Category: imidazoles-derivatives

Ladduwahetty, Tammy; Lee, Matthew R.; Maillard, Michel C.; Cachope, Roger; Todd, Daniel; Barnes, Michael; Beaumont, Vahri; Chauhan, Alka; Gallati, Caroline; Haughan, Alan F.; Kempf, Georg; Luckhurst, Christopher A.; Matthews, Kim; McAllister, George; Mitchell, Philip; Patel, Hiral; Rose, Mark; Saville-Stones, Elizabeth; Steinbacher, Stefan; Stott, Andrew J.; Thatcher, Emma; Tierney, Jason; Urbonas, Liudvikas; Munoz-Sanjuan, Ignacio; Dominguez, Celia published an article in Journal of Medicinal Chemistry. The title of the article was 《Identification of a Potent, Selective, and Brain-Penetrant Rho Kinase Inhibitor and its Activity in a Mouse Model of Huntington’s Disease》.Electric Literature of C8H6N2O The author mentioned the following in the article:

The Rho kinase (ROCK) pathway is implicated in the pathogenesis of several conditions, including neurol. diseases. In Huntington’s disease (HD), ROCK is implicated in mutant huntingtin (HTT) aggregation and neurotoxicity, and members of the ROCK pathway are increased in HD mouse models and patients. To validate this mode of action as a potential treatment for HD, a potent, selective, central nervous system (CNS)-penetrant ROCK inhibitor was sought. Identifying a compound that could be dosed orally in mice with selectivity against other AGC kinases, including protein kinase G (PKG), whose inhibition could potentially activate the ROCK pathway, was paramount for the program. The optimization of published ligands to identify a novel series of ROCK inhibitors based on a piperazine core was demonstrated. Morphing of the early series developed inhouse by scaffold hopping enabled the identification of a compound exhibiting high potency and desired selectivity and demonstrating a robust pharmacodynamic (PD) effect by the inhibition of ROCK-mediated substrate (MYPT1) phosphorylation after oral dosing. The results came from multiple reactions, including the reaction of Imidazo[1,2-a]pyridine-5-carbaldehyde(cas: 372147-50-7Electric Literature of C8H6N2O)

Imidazo[1,2-a]pyridine-5-carbaldehyde(cas: 372147-50-7) belongs to imidazoles.Imidazole rings are part of unnatural cyclic peptides and are used as ester isosteres in peptidomimetic studies.
Electric Literature of C8H6N2O However, the application of imidazoles is not limited to the field of peptides and peptidomimetics.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Recommanded Product: 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborateIn 2021 ,《Interplay of Structure and Dynamics in Lithium/Ionic Liquid Electrolytes: Experiment and Molecular Simulation》 was published in Journal of Physical Chemistry B. The article was written by Judeinstein, Patrick; Zeghal, Mehdi; Constantin, Doru; Iojoiu, Cristina; Coasne, Benoit. The article contains the following contents:

Despite their promising use in electrochem. and electrokinetic devices, ionic-liquid-based electrolytes often exhibit complex behavior arising from a subtle interplay of their structure and dynamics. Here, the authors report a joint exptl. and mol. simulation study of such electrolytes obtained by mixing 1-Bu 3-methylimidazolium tetrafluoroborate with Li tetrafluoroborate. More in detail, experiments consisting of x-ray scattering, pulsed field gradient NMR, and complex impedance spectroscopy are analyzed in the light of mol. dynamics simulations to probe the structural, dynamical, and electrochem. properties of this ionic-liquid-based electrolyte. Li addition promotes the nanostructuration of the liquid as evidenced from the appearance of a scattering prepeak that becomes more pronounced. Microscopically, using the partial structure factors determined from mol. dynamics, this prepeak is shown to correspond to the formation of well-ordered pos./neg. charge series and also large aggregates (Lin(BF4)4-m)(4-m+n)-, which develop upon Li addition Such nanoscale ordering entails a drastic decrease in both the mol. mobility and ionic conductivity In particular, the marked association of Li+ cations with four BF4- anions and long ion pairing times, which are promoted upon Li addition, severely hinder the Li+ transport properties. In the experiment, the researchers used 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Recommanded Product: 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate)

