Tag: M.W=0-100

Electric Literature of 584-13-4, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 584-13-4, Name is 4H-1,2,4-Triazol-4-amine, SMILES is C1=NN=C[N]1N, belongs to Triazoles compound. In a article, author is Ma, Feifei, introduce new discover of the category.

Gestational exposure to tebuconazole affects the development of rat fetal Leydig cells

Tebuconazole is a triazole fungicide, used in agriculture to treat phytopathogenic fungi, and as a biocide, has been reported to be related to reproductive and developmental toxicity. The purpose of this study was to investigate the effect of tebuconazole exposure on rat fetal Leydig cells and fetal testis during pregnancy. Pregnant Sprague-Dawley rats were randomly divided into 4 groups, daily gavaged with corn oil (as a control), 25, 50, and 100 mg/kg body weight tebuconazole for 10 days (from the 12th day of pregnancy). Tebuconazole increased fetal serum testosterone and progesterone levels at a dose of 100 mg/kg. Exposure to 100 mg/kg tebuconazole significantly caused an increase in the number of fetal Leydig cells per testis without inducing cell aggregation. Tebuconazole up-regulated the expression of Star, Cyp11a1, Hsd17b3, and Fshr and their proteins. Further investigation found that tebuconazole caused increased phosphorylation of AKT1, ERK1/2, and mTOR, the level of BCL2, as well as the decrease of Beclinl, LC3B, and BAX, which may contribute to the fetal Leydig cell autophagy and proliferation. In conclusion, in utero exposure of tebuconazole causes the proliferation of fetal Leydig cells. (C) 2020 Elsevier Ltd. All rights reserved.

Electric Literature of 584-13-4, One of the oldest and most widely used commercial enzyme inhibitors is aspirin, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 584-13-4.

Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Zhang, Maoyuan, once mentioned the application of 288-88-0, Name is 1H-1,2,4-Triazole, molecular formula is C2H3N3, molecular weight is 69.0653, MDL number is MFCD00005228, category is Triazoles. Now introduce a scientific discovery about this category, HPLC of Formula: C2H3N3.

Cu(I)-N-heterocyclic carbene-catalyzed base free C-N bond formation of arylboronic acids with amines and azoles

A new N-heterocyclic carbene (NHC) precursor of imidazolium chloride and its corresponding Cu(I)-NHC complex 1 was synthesized. The complex 1 was found to be a highly effective catalyst for Chan-Evans-Lam coupling of arylboronic acid with amines and azoles (including imidazole, pyrazole and triazole), without addition of base at room temperature. Various substituents on three substrates can be tolerated, giving the desired coupling products in good to excellent yields (62-94%). The method is practical and offers an alternative to the corresponding copper-catalyzed Chan-Evans-Lam process for the construction of C-N bonds. (C) 2020 Published by Elsevier Ltd.

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Related Products of 288-88-0, Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. The appropriate choice of redox mediator can avoid electrode passivation and overpotential. 288-88-0, Name is 1H-1,2,4-Triazole, SMILES is N1N=CN=C1, belongs to Triazoles compound. In a article, author is Librando, Ivy L., introduce new discover of the category.

The Catalytic Activity of Carbon-Supported Cu(I)-Phosphine Complexes for the Microwave-Assisted Synthesis of 1,2,3-Triazoles

A set of Cu(I) complexes with 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo-[3.3.1]nonane (DAPTA) phosphine ligands viz. [CuX(kappa P-DAPTA)(3)] (1: X = Br; 2: X = I) and [Cu(mu-X)(kappa P-DAPTA)(2)](2) (3: X = Br; 4: X = I) were immobilized on activated carbon (AC) and multi-walled carbon nanotubes (CNT), as well as on these materials after surface functionalization. The immobilized copper(I) complexes have shown favorable catalytic activity for the one-pot, microwave-assisted synthesis of 1,2,3-triazoles via the azide-alkyne cycloaddition reaction (CuAAC). The heterogenized systems with a copper loading of only 1.5-1.6% (w/w relative to carbon), established quantitative conversions after 15 min, at 80 degrees C, using 0.5 mol% of catalyst loading (relative to benzyl bromide). The most efficient supports concerning heterogenization were CNT treated with nitric acid and NaOH, and involving complexes 2 and 4 (in the same order, 2 CNT-ox-Na and 4_CNT-ox-Na). The immobilized catalysts can be recovered and recycled by simple workup and reused up to four consecutive cycles although with loss of activity.

