Some scientific research about (R)-3-Aminoquinuclidine dihydrochloride

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Discovery of fused heterocyclic carboxamide derivatives as novel alpha7-nAChR agonists: Synthesis, preliminary SAR and biological evaluation

The alpha7 nicotinic acetylcholine receptor (alpha7 nAChR) has emerged as a promising therapeutic target for schizophrenia. In our previous work, a novel series of alpha7-nAChR agonists bearing scaffold of indolizine were discovered. To explore the effect of aromaticity on the activity and find more active agents, herein, fused heterocyclic carboxamide derivatives were designed and synthesized in this study. Based on the evaluation by two-electrode voltage clamp in Xenopus oocytes, 27 of the synthesized compounds showed obvious agonism of alpha7 nAChR. Particularly, compounds 10a and 10e showed significantly higher Emax than EVP-6124. The result illustrated the importance of aromaticity to the activity of agonism. Compound 10a, which showed EC50 of 1.88 muM and Emax of 72.4%, was further characterized comprehensively, including co-application with type II positive allosteric modulator PNU-120596, selectivity with other closely related ligand-gated ion channel, etc. The results showed that 10a showed moderate selectivity over other subtypes such as alpha4beta2 and alpha3beta4 nAChR. 10a evoked alpha7-like currents that were inhibited by MLA and enhanced in the presence of the alpha7 PAM PNU-120596. The analysis of binding mode and understanding of structure-activity relationship provided insights to develop more potent novel alpha7-nAChR agonists.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H158N | ChemSpider

Top Picks: new discover of Quinuclidin-3-yl acetate

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Classics in Chemical Neuroscience: Xanomeline

Xanomeline (1) is an orthosteric muscarinic acetylcholine receptor (mAChR) agonist, often referred to as M1/M4-preferring, that received widespread attention for its clinical efficacy in schizophrenia and Alzheimer?s disease (AD) patients. Despite the compound?s promising initial clinical results, dose-limiting side effects limited further clinical development. While xanomeline, and related orthosteric muscarinic agonists, have yet to receive approval from the FDA for the treatment of these CNS disorders, interest in the compound?s unique M1/M4-preferring mechanism of action is ongoing in the field of chemical neuroscience. Specifically, the promising cognitive and behavioral effects of xanomeline in both schizophrenia and AD have spurred a renewed interest in the development of safer muscarinic ligands with improved subtype selectivity for either M1 or M4. This Review will address xanomeline?s overall importance in the field of neuroscience, with a specific focus on its chemical structure and synthesis, pharmacology, drug metabolism and pharmacokinetics (DMPK), and adverse effects.

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Quinuclidine | C7H46N | ChemSpider

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In heterogeneous catalysis, the catalyst is in a different phase from the reactants. HPLC of Formula: C10H17NO3, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 5291-32-7, name is APR-246. In an article£¬Which mentioned a new discovery about 5291-32-7

Efficacy of glutathione inhibitors for the treatment of ARID1A-deficient diffuse-type gastric cancers

ARID1A, a subunit of the SWI/SNF chromatin remodeling complex, increases the intracellular levels of glutathione (GSH) by upregulating solute carrier family 7 member 11 (SLC7A11). Diffuse-type gastric cancer is an aggressive tumor that is frequently associated with ARID1A deficiency. Here, we investigated the efficacy of GSH inhibition for the treatment of diffuse-type gastric cancer with ARID1A deficiency using ARID1A-proficient or -deficient patient-derived cells (PDCs). ARID1A-deficient PDCs were selectively sensitive to the GSH inhibitor APR-246, the GCLC inhibitor buthionine sulfoximine, and the SLC7A11 inhibitor erastin. Expression of SLC7A11, which is required for incorporation of cystine, and the basal level of GSH were lower in ARID1A-deficient than in ARID1A-proficient PDCs. Treatment with APR-246 decreased intracellular GSH levels, leading to the excessive production of reactive oxygen species (ROS), and these phenotypes are suppressed by supply of cystine and GSH compensators. Taken together, vulnerability of ARID1A-deficient gastric cancer cells to GSH inhibition is caused by decreased GSH synthesis due to diminished SLC7A11 expression. The present results suggest that GSH inhibition is a promising strategy for the treatment of diffuse-type gastric cancers with ARID1A deficiency.

Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. I hope my blog about is helpful to your research. HPLC of Formula: C10H17NO3

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Quinuclidine | C7H168N | ChemSpider

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67496-78-0, Name is Quinuclidin-4-ylmethanamine, belongs to quinuclidine compound, is a common compound. SDS of cas: 67496-78-0In an article, once mentioned the new application about 67496-78-0.

CEPHEM COMPOUND HAVING PSEUDO-CATECHOL GROUP

A compound of the formula: wherein X is ?N?, ?CH?, or the like; W is ?CH2? or the like; U is ?S? or the like; R1 and R2 are each independently hydrogen, halogen, optionally substituted lower alkyl, or the like; Q is a single bond or the like; R3 is hydrogen or the like; Ring A is a 6-membered aromatic heterocyclic group having 1-3 nitrogen atoms; each R4 is independently hydrogen, halogen, or the like; m is an integer from 0 to 2; G is ?C(?O)? or the like; D is a single bond, ?NH?, or the like; and E is a cyclic quaternary ammonium group, or an ester, a protected compound at the amino on the ring in the 7-side chain, a pharmaceutically acceptable salt, or a solvate thereof.

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Quinuclidine | C7H25N | ChemSpider

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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 Patent£¬once mentioned of 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 comprise aceclidine, oxymetazoline, a cryoprotectant and a non-ionic surfactant. The compositions optionally contain a viscosity enhancer.

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Quinuclidine | C7H37N | ChemSpider

Final Thoughts on Chemistry for (R)-3-Aminoquinuclidine dihydrochloride

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Discovery of potent positive allosteric modulators of the alpha3beta2 nicotinic acetylcholine receptor by a chemical space walk in chembl

While a plethora of ligands are known for the well studied alpha7 and alpha4beta2 nicotinic acetylcholine receptor (nAChR), only very few ligands address the related alpha3beta2 nAChR expressed in the central nervous system and at the neuromuscular junction. Starting with the public database ChEMBL organized in the chemical space of Molecular Quantum Numbers (MQN, a series of 42 integer value descriptors of molecular structure), a visual survey of nearest neighbors of the alpha7 nAChR partial agonist N-(3R)-1- azabicyclo[2.2.2]oct-3-yl-4-chlorobenzamide (PNU-282,987) pointed to N-(2-halobenzyl)-3-aminoquinuclidines as possible nAChR modulators. This simple “chemical space walk” was performed using a web-browser available at www.gdb.unibe.ch. Electrophysiological recordings revealed that these ligands represent a new and to date most potent class of positive allosteric modulators (PAMs) of the alpha3beta2 nAChR, which also exert significant effects in vivo. The present discovery highlights the value of surveying chemical space neighbors of known drugs within public databases to uncover new pharmacology.

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Quinuclidine | C7H138N | ChemSpider

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NOVEL BENZAMIDE DERIVATIVE AND USE THEREOF

Disclosed are a novel benzamide derivative and pharmaceutical use thereof, and more particularly, a novel benzamide derivative having a structure of Formula 1 or pharmaceutically acceptable salts thereof, and a composition for prevention or treatment of pain or itching including the above material. The novel benzamide derivative and pharmaceutically acceptable salt thereof according to the present invention exhibit excellent pain-suppressive effect and, in particular, pain-suppressive effect in not only a neuropathic animal model but also other models such as a formalin model, and therefore, may be used in suppression of different pains such as nociceptive pain, chronic pain, etc. Further, since it was demonstrated that the present invention displays anti-pruritic efficacy even in an itching model, to which a mechanism and treatment concept established with respect to pain is applied, the present invention may also be effectively used in radical treatment of atopic dermatitis by applying the inventive product to an anti-pruritic composition in order to suppress an initial itching stage and treat symptoms thereof, thus preventing skin damage or inflammation after the scratching stage.

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Quinuclidine | C7H118N | ChemSpider

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N-AZABICYCLO-AMIDE DERIVATIVES

Compounds of the general formula I wherein A represents: D represents oxygen, or sulfur and R1, R2 and R3 are as defined in the specification, enantiomers thereof, pharmaceutically-acceptable salts thereof, processes for preparing them, pharmaceutical compositions containing them and their use in therapy, especially in the treatment or prophylaxis of psychotic disorders and intellectual impairment disorders

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Quinuclidine – Wikipedia,
Quinuclidine | C7H123N | ChemSpider

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PROCESS FOR THE PREPARATION OF ENCENICLINE FROM 7-CHLORO-BENZO[B]THIOPHENE-2-CARBOXYLIC ACID CHLORIDE AND (R)-QUINUCLIDIN-3-AMINE IN THE PRESENCE OF IMIDAZOLE

The present invention relates to a process for the preparation of an amide from a carboxylic acid chloride and an organic molecule comprising both a primary amine group and a tertiary amine group, wherein the nitrogen atom of the tertiary amine group is comprised in a non-aromatic heterocycle and wherein the amide bond forms selectively with the primary amine group, comprising the step of reacting the carboxylic acid chloride with an organic molecule comprising both the primary amine group and the tertiary amine group, in the presence of imidazole. This is particularly useful in the preparation of amides from quinuclidin-3-amine, such as for the preparation of encenicline ((R) -7-chloro-N-(quinuclidin-3-yl)benzo[b]thiophene-2-carboxamide) from 7-chloro-benzo[b]thiophene-2-carboxylic acid chloride and (R)- quinuclidin-3-amine in the presence of imidazole. Encenicline is a nicotinic acetylcholine receptor agonist useful as a neuromodulator for the treatment of e.g. cognitive impairment, schizophrenia and Alzheimer’s disease.

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Quinuclidine | C7H116N | ChemSpider

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Synthetic Methods Driven by the Photoactivity of Electron Donor-Acceptor Complexes

The association of an electron-rich substrate with an electron-accepting molecule can generate a new molecular aggregate in the ground state, called an electron donor-acceptor (EDA) complex. Even when the two precursors do not absorb visible light, the resulting EDA complex often does. In 1952, Mulliken proposed a quantum-mechanical theory to rationalize the formation of such colored EDA complexes. However, and besides a few pioneering studies in the 20th century, it is only in the past few years that the EDA complex photochemistry has been recognized as a powerful strategy for expanding the potential of visible-light-driven radical synthetic chemistry. Here, we explain why this photochemical synthetic approach was overlooked for so long. We critically discuss the historical context, scientific reasons, serendipitous observations, and landmark discoveries that were essential for progress in the field. We also outline future directions and identify the key advances that are needed to fully exploit the potential of the EDA complex photochemistry.

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Quinuclidine – Wikipedia,
Quinuclidine | C7H51N | ChemSpider