1,3,4-thiadiazole-based anti-leishmanial agents: Synthesis and in vitro biological evaluation
Poorrajab, Fatemeh,Ardestani, Sussan Kabudanian,Emami, Saeed,Behrouzi-Fardmoghadam, Mina,Shafiee, Abbas,Foroumadi, Alireza
body text, p. 1758 - 1762 (2009/05/27)
A series of 1-[5-(1-methyl-5-nitro-1H-imidazol-2-yl)-1,3,4-thiadiazol-2-yl]-4-aroylpiperazines were synthesized and evaluated in vitro against Leishmania major. Most of the target compounds exhibited good anti-leishmanial activity against the promastigote form of L. major at non-cytotoxic concentrations. The most active compound was 1-[(5-chloro-2-thienyl)carbonyl]-4-[5-(1-methyl-5-nitro-1H-imidazol-2-yl)-1,3,4-thiadiazol-2-yl]piperazine (5f) with an IC50 value of 9.35 ± 0.67 μM against L. major promastigotes. In addition, this compound was effective against intracellular L. major and significantly decreased the infectivity index.
Synthesis and antimycobacterial activity of some alkyl [5-(nitroaryl)-1,3, 4-thiadiazol-2-ylthio]propionates
Foroumadi, Alireza,Kargar, Zahra,Sakhteman, Amirhossein,Sharifzadeh, Zahra,Feyzmohammadi, Robabeh,Kazemi, Mahnoush,Shafiee, Abbas
, p. 1164 - 1167 (2007/10/03)
Two series of 2- and 3-[5-(nitroaryl)-1,3,4-thiadiazol-2-ylthio, sulfinyl and sulfonyl] propionic acid alkyl esters were synthesized and screened for antituberculosis activity against Mycobacterium tuberculosis H37Rv using the BACTEC 460 radiometric system. The MIC values for the compounds showing more than 90% inhibition were determined. The result of comparison between two groups of data exhibited that among the synthesized derivatives, the compound propyl 3-[5-(5-nitrothiophen-2-yl)-1,3,4-thiadiazol-2-ylthio]propionate was the most active one (MIC = 1.56 μg ml-1).