Related Products of 288-88-0, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 288-88-0.

Chemistry is an experimental science, Recommanded Product: 1H-1,2,4-Triazole, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 288-88-0, Name is 1H-1,2,4-Triazole, molecular formula is C2H3N3, belongs to Triazoles compound. In a document, author is Kadela-Tomanek, Monika.

Design, synthesis and biological activity of 1,4-quinone moiety attached to betulin derivatives as potent DT-diaphorase substrate

In this research, betulin derivatives were bonded to the 1,4-quinone fragment by triazole linker. Furthermore, the enzymatic assay used has shown that these compounds are a good DT-diaphorase (NQO1) substrates as evidenced by increasing enzymatic conversion rates relative to that of streptonigrin. The anticancer activities of the hybrids were tested against a panel of human cell lines, like: melanoma, ovarian, breast, colon, and lung cancers. The structure-activity relationship showed that the activity depends on the type of 1,4-quinone moiety and the tumor cell lines used. It was also found that the anticancer effects were increasing against the cell line with higher NQO1 protein level, like: breast (T47D, MCF-7), colon (Caco-2), and lung (A549) cancers. The transcriptional activity of the gene encoding a proliferation marker (H3 histone), cell cycle regulators (p53 and p21) and apoptosis pathway (BCL-2 and BAX) for selected compounds were determined. The molecular docking study was carried out to examine the interaction between the hybrids and NQO1 enzyme. The computational simulation showed that the type of the 1,4-quinone moiety influences location of the compound in the active site of the enzyme. It is worth noting that the study of new hybrids of betulin as substrate for NQO1 protein may lead to new medical therapeutic applications in the future.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 288-88-0, in my other articles. Recommanded Product: 1H-1,2,4-Triazole.

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 584-13-4, Name is 4H-1,2,4-Triazol-4-amine, molecular formula is C2H4N4. In an article, author is Kosmidis, Chris,once mentioned of 584-13-4, Category: Triazoles.

Isavuconazole Therapeutic Drug Monitoring during Long-Term Treatment for Chronic Pulmonary Aspergillosis

Isavuconazole is the newest triazole antifungal, and it displays a favorable pharmacokinetic and safety profile. Less is known about its long-term use in immunocompetent hosts. We performed a retrospective service evaluation of isavuconazole therapeutic drug monitoring in patients with chronic pulmonary aspergillosis. Adverse events (AEs) and dose adjustments made during routine clinical practice were recorded, and AEs were classified based on Common Terminology Criteria for Adverse Events v5.0. Forty-five patients (mean age, 64 years) had 285 isavuconazole blood drug levels measured (mean level, 4.1 mg/liter). A total of 117 measurements (41%) were performed on patients on a 100-mg daily dose instead of 200 mg, and all had blood levels of >1 mg/liter. Age (P = 0.012) and a daily dose of 200 mg versus 100 mg (P = 0.02) were independent predictors of levels of >6 mg/liter. AEs were recorded for 25 patients (56%). The mean drug level at the first measurement was 5.5 +/- 2 mg/liter for patients reporting AEs, compared with 4.2 +/- 1.7 mg/liter for those not reporting AEs (P = 0.032). The cutoff threshold best predictive of an AE was 4.6 mg/liter (area under the concentration-time curve, 0.710). Sixteen patients (36%) discontinued isavuconazole therapy due to AEs. Twenty-six patients (58%) continued on isavuconazole beyond 6 months. Asthma (P = 0.022) and a daily dose of 200 mg versus 100 mg (P = 0.048) were associated with AEs of grade 2 or higher. A reduced daily dose (100 mg versus 200 mg) of isavuconazole resulted in satisfactory drug levels in a substantial number of patients; it was better tolerated and enabled continuation of therapy for prolonged periods.

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Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 584-13-4, Name is 4H-1,2,4-Triazol-4-amine, SMILES is C1=NN=C[N]1N, belongs to Triazoles compound. In a document, author is Krikis, Karlis-Eriks, introduce the new discover, Name: 4H-1,2,4-Triazol-4-amine.