3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. Actually, lonic liquids as innovative fluids have received wide attention only during the past two decades. The number of SCI papers published on lonic liquids has exponentially increased from a few in 1996 to >5000 in 2016, exceeding the annual growth rates of other popular scientific areas. Recommanded Product: 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Kweon, Jeonguk; Chang, Sukbok published an article in 2021. The article was titled 《Highly robust iron catalyst system for intramolecular C(sp3)-H amidation leading to γ-lactams》, and you may find the article in Angewandte Chemie, International Edition.Name: Di(1H-imidazol-1-yl)methanone The information in the text is summarized as follows:

Disclosed here is the use of an iron catalyst system for an intramol. C-H amidation toward γ-lactam synthesis from dioxazolone precursors. (Phthalocyanine)FeIIICl was found to catalyze this cyclization with extremely high turnover numbers of up to 47 000 under mild and aerobic conditions. On the basis of exptl. and computational mechanistic studies, the reaction is suggested to proceed by a stepwise radical pathway involving fast hydrogen atom abstraction followed by radical rebound. A plausible origin for the high turnover numbers along with air-compatibility is also rationalized. In addition to this study using Di(1H-imidazol-1-yl)methanone, there are many other studies that have used Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Name: Di(1H-imidazol-1-yl)methanone) was used in this study.

Di(1H-imidazol-1-yl)methanone(cas: 530-62-1) is a peptide coupling reagent,it is used in the synthesis of peptides. Reacts readily with carboxylic acids to form acyl imidazoles; subsequent reaction with amines to form amides goes smoothly.Name: Di(1H-imidazol-1-yl)methanone

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Kollar, Levente; Gobec, Martina; Szilagyi, Bence; Proj, Matic; Knez, Damijan; Abranyi-Balogh, Peter; Petri, Laszlo; Imre, Timea; Bajusz, David; Ferenczy, Gyorgy G.; Gobec, Stanislav; Keseru, Gyorgy M.; Sosic, Izidor published an article in 2021. The article was titled 《Discovery of selective fragment-sized immunoproteasome inhibitors》, and you may find the article in European Journal of Medicinal Chemistry.Reference of 1H-Benzo[d]imidazol-2-amine The information in the text is summarized as follows:

Proteasomes contribute to maintaining protein homeostasis and their inhibition is beneficial in certain types of cancer and in autoimmune diseases. However, the inhibition of the proteasomes in healthy cells leads to unwanted side-effects and significant effort has been made to identify inhibitors specific for the immunoproteasome, especially to treat diseases which manifest increased levels and activity of this proteasome isoform. Here, we report our efforts to discover fragment-sized inhibitors of the human immunoproteasome. The screening of an inhouse library of structurally diverse fragments resulted in the identification of benzo[d]oxazole-2(3H)-thiones, benzo[d]thiazole-2(3H)-thiones, benzo[d]imidazole-2(3H)-thiones, and 1-methylbenzo[d]imidazole-2(3H)-thiones (with a general term benzoXazole-2(3H)-thiones) as inhibitors of the chymotrypsin-like (β5i) subunit of the immunoproteasome. A subsequent structure-activity relationship study provided us with an insight regarding growing vectors. Binding to the β5i subunit was shown and selectivity against the β5 subunit of the constitutive proteasome was determined Thorough characterization of these compounds suggested that they inhibit the immunoproteasome by forming a disulfide bond with the Cys48 available specifically in the β5i active site. To obtain fragments with biol. more tractable covalent interactions, we performed a warhead scan, which yielded benzoXazole-2-carbonitriles as promising starting points for the development of selective immunoproteasome inhibitors with non-peptidic scaffolds. The results came from multiple reactions, including the reaction of 1H-Benzo[d]imidazol-2-amine(cas: 934-32-7Reference of 1H-Benzo[d]imidazol-2-amine)

