Category: amides-buliding-blocks

On September 30, 2022, Liu, Jing; Deng, Wen-Jing; Ying, Guang-Guo; Tsang, Eric P. K.; Hong, Hua-Chang published an article.HPLC of Formula: 144-80-9 The title of the article was Occurrence and distribution of antibiotics in surface water. And the article contained the following:

The concentrations, distribution, and ecol. risks of 24 typical antibiotics in Hong Kong rivers and seawater were investigated using high-performance liquid chromatog. coupled with electrospray ionization tandem mass spectrometry (UHPLC-EI-MS/MS). The results showed that the select antibiotics were widely distributed in the study area. Among the target antibiotics, the detection rate of tetracyclines (TCs) was 100%, which indicated the widespread use of TCs in Hong Kong. The detection rates of sulfonamides (SAs) (57.1-100%), fluoroquinolones (FQs) (78.6-100%), roxithromycin (RTM) (50%) and novobiocin (NOV) (50%) were all above 50%. Compared with river water (7.9-114.26 ng/L, medium: 27.7 ng/L), concentrations of the most antibiotics in seawater (9.5-32.0 ng/L, medium: 13.3 ng/L) were lower; seawater concentrations were similar to those reported from other coastal cities, such as Guangzhou and Zhuhai in China, which implied that the source of marine antibiotic pollution may be the nearby rivers, and the vastness of the ocean causes environmental dilution of antibiotics. According to the ratio of the measured environmental concentration (MEC) to the predicted no-effect concentration (PNEC), ofloxacin (OFX) (average risk quotient: 1.94E-01) and ciprofloxacin (CFX) (average risk quotient: 3.53E-01) posed medium to high ecol. risk in most places, whereas other antibiotics posed lower risk. In Yuen Long, where there were many livestock farms nearby, the detected concentration of antibiotics was higher, indicating that livestock wastewater may be the major reason for the increase in antibiotic levels in this area. In general, the detected concentration of antibiotics in Hong Kong was lower than that in the United States, Japan, the United Kingdom, and coastal areas of China, but the long-term existence of low concentrations of antibiotics also poses great risks. According to the risk assessment, Hong Kong should pay more attention to the use of FQs (e.g., OFX and CFX) in the future. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).HPLC of Formula: 144-80-9

The Article related to occurrence distribution antibiotics surface water, antibiotics, aquatic environment, ecological risk, uhplc-ms/ms, Water: Analysis and other aspects.HPLC of Formula: 144-80-9

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

On January 15, 2021, Zhang, Ruiling; Kang, Yaru; Zhang, Ruijie; Han, Minwei; Zeng, Weibin; Wang, Yinghui; Yu, Kefu; Yang, Ying published an article.Related Products of 144-80-9 The title of the article was Occurrence, source, and the fate of antibiotics in mariculture ponds near the Maowei Sea, South China: Storm caused the increase of antibiotics usage. And the article contained the following:

Antibiotic residues in mariculture environments have been detected globally, while little information is available about their dynamic levels, source, behavior, and fate during the whole culture process. In this study, the dynamic occurrence, bioaccumulation, source, fate, and human dietary risk of 19 antibiotics were investigated in different breeding stages of mariculture ponds near the Maowei Sea, South China. Fourteen antibiotics, including three sulfonamides (SAs), five fluoroquinolones (FQs), three macrolides (MLs), and two chloramphenicols (CAPs), were detected in the mariculture ponds, with FQs being the most abundant antibiotics. Significant variations of antibiotic concentration occurred during the whole culture process. Severe weather, especially typhoons and rainstorms, resulted in the average highest levels of ∑19antibiotics (mean: 567 ng L-1) in mariculture ponds. The source apportionment estimated for the mariculture ponds showed that direct application was the primary source of antibiotics (91.2%). The antibiotics in mariculture ponds were mainly discharged through aquaculture wastewater (65.8%) and settling particles (33.8%). The estimated annual input of antibiotics into the Maowei Sea was 2.24 times higher through the two main rivers (48.0 kg a-1) than through the mariculture wastewater (24.1 kg a-1). The apparent bioaccumulation factors (ABAFs) confirmed that young and adult tilapia accumulated more sulfamethoxazole (SMX) and norfloxacin (NOX), resp. The result from the estimated daily intakes suggested that the antibiotics in the seafood could not pose a risk to human health by dietary exposure assessment. Big variation of antibiotic concentration occurred during the whole culture process in the mariculture farms, and the storm increased antibiotic application. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Related Products of 144-80-9