1,2,3-Triazoles as leaving groups in SN(A)r-Arbuzov reactions: synthesis of C6-phosphonated purine derivatives

A new method for C-N bond transformations into C-P bonds was developed using 1,2,3-triazoles as leaving groups in SNAr-Arbuzov reactions. A series of C6-phosphonated 2-triazolylpurine derivatives was synthesized for the first time, with the isolated yields reaching up to 82% in the C-P-bond-forming event. The SNAr-Arbuzov reaction of 2,6-bistriazolylpurines follows the general regioselectivity pattern of the C6-position being more reactive towards substitution, which was unambiguously proved by X-ray analysis of diethyl (9-heptyl-2-(4-phenyl-1H-1,2,3-triazol-1-yl)-9H-purin-6-yl)phosphonate.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 584-13-4 is helpful to your research. Name: 4H-1,2,4-Triazol-4-amine.

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 584-13-4, Name is 4H-1,2,4-Triazol-4-amine, formurla is C2H4N4. In a document, author is Iqbal, Urooj, introducing its new discovery. Computed Properties of C2H4N4.

Synthesis of co-crystals of anti-cancer nandrolone as a potential leads towards treatment of cancer

Co-crystals are emerging as members of supramolecular family having particular practical and fundamental significance for chemists, crystallographers, pharmaceutical scientists, and theoreticians. The presented study is focused to synthesize anti-cancer co-crystals of commercially available nandrolone (1), a synthetic anabolic-androgenic steroidal drug. Co-crystallization is done using economical and green grinding and reflux methods to obtain nandrolone (Nan): salicylic acid (Sal) and nandrolone (Nan): 3-amino-1,2,4-triazole (Triz) co-crystals, in 2:1 and 1:1 stoichiometric ratios, respectively. The structural analysis and characterization were carried out using single-crystal X-ray diffraction, and vibrational spectroscopy. Nandrolone (1) crystallizes in monoclinic P2(1) space group, while the co-crystal-I (Nan:Sal) and co-crystal-II (Nan:Triz), co-crystallized in the orthorhombic P2(1)2(1)2(1) space group. The intermolecular hydrogen bonds O-H center dot center dot center dot O, C-H center dot center dot center dot O, N-H center dot center dot center dot O, O-H center dot center dot center dot N, and N-H center dot center dot center dot N between the active pharmaceutical ingredient (nandrolone) and co-formers (salicylic acid, and 3-amino-1,2,4-triazole) stabilize the structures of cocrystals. In vibrational spectroscopy of co-crystal-I (Nan:Sal), the blue shifts in stretching frequencies of hydroxyl group from 3417.9 cm(-1) to 3427.8 cm(-1) further supported the hydrogen bond interactions between API and co-former. Similarly, in co-crystal-II (Nan:Triz) the NH2 stretching frequency from 3331.4- 3413.4 cm(-1) to 3312.7 cm(-1), supported the interaction of NH2 with API via intermolecular interaction. Nandrolone (1) and both co-crystals were found to be non-cytotoxic against 3T3 normal fibroblast cell line. Nandrolone (IC50 = 1.0 0.1 mu M), co-crystal-I (Nan:Sal) (IC50 = 1.6 +/- 0.3 mu M) and-II (Nan:Triz) (IC50 = 1.8 +/- 0.1 mu M) showed anti-cancer potential against cervical cancer HeLa cell line. While doxorubicin (IC50 = 1.2 +/- 0.2 mu M) was used as standard tested compound. SYNOPSIS Two new non-cytotoxic co-crystals of synthetic anabolic-androgenic steroidal drug nandrolone (Nan) with pharmaceutically acceptable salicylic acid (Sal), and triazole (Triz) were synthesized and their structures were elucidated using single-crystal X-ray diffraction, and vibrational spectroscopy. Quantitative analysis of -OH and -NH2 intermolecular interactions between API and co-former by Hirshfeld surface analysis further supported the role of various functionalities towards the stability of co-crystals. Both co-crystals were found to be non-cytotoxic against 3T3 normal fibroblast cell line. Co-crystal-I (Nan:Sal) and co-crystal-II (Nan:Triz) were found to be selectively active against HeLa cancer cell line (IC50 = 1.6 +/- 0.3 mu M), (IC50 = 1.8 +/- 0.1 mu M). (c) 2020 Elsevier B.V. All rights reserved.

