Category: quinoxaline

90272-84-7, Name is 2-Chloro-7-methylquinoxaline, belongs to quinoxaline compound, is a common compound. Application In Synthesis of 2-Chloro-7-methylquinoxalineIn an article, once mentioned the new application about 90272-84-7.

QUINUCLIDINE COMPOUNDS AS ALPHA-7 NICOTINIC ACETYLCHOLINE RECEPTOR LIGANDS

The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds are ligands for the nicotinic 7 receptor and may be useful for the treatment of various disorders of the central nervous system, especially affective and neurodegenerative disorders

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1055 | ChemSpider

Synthetic Route of 130345-50-5, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 130345-50-5, Name is Quinoxaline-6-carbaldehyde,introducing its new discovery.

A new family of quinoline and quinoxaline analogues of combretastatins

The 3-hydroxy-4-methoxyphenyl ring of combretastatin A-4 can be replaced by a 2-naphthyl moiety without significant loss of cytotoxicity and inhibition of tubulin polymerization potency. In this paper we show that the 6- or 7-quinolyl systems can in turn replace both cyclic moieties, keeping in the first case most of the potency as cytotoxic agent and in the second case as inhibitor of tubulin polymerization, related to the activities displayed by model compounds.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N228 | ChemSpider

Application of 15804-19-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.15804-19-0, Name is Quinoxaline-2,3(1H,4H)-dione, molecular formula is C8H6N2O2. In a Article£¬once mentioned of 15804-19-0

New camphor hybrids: lipophilic enhancement improves antimicrobial efficacy against drug-resistant pathogenic microbes and intestinal worms

Using the Blanc reaction, new derivatives of camphor (1a?g) and camphor sulfonic acid (2a?g) were synthesized. Chemical structures of the new derivatives were supported by IR, 1H-NMR, 13C-NMR, and LC-MS/MS (ESI) spectrometric analyses. The new compounds (1a?g/2a?g) and the parent compounds (a?g) were tested for their antimicrobial efficacy against the following drug-resistant pathogens: methicillin-resistant Staphylococcus aureus (MRSA), multi-drug resistant Klebsiella pneumonia (MDR-Kb), Escherichia coli (FDA control), Acinetobacter baumannii, Pseudomonas aeruginosa, Candida albicans (CLSI: Clinical and Laboratory Standards Institute strain) and Cryptococcus neoformans var. grubii. The linking of camphor to quinoxalin-2,3(1H, 4H)-dione (1a) enhances the antibacterial efficacy approximately 8-folds (MIC: 24 muM) against MRSA. Camphor linking with isatin (1g) increased efficacy against Acinetobacter baumannii by 8-fold (MIC: 26 muM) and by 4-fold (MIC: 51 muM) against MRSA, MDR-Kb, E. coli, P. auruginosa and C. albicans. Among the series, derivatives of benzoin (1e) and salicylic acid (1f) exhibited greater efficacy against drug-resistant Candida albicans, MDR-Kb and Acinetobacter baumannii, whereas 6, 7-biphenylquinoxalin 2-sulfonamide/sulphonyl chloride (1b/1d) selectively inhibited the growth of Gram-negative bacteria. None of these compounds were active against Cryptococcus neoformans var. grubii. Furthermore, these new derivatives were tested for anthelmintic efficacy and the results indicated that new compounds had significant anthelmintic efficacy (p < 0.05) at 2.5 mg/mL, except for the salicylic acid hybrids (1f, 2f). To conclude, camphor hybrids (1a?g) demonstrated enhanced antimicrobial and anthelmintic efficacy compared to the camphor sulfonic acid hybrids (2a?g). This improved antimicrobial efficacy may be due to the increased membrane permeability of the compounds across the cell wall, via the camphor moiety, which augmented the lipophilicity of the new compounds. A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 15804-19-0 Reference£º
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N377 | ChemSpider

Synthetic Route of 2213-63-0, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 2213-63-0, Name is 2,3-Dichloroquinoxaline,introducing its new discovery.

Photoreactions in Crystals with Ethenes: Selectivities and Crystal Engineering

Photoreactions in crystals of sterically hindered dimethylenecyclopentanones 1 and trimethylenecyclopentanes 4 lead to E/Z isomerizations and 1,5-H shifts.The stereochemical result of the photodimerization in the crystalline state of the heterostilbenes 6 is apparently determined by the polarity (dipole moment), which governs the crystal packing as well.A strong dissymmetry of charge (as in 6a-g) gives rise to H(ead)/T(ail)-syn dimers 7.This correlates well with the molecular stacking in the crystals of 6c, as determined by X-ray analysis.A low dissymmetry of charge (as in 6h) leaves the crystals photostable.At medium polarity two products with H/T-syn and H/H-syn stereochemistry (7 and 8) or, in particular cases, only dimers of type 8 are formed.The precise stereochemistry is proved by comparison with the analyzed 1H-NMR parameters of esters of truxillic and truxinic acids.Bifunctional heterostilbenes like 12c are photostable in the crystalline state.However, strongly polar methoxycarbonyl (13) and acetyl groups (17, 21) lead to photoreactive crystals again.In the case of 17 this is also shown by X-ray analysis.Due to well-defined possibilities of movement, there are three products formed in terms of multiproduct topochemistry. 13 and 21 also form several products upon photoreaction in the crystal.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1385 | ChemSpider

Related Products of 2213-63-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.2213-63-0, Name is 2,3-Dichloroquinoxaline, molecular formula is C8H4Cl2N2. In a Article£¬once mentioned of 2213-63-0

Design, synthesis, and biological evaluation of novel 4-alkylamino-1- hydroxymethylimidazo[1,2-a]quinoxalines as adenosine A1 receptor antagonists

The preparation and biological evaluation of a series of 4-alkylamino-1-hydroxymethylimidazo[1,2-a]quinoxalines as adenosine A 1 receptor antagonists are described. 4-Cyclopentylamino-7,8- dichloro-1-hydroxymethylimidazo[1,2-a]quinoxaline shows potent adenosine A 1 receptor inhibitory activity, having Ki = 7 nM. A series of 4-alkylamino-1-hydroxymethylimidazo[1,2-a]quinoxalines have been synthesized and evaluated for their adenosine A1 receptor inhibitory activity in the radioligand binding assays. The compounds were tested for the inhibition percent (IP) and the affinity toward A1AR (Ki) that IP were more than 90% in the nanomolar range. 4-Cyclopentylamino-7,8-dichloro-1- hydroxymethylimidazo[1,2-a]quinoxaline 18 is the most potent compound in this series, having Ki = 7 nM, which is remarkably higher than that of IRFI-165 (Ki = 48). 1-Hydroxymethyl groups of the tricyclic heteroarmatic compounds displayed the potent affinities toward A1AR.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1432 | ChemSpider

Chemistry is traditionally divided into organic and inorganic chemistry. COA of Formula: C8H5ClN2, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 1448-87-9

Metal-, Photocatalyst-, and Light-Free Minisci C-H Alkylation of N-Heteroarenes with Oxalates

Herein, we report a mild protocol for metal-, photocatalyst-, and light-free Minisci C-H alkylation reactions of N-heteroarenes with alkyl oxalates derived from primary, secondary, and tertiary alcohols. The protocol uses environmentally benign persulfate as a stoichiometric oxidant and does not require high temperatures or large excesses of either of the substrates, making the procedure suitable for late-stage C-H alkylation of complex molecules. Notably, several pharmaceuticals and natural products could be functionalized or prepared with this protocol, thus demonstrating its utility.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N574 | ChemSpider

Reference of 108258-54-4, Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Patent, and a compound is mentioned, 108258-54-4, Methyl 2,3-dichloroquinoxaline-6-carboxylate, introducing its new discovery.

Novel [1,2,4]Triazolo[4,3-a]Quinoxaline Derivative, Method For Preparing Same, And Pharmaceutical Composition For Preventing Or Treating BET Protein-Related Diseases, Containing Same As Active Ingredient

Provided are a novel [1,2,4]triazolo[4,3-a]quinoxaline derivative, a method for preparing the same, and a pharmaceutical composition for preventing or treating bromodomain extra-terminal (BET) protein-related diseases including cancer and autoimmune diseases, containing the same as an active ingredient.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Reference of 108258-54-4. In my other articles, you can also check out more blogs about 108258-54-4

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1982 | ChemSpider

Synthetic Route of 32998-25-7, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 32998-25-7, molcular formula is C9H7ClN2O, introducing its new discovery.

Quinoxalinones

The invention features quinoxalinones, pharmaceutical compositions containing them and methods of using them to treat, for example, diabetes.

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 32998-25-7 is helpful to your research. Synthetic Route of 32998-25-7

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1115 | ChemSpider

Chemistry is traditionally divided into organic and inorganic chemistry. name: 6-Nitroquinoxaline-2,3-dione, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 2379-56-8

Alkyl, azido, alkoxy, and fluoro-substituted and fused quinoxalinediones and the use thereof as glycine receptor antagonist

Methods of treating or preventing neuronal loss associated with stroke, ischemia, CNS trauma, hypoglycemia, and surgery, as well as treating neurodegenerative diseases including Alzheimer”s disease, amyotrophic lateral sclerosis, Huntington”s disease, and Down”s syndrome, treating or preventing the adverse consequences of the hyperactivity of the excitatory amino acids, as well as treating anxiety, chronic pain, convulsions, and inducing anesthesia are disclosed by administering to an animal in need of such treatment an alkyl or azido-substituted 1,4-dihydroquinoxaline-2,3-dione or pharmaceutically acceptable salts thereof, which have high binding to the glycine receptor.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1693 | ChemSpider

Chemistry is an experimental science, Recommanded Product: 7-Chloroquinolin-4-ol, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 86-99-7, Name is 7-Chloroquinolin-4-ol, molecular formula is C9H6ClNO, belongs to quinoxaline compound. In a document, author is Munir, Rubina.

Microwave-Assisted Synthesis of (Piperidin-1-yl)quinolin-3-yl)methylene)hydrazinecarbothioamides as Potent Inhibitors of Cholinesterases: A Biochemical and In Silico Approach

Alzheimer’s disease (AD), a progressive neurodegenerative disorder, characterized by central cognitive dysfunction, memory loss, and intellectual decline poses a major public health problem affecting millions of people around the globe. Despite several clinically approved drugs and development of anti-Alzheimer’s heterocyclic structural leads, the treatment of AD requires safer hybrid therapeutics with characteristic structural and biochemical properties. In this endeavor, we herein report a microwave-assisted synthesis of a library of quinoline thiosemicarbazones endowed with a piperidine moiety, achieved via the condensation of 6/8-methyl-2-(piperidin-1-yl)quinoline-3-carbaldehydes and (un)substituted thiosemicarbazides. The target N-heterocyclic products were isolated in excellent yields. The structures of all the synthesized compounds were fully established using readily available spectroscopic techniques (FTIR, H-1- and C-13-NMR). Anti-Alzheimer potential of the synthesized heterocyclic compounds was evaluated using acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes. The in vitro biochemical assay results revealed several compounds as potent inhibitors of both enzymes. Among them, five compounds exhibited IC50 values less than 20 mu M. N-(3-chlorophenyl)-2-((8-methyl-2-(piperidin-1-yl)quinolin-3-yl)methylene)hydrazine carbothioamide emerged as the most potent dual inhibitor of AChE and BChE with IC50 values of 9.68 and 11.59 mu M, respectively. Various informative structure-activity relationship (SAR) analyses were also concluded indicating the critical role of substitution pattern on the inhibitory efficacy of the tested derivatives. In vitro results were further validated through molecular docking analysis where interactive behavior of the potent inhibitors within the active pocket of enzymes was established. Quinoline thiosemicarbazones were also tested for their cytotoxicity using MTT assay against HepG2 cells. Among the 26 novel compounds, there were five cytotoxical and 18 showed proliferative properties.

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Reference:
Quinoline – Wikipedia,
,Quinoline | C9H7N – PubChem