1622-57-7Relevant articles and documents
2-aminobenzimidazoles for leishmaniasis: From initial hit discovery to in vivo profiling
Ferreira, Rafael Augusto Alves,Junior, Celso de Oliveira Rezende,Martinez, Pablo David Grigol,Koovits, Paul John,Soares, Bruna Miranda,Ferreira, Leonardo L. G.,Michelan-Duarte, Simone,Chelucci, Rafael Consolin,Andricopulo, Adriano D.,Galuppo, Mariana K.,Uliana, Silvia R. B.,Matheeussen, An,Caljon, Guy,Maes, Louis,Campbell, Simon,Kratz, Jadel M.,Mowbray, Charles E.,Dias, Luiz Carlos
, (2021/03/24)
Leishmaniasis is a major infectious disease with hundreds of thousands of new cases and over 20,000 deaths each year. The current drugs to treat this life-threatening infection have several drawbacks such as toxicity and long treatment regimens. A library of 1.8 million compounds, from which the hits reported here are publicly available, was screened against Leishmania infantum as part of an optimization program; a compound was found with a 2-aminobenzimidazole functionality presenting moderate potency, low metabolic stability and high lipophilicity. Several rounds of synthesis were performed to incorporate chemical groups capable of reducing lipophilicity and clearance, leading to the identification of compounds that are active against different parasite strains and have improved in vitro proper-ties. As a result of this optimization program, a group of compounds was further tested in anticipation of in vivo evaluation. In vivo tests were carried out with compounds 29 (L. infantum IC50: 4.1 μM) and 39 (L. infantum IC50: 0.5 μM) in an acute L. infantum VL mouse model, which showed problems of poor exposure and lack of efficacy, despite the good in vitro potency.
HMOX1 inducers
-
Page/Page column 21; 159, (2020/09/18)
The present invention is related to compounds of structure (I) as heme oxygenase 1 (HMOX 1) inducers. The present invention is also related a method of controlling the activity or the amount, or both the activity and the amount, of heme-oxygenase 1 in a mammalian subject. The definitions of the variables are provided herein.
Metal-free C(sp2)-H functionalization of azoles: K2CO3/I2-mediated oxidation, imination, and amination
Das, Ranajit,Banerjee, Mainak,Rai, Rakesh Kumar,Karri, Ramesh,Roy, Gouriprasanna
, p. 4243 - 4260 (2018/06/22)
The direct C2-H oxidation and imination of a wide variety of azoles was achieved by using a commercially available simple K2CO3/I2 reagent combination. The iodinated azole adduct, produced via the in situ generation of N-heterocyclic carbene, is the key intermediate for C2-H oxidation, imination, and amination of azoles. Significantly, these reactions proceed under mild conditions with high to excellent yields, are scalable to large quantity and exhibit a broad substrate scope. Interestingly, this direct C2-H imination method allowed us to access various pharmacologically active N6-alkyl or N6-aryl substituted benzimidazoquinazolinone scaffolds through intramolecular C-H imination in a sequential one-pot reaction.