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In an article, author is Zhang, Tong, once mentioned the application of 288-88-0, Category: Triazoles, Name is 1H-1,2,4-Triazole, molecular formula is C2H3N3, molecular weight is 69.0653, MDL number is MFCD00005228, category is Triazoles. Now introduce a scientific discovery about this category.

A novel three-dimensional cadmium sulfate-based inorganic-organic hybrid polymer with green photoluminescence

Layer diffusion of 3,5-bis(4-pyridyl)-1H-1,2,4-triazole (BptH) in ethanol on an aqueous solution of cadmium sulfate leads to a novel three-dimensional cadmium sulfate-based inorganic-organic hybrid polymer (IOHP), CdSO4(H2O)(BptH)center dot 1.5H(2)O (1). Its structure was determined by single-crystal X-ray diffraction (SCXRD), and further characterized by elemental analysis, powder X-ray diffraction (PXRD), infrared spectra (IR), and thermogravimetric (TG) analysis. IOHP 1 exhibits a novel 2-nodal 3,5-connected nanoporous structure formed by BptH ligands connecting 2D neutral inorganic cadmium sulfate layers. Water molecules reside in its nanoporous channels. The thermal stability and solid-state photo-luminescence properties of the compound have also been investigated.

If you are interested in 288-88-0, you can contact me at any time and look forward to more communication. Category: Triazoles.

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 584-13-4, Name is 4H-1,2,4-Triazol-4-amine, molecular formula is C2H4N4. In an article, author is Anterbedy, Jagram,once mentioned of 584-13-4, Computed Properties of C2H4N4.

Facial synthesis of novel 3-(2-methylbenzofuran-3-yl)-5-((4-(phenoxymethyl)-1H-1,2,3-triazole-1-yl)methyl)-1,2,4-oxadiazole derivatives

An efficient and practical methodology was developed for rapid and green synthesis of novel benzofuran-1,2,4-oxadiazole-1,2,3-triazole hybrids (6a-n) from 5-(chloromethyl)-3-(2-methylbenzofuran-3-yl)-1,2,4-oxadiazoles (4a-b) by in situ generation of 5-(azidomethyl)-3-(2-methylbenzofuran-3-yl)-1,2,4-oxadiazoles followed by 1,3-dipolar cycloaddition with substituted-1-(prop-2-yn-1-yloxy)benzenes (5a-g) through Click reaction under mild reaction conditions with good to excellent yields (70-86%).

Interested yet? Keep reading other articles of 584-13-4, you can contact me at any time and look forward to more communication. Computed Properties of C2H4N4.

Related Products of 584-13-4, Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. 584-13-4, Name is 4H-1,2,4-Triazol-4-amine, SMILES is C1=NN=C[N]1N, belongs to Triazoles compound. In a article, author is Lal, Sohan, introduce new discover of the category.

Synthesis and energetic properties of homocubane based high energy density materials

The energetic properties of homocubane derivatives have been evaluated for the first time. The newly synthesized compounds have been fully characterized by spectroscopic methods and single crystal X-ray analysis. Detailed computational studies carried out using the B3LYP/6-311++G(d,p) level of theory reveal that these compounds have higher densities and higher heat of formation as compared to common hydrocarbon fuels. The calculated performances of these compounds in terms of their ballistic properties, particularly density specific impulse (rho I-sp), in liquid and in solid propellant systems are substantially superior to those of the conventional fuel RP1 and binder HTPB, respectively. TGA-DTG analysis confirmed that most of these compounds are thermally stable with high onset temperatures. Most of the compounds, except oxadiazole, triazole and triazine containing cages, are also kinetically stable in terms of their HOMO-LUMO energy gap. Quite remarkably, three compounds emerged as excellent candidates for volume-limited applications owing to their high density, density specific impulse as well as kinetic and thermodynamic stabilities.

Related Products of 584-13-4, The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 584-13-4 is helpful to your research.