Category: amides-buliding-blocks

On April 30, 2020, Waghorne, W. Earle published an article.Category: amides-buliding-blocks The title of the article was A Study of Kamlet-Taft 尾 and 蟺* Scales of Solvent Basicity and Polarity/Polarizability Using Computationally Derived Molecular Properties. And the article contained the following:

The Kamlet and Taft solvent basicity parameter, 尾, and solvent polarity/polarizability parameter, 蟺*, were analyzed in terms of properties of the solvent mols. derived from computational chem. The anal. of 尾, using a larger data set, confirms earlier conclusions that, for aprotic solvents, the basicity is determined by the partial charge on the most neg. atom of the solvent mol. and by the energy of the highest energy MO associated with the donor site. For alcs. and nitrogen bases containing N-H moieties, the 尾 values deviate systematically from those for the non-hydrogen bonding solvents. Anal. of the polarity/polarizability parameter, 蟺*, shows that it depends directly on the dipole moment, and quadrupolar amplitude of the solvent and on the energy of the HOMO, but decreases linearly with increasing solvent polarizability. The experimental process involved the reaction of N,N-Diethylacetamide(cas: 685-91-6).Category: amides-buliding-blocks

The Article related to solvent basicity polarity polarizability molicualr property, Placeholder for records without volume info and other aspects.Category: amides-buliding-blocks

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Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On March 15, 2020, Chen, Xinfei; Ma, Xiaoqian; Zeng, Xianghao; Zheng, Chupeng; Lu, Xiaoluan published an article.Quality Control of N,N-Diethylacetamide The title of the article was Ethanol addition during aqueous phase recirculation for further improving bio-oil yield and quality. And the article contained the following:

The increase of nitrogen content caused by the re-polymerization of nitrogenous compounds remains an important challenge during aqueous phase recirculation in the water solvent. In this work, aqueous phase recirculation was conducted in the ethanol-water solvent to evaluate the feasibility of ethanol addition in inhabiting the re-polymerization of nitrogenous compounds The present study provides a comprehensive comparison of yield and quality between bio-oils derived from aqueous phase recirculation in the water solvent and ethanol-water solvent. The results showed that the addition of ethanol in aqueous phase recirculation displayed higher promotion in bio-oil yield (7%) compared with water solvent (3.55%). The energy recovery efficiency of bio-oil from ethanol-water solvent reached 87.43% after recirculation for three times, while that from the water solvent was 74.61%. The elemental anal. and gas chromatog.-mass spectrometry anal. indicated that ethanol addition could inhibit the re-polymerization of nitrogenous compounds and thus decrease the nitrogen content in bio-oil. This resulted in lower NO and HCN emission peaks during the combustion process. Besides, the addition of ethanol increased the content of light mol. weight fractions and decreased the coke formation, which contributed to complete combustion and resulted in lower CO emission peaks. Overall, this work provides a feasible way for further improving the bio-oil yield and fuel quality through ethanol addition in solvent during aqueous phase recirculation. The experimental process involved the reaction of N,N-Diethylacetamide(cas: 685-91-6).Quality Control of N,N-Diethylacetamide

The Article related to ethanol bio oil yield quality aqueous phase recirculation, Placeholder for records without volume info and other aspects.Quality Control of N,N-Diethylacetamide

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

On April 30, 2022, Kohn, Elkana; Barchel, Dana; Golik, Ahuva; Lougassi, Marc; Wainstock, Tamar; Berkovitch, Matitiahu; Schwartsburd, Frieda published an article.Related Products of 27115-50-0 The title of the article was Analysis of 10 urinary BTEX metabolites using LC-MS/MS. And the article contained the following:

Benzene, toluene, ethylbenzene, and xylene (BTEX) are a group of volatile organic compounds that are ubiquitous in the environment due to numerous anthropogenic sources. Exposure to BTEX poses a health hazard by increasing the risk for damage to multiple organs, neurocognitive impairment and birth defects. Urinary BTEX metabolites are useful biomarkers for the evaluation of BTEX exposure, because of the ease of sampling and their longer physiol. half-lives compared with parent compounds A method that utilizes LC-MS/MS was developed and validated for simultaneously monitoring of 10 urinary BTEX metabolites. During the sample preparation an aliquot of urine was diluted with an equal volume of 1% formic acid; internal standard solution was added, and then the sample was centrifuged and analyzed. The analytes were separated on the Kinetex-F5 column by applying a linear gradient, consisting of 0.1% formic acid and methanol. The method was validated according to the FDA Bioanal. Method Validation Guidance for Industry. The mean method鈥瞫 accuracies of the spiked matrix were 81-122%; the inter-day precision ranged from 4 to 20%; the limits of quantitation were 0.5-2 渭g/L. The method was used for the evaluation of baseline levels of urinary BTEX metabolites in 87 firefighters. The experimental process involved the reaction of 2-(4-Methylbenzamido)acetic acid(cas: 27115-50-0).Related Products of 27115-50-0

The Article related to benzene toluene ethylbenzene xylene urine metabolite lcmsms analysis, btex, lc-ms/ms, metabolites, urine, validation, Placeholder for records without volume info and other aspects.Related Products of 27115-50-0

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

On April 30, 2022, Hu, Jingrun; Qi, Dianqing; Chen, Qian; Sun, Weiling published an article.Product Details of 144-80-9 The title of the article was Comparison and prioritization of antibiotics in a reservoir and its inflow rivers of Beijing, China. And the article contained the following:

The occurrence of antibiotics in drinking water resources, like reservoirs, is of considerable concern due to their potential risks to ecosystem, human health, and antimicrobial resistance development. Here, we quantified 83 antibiotics in water and sediments of wet and dry seasons from the Miyun reservoir and its inflow rivers in Beijing, China. Twenty-four antibiotics were detected in water with concentrations of ND-11.6 ng/L and 19 antibiotics were observed in sediments with concentrations of ND-6.50 ng/g. Sulfonamides (SAs) were the dominated antibiotics in water in two seasons. SAs and quinolones (QNs) in wet season and macrolides (MLs) and QNs in dry season predominated in sediments. The reservoir and inflow rivers showed significant differences in antibiotic concentrations and compositions in water and sediments. As an important input source of reservoir, the river water showed significantly higher total antibiotic concentrations than those in the reservoir. In contrast, the reservoir sediments are the sink of antibiotics, and had higher total antibiotic concentrations compared with rivers. A prioritization approach based on the overall risk scores and detection frequencies of antibiotics was developed, and 3 (sulfaguanidine, anhydroerythromycin, and sulfamethoxazole) and 5 (doxycycline, sulfadiazine, clarithromycin, roxithromycin, and flumequine) antibiotics with high and moderate priority, resp., were screened. The study provides a comprehensive insight of antibiotics in the Miyun Reservoir and its inflow rivers, and is significant for future monitoring and pollution mitigation of antibiotics. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Product Details of 144-80-9

The Article related to antibiotic inflow river pollution beijing china, antibiotics, comparison, prioritization, reservoir, inflow rivers, Placeholder for records without volume info and other aspects.Product Details of 144-80-9

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

Yuan, Ruiying; Dongzhi, Zhuoma; Guo, Wei; Zhen, Pu; Liu, Zhiming; Huang, Shan; Li, Bin; Yu, Jianqing published an article in , the title of the article was Hepatoprotective effect of Sophora moorcroftiana (Benth.) Benth.Ex baker seeds in vivo and in vitro.HPLC of Formula: 456-12-2 And the article contains the following content:

The leguminosae of Sophora moorcroftiana (Benth.) Benth.ex Baker is a drought-resistant endemic Sophora shrub species from the Qinghai-Tibet Plateau, and its seeds have hepatoprotective effects. To study the effect of S. moorcroftiana seeds on liver injury and the mol. mechanism underlying the beneficial effects, liquid chromatog.-mass spectrometry was used to detect the main active components in the ethanol extract of S. moorcroftiana seeds (SM). Male mice were divided into six groups (n = 8): normal control (NC), CCl4, SM (50, 100, 200 mg/kg), and di-Me di-Ph bicarboxylate (150 mg/kg) groups. Mice were treated as indicated (once/day, orally) for 14 days, and CCl4 (2 mL/kg) was administered i.p. The serum and liver of mice were used for biochem. assays. To explore the underlying mechanism, HepG2 cells were treated with SM, stimulated with tert-Bu hydroperoxide (t-BHP, 50 渭M), and analyzed by Western blotting. The major active compounds of SM were alkaloids including 22 compounds Serum alanine transaminase (ALT), aspartate transaminase (AST), and alk. phosphatase (ALP) decreased in the SM (200 mg/kg) group. SM can activate the expression of pregnane X receptor (PXR) and downstream mols. cytochrome P 4503A11 enzyme (CYP3A11), UDP glucuronosyltransferase 1 family polypeptide A 1 (UGT1A1), and inhibit the multidrug resistance protein 2 (MRP2). In addition, SM improved cell viability in t-BHP-induced HepG2 cells (64% to 83%) and decreased the activation of the mitogen-activated protein kinase (MAPK) pathway. The main compounds in SM were alkaloids. SM showed hepatoprotective effects possibly mediated by the suppression of oxidative stress through the MAPK pathway. The experimental process involved the reaction of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide(cas: 456-12-2).HPLC of Formula: 456-12-2

The Article related to sophora moorcroftiana baker seed hepatoprotective effect, hepg2, liver injury, mapk, pxr, oxidative stress, Placeholder for records without volume info and other aspects.HPLC of Formula: 456-12-2

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

On August 5, 2022, Li, Qinlan; Guo, Qian; Wang, Shuyi; Wan, Shanhe; Li, Zhonghuang; Zhang, Jiajie; Wu, Xiaoyun published an article.Application of 16230-24-3 The title of the article was Design and synthesis of proteolysis targeting chimeras (PROTACs) as an EGFR degrader based on CO-1686. And the article contained the following:

Epidermal growth factor receptor (EGFR) inhibitors represent the first-line treatment of non-small-cell lung cancer (NSCLC). However, the emergence of acquired drug resistance and side effects largely encumbered their application in clinic. The emerging technol. proteolysis targeting chimera (PROTAC) could be an alternative strategy to overcome these problems. Herein, we reported the discovery of EGFRL858R/T790M degraders based on CO-1686. Promising PROTAC 1q could effectively and selectively inhibit the growth of PC-9 (EGFRDel 19) and H1975 (EGFRL858R/T790M) cells, but not that of A549 (EGFRWT) cells. In addition, 1q could time- and dose-dependently induce degradation of EGFRL858R/T790M in H1975 cells with a DC50 value of 355.9 nM, while did not show obvious effect on the EGFRDel 19 and EGFRWT protein. Preliminary mechanism study demonstrated that the protein degradation was mediated through ubiquitin-proteasome system (UPS). Furthermore, 1q could significantly induce the apoptosis of H1975 cells and arrest the cells in G0/G1 phase. These findings demonstrated that compound 1q could be used as initial lead compound for the development of new EGFRL858R/T790M degraders based therapy. The experimental process involved the reaction of N-(3-Aminophenyl)acrylamide(cas: 16230-24-3).Application of 16230-24-3

The Article related to human lung adenocarcinoma nsclc apoptosis protac egfr degrader co1686, co-1686, degrader, egfr, protac, Placeholder for records without volume info and other aspects.Application of 16230-24-3

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

Yan, Ni; Long, Shengxing; Xiong, Kangning; Zhang, Ting published an article in 2022, the title of the article was Antibiotic bioaccumulation in zooplankton from the Yelang Lake Reservoir of Anshun City, Southwest China.Application of 144-80-9 And the article contains the following content:

Antibiotic (蟽sulfonamide, 蟽fluoroquinolone, 蟽tetracycline and 蟽macrolide) contamination in aquatic systems has remained a global concern in recent years. In this study, fourteen antibiotics, sulfadiazine (SDZ), sulphapyridine (SPD), sulfacetamide (SCT), sulfamethoxazole (SMX), sulfamethazine (SMZ), trimethoprim (TMP), ofloxacin (OFX), lomefloxacin (LFX), ciprofloxacin (CFX), norfloxacin (NFX), oxytetracycline (OTC), tetracycline (TC), dehydroerythromycin (ETM-H2O) and roxithromycin (RTM), were analyzed in zooplankton collected from the Yelang Lake Reservoir between May 2016 and Mar. 2017. Our results demonstrated that the antibiotic TC (mean 95.80 ng g-1), OTC (mean 167.0 ng g-1) and RTM (mean 151.80 ng g-1) concentrations were significantly higher in zooplankton than the other antibiotics. TC, OTC and RTM accumulated intensively in zooplankton, and the BAFs of OTC, RTM and TC were significantly higher, with mean BAF values of 78.43, 108.4 and 110.1, resp. Antibiotic concentrations were strongly correlated with zooplankton phytoplankton biomass, OTC, RTM and SMX concentrations in zooplankton were significantly pos. correlated with bacillariophyte biomass, and SDZ and SMZ concentrations in zooplankton were significantly pos. correlated with T. brevifurcatus, T. mongolicus, and D. pulex biomass. SPD with P. tunguidus, C. cornuta, TMP, ETM and OFX with P. tunguidus, C. cornuta, M. leuckarti, C. vicinus vicinus, CFX with D. pulex, LFX with T. brevifurcatus, T. mongolicus, Bosmina longirostris, and D. dubium were significantly pos. correlated. These results show that bioaccumulation or scavenging of antibiotics across trophic levels is a fundamental and complex component of antibiotic cycling in aquatic environments. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Application of 144-80-9

The Article related to antibiotic bioaccumulation zooplankton, yelang lake reservoir anshun city southwest china, Placeholder for records without volume info and other aspects.Application of 144-80-9

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

On May 31, 2022, Konda, Satyanand; Asati, Ankita; Williams, Mike; Mudiam, Mohana Krishna Reddy published an article.Electric Literature of 144-80-9 The title of the article was Development and evaluation of a multi-class analytical method based on solid-phase extraction combined with liquid chromatography-tandem mass spectrometry for the analysis of pharmaceuticals and personal care products in urban wastewater samples. And the article contained the following:

An anal. method has been developed for the quant. evaluation of 64 pharmaceuticals and personal care products in urban wastewater using solid-phase extraction coupled with liquid chromatog.-tandem mass spectrometry. Design of experiments approach was used in the multiparametric optimization of solid-phase extraction method for the anal. of pharmaceuticals and personal care products. The method was found to be linear within the range of 0.01-1 渭g/L with coefficient of determination (R2) ranging from 0.990 to 0.999. The limit of detection and limit of quantification were found to be in the range of 0.002-0.028 and 0.007-0.091 渭g/L, resp. The accuracy was calculated with respect to percent recovery, and it was found to be in the range of 70.0-129% for all the analytes. The intra- and interday precisions were found to be less than 15% relative standard deviation for all the analytes. The developed anal. method was applied to real samples collected from four different sampling sites of Musi River in Hyderabad to evaluate its performance. The method found a wide application for the anal. of urban wastewater samples. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Electric Literature of 144-80-9

The Article related to wastewater analysis pharmaceutical personal care product solid phase extraction, Placeholder for records without volume info and other aspects.Electric Literature of 144-80-9

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