Day: March 5, 2021

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BENZIMIDAZOLE COMPOUNDS

This invention relates to compounds useful in treating 5-HT. sub.4 and/or 5-HT 3 mediated conditions of the formula STR1 or a pharmaceutically acceptable salt thereof wherein R 1 and R 2 are independently selected from the group consisting of hydrogen, alkoxy, halogen, amino, monoalkylamino, dialkylamino, acylamino and alkylsulfonylamino; R 3 is selected from the group consisting of H, alkyl and cycloalkyl; X is NH or O; and Z is selected from the group consisting of STR2 pharmaceutical compositions including the compounds and a method for treating serotonin mediated conditions with the compositions which act as 5-HT 4 agonists or antagonists and/or 5-HT. sub.3 antagonists.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H14N | ChemSpider

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M1 receptor agonist activity is not a requirement for muscarinic antinociception.

The analgesic effects of a series of muscarinic agonists were investigated by use of the mouse acetic acid writhing, grid-shock, hot-plate and tail-flick tests. The compounds tested were oxotremorine, pilocarpine, arecoline, aceclidine, RS86 and four 3-3(substituted-1,2,5-thiadiazol-4-yl)-1,2,5,6-tetrahy-dro-1 -methyl pyridines (substituted TZTP), these being propoxy-TZTP, 3-Cl-propylthio-TZTP, xanomeline (hexyloxy-TZTP) and hexylthio-TZTP. These agonists were also assayed for their ability to displace [3H]oxotremorine-M and [3H]pirenz-epine binding and for their functional selectivity at pharmaco-logic M1, M2 and M3 receptors. These compounds all produced dose-dependent antinociceptive effects in all of the mouse analgesia tests. The effects of oxotremorine in the writhing test were fully antagonized by the muscarinic antagonist scopolamine (0.1 mg/kg), but only partially antagonized by methsco-polamine (10 mg/kg) and unaffected by the opioid antagonist naltrexone. 3-Cl-propylthio-TZTP and propoxy-TZTP had virtually no effect at the M1 receptor subtype as measured by the human m1 clone expressed in baby hamster kidney cells or the rabbit vas deferens assay. These compounds, however, were more potent in the analgesia tests than the selective M1 agonists xanomeline and hexylthio-TZTP. These data suggest that muscarinic analgesia is mediated by central muscarinic receptors. However, activity at the M1 receptor subtype is not a requirement for antinociceptive activity.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H84N | ChemSpider

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The cholinergic system and spatial learning

Acetlylcholine (ACh) in the central nervous system is critical for a multitude of functions. Here, we concentrate on declarative memory in humans, and its equivalent episodic-like memory in rodents and highlight current understanding of cholinergic system in these processes. Spatial memory formation represents a simple form of episodic-like memory in rodents that engages the basal forebrain cholinergic system and its target structures. In these, ACh exerts numerous functions. During spatial acquisition learning, ACh efflux into the extracellular space is immediate in hippocampus and cortex; during consolidation of spatial reference memory, ACh levels are low. These requirements explain why ACh receptor blockade during acquisition blocks memory formation, and it is also consonant with the notion that an unspecific enhancement of cholinergic activity during consolidation is detrimental to memory formation. Working and short-term memory for spatial locations engages the nucleus basalis – prefrontal cortex ACh system. ACh activity is trial related and maintained for some time post-training. Striatal cholinergic activity is increased during stimulus-response learning and behavioural flexibility (reversal learning, extinction) providing a possible switch between different behavioural strategies. At present, there is no clear difference between muscarinic and nicotinergic systems with respect to spatial learning. Antagonists of the respective receptors impair memory formation, agonists can reverse these deficits or may, under specific conditions act more like a general cognitive enhancers by way of improving attention. Data reviewed here do not provide conclusive evidence for muscarinic or nicotinic receptors presenting as novel therapeutic targets, and there is no clear indication for ACh derived novel biomarkers for translational medicine.Unresolved and contradictory results are highlighted and discussed.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H52N | ChemSpider

Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 123536-14-1, Name is (R)-3-Aminoquinuclidine dihydrochloride. In a document type is Article, introducing its new discovery., Product Details of 123536-14-15

CEPHEM DERIVATIVE HAVING CATECHOL GROUP

A compound represented by formula (I) or a pharmaceutically acceptable salt thereof wherein A represents a group represented by one of formulae (i)-(iii); B represents a group represented by formula (v) or (vi); and E represents a substituted or unsubstituted heterocyclic group having a cationic nitrogen atom.

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Reference£º
Quinuclidine – Wikipedia,
Quinuclidine | C7H24N | ChemSpider

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5-HT3 RECEPTOR MODULATORS, METHODS OF MAKING, AND USE THEREOF

Novel 5-HT3 receptor modulators are disclosed. These compounds are used in the treatment of various disorders, including chemotherapy-induced nausea and vomiting, post-operative nausea and vomiting, and irritable bowel syndrome. Methods of making these compounds are also described in the present invention.

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Reference£º
Quinuclidine – Wikipedia,
Quinuclidine | C7H107N | ChemSpider

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. HPLC of Formula: C9H15NO2, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 827-61-2, name is Quinuclidin-3-yl acetate. In an article£¬Which mentioned a new discovery about 827-61-2

COMPOSITIONS AND METHODS FOR THE TREATMENT OF PRESBYOPIA

The invention provides compositions and methods for the treatment of presbyopia. The compositions preferably use aceclidine separate or together with a cycloplegic agent and/or with a nonionic surfactant and viscosity enhancer, and or with low concentrations of a selective a-2 adrenergic receptor agonist.

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Reference£º
Quinuclidine – Wikipedia,
Quinuclidine | C7H39N | ChemSpider

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THIAZOLYL COMPOUNDS USEFUL AS KINASE INHIBITORS

The invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof. The formula I thiazolyl compounds inhibit tyrosine kinase activity thereby making them useful as anticancer agents and for the treatment of Alzheimer’s disease

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Quinuclidine – Wikipedia,
Quinuclidine | C7H20N | ChemSpider

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

Chiral polyoxometalate-based materials: From design syntheses to functional applications

Owing to the potential applications in catalysis, analytical chemistry, ion exchange, magnetism, biological chemistry and medicine, tremendous effort has been dedicated to exploring polyoxometalate (POM) chemistry. Chiral POM-based materials are particularly attractive due to the combination of the advantage of POMs with the importance of chirality. Nearly 100 chiral POM-based compounds were reported, which were mainly used as asymmetric catalysts, molecular recognition and nonlinear optical materials. In addition, the chirality within POM systems has attracted the attention of theoretical chemists and research was carried out to explore the origin of chirality by density functional theoretical methods. In this review, we summarize the developments of chiral POM-based materials, including their synthetic strategies, calculations on the origin of chirality and the relevant applications.

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Reference£º
Quinuclidine – Wikipedia,
Quinuclidine | C7H144N | ChemSpider

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SUBSTITUTED SPIRO-AMIDE COMPOUNDS

Substituted spiro-amide compounds corresponding to formula 1 in which R5 through R8, D, X, Y and Z have defined meanings, processes for preparing such spiro-amide compounds, pharmaceutical compositions containing such compounds, and methods of using such spiro-amide compounds for treating and/or inhibiting disorders or disease states mediated at least in part by the bradykinin 1 receptor

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Reference£º
Quinuclidine – Wikipedia,
Quinuclidine | C7H129N | ChemSpider

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

Pharmacological profile of zacopride and new quaternarized fluorobenzamide analogues on mammalian alpha7 nicotinic acetylcholine receptor

Abstract From quaternarization of quinuclidine enantiomers of 2-fluoro benzamide LMA10203 in dichloromethane, the corresponding N-chloromethyl derivatives LMA10227 and LMA10228 were obtained. Here, we compared the agonist action of known zacopride and its 2-fluoro benzamide analogues, LMA10203, LMA10227 and LMA10228 against mammalian homomeric alpha7 nicotinic acetylcholine receptor expressed in Xenopus oocytes. We found that LMA10203 was a partial agonist of alpha7 receptor with a pEC50 value of 4.25 ¡À 0.06 muM whereas LMA10227 and LMA10228 were poorly active on alpha7 homomeric nicotinic receptor. LMA10227 and LMA10228 were identified as antagonists of acetylcholine-induced currents with IC50 values of 28.4 muM and 39.3 muM whereas LMA10203 and zacopride possessed IC50 values of 8.07 muM and 7.04 muM, respectively. Moreover, despite their IC50 values, LMA10227 was the most potent inhibitor of nicotine-induced current amplitudes (65.7 ¡À 2.1% inhibition). LMA10203 and LMA10228 had the same inhibitory effects (26.5 ¡À 7.5% and 33.2 ¡À 4.1%, respectively), whereas zacopride had no significant inhibitory effect (4.37 ¡À 4%) on nicotine-induced responses. Our results revealed different pharmacological properties between the four compounds on acetylcholine and nicotine currents. The mode of action of benzamide compounds may need to be reinterpreted with respect to the potential role of alpha7 receptor.

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Reference£º
Quinuclidine – Wikipedia,
Quinuclidine | C7H137N | ChemSpider