1H-Benzo[d]imidazol-2-amine(cas: 934-32-7) can be used in the hydrolysis of a choline carbonate. It was also used in the synthesis of imidazo[1,2-a]benzimidazoles.Reference of 1H-Benzo[d]imidazol-2-amine

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Dziwornu, Godwin Akpeko; Coertzen, Dina; Leshabane, Meta; Korkor, Constance M.; Cloete, Cleavon K.; Njoroge, Mathew; Gibhard, Liezl; Lawrence, Nina; Reader, Janette; van der Watt, Mariette; Wittlin, Sergio; Birkholtz, Lyn-Marie; Chibale, Kelly published their research in Journal of Medicinal Chemistry in 2021. The article was titled 《Antimalarial Benzimidazole Derivatives Incorporating Phenolic Mannich Base Side Chains Inhibit Microtubule and Hemozoin Formation: Structure-Activity Relationship and In Vivo Oral Efficacy Studies》.Formula: C7H5ClN2 The article contains the following contents:

A novel series of antimalarial benzimidazole derivatives incorporating phenolic Mannich base side chains at the C2 position, which possess dual asexual blood and sexual stage activities, is presented. Structure-activity relationship studies revealed that the 1-benzylbenzimidazole analogs possessed submicromolar asexual blood and sexual stage activities in contrast to the 1H-benzimidazole analogs, which were only active against asexual blood stage (ABS) parasites. Further, the former demonstrated microtubule inhibitory activity in ABS parasites but more significantly in stage II/III gametocytes. In addition to being bona fide inhibitors of hemozoin formation, the 1H-benzimidazole analogs also showed inhibitory effects on microtubules. In vivo efficacy studies in Plasmodium berghei-infected mice revealed that the frontrunner compound 41(I) exhibited high efficacy (98% reduction in parasitemia) when dosed orally at 4 × 50 mg/kg. Generally, the compounds were noncytotoxic to mammalian cells. In addition to this study using 2-Chloro-1H-benzo[d]imidazole, there are many other studies that have used 2-Chloro-1H-benzo[d]imidazole(cas: 4857-06-1Formula: C7H5ClN2) was used in this study.

2-Chloro-1H-benzo[d]imidazole(cas: 4857-06-1) binds to monoclonal antibodies, inhibiting their binding to their corresponding antigens. This activity may be due to its ability to bind covalently with amino groups on proteins and other molecules.Formula: C7H5ClN2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Quantitative Analysis on Two-Point Ligand Modulation of Iridium Catalysts for Chemodivergent C-H Amidation》 was published in Journal of the American Chemical Society in 2020. These research results belong to Hwang, Yeongyu; Jung, Hoimin; Lee, Euijae; Kim, Dongwook; Chang, Sukbok. HPLC of Formula: 530-62-1 The article mentions the following:

The transition-metal-catalyzed nitrenoid transfer reaction is one of the most attractive methods for installing a new C-N bond into diverse reactive units. While numerous selective aminations are known, understanding complex structural effects of the key intermediates on the observed chemoselectivity is still elusive in most cases. Herein, we report a designing approach to enable selective nitrenoid transfer leading to sp2 spirocyclization and sp3 C-H insertion by cooperative two-point modulation of ligands in the CpXIr(III)(κ2-chelate) catalyst system. Computational anal. led us to interrogate structural motifs that can be attributed to the desired mechanistic dichotomy. Multivariate linear regression anal. on the perturbation on the η5-cyclopentadienyl ancillary (CpX) and LX coligand, wherein we prepared over than 40 new catalysts for screening, allowed for construction of an intuitive yet robust statistical model that predicts a large set of chemoselective outcomes, implying that the catalysts’ structural effects play a critical role on the chemoselective nitrenoid transfer. On the basis of this quant. anal., a new catalytic platform is now established for the unique lactam formation, leading to the unprecedented chemoselective reactivity (up to >20:1) toward a diverse array of competing sites, such as tertiary, secondary, benzylic, allylic C-H bonds, and aromatic π system. In the experimental materials used by the author, we found Di(1H-imidazol-1-yl)methanone(cas: 530-62-1HPLC of Formula: 530-62-1)