The Article related to antibiotics mariculture pond seawater, antibiotics, dietary risk, environmental fate, mariculture ponds, source, Water: Analysis and other aspects.Related Products of 144-80-9

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

Jaydeep, Chauhan; Harshita, Gupta; Komal, Pandey; Viral, Shah; Bhagyashree, Kamble published an article in 2019, the title of the article was Herbosome an approach to deliver Aegle marmelos extract: Formulation, characterization and stability study.Quality Control of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide And the article contains the following content:

Aegle marmelos fruit has tremendous potential to treat the various ailments for instance; diabetes, microbial diseases and many more. Despite, having abundant therapeutic activity poor lipid solubility and gastric instability limits the efficacy of Aegle marmelos extract (AME). With an idea to overcome these hurdles, AME was formulated as Herbosome in this study. The concept of Herbosome is gaining popularity, as it provides a sheet of lipid on the outer part of drug or extract, which helps in the bioavailability enhancement. In the present work, AME was prepared by cold extraction method and percentage yield was found to be 20% weight/weight Here, Marmelosin one of the major phytoconstituent in Aegle marmelos, was used as a marker for standardization of the prepared extract Further, preliminary phytochem. screening and thin layer chromatog. (TLC) was carried out. Whereas, quant. estimation of Marmelosin in AME by High-performance thin layer chromatog. (HPTLC) was conducted. In further steps, pre-formulation parameters (effect of several processes and formulation parameters) were studied and Herbosome loaded AME was formulated by conventional technique i.e. thin film method and soyalecithin were used as phospholipids. Several parameters including, percent entrant efficiency (%EE), particle size, polydispersity index (PDI) and zeta-potential were taken into consideration for the evaluation of AME Herbosome. Later on, followed by, In vitro release of optimized formulation was studied and the formulation was able to release up to 92% even after 12 h. After developing successful AME Herbosome, stability study was performed as per the International Conference on Harmonisation (ICH) guidelines up to the period of a month. Herbosome was found to be stable at room temperature, even between 2-4°C. Henceforth, to confirm the efficacy of optimized formulation, In vitro studies (antidiabetic) are going on in the laboratory The experimental process involved the reaction of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide(cas: 456-12-2).Quality Control of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide

The Article related to aegle herbosome marmelosin phytoconstituent stability, Pharmaceuticals: General and other aspects.Quality Control of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide

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

On November 15, 2004, Jaiswal, Mona; Khadikar, Padmakar V.; Supuran, Claudiu T. published an article.COA of Formula: C6H5ClN2O4S The title of the article was Topological modeling of lipophilicity, diuretic activity, and carbonic inhibition activity of benzene sulfonamides: a molecular connectivity approach. And the article contained the following:

A large series of distance-based topol. indexes has been used for modeling lipophilicity, diuretic activity, and carbonic anhydrase inhibition activity of a library of simple substituted benzene sulfonamides. The results have shown that the topol. approach used is quite useful for modeling carbonic anhydrase inhibition and the use of mol. connectivity is the best for this purpose. Excellent results are obtained in multiparametric regressions. The results are critically discussed on the basis of statistical parameters. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).COA of Formula: C6H5ClN2O4S

The Article related to qsar benzene sulfonamide diuretic carbonic anhydrase, Pharmacology: Structure-Activity and other aspects.COA of Formula: C6H5ClN2O4S

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

On May 15, 2011, Munigunti, Ranjith; Mulabagal, Vanisree; Calderon, Angela I. published an article.Recommanded Product: N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide The title of the article was Screening of natural compounds for ligands to PfTrxR by ultrafiltration and LC-MS based binding assay. And the article contained the following:

In our study, we have screened 133 structurally diverse natural compounds from the MEGx collection of AnalytiCon Discovery and three synthetic hispolone analogs for binding affinity to Plasmodium falciparum thioredoxin reductase (PfTrxR) using an ultrafiltration (UF) and liquid chromatog. (LC/MS) based ligand-binding assay newly developed in our laboratory PfTrxR catalyzes the reduction of thioredoxin (PfTrx) protein. In reduced form, PfTrx is essentially involved in the antioxidative defense and redox regulation of P. falciparum. Nine compounds (yohimbine (1), catharanthine (2), vobasine (3), gnetifolin E (4), quinidine N-oxide (5), 11-hydroxycoronaridine (6), hispolone (7), hispolone Me ether (8), and hernagine (9)) displayed binding affinity for PfTrxR at 1 μM. The ranking order of compound’s binding affinities for PfTrxR is 7 > 6 > 2 > 4 > 5 > 8 > 1 > 9 > 3. On the other hand, compounds 6, 7, 2 and 8 demonstrated specific binding to the active site of PfTrxR, when ligands were tested in an equimolar mixture of 1 μM. The experimental process involved the reaction of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide(cas: 456-12-2).Recommanded Product: N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide

The Article related to screening ligand lc ms thioredoxin reductase, Pharmacology: Structure-Activity and other aspects.Recommanded Product: N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide

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

Cornwell, E. published an article in 2007, the title of the article was Application of the Vc3 topographic QSPR parameter to benzene sulfonamide derivatives.Application of 97-09-6 And the article contains the following content:

A novel QSPR topog. parameter (Vc3) is used for reduction of the number of independent variables to one variable Vc3, consistent with Euclidian distances relations. This procedure was applied to a model of 19 benzene sulfonamide derivatives, using benzenesulfonamide as a reference The derivatives were characterized by physicochems. properties used as independent variables. The variables are: refraction index, surface tension and an extra dummy variable that indicated the presence or absence chlorine atoms in the mol., while pKa was used like dependent variable. The linear regression proposed is of the form. pKa = m* Vc3 + n, that is more coherent than its counterpart multivariable regression. The use of this variable reduction eliminated problems of orthogonal procedure or the use of Principal Component Anal. (PCA) to obtain consistent models. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).Application of 97-09-6

The Article related to qspr benzene sulfonamide derivative, General Organic Chemistry: Other and other aspects.Application of 97-09-6

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

On June 30, 2016, Beloglazkina, Anastasia A.; Wobith, Birgit; Barskaia, Elena S.; Zefirov, Nikolay A.; Majouga, Alexander G.; Beloglazkina, Elena K.; Zyk, Nikolay V.; Kuznetsov, Sergei A.; Zefirova, Olga N. published an article.Application of 27115-50-0 The title of the article was Synthesis and biological testing of (5Z)-2-aryl-5-arylmethylidene-3,5-dihydro-4H-imidazol-4-ones as antimitotic agents. And the article contained the following:

Compounds interacting with cell protein tubulin and microtubules represent an important type of antimitotic agents. A series of tubulin-targeted 2-aryl-4-benzoyl-imidazoles were reported to possess high cytotoxicity, and so, the authors prepared a series of structural isomers of these to be evaluated as antimitotic agents. The synthesis of the novel (Z)-2-aryl-5-arylmethylidene-3,5-dihydro-4H-imidazol-4-ones involved coupling of substituted hippuric acids with aromatic aldehydes. Subsequent conversion of the resulting oxazolones to the corresponding imidazolones was carried out under microwave irradiation in the presence of urea and ammonium acetate. The cytotoxicity of the majority of the compounds to human epithelial carcinoma cancer cell line A549 was in the sub-micromolar range and was found to be more sensitive to the substituents on the 5-arylmethylidene fragment than on the 2-aryl ring in general. The cytotoxicities of the synthesized compounds were lower than those of the previously reported isomeric 2-aryl-4-benzoyl-imidazoles, and the basic structure-activity relationships in the isomeric pairs were different. Synthesized (5Z)-5-[(4-bromophenyl)methylidene]-2-(4-methylphenyl)-3,5-dihydro-4H-imidazol-4-one, which had the highest cytotoxicity (IC50 ∼ 440 nM) in the series of novel compounds, had a definite cytostatic effect on the A549 cells, but its antiproliferative properties were not linked to action on the microtubules. This would be an interesting lead compound for addnl. investigation into the mechanism of cytostatic action, and further structural optimization. The experimental process involved the reaction of 2-(4-Methylbenzamido)acetic acid(cas: 27115-50-0).Application of 27115-50-0

The Article related to antimitotic antitumor neoplasm, Pharmacology: Structure-Activity and other aspects.Application of 27115-50-0

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

On November 30, 2016, Guillon, Jean; Moreau, Stephane; Ronga, Luisa; Basmacyian, Louise; Cohen, Anita; Rubio, Sandra; Bentzinger, Guillaume; Savrimoutou, Solene; Azas, Nadine; Mullie, Catherine; Sonnet, Pascal published an article.HPLC of Formula: 5455-98-1 The title of the article was Design, Synthesis and Antimalarial Activity of Some New Aminoalcoholpyrrolo[1,2-a]quinoxaline Derivatives. And the article contained the following:

Following our search for antimalarial compounds, novel series of piperazinylalc. pyrrolo[ 1,2-a]quinoxaline derivatives 1-2 were synthesized from 2-nitroaniline or 2-amino-3- nitrophenol and tested for in vitro activity upon the intraerythrocytic stage of W2 and 3D7 Plasmodium falciparum strains. Biol. results showed good antimalarial activity with IC50 ranging from 0.3 to 21.1 μM. In attempting to investigate the large broad-spectrum antiprotozoal activities of these pyrrolo[1,2-a]quinoxaline derivatives, their properties toward the promastigote form of Leishmania donovani were also investigated and revealed their selective antiplasmodial profile. In parallel, the in vitro cytotoxicity of these mols. was assessed on the human HepG2 cell line. Structure-activity relationships of these new synthetic compounds are here discussed. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).HPLC of Formula: 5455-98-1

The Article related to antimalarial msbar, Pharmacology: Structure-Activity and other aspects.HPLC of Formula: 5455-98-1

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

Yousefinejad, Saeed; Honarasa, Fatemeh; Fararouei, Mohammad; Moosavi-Movahedi, Ali A. published an article in 2019, the title of the article was Structure-electrochemistry relationship for monovalent alkaline metals in non-aqueous solutions.Product Details of 685-91-6 And the article contains the following content:

Electrochem. methods, which deal with the interrelation of chem. and elec. properties, are interesting because of numerous advantages. Here, the electrochem. behavior of three important single-at. metallic monovalent ions (Li+, Na+, K+) were modelled in some organic solvents based on quant. structure electrochem. relationships. Because the inorganic ions have not mol. structure, only structural information of organic solvents was involved in the model. Q2 of cross validation were 0.95, 0.88 and 0.82 in lithium, sodium and potassium models, resp., and the R2test were 0.97, 0.89 and 0.93 in lithium, sodium and potassium models, resp. Various validation approaches were used to evaluate the proposed linear models. The results not only are useful for the prediction and estimation of the voltammetric behavior of the studied cations but also give a way to descript the important features of the utilized organic solvents on the half wave potential of lithium, sodium and potassium. The experimental process involved the reaction of N,N-Diethylacetamide(cas: 685-91-6).Product Details of 685-91-6

The Article related to structure electrochem relationship monovalent alkanic metal non aqeous solution, Biochemical Methods: Electrical and other aspects.Product Details of 685-91-6

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

On May 31, 2021, Kuljanin, Miljan; Mitchell, Dylan C.; Schweppe, Devin K.; Gikandi, Ajami S.; Nusinow, David P.; Bulloch, Nathan J.; Vinogradova, Ekaterina V.; Wilson, David L.; Kool, Eric T.; Mancias, Joseph D.; Cravatt, Benjamin F.; Gygi, Steven P. published an article.Related Products of 79-07-2 The title of the article was Reimagining high-throughput profiling of reactive cysteines for cell-based screening of large electrophile libraries. And the article contained the following:

Current methods used for measuring amino acid side-chain reactivity lack the throughput needed to screen large chem. libraries for interactions across the proteome. Here we redesigned the work flow for activity-based protein profiling of reactive cysteine residues by using a smaller desthiobiotin-based probe, sample multiplexing, reduced protein starting amounts and software to boost data acquisition in real time on the mass spectrometer. Our method, streamlined cysteine activity-based protein profiling (SLC-ABPP), achieved a 42-fold improvement in sample throughput, corresponding to profiling library members at a depth of >8,000 reactive cysteine sites at 18 min per compound We applied it to identify proteome-wide targets of covalent inhibitors to mutant Kirsten rat sarcoma (KRAS)G12C and Bruton’s tyrosine kinase (BTK). In addition, we created a resource of cysteine reactivity to 285 electrophiles in three human cell lines, which includes >20,000 cysteines from >6,000 proteins per line. The goal of proteome-wide profiling of cysteine reactivity across thousand-member libraries under several cellular contexts is now within reach. The experimental process involved the reaction of 2-Chloroacetamide(cas: 79-07-2).Related Products of 79-07-2

The Article related to reactive cysteine screening large electrophile library, Biochemical Methods: Biological and other aspects.Related Products of 79-07-2

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