Category: amides-buliding-blocks

Guo, Zhen;Li, Xiu-qin;Gao, Fang-yuan;Zhang, Qing-he;Li, Hong-mei published 《Determination of capsaicinoids in edible oil by liquid chromatography-isotope dilution mass spectrometry》. The research results were published in《Huaxue Shiji》 in 2016.Name: N-Vanillylnonanamide The article conveys some information:

A method was developed on determination of capsaicinoids (capsaicin, dihydrocapsaicin, nordihydrocapsaicin and n-vanillvlnonanamide) in edible oil by liquid chromatog.-isotope dilution mass spectrometry (LC-IDMS). The sample was firstly extracted with sodium hydroxide solution, and then the extract was cleaned-up by auto solid phase extraction (SPE) before the LC-IDMS anal. The limit of detection (LOD, S/N>3) for capsaicinoids was 0.015 μg/kg, and the recoveries of the 4 kinds of capsaicinoids in edible oil samples were 96.2%-105% with the RSDs ranging 0.5%-3.8% (n = 6). Edible oils and illegal edible oils were both analyzed using this method, and significant differences were observed The results showed that there were no capsaicinoids in most kinds of edible oils. Peanut oil contained little capsaicinoids ranging 0-1.8 μg/kg which might come from peanut. The content of capsaicinoids was above 600 μg/kg in most illegal cooking oils. This method can be used as one of identification methods on illegal cooking oil. The experimental procedure involved many compounds, such as N-Vanillylnonanamide (cas: 2444-46-4) .

N-Vanillylnonanamide(cas:2444-46-4) has antifouling properties.Name: N-Vanillylnonanamide 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

COA of Formula: C17H27NO3《Coptisine: A natural plant inhibitor of ruminal bacterial urease screened by molecular docking》 was published in 2022. The authors were He, Yue;Zhang, Xiaoyin;Li, Ming;Zheng, Nan;Zhao, Shengguo;Wang, Jiaqi, and the article was included in《Science of the Total Environment》. The author mentioned the following in the article:

Inhibition of ruminal bacterial urease activity could slow down the decomposition of urea to ammonia, which would lead to a decrease in urea synthesis in the liver and urea-N emission in the urine. In order to find a rumen bacterial urease specific inhibitor that is environmentally friendly, we used the homol. model of rumen bacterial urease as the target to screen natural compounds from plants by mol. docking. The screening results showed that coptisine had the most potential to inhibit the activity of rumen bacterial urease with an IC50 of 2.45μM, which was superior to the traditional inhibitor acetohydroxamic acid. The enzyme kinetics results indicated coptisine was mixed type inhibitor of rumen bacterial urease with a Ki value of 0.68μM. Coptisine significantly decreased the release of NH3 and decomposition of urea and improved microbial fermentation in a rumen fermentation system in vitro. Thiol-containing compounds or boric acid significantly decreased the inhibitory capacity of coptisine toward rumen bacterial urease, which indicated that coptisine could interact with both the urease active center Ni and amino acid residues possessing sulfhydryl groups in the flap area. The mol. docking results showed that coptisine acted as the metal acceptor for one nickel ion in the active site, and formed hydrogen bonds with the amino acid residues His320 and His362, which were located in the active site and flap region, resp. These findings emphasized the potential role of coptisine in reducing nitrogen emissions that originate from ruminants by regulating rumen bacterial urease activity. And N-Vanillylnonanamide (cas: 2444-46-4) was used in the research process.

N-Vanillylnonanamide(cas:2444-46-4) has antifouling properties.COA of Formula: 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

Chen, Xiaoyi;Xu, Zhijie;Zhu, Zhijian;Chen, Anqi;Fu, Guanghou;Wang, Yimin;Pan, Hao;Jin, Baiye published 《Modulation of G6PD affects bladder cancer via ROS accumulation and the AKT pathway in vitro》. The research results were published in《International Journal of Oncology》 in 2018.Reference of 6-Aminonicotinamide The article conveys some information:

Glucose-6-phosphate dehydrogenase (G6PD) is a rate-limiting enzyme of the pentose phosphate pathway. Multiple studies have previously revealed that elevated G6PD levels promote cancer progression in numerous tumor types; however, the underlying mechanism remains unclear. In the present study, it was demonstrated that high G6PD expression is a poor prognostic factor in bladder cancer, and the levels of G6PD expression increase with increasing tumor stage. Patients with bladder cancer with high G6PD expression had worse survival rates compared with those with lower G6PD expression in resected tumors. In vitro experiments revealed that knockdown of G6PD suppressed cell viability and growth in Cell Counting Kit-8 and colony formation assays, and increased apoptosis in bladder cancer cell lines compared with normal cells. Further experiments indicated that the weakening of the survival ability in G6PD-knockdown bladder cancer cells may be explained by intracellular reactive oxygen species accumulation and protein kinase B pathway suppression. Furthermore, it was addnl. revealed that 6-aminonicotinamide (6-AN), a competitive G6PD inhibitor, may be a potential therapy for bladder cancer, particularly in cases with high G6PD expression, and that the combination of cisplatin and 6-AN may optimize the clin. dose or minimize the side effects of cisplatin. The experimental procedure involved many compounds, such as 6-Aminonicotinamide (cas: 329-89-5) .

6-Aminonicotinamide (cas:329-89-5)Reference of 6-Aminonicotinamide is a monocarboxylic acid amide resulting from the formal condensation of the carboxy group of 6-aminonicotinic acid with ammonia. An inhibitor of the NADP(+)-dependent enzyme,6-phosphogluconate dehydrogenase, it interferes with glycolysis.

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

Vegas-Suarez, Sergio;Aristieta, Asier;Requejo, Catalina;Bengoetxea, Harkaitz;Lafuente, Jose Vicente;Miguelez, Cristina;Ugedo, Luisa published 《The effect of 5-HT_1A receptor agonists on the entopeduncular nucleus is modified in 6-hydroxydopamine-lesioned rats》. The research results were published in《British Journal of Pharmacology》 in 2021.Recommanded Product: N,2-Dihydroxybenzamide The article conveys some information:

L-DOPA prolonged treatment leads to disabling motor complications as dyskinesia that could be decreased by drugs acting on 5-HT1A receptors. Since the internal segment of the globus pallidus, homologous to the entopeduncular nucleus in rodents, seems to be involved in the etiopathol. of L-DOPA-induced dyskinesia, we investigated whether the entopeduncular nucleus is modulated by the 5-HT_1A receptor partial and full agonists, buspirone, and 8-hydroxy-2-(di-n-propylamino)-tetralin (8-OH-DPAT) in control and 6-hydroxydopamine (6-OHDA)-lesioned rats with or without long-term L-DOPA treatment. Extracellular single-unit electrocorticogram and local field potential recordings under anesthesia, immunostaining assays and optogenetic manipulation coupled to electrophysiol. recordings were performed. Systemic buspirone reduced the entopeduncular nucleus firing rate in the sham animals and burst activity in the 6-OHDA-lesioned rats (with or without L-DOPA treatment), while local administration reduced entopeduncular nucleus activity in all the groups, regardless of DA integrity. Systemic 8-OH-DPAT also induced inhibitory effects only in the sham animals. Effects triggered by buspirone and 8-OH-DPAT were reversed by the 5-HT_1A receptor antagonist, WAY-100635. Neither buspirone nor 8-OH-DPAT modified the low-frequency oscillatory activity in the entopeduncular nucleus or its synchronization with the motor cortex. Buspirone did not alter the response induced by subthalamic nucleus opto-stimulation in the entopeduncular nucleus. Systemic 5-HT_1A receptor activation elicits different effects on the electrophysiol. properties of the entopeduncular nucleus depending on the integrity of the nigrostriatal pathway and it does not alter the relationship between subthalamic nucleus and entopeduncular nucleus neuron activity. To complete the study, the researchers used N,2-Dihydroxybenzamide (cas: 89-73-6) .

N,2-Dihydroxybenzamide(cas: 89-73-6) is a hydroxamic acid that inhibits the activity of p-hydroxybenzoic acid (PHBA) reductase, an enzyme involved in the conversion of PHBA to benzoic acid. Recommanded Product: N,2-Dihydroxybenzamide The compound has been shown to inhibit mitochondrial membrane potential and mitochondrial functions, leading to cell death.

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

SDS of cas: 2444-46-4《Voltammetric determination of capsaicin using CeO₂-surfactant/SWNT-modified electrode》 was published in 2020. The authors were Ziyatdinova, Guzel;Ziganshina, Endzhe;Shamsevalieva, Aliya;Budnikov, Herman, and the article was included in《Arabian Journal of Chemistry》. The author mentioned the following in the article:

Glassy carbon electrodes (GCE) modified with carboxylated single-walled carbon nanotubes (SWNT-COOH) and CeO₂-surfactants dispersions are developed for the capsaicin quantification. The effect of cationic cetylpyridinium bromide (CPB), anionic sodium dodecylsulfate (SDS) and nonionic Triton X100 as co-modifiers are tested. CeO₂-CPB/SWNT-COOH/GCE provides 2.8- and 1.9-fold increase of capsaicin oxidation currents in comparison to bare GCE and SWNT-COOH/GCE, resp., confirming the synergetic effect of the modifiers. SEM (SEM) data confirm successful immobilization of the nanomaterials on the electrode surface leading to the significant changes in its morphol. The parameters of capsaicin electrooxidation are found. Differential pulse mode is applied for the capsaicin determination The pulse parameters are optimized. The linear dynamic ranges of 0.10-7.5 and 7.5-500μM of capsaicin with the limits of detection and quantification of 28 and 92 nM resp. confirm the high sensitivity of the method developed. The selectivity of the electrode toward capsaicinoids is proved. The method was applied for the total capsaicinoids quantification in real samples (red hot pepper spices and tinctures of Capsicum annuum L.). A good agreement with the UV-spectroscopic data is obtained.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.SDS of cas: 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

Vega de Luna, Felix;Cordoba-Granados, Juan Jose;Dang, Kieu-Van;Roberty, Stephane;Cardol, Pierre published 《In vivo assessment of mitochondrial respiratory alternative oxidase activity and cyclic electron flow around photosystem I on small coral fragments》 in 2020. The article was appeared in 《Scientific Reports》. They have made some progress in their research.Name: N,2-Dihydroxybenzamide The article mentions the following:

The mutualistic relationship existing between scleractinian corals and their photosynthetic endosymbionts involves a complex integration of the metabolic pathways within the holobiont. Respiration and photosynthesis are the most important of these processes and although they have been extensively studied, our understanding of their interactions and regulatory mechanisms is still limited. In this work we performed chlorophyll-a fluorescence, oxygen exchange and time-resolved absorption spectroscopy measurements on small and thin fragments (0.3 cm2) of the coral Stylophora pistillata. We showed that the capacity of mitochondrial alternative oxidase accounted for ca. 25% of total coral respiration, and that the high-light dependent oxygen uptake, commonly present in isolated Symbiodiniaceae, was negligible. The ratio between photosystem I (PSI) and photosystem II (PSII) active centers as well as their resp. electron transport rates, indicated that PSI cyclic electron flow occurred in high light in S. pistillata and in some branching and lamellar coral species freshly collected in the field. Altogether, these results show the potential of applying advanced biophys. and spectroscopic methods on small coral fragments to understand the complex mechanisms of coral photosynthesis and respiration and their responses to environmental changes. The experimental procedure involved many compounds, such as 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.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

Li, Hugang;Cao, Maojiong;Zhang, Yuanhui;Liu, Zhidan published 《Hydrothermal liquefaction accelerates the toxicity and solubility of arsenic in biowaste》 in 2021. The article was appeared in 《Journal of Hazardous Materials》. They have made some progress in their research.HPLC of Formula: 112-84-5 The article mentions the following:

Arsenic (As) is one of notorious metalloids due to its high toxicity to human beings and ecol. system. Understanding its fate and speciation transformation mechanism during hydrothermal liquefaction (HTL) of microalgae is of crucial importance for the application of its HTL products. 80.0-96.7% of As in raw microalgae was migrated into the liquid phase (aqueous phase and biocrude oil) with the increase of reaction severity from 0.108 to 0.517. HPLC-ICPMS reveals that 67% of the As in microalgae accounted for As(V) with a concentration of 68.4 mg/kg. The other fractions in microalgae were primarily As(III) with a concentration of 36.3 mg/kg. Model compounds experiments illustrate that over 30% of the As(V) in feedstocks was unexpectedly converted into more soluble and toxic As (III). Hydrochar containing O-containing groups (e.g., aliphatic C-OH) was probably contribute to the reduction transformation of As(V) to higher toxic As(III). Meantime, the aqueous phase facilitated the reduction reaction via providing a reducing environment and serving as hydrogen donator. This study firstly revealed the speciation transformation of As(V) to As(III) during HTL of wastewater cultivated microalgae. 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.HPLC of Formula: 112-84-5 It is commonly used as a slip additive in the plastic manufacturing industry.

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

Chuan, Libo;Huang, Xin;Fan, Chuming;Wen, Shiyuan;Yang, Xiaohua;Wang, Jingrong;Ren, Jingyu;Ru, Jin;Ding, Li published 《Metformin ameliorates brain damage caused by cardiopulmonary resuscitation via targeting endoplasmic reticulum stress-related proteins GRP78 and XBP1》. The research results were published in《European Journal of Pharmacology》 in 2021.Synthetic Route of C7H7NO3 The article conveys some information:

Cerebral damage after cardiac arrest (CA) and cardiopulmonary resuscitation (CPR) is a primary cause of death. Endoplasmic reticulum stress (ERS) is very important during these situations. This study aimed to explore the role of metformin in protecting brain endoplasmic reticulum post CA/CPR. Male SD rats (n = 132) were treated with 6-min CA-posted asphyxia and sham surgery. Before CA/CPR, metformin (200 mg/kg/day) or a vehicle (0.9% saline) were administered randomly for two weeks. The neurol. deficit scores were assessed 24 h, 48 h, 72 h, and 7 days after CA/CPR, and the rat brains were analyzed by Western blotting and qRT-PCR. Apoptosis was detected by the TUNEL assay according to the mitochondrial membrane potential (MMP). Oxidative stress and ERS-related protein expression were also investigated. The Western blotting and qRT-PCR results revealed that the resuscitated animals had time-dependent elevated GRP78 and XBP1 levels compared with the sham operative rats. Moreover, our results showed that the rats treated with metformin had increased neurol. deficit scores (NDS), an improved seven-day survival rate, decreased cell apoptosis within the hippocampus CA1 area, and less oxidative stress compared with the CA/CPR group. Furthermore, metformin inhibited the mRNA and protein expressions of glucose-regulated protein 78 (GRP78) and X-box binding protein 1 (XBP1) in the CA/CPR rat model. We confirmed that CA/CPR can induce ERS-related apoptosis and oxidative stress in the brain; moreover, inhibiting ERS-related proteins GRP78 and XBP1 with metformin might attenuate cerebral injury post CA/CPR. 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.Synthetic Route of C7H7NO3

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

Quality Control of 6-AminonicotinamideIn 2016, Forte, Nicola;Medrihan, Lucian;Cappetti, Beatrice;Baldelli, Pietro;Benfenati, Fabio published 《2-Deoxy-D-glucose enhances tonic inhibition through the neurosteroid-mediated activation of extrasynaptic GABA_A receptors》. 《Epilepsia》published the findings. The article contains the following contents:

Summary : Objective : The inhibition of glycolysis exerts potent antiseizure effects, as demonstrated by the efficacy of ketogenic and low-glucose/nonketogenic diets in the treatment of drug-resistant epilepsy. ATP-sensitive potassium (K_ATP) channels have been initially identified as the main determinant of the reduction of neuronal hyperexcitability. However, a plethora of other mechanisms have been proposed. Herein, we report the ability of 2-deoxy-D-glucose (2-DG), a glucose analog that inhibits glycolytic enzymes, of potentiating γ-aminobutyric acid (GABA)ergic tonic inhibition via neurosteroid-mediated activation of extrasynaptic GABA_A receptors. Methods : Acute effects of 2-DG on the ATP-sensitive potassium currents, GABAergic tonic inhibition, firing activity, and interictal events were assessed in hippocampal slices by whole-cell patch-clamp and local field potential recordings of dentate gyrus granule cells. Results : Acute application of 2-DG activates two distinct outward conductances: a K_ATP channel-mediated current and a bicuculline-sensitive tonic current. The effect of 2-DG on such GABAergic tonic currents was fully prevented by either finasteride or PK11195, which are specific inhibitors of the neurosteroidogenesis pathway acting via different mechanisms. Moreover, the oxidized form of vitamin C, dehydroascorbic acid, known for its ability to induce neurosteroidogenesis, also activated a bicuculline-sensitive tonic current in a manner indistinguishable from that of 2-DG. Finally, we found that the enhancement of K_ATP current by 2-DG primarily regulates intrinsic firing rate of granule cells, whereas the increase of the GABAergic tonic current plays a key role in reducing the frequency of interictal events evoked by treatment of hippocampal slices with the convulsive agent 4-aminopyridine. Significance : We demonstrated, for the first time, that 2-DG potentiates the extrasynaptic tonic GABAergic current through activation of neurosteroidogenesis. Such tonic inhibition represents the main conductance responsible for the antiseizure action of this glycolytic inhibitor.6-Aminonicotinamide (cas: 329-89-5) were involved in the experimental procedure.

6-Aminonicotinamide (cas:329-89-5)Quality Control of 6-Aminonicotinamide is a monocarboxylic acid amide resulting from the formal condensation of the carboxy group of 6-aminonicotinic acid with ammonia. An inhibitor of the NADP(+)-dependent enzyme,6-phosphogluconate dehydrogenase, it interferes with glycolysis.

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

Li, Zhenbiao;Wei, Yingying;Cao, Zidan;Jiang, Shu;Chen, Yi;Shao, Xingfeng published 《The Jasmonic Acid Signaling Pathway is Associated with Terpinen-4-ol-Induced Disease Resistance against Botrytis cinerea in Strawberry Fruit》 in 2021. The article was appeared in 《Journal of Agricultural and Food Chemistry》. They have made some progress in their research.Recommanded Product: 89-73-6 The article mentions the following:

Terpinen-4-ol, the main component of tea tree oil, markedly increases the disease resistance of postharvest strawberry fruit. To understand the mechanism underlying the enhancement of disease resistance, a high-throughput RNA-seq was used to analyze gene transcription in terpinen-4-ol-treated and untreated fruit. The results show that terpinen-4-ol induces the expression of genes in the jasmonic acid (JA) biosynthesis pathway, secondary metabolic pathways such as phenylpropanoid biosynthesis, and pathways involved in plant-pathogen interactions. Terpinen-4-ol treatment reduced disease incidence and lesion diameter in strawberry fruit inoculated with Botrytis cinerea. Terpinen-4-ol treatment enhanced the expression of genes involved in JA synthesis (FaLOX, FaAOC, and FaOPR3) and signaling (FaCOI1), as well as genes related to disease defense (FaPAL, FaCHI, and FaGLU). In contrast, treatment with the JA biosynthesis inhibitor salicylhydroxamic acid (SHAM) accelerated disease development and inhibited the induction of gene expressions by terpinen-4-ol. We conclude that the JA pathway participates in the induction of disease resistance by terpinen-4-ol in strawberry fruit. More generally, the results illuminate the mechanisms by which disease resistance is enhanced by essential oils. And N,2-Dihydroxybenzamide (cas: 89-73-6) was used in the research process.

N,2-Dihydroxybenzamide(cas: 89-73-6) is a hydroxamic acid that inhibits the activity of p-hydroxybenzoic acid (PHBA) reductase, an enzyme involved in the conversion of PHBA to benzoic acid. Recommanded Product: 89-73-6 The compound has been shown to inhibit mitochondrial membrane potential and mitochondrial functions, leading to cell death.

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