Di(1H-imidazol-1-yl)methanone(cas: 530-62-1) is a peptide coupling reagent,it is used in the synthesis of peptides. Reacts readily with carboxylic acids to form acyl imidazoles; subsequent reaction with amines to form amides goes smoothly.HPLC of Formula: 530-62-1

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《A survey-based study of physician practices regarding biotin supplementation.》 was published in The Journal of dermatological treatment in 2020. These research results belong to Waqas, Bukhtawar; Wu, Alan; Yim, Elizabeth; Lipner, Shari R. Computed Properties of C10H16N2O3S The article mentions the following:

Biotin is an important cofactor in several metabolic pathways in humans. Biotin deficiencies are quite uncommon and there is limited data to support recommending it to treat hair, skin, and nail conditions. A 2017 FDA safety alert warned that biotin can interfere with laboratory testing resulting in incorrect diagnoses and even death. Therefore, our study objectives were to assess biotin recommendation practices and survey physician knowledge of biotin interference in routine laboratory tests. In a national survey of 149 physicians, we found that 43.9% of physicians prescribe biotin, primarily for hair and nail disorders, and 39.5% recommended other biotin-containing supplements. Most physicians answered correctly that there are no randomized studies that biotin improves dermatological conditions, and that biotin interferes with thyroid and troponin testing. Few knew of interference with b-HCG, Hepatitis serology, HIV serology and Vitamin D levels, and 19.5% were unaware of any interference. Almost half of physicians did not ask patients to discontinue biotin prior to laboratory testing. Our study shows that physicians continue to prescribe biotin despite knowledge gaps about laboratory interference, and highlights the need for increasing physician awareness of risks and benefits of recommending biotin to treat skin, hair, and nail conditions. In the experiment, the researchers used 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5Computed Properties of C10H16N2O3S)

5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5) may be used to elute proteins from avidin/streptavidin resins. It has been used for culturing of oligodendrocytes.Computed Properties of C10H16N2O3S And it has been used for blocking endogenous biotin during immunohistology procedures.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Assessment of risk for interference by circulating biotin in samples received for high sensitivity troponin-T, thyrotropin, and for prostate specific antigen testing by immunoassays》 was published in Clinical Laboratory (Mainz, Germany) in 2020. These research results belong to Nguyen, Khanh Q. N.; Langevin, Rachel; Fankhauser, Kimberly; Hashim, Ibrahim A.. Computed Properties of C10H16N2O3S The article mentions the following:

This study aims to examine the risk for biotin interference among our patient population. Serum and plasma leftover samples from 183 different patients were collected following completion of hs-TnT, TSH, and PSA testing. Aliquots were stored frozen at -20°C until anal. Biotin concentrations in these samples were measured using an ELISA (ALPCO, Salem, NH, USA) according to the manufacture’s protocol. Samples with biotin levels of 20 ng/mL or greater were considered as highrisk samples (HRS) for biotin interference. The overall concentrations of biotin in our patients’ samples ranged from 0.02 ng/mL to 11.38 ng/mL. The median and (range) biotin concentrations in hs-TnT, TSH, and PSA samples were 0.27 ng/mL (0.02 – 6.86 ng/mL), 0.39 ng/mL (0.08 – 11.38 ng/mL), and 0.47 ng/mL (0.09 – 7.73 ng/mL), resp. Although there was no significant difference between biotin levels in samples for TSH or PSA measurement (p – 0.85), biotin in samples for PSA and for hs-TnT and in samples for TSH and hs-TnT were significantly different (p = 0.049 and 0.089), resp. None of the samples had biotin levels greater than or equal to 20 ng/mL. Using representative samples with requests for hs-TnT, TSH, and PSA testing, where reliable performance for the selected assays at their lowest measurement range is required for clin. intervention, among our study population the risk was considered minimal as their circulating biotin levels were less than 20 ng/mL.5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5Computed Properties of C10H16N2O3S) was used in this study.

