Category: amides-buliding-blocks

Miao, Yongchao;Wen, Shuming;Feng, Qicheng;Liao, Runpeng published 《Enhanced adsorption of salicylhydroxamic acid on ilmenite surfaces modified by Fenton and its effect on floatability》 in 2021. The article was appeared in 《Colloids and Surfaces, A: Physicochemical and Engineering Aspects》. They have made some progress in their research.Name: N,2-Dihydroxybenzamide The article mentions the following:

This work reports a new method of using Fenton to oxidize and modify the ilmenite surface using salicylhydroxamic acid (SHA) as the collector. The activation mechanism of this process was studied by analyzing changes that occurred on the ilmenite surface. Micro-flotation showed that the maximum recovery of ilmenite after treatment with Fenton increased by 37% and attributed to the increase in the adsorbed SHA amount on the ilmenite surface. Zeta potential and XPS measurement data showed that Fenton promoted the conversion of Fe2+→Fe3+ on the ilmenite surface that enhanced SHA adsorption. After adding Fenton, the Fe-SHA complex (formed in the pulp) interacted with the O sites of ilmenite surfaces, and improved the ilmenite floatability. The IR spectra of the ilmenite+Fenton+SHA system showed several intense bands that indicated enhanced SHA chemisorption on the ilmenite surface. Thus, ilmenite treatment with the Fenton promoted its surface reactivity caused SHA to bind with the ilmenite surface and enhanced the ilmenite floatability.N,2-Dihydroxybenzamide (cas: 89-73-6) were involved in the experimental procedure.

N,2-Dihydroxybenzamide(cas: 89-73-6) is widely used for a variety of roles in biology and medicine as a chelating therapy.Name: 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

Liu, Ying;Zhang, Hua;Cui, Yan;Zheng, Yanli;Chen, Hui;Hu, Zhangli;Wu, Qingyu published 《Distinct roles of alternative oxidase pathway during the greening process of etiolated algae》 in 2021. The article was appeared in 《Science China: Life Sciences》. They have made some progress in their research.Safety of N,2-Dihydroxybenzamide The article mentions the following:

The vital function of mitochondrial alternative oxidase (AOX) pathway in optimizing photosynthesis during plant de-etiolation has been well recognized. However, whether and how AOX impacts the chloroplast biogenesis in algal cells remains unclear. In the present study, the role of AOX in regulating the reassembly of chloroplast in algal cells was investigated by treating Auxenochlorella protothecoides with salicylhydroxamic acid (SHAM), the specific inhibitor to AOX, in the heterotrophy to autotrophy transition process. Several lines of evidences including delayed chlorophyll accumulation, lagged reorganization of chloroplast structure, altered PSI/PSII stoichiometry, and declined photosynthetic activities in SHAM treated cells indicated that the impairment in AOX activity dramatically hindered the development of functioning chloroplast in algal cells. Besides, the cellular ROS levels and antioxidant enzymes activities were increased by SHAM treatment, and the perturbation on the balance of NAD⁺/NADH and NADP⁺/NADPH ratios was also observed in A. protothecoides lacking AOX activity, indicating that AOX was essential in promoting ROS scavenging and keeping the redox homeostasis for algal chloroplast development during greening. Our study revealed the essentiality of mitochondrial AOX pathway in sustaining algal photosynthetic performance and provided novel insights into the physiol. roles of AOX on the biogenesis of photosynthetic organelle in algae.N,2-Dihydroxybenzamide (cas: 89-73-6) were involved in the experimental procedure.

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. Safety of N,2-Dihydroxybenzamide This drug may have therapeutic potential for bone cancer and metabolic disorders such as obesity.

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

Rosas, Julieta;Martinez, Joel O.;Alonso, Pedro;Miranda, Rene;Velasco, Luis;Rubio-Perez, Laura;Perez, Francisco J. published 《Alternative mass spectrometry techniques for the validation of the fragmentation pattern of capsaicin and dihydrocapsaicin》. The research results were published in《Rapid Communications in Mass Spectrometry》 in 2019.Recommanded Product: N-Vanillylnonanamide The article conveys some information:

Rationale : Capsaicinoids are prevalent secondary metabolites in many natural and synthetic pharmacol. compounds To date, several soft ionization studies related to capsaicinoids have been reported; they all proposed a common fragmentation pattern based on a rearrangement of the aromatic double bonds and the fragmentation of the various positional acyl chains. However, the mechanism has never been validated by high-resolution analyses. Consequently, in this work, a validated fragmentation mechanism of the main capsaicinoids, capsaicin (1) and dihydrocapsaicin (2), is offered. Methods : In order to propose and validate a common electron ionization (EI) fragmentation mechanism for the target analytes, the following mass spectrometric methods were employed: collision-induced dissociation (CID) by means of linked scans (LS), reinforcing the methodol. by high-resolution mass spectrometry (HRMS), in addition to appropriate deuterium-labeled experiments performed using gas chromatog./mass spectrometry (GC/MS) and direct anal. in real time (DART). Results : In a first stage, a common EI fragmentation pattern comprising two pathways was proposed for compounds 1 and 2; then, the suggested mechanism was validated by CID-LS together with HRMS complemented by DART-deuterium-labeling studies. The obtained results are indicative that the corresponding mol. ions were conveniently observed, m/z 305 and m/z 307; it is worth noting that the common base peak is in correspondence with a tropylium ion derivative (m/z 137), as a consequence of a McLafferty rearrangement. In addition to these highlighted fragments, other common ions, m/z 122 and m/z 94, and their corresponding trajectory, were confirmed using the same approach. Finally, the proposed mechanism was complementarily validated by deuterium-labeling studies, taking into account the two exchangeable hydrogens present in the phenolic and the amidic moieties. Conclusions : A common validated EI fragmentation pattern for both capsaicin and dihydrocapsaicin was established using appropriated mass spectrometric methods together with convenient hydrogen/deuterium labeling. This study provides a new alternative to validate mechanisms of fragmentation of important natural products. And N-Vanillylnonanamide (cas: 2444-46-4) was used in the research process.

N-Vanillylnonanamide(cas:2444-46-4) is also called pelargonic acid vanillylamide or PAVA.Recommanded Product: N-Vanillylnonanamide Similar to capsaicin, nonivamide can activate the TRPV1 receptor, thus, stimulate the firing rate of dopaminergic neurons in the ventral tegmental area of the brain and to increase the expression of the serotonin receptor gene HTR2A.

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

Gutierrez-Villagomez, Juan Manuel;Ramirez-Chavez, Enrique;Molina-Torres, Jorge;Vazquez-Martinez, Juan published 《From Natural to Synthetic Quorum Sensing Active Compounds: Insights to Develop Specific Quorum Sensing Modulators for Microbe-Plant Interaction》 in 2020. The article was appeared in 《ACS Symposium Series》. They have made some progress in their research.Computed Properties of C17H27NO3 The article mentions the following:

It is clear the importance of plant-microbe interactions to accomplish food safety and sustainable agriculture. Many plant-microbe interactions depend on bacterial quorum sensing (QS) systems, so the manipulation of these communication systems could be a powerful instrument to modulate plant development. The search of compounds with the capacity to modulate the microbial communication systems using docking mol. anal. methods along with chromatog. and miniaturized microbiol. techniques offers a robust tool-kit for designing and testing quorum quenching (QQ) active compounds Further, the synthesis of QQ compounds can be achieved by applying enzymic processes with the advantages of lowering costs and generating fewer byproducts. To exemplify these processes, herein, a group of natural compounds known as alkamides and piperamides were tested using mol. docking simulations to detect QQ active compounds against the CviR and LasR QS receptors of Gram-neg. bacteria. The docking results show that some alkamides and piperamides bind specifically to each of the studied QS receptors. The structural anal. of the resp. crystalized-receptor native ligand and the best-docked alkamide/piperamide was used to design acyl amide-like compounds These new acyl amide-like compounds bind more efficiently to the studied QS receptors than the native ligands, according to the docking results. The designed compounds could also potentially modulate plant-microbe interactions related to cellular processes dependent on bacterial QS. The data we describe contributes to the understanding of plant-microbe interactions and investigates methods to modulate plant-microbe interactions that can impact sustainable food production The experimental procedure involved many compounds, such as N-Vanillylnonanamide (cas: 2444-46-4) .

N-Vanillylnonanamide(cas:2444-46-4) has antifouling properties.Computed Properties of C17H27NO3 It acts as an nicotinamide adenine dinucleotide phosphate (NADPH) inhibitor.N-Vanillylnonanamide has been used for the preparation of spicules.

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

Zhang, Mengzhu;Ge, Yunshan;Wang, Xin;Tan, Jianwei;Hao, Lijun;Xu, Hongming published 《Particulate emissions from direct-injection and combined-injection vehicles fueled with gasoline/ethanol match-blends – Effects of ethanol and aromatic compositions》. The research results were published in《Fuel》 in 2021.Reference of cis-13-Docosenamide The article conveys some information:

Gasoline direct injection (GDI) vehicles are up against the great challenge of particulate emissions, which were mandatorily constrained by the China-6 emission standard Given the worldwide fuel transition from gasoline to gasoline/ethanol blends, it is important to discuss the effects of ethanol and aromatic contents on particulate emissions of GDI vehicles. In this work, 10% volume of ethanol was added into China-6b gasoline replacing C8 (carbon atoms = 8) alkanes (E10), and the specific aromatic compounds in E10 fuels were adjusted under holding total aromatic content. As there was no limit on individual aromatic compounds in the gasoline standard, the effects of aromatic compounds were investigated over the worldwide harmonized light-duty test cycle (WLTC) with engine cold-start and hot-start at room and low temperatures For GDI vehicles, the results showed that ethanol substituting part of C8 alkanes in gasoline increased the particulate number (PN) but decreased particulate mass (PM) emissions. For vehicles using the combined port fuel injection (PFI)/GDI injection systems, the PM and PN emissions climbed. Aromatic compositions significantly impacted the particulate emissions. With the concentrations of heavy aromatics increased, PM and PN emissions of both GDI and combined-injection vehicles were shown to multiply. To complete the study, the researchers used cis-13-Docosenamide (cas: 112-84-5) .

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.Reference of cis-13-Docosenamide

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

Recommanded Product: N,2-DihydroxybenzamideIn 2020, Salerno, Elvin V.;Eliseeva, Svetlana V.;Schneider, Bernadette L.;Kampf, Jeff W.;Petoud, Stephane;Pecoraro, Vincent L. published 《Visible, Near-Infrared, and Dual-Range Luminescence Spanning the 4f Series Sensitized by a Gallium(III)/Lanthanide(III) Metallacrown Structure》. 《Journal of Physical Chemistry A》published the findings. The article contains the following contents:

Ga³⁺/Ln³⁺ metallacrowns (MCs) [LnGa₈(shi)₈(OH)₄]Na·xMeOH·yH₂O (Ln-1, Ln = Pr³⁺, Nd³⁺, Sm³⁺-Yb³⁺ and analog Y³⁺; H₃shi = salicylhydroxamic acid) is presented. Ln-1 were obtained by reacting Ga³⁺ and Ln³⁺ nitrate salts with the H₃shi ligand. X-ray single crystal unit cell anal. confirmed that all MCs are isostructural. The crystal structure was solved for the Nd³⁺ analog and revealed that Nd³⁺ is centered between 2 [12-MC_Ga^III_N(shi)-4] MC rings and bound to 8 hydroximate O ions (4 from each ring) in a pseudosquare antiprismatic fashion adopting a pseudo-D_4h symmetry. Pulsed gradient spin echo diffusion ordered ¹H NMR spectroscopy and electrospray ionization mass spectrometry confirmed that the structure of Ln-1 remains intact in MeOH solutions while mass spectrometry suggests that 4 OH^– bridges are exchanged with MeO^–/CD₃O^–. An exceptional ability of this series of MCs to sensitize the characteristic emission of Ln³⁺ was confirmed with the observation of bright red and green emission signals of Eu-1 and Tb-1, NIR emissions of Yb-1 and Nd-1, and dual-range emissions of Pr-1, Sm-1, Dy-1, Ho-1, Er-1, and Tm-1 in the solid state upon excitation into ligand-centered bands at 340 nm. The luminescence properties of Ln-1 (Ln = Nd³⁺, Sm³⁺, Eu³⁺, Tb³⁺, Dy³⁺, and Yb³⁺) were also studied in MeOH and CD₃OD solutions For Eu-1 and Yb-1 MCs, more extensive analyses of the photophys. properties were performed, which included the determination of radiative lifetimes, intrinsic quantum yields, and sensitization efficiencies. The absolute quantum yields (Q_Ln^L) of Ln-1 in the visible and NIR ranges were determined In the case of Sm-1, the values of Q_Ln^L in MeOH and CD₃OD solutions are exceptionally high, i.e., 10.1(5) and 83(1)%. Values obtained for Yb-1, i.e., 0.78(4)% in MeOH and 8.4(1)% in CD₃OD, are among the highest ones reported today for Yb³⁺ complexes formed with nondeuterated and nonhalogenated ligands. The experimental procedure involved many compounds, such as N,2-Dihydroxybenzamide (cas: 89-73-6) .

N,2-Dihydroxybenzamide(cas: 89-73-6) can be used:To prepare phenylboronic acid-based bioconjugates for chromatographic applications;As a ligand to synthesize Fe(III), Cu(II), Ni(II) and Zn(II) complexes.Recommanded Product: N,2-Dihydroxybenzamide

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

Nagahori, Hirohisa;Suzuki, Noriyuki;Le Coz, Florian;Omori, Takashi;Saito, Koichi published 《Prediction of in vivo developmental toxicity by combination of Hand1-Luc embryonic stem cell test and metabolic stability test with clarification of metabolically inapplicable candidates》. The research results were published in《Toxicology Letters》 in 2016.Recommanded Product: 329-89-5 The article conveys some information:

Hand1-Luc Embryonic Stem Cell Test (Hand1-Luc EST) is a promising alternative method for evaluation of developmental toxicity. However, the problems of predictivity have remained due to appropriateness of the solubility, metabolic system, and prediction model. Therefore, we assessed the usefulness of rat liver S9 metabolic stability test using LC-MS/MS to develop new prediction model. A total of 71 chems. were analyzed by measuring cytotoxicity and differentiation toxicity, and highly reproducible (CV = 20%) results were obtained. The first prediction model was developed by discriminant anal. performed on a full dataset using Hand1-Luc EST, and 66.2% of the chems. were correctly classified by the cross-validated classification. A second model was developed with addnl. descriptors obtained from the metabolic stability test to calculate hepatic availability, and an accuracy of 83.3% was obtained with applicability domain of 50.7% (=36/71) after exclusion of 22 metabolically inapplicable candidates, which potentially have a metabolic activation property. A step-wise prediction scheme with combination of Hand1-Luc EST and metabolic stability test was therefore proposed. The current results provide a promising in vitro test method for accurately predicting in vivo developmental toxicity. And 6-Aminonicotinamide (cas: 329-89-5) was used in the research process.

6-Aminonicotinamide (cas:329-89-5)Recommanded Product: 329-89-5 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

Application of 89-73-6In 2021, Chen, Tomer;Cohen, Dekel;Itkin, Maxim;Malitsky, Sergey;Fluhr, Robert published 《Lipoxygenase functions in ¹O₂ production during root responses to osmotic stress》. 《Plant Physiology》published the findings. The article contains the following contents:

Drought induces osmotic stress in roots, a condition simulated by the application of high-mol.-weight polyethylene glycol. Osmotic stress results in the reduction of Arabidopsis thaliana root growth and production of 1O2 from an unknown non-photosynthetic source. Reduced root growth can be alleviated by application of the 1O2 scavenger histidine (HIS). Here, we examined the possibility that 1O2 production involves Russell reactions occurring among the enzymic products of lipoxygenases (LOXs), the fatty acid hydroperoxides. LOX activity was measured for purified soybean (Glycine max) LOX1 and in crude Arabidopsis root extracts using linoleic acid as substrate. Formation of the 13(S)-Hydroperoxy-9(Z),11(E)-octadecadienoic acid product was inhibited by salicylhdroxamic acid, which is a LOX inhibitor, but not by HIS, whereas 1O2 production was inhibited by both. D2O, which specifically extends the half-life of 1O2, augmented the LOX-dependent generation of 1O2, as expected from a Russell-type reaction. The addition of linoleic acid to roots stimulated 1O2 production and inhibited growth, suggesting that the availability of LOX substrate is a rate-limiting step. Indeed, water stress rapidly increased linoleic and linolenic acids by 2.5-fold in roots. Mutants with root-specific microRNA repression of LOXs showed downregulation of LOX protein and activity. The lines with downregulated LOX displayed significantly less 1O2 formation, improved root growth in osmotic stress, and an altered transcriptome response compared with wild type. The results show that LOXs can serve as an enzymic source of dark 1O2 during osmotic stress and demonstrate a role for 1O2 in defining the physiol. response. To complete the study, the researchers used N,2-Dihydroxybenzamide (cas: 89-73-6) .

N,2-Dihydroxybenzamide(cas: 89-73-6) can be used:To prepare phenylboronic acid-based bioconjugates for chromatographic applications;As a ligand to synthesize Fe(III), Cu(II), Ni(II) and Zn(II) complexes.Application of 89-73-6

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

Duan, Y.;Chen, J.;Pang, Z.;Ye, X.;Zhang, C.;Hu, H.;Xie, J. published 《Antifungal mechanism of Streptomyces ma. FS-4 on fusarium wilt of banana》 in 2021. The article was appeared in 《Journal of Applied Microbiology》. They have made some progress in their research.Recommanded Product: cis-13-Docosenamide The article mentions the following:

In this study, antifungal mechanism of Streptomyces ma. FS-4 on fusarium wilt of banana was investigated. Methods and Results : The physiol. strain of banana fusarium pathogen Fusarium oxysporum f. sp. cubense Race 4 (FOC.4) was used as the target fungus, and the antifungal mechanism of the crude extract of Streptomyces ma. FS-4 was investigated. Eighteen different compounds identified by gas chromatog.-mass spectrometry were composed of aldehydes, Me, hydrocarbons, amides, esters and acids. FS-4 significantly inhibited the spore germination of the target fungi, with an EC50 of 22·78 μg ml-1. After treatment with 100 μg ml-1 FS-4 crude extract, the N-acetylglucosamine content in the mycelium increased 1·95-fold. However, the extract had no significant effect on β-1,3-glucanase. At the FS-4 crude extract dose of 100 μg ml-1, the total sugar and protein contents decreased by 28·6 and 29·1% resp., and the fat content was 41·3%. FS-4 significantly inhibited the activity of the mitochondrial complex III of Foc4, which was reduced by 52·45%. Moreover FS-4 reduced the activity of succinate dehydrogenase, a key enzyme in the Krebs cycle, by 60·2%. However, FS-4 had no significant effect on malate dehydrogenase. The membrane potential on the mitochondrial inner membrane was significantly reduced at the test concentration of 100 μg ml-1. ROS gradually accumulated in the Foc4 hypha, and the burst was 3·97 times higher than the control. To complete the study, the researchers used cis-13-Docosenamide (cas: 112-84-5) .

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.Recommanded Product: cis-13-Docosenamide

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

Zhou, Yanhong;Xia, Xiaojian;Yu, Gaobo;Wang, Jitao;Wu, Jingxue;Wang, Mengmeng;Yang, Youxin;Shi, Kai;Yu, Yunlong;Chen, Zhixiang;Gan, Jay;Yu, Jingquan published 《Brassinosteroids play a critical role in the regulation of pesticide metabolism in crop plants》 in 2015. The article was appeared in 《Scientific Reports》. They have made some progress in their research.Recommanded Product: 329-89-5 The article mentions the following:

Pesticide residues in agricultural produce pose a threat to human health worldwide. Although the detoxification mechanisms for xenobiotics have been extensively studied in mammalian cells, information about the regulation network in plants remains elusive. Here we show that brassinosteroids (BRs), a class of natural plant hormones, decreased residues of common organophosphorus, organochlorine and carbamate pesticides by 30-70% on tomato, rice, tea, broccoli, cucumber, strawberry, and other plants when treated externally. Genome-wide microarray anal. showed that fungicide chlorothalonil (CHT) and BR co-upregulated 301 genes, including a set of detoxifying genes encoding cytochrome P 450, oxidoreductase, hydrolase and transferase in tomato plants. The level of BRs was closely related to the respiratory burst oxidase 1 (RBOH1)-encoded NADPH oxides-dependent H₂O₂ production, glutathione biosynthesis and the redox homeostasis, and the activity of glutathione S-transferase (GST). Gene silencing treatments showed that BRs decreased pesticide residues in plants likely by promoting their metabolism through a signaling pathway involving BRs-induced H₂O₂ production and cellular redox change. Our study provided a novel approach for minimizing pesticide residues in crops by exploiting plants’ own detoxification mechanisms. The experimental procedure involved many compounds, such as 6-Aminonicotinamide (cas: 329-89-5) .

6-Aminonicotinamide (cas:329-89-5)Recommanded Product: 329-89-5 induces apoptosis in tumor cells. It is clinically used in disseminated neoplastic disease. It also acts as 6-phosphogluconate dehydrogenase inhibitor. It aids in the treatment of psoriasis. It is used as cancer chemotherapeutic drug in animals.

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