Category: amides-buliding-blocks

Zhao, Wenjuan;Liu, Dianwen;Feng, Qicheng published 《Enhancement of salicylhydroxamic acid adsorption by Pb(II) modified hemimorphite surfaces and its effect on floatability》 in 2020. The article was appeared in 《Minerals Engineering》. They have made some progress in their research.Application In Synthesis of N,2-Dihydroxybenzamide The article mentions the following:

Hemimorphite is an important zinc oxide mineral, but only a few studies have been conducted on the enhanced flotation recovery of hemimorphite with salicylhydroxamic acid (SHA) as the collector. In this study, the effect of Pb(II) on SHA adsorption on the hemimorphite surface with regard to its floatability was systematically studied. XPS anal. showed that the Pb species could interact with O sites on the hemimorphite surface, thus forming -Zn-O-Pb and -Si-O-Pb complexes on the mineral surface and exhibiting strong reactivity toward SHA. Zeta potential measurements indicated that Pb²⁺ and Pb(OH)⁺ adsorbed onto the hemimorphite surfaces via phys. and chem. adsorption within a pH range that was suitable for the flotation, further enhancing SHA adsorption on the activated mineral surface. Adsorption tests showed that more SHA adsorbed on the Pb-treated hemimorphite surface than on the untreated hemimorphite, and Pb-SHA complexes that were generated in the pulp solution could also adsorb on the surface of hemimorphite. Micro-flotation tests confirmed that the floatability of hemimorphite significantly increased after treatment with Pb(II) ions when SHA was used as the collector. Thus, this paper proposes a promising method of improving the flotation recovery of hemimorphite through via surface modification with Pb(II) ions. And N,2-Dihydroxybenzamide (cas: 89-73-6) was used in the research process.

N,2-Dihydroxybenzamide(cas: 89-73-6) is widely used for a variety of roles in biology and medicine as a chelating therapy.Application In Synthesis of N,2-DihydroxybenzamideIt inhibits bacterial or fungi growth by interfering with iron uptake. It is also active as a inhibitor of enzyme involved in tumour growths.

Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Recommanded Product: 6-AminonicotinamideIn 2016, Arts, Rob J. W.;Novakovic, Boris;ter Horst, Rob;Carvalho, Agostinho;Bekkering, Siroon;Lachmandas, Ekta;Rodrigues, Fernando;Silvestre, Ricardo;Cheng, Shih-Chin;Wang, Shuang-Yin;Habibi, Ehsan;Goncalves, Luis G.;Mesquita, Ines;Cunha, Cristina;van Laarhoven, Arjan;van de Veerdonk, Frank L.;Williams, David L.;van der Meer, Jos W. M.;Logie, Colin;O’Neill, Luke A.;Dinarello, Charles A.;Riksen, Niels P.;van Crevel, Reinout;Clish, Clary;Notebaart, Richard A.;Joosten, Leo A. B.;Stunnenberg, Hendrik G.;Xavier, Ramnik J.;Netea, Mihai G. published 《Glutaminolysis and Fumarate Accumulation Integrate Immunometabolic and Epigenetic Programs in Trained Immunity》. 《Cell Metabolism》published the findings. The article contains the following contents:

Induction of trained immunity (innate immune memory) is mediated by activation of immune and metabolic pathways that result in epigenetic rewiring of cellular functional programs. Through network-level integration of transcriptomics and metabolomics data, we identify glycolysis, glutaminolysis, and the cholesterol synthesis pathway as indispensable for the induction of trained immunity by β-glucan in monocytes. Accumulation of fumarate, due to glutamine replenishment of the TCA cycle, integrates immune and metabolic circuits to induce monocyte epigenetic reprogramming by inhibiting KDM5 histone demethylases. Furthermore, fumarate itself induced an epigenetic program similar to β-glucan-induced trained immunity. In line with this, inhibition of glutaminolysis and cholesterol synthesis in mice reduced the induction of trained immunity by β-glucan. Identification of the metabolic pathways leading to induction of trained immunity contributes to our understanding of innate immune memory and opens new therapeutic avenues.6-Aminonicotinamide (cas: 329-89-5) were involved in the experimental procedure.

6-Aminonicotinamide (cas:329-89-5)Recommanded Product: 6-Aminonicotinamide is an aminopyridine, which is a specific pentose inhibitor and thus inhibits the NADP production.It can be used as a reactant for the synthesis of 6-substituted imidazo[1,2-a]pyridines with potential application as chemotherapeutic drugs.

Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Chen, Zi;Lu, Dongdong;Xie, Hangqing;Yang, Xiaolei;Li, Yang;Bao, Chenhao;Lei, Lei;Xu, Shiqing published 《Triplet Exciton Enhanced Radioluminescence of Ga³⁺/Tb³⁺ Metallacrown Scintillators for X-Ray Detection》. The research results were published in《Advanced Optical Materials》 in 2022.Recommanded Product: N,2-Dihydroxybenzamide The article conveys some information:

The increasing demand for radiation detection in many applications has led to demanding requirements for scintillators. Realizing low-dose, pollution-free, and reliable X-ray detection has become a key tech. challenge. Here, a triplet-enhanced lanthanide radioluminescence (RL) material Ga³⁺/Tb³⁺ metallacrowns (Tb-1) is reported. This Tb-1 crystal emits bright green luminescence under UV light or X-ray excitation, and the emission intensity is 286 and 242 times that of Tb³⁺ in inorganic salt, resp. Tb-1 crystal is further passivated by trioctylphosphine oxide (TOPO), and the enhanced RL intensity is equivalent to that of com. Tl-doped cesium iodide scintillator. In addition, RL of Tb-1-TOPO has an extremely narrow full width at half maximum and an excellent linear response to the X-ray dose rate. The detection limit is calculated to be 0.146μGy s^-1, which is 38 times lower than typical medical imaging doses. Triplet-enhanced lanthanide RL provides new ideas for replacing scintillators that require high temperature synthesis processes such as inorganic phosphors and ceramics, and provides a new alternative scintillator material for flexible X-ray monitoring, bioimaging, radiotherapy, and other applications. To complete the study, the researchers used N,2-Dihydroxybenzamide (cas: 89-73-6) .

N,2-Dihydroxybenzamide(cas: 89-73-6) is widely used for a variety of roles in biology and medicine as a chelating therapy.Recommanded Product: N,2-DihydroxybenzamideIt inhibits bacterial or fungi growth by interfering with iron uptake. It is also active as a inhibitor of enzyme involved in tumour growths.

Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Safety of cis-13-Docosenamide《Anti-inflammatory and anti-asthmatic effects of TMDCT decoction in eosinophilic asthma through Treg/ Th17 balance》 was published in 2022. The authors were Zhou, Yumei;Zhao, Haihong;Wang, Tieshan;Zhao, Xiaoshan;Wang, Ji;Wang, Qi, and the article was included in《Frontiers in Pharmacology》. The author mentioned the following in the article:

Tuo-Min-Ding-Chuan decoction (TMDCT) is a Traditional Chinese Medicine (TCM) formula consisting of twelve herbs that can relieve the symptoms and treat allergic asthma. Yet, the underlying mechanism of action is still unclear. In this study, we investigated the effect of TMDCT in regulating Treg/Th17 cells immune balance and explored potential metabolic and gut biomarkers associated with Treg and Th17 cells in eosinophilic asthma mice treated by TMDCT. We found that TMDCT increases Treg cells percentage and decreases Th17 cells percentage in the ovalbumin (OVA) -induced eosinophilic asthma mice model. Furthermore, Imidazoleacetic acid, DL-glutamine, L-pyroglutamic acid, 2-deoxy-D-glucose were preliminary identified as biomarkers in plasma metabolites treated by TMDCT, meanwhile genus Desulfovibrio, genus Butyricimonas and genus Prevotella 9 were preliminary identified as gut microbiota biomarkers after TMDCT treatment. These results provide an exptl. foundation for the treatment of allergic asthma with Chinese herbal compoundscis-13-Docosenamide (cas: 112-84-5) were involved in the experimental procedure.

cis-13-Docosenoamide(cas: 112-84-5) was employed as: standard in determination of fatty acid amides in polyethylene packaging film by GC/MS;slip agent for polymers to reduce their friction coefficient and to make films easier to handle.Safety of cis-13-Docosenamide

Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Zhang, Jing;Qian, Xing-Kai;Song, Pei-Fang;Li, Xiao-Dong;Wang, An-Qi;Huo, Hong;Yao, Jing-Chun;Zhang, Gui-Min;Zou, Li-Wei published 《A high-throughput screening assay for dipeptidyl peptidase-IV inhibitors using human plasma》 in 2021. The article was appeared in 《Analytical Methods》. They have made some progress in their research.HPLC of Formula: 2444-46-4 The article mentions the following:

Dipeptidyl peptidase-IV (DPP-IV) plays a critical role in glucose metabolism and has become an important target for type 2 diabetes mellitus. We previously reported a two-photon fluorescent probe glycyl-prolyl-N-butyl-4-amino-1,8-naphthalimide (GP-BAN) for DPP-IV detection with high specificity and sensitivity. In this study, a high-throughput screening (HTS) method for DPP-IV inhibitors using human plasma as the enzyme source was established and optimized. Further investigations demonstrate that the IC₅₀ value of sitagliptin (listed as the DPP-IV inhibitor) determined with human recombinant DPP-IV (36.22 nM) is very similar to that in human plasma (39.18 nM), and sitagliptin acts as a competitive inhibitor against human plasma DPP-IV-mediated GP-BAN hydrolysis. These results indicate that expensive human recombinant DPP-IV can be replaced by human plasma in this GP-BAN-based assay. On this basis, GP-AMC (com. probe) was used as a comparison to verify this method, and the catalytic efficacy (Vmax/Km) for GP-AMC (0.09 min^-1) hydrolysis in human plasma is lower than that for GP-BAN (0.21 min^-1). Further anal. of inhibition kinetics (sitagliptin) and mol. docking (GP-BAN and GP-AMC) showed that GP-BAN has better specificity and affinity for enzymes than GP-AMC. Finally, the optimized method was used for the HTS of DPP-IV inhibitors in 69 natural alkaloids.N-Vanillylnonanamide (cas: 2444-46-4) were involved in the experimental procedure.

N-Vanillylnonanamide(cas:2444-46-4) is a capsaicin analog that has been used to study the effects of capsaicin on energy metabolism and bowel disease.HPLC of Formula: 2444-46-4 It has been shown to be effective in the treatment of bowel disease, by inhibiting the production of proinflammatory cytokines and prostaglandins.

Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Electric Literature of C6H7N3O《Metabolic interaction of hydrogen peroxide and hypoxia in zebrafish fibroblasts》 was published in 2020. The authors were Dikova, Valentina;Vorhauser, Julia;Geng, Anne;Pelster, Bernd;Sandbichler, Adolf Michael, and the article was included in《Free Radical Biology & Medicine》. The author mentioned the following in the article:

Cells require oxygen for aerobic metabolism, which may also result in the production of reactive oxygen species (ROS) as a byproduct. Under low oxygen conditions, ROS formation has been reported to either increase or decrease. We addressed this physiol. response for the first time in zebrafish embryonic fibroblasts (Z3) and used a hydrogen peroxide (H₂O₂)-specific fluorescent protein (roGFP2-Orp1) either targeted to the mitochondria or expressed in the cytosol. Microfluidic live-cell imaging measurements showed that oxygen deprivation in Z3 cells results in decreased or stable H₂O₂ levels within the mitochondria or the cytosol, resp., and that the reductive shift recorded in the mitochondrial matrix is directly dependent on oxygen concentration The response was accompanied by a transient increase in extracellular acidification rate (ECAR) and a lower cellular reducing potential as assessed by the viability stain alamarBlue. Complex I and III inhibition with Rotenone and Antimycin A led to H₂O₂ production under normoxia but these inhibitors were not able to avert the reductive shift under hypoxia. Only by system-wide inhibition of flavin-containing oxidases with Diphenyleneiodonium (DPI) were we able to decrease the reductive shift, while selective inhibition of NADPH oxidases with the inhibitor Apocynin had no effect on the hypoxia response. Since DPI also led to a strong increase in ECAR we found that, in order to keep the cytosolic H₂O₂ levels stable, glycolytic metabolism was of fundamental importance. According to our experiments with the glucose-6-phosphate dehydrogenase inhibitor 6-Aminonicotinamide, this was attributable to the pentose phosphate pathway producing reducing equivalent required for ROS degradation The experimental procedure involved many compounds, such as 6-Aminonicotinamide (cas: 329-89-5) .

6-Aminonicotinamide (cas:329-89-5)Electric Literature of C6H7N3O is an aminopyridine, which is a specific pentose inhibitor and thus inhibits the NADP production.It can be used as a reactant for the synthesis of 6-substituted imidazo[1,2-a]pyridines with potential application as chemotherapeutic drugs.

Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Zhang, Xin;Zheng, Yuanrong;Zhou, Ran;Ma, Ming published 《Comprehensive identification of molecular profiles related to sensory and nutritional changes in Mongolian cheese during storage by untargeted metabolomics coupled with quantification of free amino acids》 in 2022. The article was appeared in 《Food Chemistry》. They have made some progress in their research.Application of 112-84-5 The article mentions the following:

Non-targeted metabolomics was used to study metabolites with low mol. weight which may contribute to quality deterioration of Mongolian cheese during storage. Microbiol. anal., pH, FAAs (free amino acids), volatile compounds, and sensory evaluation of the cheese during storage were also studied. A total of 278 metabolites were identified in Mongolian cheese, of which 51 metabolites were used as differential metabolites, including amino acids, peptides, organic acids, lipids, and carbohydrates. Bitter amino acids, bitter peptide (Phe-Ile), and organic acids (sinapic acid, butyric acid) increased during storage. Metabolic pathway anal. showed that differential metabolites were mainly related to amino acid metabolism, such as β-alanine metabolism and glycine, serine, and threonine metabolism Moreover, accompanied with the increased contents of short-chain fatty acids, 2-undecanone and Et esters, strength of odor and unpleasant smell increased but overall acceptability decreased during Mongolian cheese storage. This research provides suitable strategies for quality control of Mongolian cheese during shelf life.cis-13-Docosenamide (cas: 112-84-5) were involved in the experimental procedure.

cis-13-Docosenoamide(cas: 112-84-5) was employed as: standard in determination of fatty acid amides in polyethylene packaging film by GC/MS;slip agent for polymers to reduce their friction coefficient and to make films easier to handle.Application of 112-84-5

Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

COA of Formula: C22H43NOIn 2022, Chen, Zhi-Feng;Lin, Qin-Bao;Dong, Ben;Zhong, Huai-Ning;Wang, Zhi-Wei published 《Comparison of the ability of UV-Vis and UPLC-Q-TOF-MS combined with chemometrics to discriminate recycled and virgin polyethylene》. 《Journal of Hazardous Materials》published the findings. The article contains the following contents:

A growing attention is attracted to the use of recycled plastics as food contact materials, and its chem. safety research and discrimination approach are indispensable. In current study, UV-visible spectrometry (UV-Vis) and ultra-performance liquid chromatog. quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS) were used to provide spectral and mass fingerprinting for polyethylene (PE). Coupling with chemometrics, two methods were developed to discriminate recycled and virgin PE. UV-Vis combined with chemometrics could be a more accessible, simpler and faster approach. 237-331 nm in UV spectrum was regarded as marker region selected by orthogonal partial least-squares discrimination anal. (OPLS-DA) and the accuracy of both calibration and validation set could reach 100% in linear discrimination anal. (LDA) based on this region. Besides, 2314 ions were detected by UPLC-Q-TOF-MS and processed by MS-DIAL. 48 candidate chems. were identified, including ketone, esters, carboxylic acid, alcs. and phenols, amine, nitriles, aldehydes and others. Possible origins of these compounds could be classified as plastic, food, drug, cosmetics and pesticide related. Many of these compounds are highly toxic, especially pesticide related, indicating that recycling in closed loop or sorting by the recycled plastic articles is very necessary if the recycled PE is going to be used as food contact material. To complete the study, the researchers used cis-13-Docosenamide (cas: 112-84-5) .

cis-13-Docosenoamide(cas: 112-84-5) is a primary fatty amide resulting from the formal condensation of the carboxy group of erucic acid with ammonia.COA of Formula: C22H43NO It has a role as a human metabolite, a rat metabolite, a mammalian metabolite, a plant metabolite and an EC 3.1.1.7 (acetylcholinesterase) inhibitor.

Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Guo, Yu-Hua;Yu, You-Zhu;Shen, Yan-Hong;Yang, Li-Guo;Liu, Na-Na;Zhou, Zhong-Yuan;Niu, Yong-Sheng published 《”Three-in-One” Structural-Building-Mode-Based Ti₁₆-Type Titanium Oxo Cluster Entirely Protected by the Ligands Benzoate and Salicylhydroxamate》 in 2022. The article was appeared in 《Inorganic Chemistry》. They have made some progress in their research.Product Details of 89-73-6 The article mentions the following:

Titanium oxo clusters (TOCs) with accurate mol. structures have potential applications in photocatalysis, such as photocatalytic degradation, hydrogen production, and water oxidation The hydrolytic stability and light absorption ability of TOCs have important impacts on photocatalysis, where the selection of peripheral organic ligands plays a significant role. In this regard, salicylhydroxamic acid (abbreviated as H₃L) attracts our attention, acting as a ligand for its multidentate and dye-functional features, which can increase the hydrolytic stability and broaden light absorption for TOCs. Herein, two TOCs were solvothermally synthesized and structurally characterized using H₃L, formulated as [Ti₈(μ₂-O)₂(μ₃-O)₂(OⁱPr)₁₂(L)₄]·2CH₃CN (1) and [Ti₁₆(μ₂-O)₁₀(μ₃-O)₄(PhCOO)₁₄(L)₆(HL)₂]·4CH₃CN·2ⁱPrOH (2). Complex 2 was obtained by adding excessive benzoic acid over the reaction system of 1, resulting in enhanced hydrolytic stability via the replacement of all alkoxy ligands by multidentate ligands for protection. Interestingly, for the first time, the “three-in-one” structural building mode with {Ti₆} + {Ti₄} + {Ti₆} by the common subunits in 2 was observed among all reported TOCs. Moreover, complex 2 can strongly absorb visible light reaching up to 700 nm and exhibit obvious activity for the photodegradation of methyl orange. The experimental procedure involved many compounds, such as N,2-Dihydroxybenzamide (cas: 89-73-6) .

N,2-Dihydroxybenzamide(cas: 89-73-6) has also been shown to be active against wild-type strains of Candida glabrata, but not against resistant mutants. Product Details of 89-73-6 This drug may have therapeutic potential for bone cancer and metabolic disorders such as obesity.

Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Le Coz, Florian;Suzuki, Noriyuki;Nagahori, Hirohisa;Omori, Takashi;Saito, Koichi published 《Hand1-Luc embryonic stem cell test (Hand1-Luc EST): a novel rapid and highly reproduciblein vitro test for embryotoxicity by measuring cytotoxicity and differentiation toxicity using engineered mouse ES cells》 in 2015. The article was appeared in 《Journal of Toxicological Sciences》. They have made some progress in their research.Application In Synthesis of 6-Aminonicotinamide The article mentions the following:

The embryonic stem cell test (EST) is a promising alternative method for evaluating embryotoxicity of test chems. by measuring cytotoxicity and differentiation toxicity using mouse ES cells. Differentiation toxicity is analyzed by microscopically counting the beating of embryonic bodies after 10 days of culture. However, improvements are necessary to reduce the laborious manipulations involved and the time required to obtain results. We have previously reported the successful stable transfection of ES cells (ES-D3) with the heart and neural crest derivatives expressed transcript 1 (Hand1) gene and the establishment of a 96-well multi-plate-based new EST with luciferase reporter assay 6 days after treatment with test chems. Now, we propose an even more rapid and easier EST, named Hand1-Luc EST. We established another cell line to monitor the Hand1 gene expression via a luciferase reporter gene. By mRNA anal. and luciferase assay, we examined in detail the luciferase activity during cell differentiation, which allowed us to reduce the time of measurement from day 6 to day 5 (120 h). Furthermore, the protocol was improved, with, among others, the measurement of cytotoxicity and differentiation toxicity taking place in the same 96-well round bottom plate instead of two different plates. With the pos. control, 5-fluorouracil (5-FU), and 9 test chems., data with high reproducibility and very low variation (CV < 50%) in the relevant endpoints were obtained. This study shows that the Hand1-Luc EST could provide an accurate and sensitive short-term test for prediction of embryotoxicants by measuring cytotoxicity and differentiation toxicity from the same sample. The experimental procedure involved many compounds, such as 6-Aminonicotinamide (cas: 329-89-5) .

6-Aminonicotinamide (cas:329-89-5)Application In Synthesis of 6-Aminonicotinamide is an inhibitor of the NADP+-dependent enzyme, PGD (6-phosphogluconate dehydrogenase). Studies have also shown that 6-aminonicotinamide induces apoptosis in tumor cells and causes glial cell degeneration.

Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics