Month: February 2021

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Application In Synthesis of Quinuclidin-3-yl acetate, such as the rate of change in the concentration of reactants or products with time.In a article, authors is Ward, John S., mentioned the application of 827-61-2, Name is Quinuclidin-3-yl acetate, molecular formula is C9H15NO2

1,2,5-thiadiazole analogues of aceclidine as potent m1 muscarinic agonists

The acetyl group of the muscarinic agonist aceclidine 4 was replaced by various 1,2,5-thiadiazoles to provide a new series of potent m1 muscarinic agonists 17 and 18. Optimal m1 muscarinic agonist potency was achieved when the 1,2,5-thiadiazole substituent was either a butyloxy, 17d, or butylthio, 18d, group. Although 1,2,5-oxadiazole 37 and pyrazine 39 are iso-pi- electronic with 1,2,5-thiadiazole 17d, both analogues were substantially less active than 17d. Compounds with high muscarinic affinity and/or m1 muscarinic agonist efficacy were also obtained when the 3-oxyquinuclidine moiety of 17d or 18c was replaced by ethanolamines, hydroxypyrrolidines, hydroxyazetidine, hydroxyisotropanes, or hydroxyazanorbornanes. The structure-activity data support the participation of the oxygen or sulfur atom in the substituent on the 1,2,5-thiadiazole in the activation of the m1 receptor. Several of these new 1,2,5-thiadiazoles have m1 agonist efficacy, potency, and selectivity comparable to those of xanomeline 2 in the muscarinic tests investigated.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H89N | ChemSpider

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. COA of Formula: C7H16Cl2N2. Introducing a new discovery about 123536-14-1, Name is (R)-3-Aminoquinuclidine dihydrochloride

Varying Chirality Across Nicotinic Acetylcholine Receptor Subtypes: Selective Binding of Quinuclidine Triazole Compounds

The novel quinuclidine anti-1,2,3-triazole derivatives T1-T6 were designed based on the structure of QND8. The binding studies revealed that the stereochemistry at the C3 position of the quinuclidine scaffold plays an important role in the nAChR subtype selectivity. Whereas the (R)-enantiomers are selective to alpha7 over alpha4beta2 (by factors of 44-225) and to a smaller degree over alpha3beta4 (3-33), their (S)-counterparts prefer alpha3beta4 over alpha4beta2 (62-237) as well as over alpha7 (5-294). The (R)-derivatives were highly selective to alpha7 over alpha3beta4 subtypes compared to (RS)- and (R)-QND8. The (S)-enantiomers are 5-10 times more selective to alpha4beta2 than their (R) forms. The overall strongest affinity is observed for the (S)-enantiomer binding to alpha3beta4 (Ki, 2.25-19.5 nM) followed by their (R)-counterpart binding to alpha7 (Ki, 22.5-117 nM), with a significantly weaker (S)-enantiomer binding to alpha4beta2 (Ki, 414-1980 nM) still above the very weak respective (R)-analogue affinity (Ki, 5059-10436 nM).

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Quinuclidine – Wikipedia,
Quinuclidine | C7H154N | ChemSpider

An article , which mentions 67496-78-0, molecular formula is C8H16N2. The compound – Quinuclidin-4-ylmethanamine played an important role in people’s production and life., category: quinuclidine

Cefiderocol (S-649266), A new siderophore cephalosporin exhibiting potent activities against Pseudomonas aeruginosa and other gram-negative pathogens including multi-drug resistant bacteria: Structure activity relationship

The structure-activity relationship (SAR) for a novel series of catechol conjugated siderophore cephalosporins is described with their in vitro activities against multi-drug resistant Gram-negative pathogens including Pseudomonas aeruginosa, Acinetobacter baumannii, Stenotrophomonas maltophilia and Enterobacteriaceae. Cefiderocol (3) was one of the best molecules which displayed well-balanced and potent activities against multi-drug resistant Gram-negative pathogens including carbapenem resistant bacteria among the prepared compounds with the modified C-7 side chain and the modified C-3 side chain. Cefiderocol (3) is a highly promising parenteral cephalosporin for the treatment of multi-drug resistant Gram-negative infection.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H27N | ChemSpider

123536-14-1, Name is (R)-3-Aminoquinuclidine dihydrochloride, belongs to quinuclidine compound, is a common compound. Recommanded Product: (R)-3-Aminoquinuclidine dihydrochlorideIn an article, once mentioned the new application about 123536-14-1.

PHARMACEUTICAL COMPOUNDS

The invention relates to compounds and compositions for inhibiting the enzyme fatty acid amide hydrolase (FAAH), the use of the compounds in therapy and, in particular, for treating or preventing conditions whose development or symptoms are linked to substrates of the FAAH enzyme, and methods of treatment or prevention using the compounds and compositions.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H114N | ChemSpider

An article , which mentions 827-61-2, molecular formula is C9H15NO2. The compound – Quinuclidin-3-yl acetate played an important role in people’s production and life., Product Details of 827-61-2

Thermochemical stability: A comparison between experimental and predicted data

The first step to be performed during the development of a new industrial process should be the assessment of all hazards associated to the involved compounds. Particularly, the knowledge of all substances thermochemical parameters is a primary feature for such a hazard evaluation. CHETAH (CHEmical Thermodynamic And Hazard evaluation) is a prediction software suitable for calculating potential hazards of chemicals, mixtures or a single reaction that, using only the structure of the involved molecules and Benson’s group contribution method, is able to calculate heats of formation, entropies, Gibbs free energies and reaction enthalpies. Because of its ability to predict the potential hazards of a material or mixture, CHETAH is part of the so-called “desktop methods” for early stage chemical safety analysis. In this work, CHETAH software has been used to compile a complete risk database reporting heats of decomposition and Energy Release Potential (ERP) for 342 common use chemicals. These compounds have been gathered into classes depending on their functional groups and similarities in their thermal behavior. Calculated decomposition enthalpies for each of the compounds have also been compared with experimental data obtained with either thermoanalytic or calorimetric techniques (Differential Scanning Calorimeter – DSC – and Accelerating Rate Calorimeter – ARC).

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Quinuclidine – Wikipedia,
Quinuclidine | C7H76N | ChemSpider

Application of 827-61-2, 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. 827-61-2, Name is Quinuclidin-3-yl acetate, molecular formula is C9H15NO2. In a Article£¬once mentioned of 827-61-2

The interaction of the enantiomers of aceclidine with subtypes of the muscarinic receptor

The pharmacological activity of the enantiomers of aceclidine was investigated in Chinese hamster ovary cells transfected with the M1 through M5 subtypes of the muscarinic receptor and also in the rat heart and parotid gland that express primarily M2 and M3 receptors, respectively. When measured by stimulation of phosphoinositide hydrolysis in Chinese hamster ovary cells transfected with the M1, M3 and M5 muscarinic subtypes, the potency of S-(+)-aceclidine was approximately 2- to 4-fold greater than that of R-(-)-aceclidine, whereas the maximal response of the R-(-)-isomer was only 44 to 64% that of the S-(+)-isomer. When measured by inhibition of forskolin-stimulated cyclic AMP accumulation in Chinese hamster ovary cells transfected with the M2 and M4 muscarinic subtypes, the potency of S-(+)- aceclidine was approximately 3.5-fold greater than that of R-(-)-aceclidine. In cells transfected with the M2 muscarinic receptor, the maximal responses of the enantiomers were the same, whereas the maximal response of R-(-)- aceclidine was 86% that of S-(+)-aceclidine in cells transfected with the M4 muscarinic subtype. The activities of the enantiomers of aceclidine at native M2 and M3 muscarinic receptors coupled to inhibition of adenylyl cyclase activity in the heart and stimulation of phosphoinositide hydrolysis in the parotid gland, respectively, were similar to those observed in Chinese hamster ovary cells transfected with the corresponding receptor subtypes. We devised a simple quantitative method for using our data in Chinese hamster ovary cells to predict the relative potencies of agonists in a more sensitive assay in which the agonists produce a full maximum response. By using this method, we were able to predict the relative potencies of the enantiomers for eliciting contractions in the guinea pig ileum, an M3 muscarinic response, from their activity in Chinese hamster ovary cells transfected with the M3 muscarinic subtype. Our method of analysis should have application in a variety of studies in which transfected cells are used to determine the pharmacological activity of agonists.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H55N | ChemSpider

Synthetic Route of 5291-32-7, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.5291-32-7, Name is APR-246, molecular formula is C10H17NO3. In a article£¬once mentioned of 5291-32-7

Aqueous solution comprising 3-quinuclidinones for the treatment of hyperproliferative, autoimmune and heart disease

no abstract published

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Quinuclidine – Wikipedia,
Quinuclidine | C7H163N | ChemSpider

123536-14-1, Name is (R)-3-Aminoquinuclidine dihydrochloride, belongs to quinuclidine compound, is a common compound. HPLC of Formula: C7H16Cl2N2In an article, once mentioned the new application about 123536-14-1.

BRIDGED, BICYCLIC HETEROCYCLIC OR SPIRO BICYCLIC HETEROCYCLIC DERIVATIVES OF PYRAZOLO[1,5-A]PYRIMIDINES, METHODS FOR PREPARATION AND USES THEREOF

Compounds of formula A: Formula (1) pharmaceutically acceptable salts thereof are described, which selectively inhibit Raf kinase activity and are useful for treating disorders mediated by Raf kinases.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H119N | ChemSpider

Electric Literature of 67496-78-0, 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. 67496-78-0, Name is Quinuclidin-4-ylmethanamine, molecular formula is C8H16N2. In a Patent£¬once mentioned of 67496-78-0

BRIDGED, BICYCLIC HETEROCYCLIC OR SPIRO BICYCLIC HETEROCYCLIC DERIVATIVES OF PYRAZOLO[1,5-A]PYRIMIDINES, METHODS FOR PREPARATION AND USES THEREOF

Compounds of formula A: Formula (1) pharmaceutically acceptable salts thereof are described, which selectively inhibit Raf kinase activity and are useful for treating disorders mediated by Raf kinases.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H18N | ChemSpider

An article , which mentions 827-61-2, molecular formula is C9H15NO2. The compound – Quinuclidin-3-yl acetate played an important role in people’s production and life., Safety of Quinuclidin-3-yl acetate

Boronic acid adducts of rhenium dioxime and technetium-99m dioxime complexes containing a biochemically active group

Boronic acid adducts of technetium-99m and radioactive rhenium dioxime complexes, each of which include biochemically active groups, are useful as diagnostic and therapeutic agents, respectively.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H41N | ChemSpider