5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5) may be used to elute proteins from avidin/streptavidin resins. It has been used for culturing of oligodendrocytes.Computed Properties of C10H16N2O3S And it has been used for blocking endogenous biotin during immunohistology procedures.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Effects of primary amine-based coatings on microglia internalization of nanogels》 was published in Colloids and Surfaces, B: Biointerfaces in 2020. These research results belong to Mauri, Emanuele; Veglianese, Pietro; Papa, Simonetta; Rossetti, Arianna; De Paola, Massimiliano; Mariani, Alessandro; Posel, Zbysek; Posocco, Paola; Sacchetti, Alessandro; Rossi, Filippo. Formula: C7H6N4O The article mentions the following:

Nanogels represent a pivotal class of biomaterials in the therapeutic intracellular treatment of many diseases, especially those involving the central nervous system (CNS). Their biocompatibility and synergy with the biol. environment encourage their cellular uptake, releasing the curative cargo in the desired area. As a main drawback, microglia are generally able to phagocytize any foreign element overcoming the blood brain barrier (BBB), including these materials, drastically limiting their bioavailability for the target cells. In this work, we investigated the opportunity to tune and therefore reduce nanogel internalization in microglia cultures, exploiting the orthogonal chem. functionalization with primary amine groups, as a surface coating strategy. Nanogels are designed by following two methods, the direct grafting of aliphatic primary amines and the linkage of -NH2 modified PEG on the nanogel surface. The latter synthesis was proposed to evaluate the combination of PEGylation with the basic nitrogen atom. The achieved results indicate the possibility of effectively modulating the uptake of nanogels, in particular limiting their internalization using the PEG-NH2 coating. This outcome could be considered a promising strategy for the development of carriers for drugs or gene delivery that could overcome microglia scavenging. In the experiment, the researchers used Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Formula: C7H6N4O)

Di(1H-imidazol-1-yl)methanone(cas: 530-62-1) is a peptide coupling reagent,it is used in the synthesis of peptides. Reacts readily with carboxylic acids to form acyl imidazoles; subsequent reaction with amines to form amides goes smoothly.Formula: C7H6N4O

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Ambident Reactivity of Imidazolium Cations as Evidence of the Dynamic Nature of N-Heterocyclic Carbene-Mediated Organocatalysis》 was published in Chemistry – A European Journal in 2020. These research results belong to Galkin, Konstantin I.; Karlinskii, Bogdan Ya.; Kostyukovich, Alexander Yu.; Gordeev, Evgeniy G.; Ananikov, Valentine P.. HPLC of Formula: 141556-45-8 The article mentions the following:

This work reveals ambident nucleophilic reactivity of imidazolium cations towards carbonyl compounds at the C2 or C4 carbene centers depending on the steric properties of the substrates and reaction conditions. Such an adaptive behavior indicates the dynamic nature of organocatalysis proceeding via a covalent interaction of imidazolium carbenes with carbonyl substrates and can be explained by generation of the H-bonded ditopic carbanionic carbenes. In addition to this study using 1,3-Dimesityl-1H-imidazol-3-ium chloride, there are many other studies that have used 1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8HPLC of Formula: 141556-45-8) was used in this study.

1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8) is a ligand for arylation of aldehydes and for carbene catalyzed intermolecular arylation of C-H bonds. It is used as a phosphine-free ligand in various metal-catalyzed coupling reactions, often with advantageous results in difficult cases.HPLC of Formula: 141556-45-8

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem