Heterocyclic Building Blocks-Quinuclidine

One of the major reasons is to use measurements of the macroscopic properties of a system, the rate of change in the concentration of reactants or products with time, to discover the sequence of events that occur at the molecular level. 22766-68-3, introduce a new downstream synthesis route., 22766-68-322766-68-3

1-azabicyclo[2.2.2]oct-4-yl(di-2-naphthalenyl)methanol A solution of (2-naphthalenyl)magnesiumbromide (0.5 M in THF, 6.5 mL, 3.25 mmol) was chilled down to 0 C. under Ar. Ethyl 1-azabicyclo[2.2.2]octane-4-carboxylate (0.1597 g, 0.871 mmol) in THF (4 mL) was slowly added to the reaction mixture at 0 C. over 20 min. The reaction was allowed to warm up to room temperature and then heated at 60 C. for 16 h. The reaction was chilled in an ice bath, quenched with saturated NH4Cl, and concentrated under vacuum. The resulting residue was treated with H2O and extracted with EtOAc. The combined organic layers were dried with MgSO4, filtered, and concentrated under vacuum to yield the desired product (0.265 g, 77.3%). EI-MS m/z 394(M+H+) Rt (1.90 min).

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Reference£º
Patent; Laine, Damane I.; Palovich, Michael R.; McCleland, Brent W.; Neipp, Christopher E.; Thomas, Sonia M.; US2007/185155; (2007); A1;,
Quinuclidine – Wikipedia
Quinuclidine | C7H13N | ChemSpider

One of the major reasons is to use measurements of the macroscopic properties of a system, the rate of change in the concentration of reactants or products with time, to discover the sequence of events that occur at the molecular level. 22766-68-3, introduce a new downstream synthesis route., 22766-68-322766-68-3

1-azabicyclo[2.2.2]oct-4-yl]bis(4-fluorophenyl)]methanol A solution of 4-fluorophenylmagnesiumbromide (1.0 M in THF, 4.4 mL, 4.4 mmol) was chilled down to 0 C. under Ar. Ethyl 1-azabicyclo[2.2.2]octane-4-carboxylate (0.1973 g, 1.08 mmol) in THF (4 mL) was slowly added to the reaction mixture at 0 C. over 20 min. The reaction was allowed to warm up to room temperature and then heated at 60 C. for 16 h. The reaction was chilled in an ice bath, quenched with saturated NH4Cl, and concentrated under vacuum. The resulting residue was treated with H2O and extracted with EtOAc. The combined organic layers were dried with MgSO4, filtered, and concentrated under vacuum to yield the desired product (0.3152 g, 88.9%). EI-MS m/z 330(M+H+) Rt (1.65 min).

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Reference£º
Patent; Laine, Damane I.; Palovich, Michael R.; McCleland, Brent W.; Neipp, Christopher E.; Thomas, Sonia M.; US2007/185155; (2007); A1;,
Quinuclidine – Wikipedia
Quinuclidine | C7H13N | ChemSpider

A balanced equation for a chemical reaction indicates what is reacting and what is produced, but it reveals nothing about how the reaction actually takes place., 22766-68-3. The reaction mechanism is the process, or pathway, by which a reaction occurs.22766-68-3. An updated downstream synthesis route of 22766-68-3 as follows.

To a solution of ethyl 1-aza-bicyclo[2.2.2]octane-4-carboxylate (PCT2005104745) (9.610 g, 52.44 mmol) in THF (480 ml) at -780C was added borane-THF complex (73.41 ml,73.41 mmol) and the resulting solution was stirred at this temperature for 3.5 h. The reaction was quenched with slow addition of H2O (50 ml), warmed to RT, and allowed to stir for 45 min. The solution was diluted with EtOAc (100 ml), washed with brine (15 ml), extracted with EtOAc (3 x 50 ml), dried (Na2SO4) and evaporated. The crude product was purified on a CombiFlash companion using 0-50% EtOAc in cyclohexane as eluent to give a bright yellow solid.Yield: 7.236 g (70%)1 H NMR (400 MHz, CDCI3) delta = 4.15 (q, 2H), 3.07 (t, 4H)1 1.96 (t, 4H), 1.26 (t, 3H) ppm.

This molecular description is the mechanism of the reaction; it describes how individual atoms, ions, or molecules interact to form particular products.If you are interested, you can also browse other articles of Ethyl quinuclidine-4-carboxylate, , We look forward to the emergence of more reaction modes in the future.

Reference£º
Patent; ARGENTA DISCOVERY LIMITED; WO2009/60206; (2009); A1;,
Quinuclidine – Wikipedia
Quinuclidine | C7H13N | ChemSpider

A balanced equation for a chemical reaction indicates what is reacting and what is produced, but it reveals nothing about how the reaction actually takes place., 40117-63-3. The reaction mechanism is the process, or pathway, by which a reaction occurs.40117-63-3. An updated downstream synthesis route of 40117-63-3 as follows.

Step 5: (S)-4-((1-(5-(2-methoxyquinolin-1-ium-3-yl)-JH-imidazol-2-yl)- 7-(methylamino)- 7-oxoheptyl)carbamoyl)quinuclidin-1-ium mono L-tartrate salt (A5) A solution of 4-carboxyquinuclidin-1-ium chlorhydrate (1.3 eq.) in DMF (0.2 M) was treated with TBTU (1.3 eq.) and NMM (2.6 eq.). The reaction mixture was stirred at room temperature for 10 minutes and then added to a solution of A4 in DMF (0.2 M). The reaction was stirred at RT for 2 h and subsequently was purified by RP-HPLC (Acetonitrile/H20 + 0.1 % TFA). Theproduct was obtained as TFA salt which was partitioned between DCM and sat. aq. NaHCO3. The organic phase was separated, dried over Na2504 and concentrated under reduced pressure. The resulting syrup was dissolved in acetonitrile/H20 (2:3) and treated with L-tartaric acid (1 eq.). The resulting solution was lyophilized to obtain the title compound. 1H-NMR (400 MHz, 300 K, DMSO-d6) oe 8.73 (br s, 1H), 7.94 (t, 2H, J 9.6 Hz), 7.76 (d, 1H, J 8.0 Hz), 7.67 (br s,1H), 7.60 (m, 2H), 7.42 (t, 1H, J8.0 Hz), 5.02 (m, 1H), 4.13 (s, 3H), 3.93 (s, 2H), 3.18 (t, 6H, J7.2 Hz), 2.54 (d, 3H, J4.4 Hz), 2.05-1.91 (m, 8H), 1.51-1.23 (m, 8H). MS (ESj C29H38N603:519 (M+H).

This molecular description is the mechanism of the reaction; it describes how individual atoms, ions, or molecules interact to form particular products.If you are interested, you can also browse other articles of Quinuclidine-4-carboxylic acid hydrochloride, , We look forward to the emergence of more reaction modes in the future.

Reference£º
Patent; IRBM SCIENCE PARK S.P.A.; C.N.C.C.S. SCARL COLLEZIONE NAZIONALE DEI COMPOSTI CHIMICI E CENTRO SCREENING; ALTAMURA, Sergio; BIANCOFIORE, Ilaria; BRESCIANI, Alberto; FERRIGNO, Federica; HARPER, Steven; LAUFER, Ralph; ONTORIA ONTORIA, Jesus Maria; MALANCONA, Savina; MONTEAGUDO, Edith; NIZI, Emanuela; ORSALE, Maria Vittoria; PONZI, Simona; PAONESSA, Giacomo; SUMMA, Vincenzo; VENEZIANO, Maria; WO2014/67985; (2014); A1;,
Quinuclidine – Wikipedia
Quinuclidine | C7H13N | ChemSpider

One of the major reasons is to use measurements of the macroscopic properties of a system, the rate of change in the concentration of reactants or products with time, to discover the sequence of events that occur at the molecular level. 22766-68-3, introduce a new downstream synthesis route., 22766-68-322766-68-3

1-Azabicyclo[2.2.2]oct-4-yl(diphenyl)methanol A solution of phenyllithium (1.5-1.7 M in 70 cyclohexane/30 ether, 20.0 mL, 32 mmol) was chilled down to -30 C. under Ar. Ethyl 1-azabicyclo[2.2.2]octane-4-carboxylate (1.51 g, 8.23 mmol) in THF (20 mL) was slowly added to the reaction mixture at -30 C. over 25 min. The reaction was allowed to warm up to room temperature over 16 h. The reaction was quenched with H2O and then evaporated to dryness under vacuum. H2O and EtOAc were added, causing a white solid to crash out. This solid was filtered off, to give the title compound (0.79 g). The aqueous phase was further extracted with EtOAc, the combined organic layers were dried over MgSO4, filtered, and concentrated under vacuum. The crude product was treated with EtOAc and hexane and filtered to yield more of the title compound (0.67 g). Total yield (1.46 g, 60.7%). EI-MS m/z 294(M+H+) Rt (1.37 min).

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Reference£º
Patent; Laine, Damane I.; Palovich, Michael R.; McCleland, Brent W.; Neipp, Christopher E.; Thomas, Sonia M.; US2007/185155; (2007); A1;,
Quinuclidine – Wikipedia
Quinuclidine | C7H13N | ChemSpider

The molecularity of an elementary reaction is the number of molecules that collide during that step in the mechanism., 22766-68-322766-68-3, If there is only a single reactant molecule in an elementary reaction, that step is designated as unimolecular. 22766-68-3, name is Ethyl quinuclidine-4-carboxylate. A new synthetic method of this compound is introduced below.

Example 13: Preparation of 4-[cyano(di-2-thienyl)methyl]-1-[3- (DhenVIoxVlDroDVIl-1-azoniabicvclo [2.2.210ctane bromide;. 1-Azabicyclof2. 2. 2 Joct-4-yl(di-2-thienyl)methanol; A solution of 2-thienyllithium (1.0 M in THF, 13.0 mL, 13 mmol) was chilled down to -30 C under Ar. Ethyl 1-azabicyclo[2.2.2]octane-4-carboxylate (0.77 g, 4.20 mmol) in THF (12 mL) was slowly added to the 2-thienyllithium at-30 C over 40 min. The reaction was allowed to warm up to room temperature for overnight. The reaction was quenched with H20 and then diluted with EtOAC, hexane and DCM causing a solid to crash out of solution. The solid was filtered off, resulting in the desired compound (0.9132 g, 71.3%). EI-MS m/z 306 (M+) Rt (1.33 min).

A chemical reaction often occurs in steps, although it may not always be obvious to an observer. Thank you very much for taking the time to read this article. If you are also interested in other aspects of Ethyl quinuclidine-4-carboxylate,, you can also browse my other articles. Thank you very much for taking the time to read this article.

Reference£º
Patent; GLAXO GROUP LIMITED; WO2005/112644; (2005); A2;,
Quinuclidine – Wikipedia
Quinuclidine | C7H13N | ChemSpider

One of the major reasons is to use measurements of the macroscopic properties of a system, the rate of change in the concentration of reactants or products with time, to discover the sequence of events that occur at the molecular level. 40117-63-3, introduce a new downstream synthesis route., 40117-63-340117-63-3

Step 4. Quinuclidin-4-ylcarbonyl chloride hydrochloride Quinuclidine-4-carboxylic acid hydrochloride (0.192 g, 0.001 mole) was suspended in dichloromethane (5 ml) and dimethylformamide (1 drop) and oxalyl chloride (0.436 ml. 0.635 g, 0.005 mole) were added. The resulting suspension was heated to reflux under an atmosphere of argon for six hours. Following concentration of the suspension in vacuo the residue was suspended in dichloromethane, concentrated in vacuo and finally dried in vacuo to give the title compound as a pale brown solid.

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Reference£º
Patent; SmithKline Beecham p.l.c.; US6281226; (2001); B1;,
Quinuclidine – Wikipedia
Quinuclidine | C7H13N | ChemSpider

22766-68-3, One of the major reasons is to use measurements of the macroscopic properties of a system, the rate of change in the concentration of reactants or products with time, to discover the sequence of events that occur at the molecular level. 22766-68-3, introduce a new downstream synthesis route.

1-azabicyclo[2.2.2]oct-4-yl[bis(3-methylphenyl)]methanol A solution of 3-methylphenylmagnesiumbromide (1.0 M in THF, 3.3 mL, 3.3 mmol) was chilled down to 0 C. under Ar. Ethyl 1-azabicyclo[2.2.2]octane-4-carboxylate (0.1484 g, 0.810 mmol) in THF (4 mL) was slowly added to the reaction mixture at 0 C. over 20 min. The reaction was allowed to warm up to room temperature and then heated at 60 C. for 16 h. The reaction was chilled in an ice bath, quenched with saturated NH4Cl, and concentrated under vacuum. The resulting residue was treated with H2O and extracted with EtOAc. The combined organic layers were dried with MgSO4, filtered, and concentrated under vacuum to yield the desired product (0.1806 g, 69.4%). EI-MS m/z 322(M+H+) Rt (1.54 min).

This molecular description is the mechanism of the reaction; it describes how individual atoms, ions, or molecules interact to form particular products.If you are interested, you can also browse other articles of Ethyl quinuclidine-4-carboxylate, , We look forward to the emergence of more reaction modes in the future.

Reference£º
Patent; Laine, Damane I.; Palovich, Michael R.; McCleland, Brent W.; Neipp, Christopher E.; Thomas, Sonia M.; US2007/185155; (2007); A1;,
Quinuclidine – Wikipedia
Quinuclidine | C7H13N | ChemSpider

Electric Literature of 123536-14-1, 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.123536-14-1, Name is (R)-3-Aminoquinuclidine dihydrochloride, molecular formula is C7H16Cl2N2. In a article£¬once mentioned of 123536-14-1

Intriguing case of Pseudo-isomorphism between chiral and racemic crystals of rac- and (S)/(R)2-(1,8-Naphthalimido)-2-quinuclidin-3-yl, and their reactivity toward I2 and IBr

Condensation reactions between 1,8-naphthalic anhydride and racemic 3-aminoquinuclidine or chiral (S) or (R)-(-)-3-aminoquinuclidine allowed preparation of three novel racemic and enantiopure aza-donor ligands, namely NMiABCO (1), (S)NMiABCO (2a), and (R)NMiABCO (2b). Racemic NMiABCO (1) crystallizes in the monoclinic space group P21/c, Z? = 1, while enantiopure (S)NMiABCO (2a) and (R)NMiABCO (2b) crystallize in the chiral monoclinic space group P21, Z? = 2, and show significant pseudocentrosymmetry, being pseudo-isomorphous with racemic NMiABCO (1). Reactivity of both racemic and enantiopure NMiABCO toward iodine and interhalogen IBr was also investigated as a way to remove the pseudoisomorphism, yielding the three new molecular adducts [NMiABCO¡¤I2] (3), [(S)NMiABCO¡¤I2]¡¤xCHCl3 (4), [(S)NMiABCO¡¤IBr]¡¤xCHCl3 (5) and the molecular salt [HNMiABCO][IBr2] (6). Synthesis of complexes 3 and 4 was also carried out in the solid state via kneading and vapor digestion techniques. All compounds were fully characterized via single crystal and powder X-ray diffraction and Raman spectroscopy.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Electric Literature of 123536-14-1, you can also check out more blogs aboutElectric Literature of 123536-14-1

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Quinuclidine – Wikipedia,
Quinuclidine | C7H142N | ChemSpider

Related Products 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

Mutant p53 tunes the NRF2-dependent antioxidant response to support survival of cancer cells

NRF2 (NFE2L2) is one of the main regulators of the antioxidant response of the cell. Here we show that in cancer cells NRF2 targets are selectively upregulated or repressed through a mutant p53-dependent mechanism. Mechanistically, mutant p53 interacts with NRF2, increases its nuclear presence and resides with NRF2 on selected ARE containing gene promoters activating the transcription of a specific set of genes while leading to the transcriptional repression of others. We show that thioredoxin (TXN) is a mutant p53-activated NRF2 target with pro-survival and pro-migratory functions in breast cancer cells under oxidative stress, while heme oxygenase 1 (HMOX1) is a mutant p53-repressed target displaying opposite effects. A gene signature of NRF2 targets activated by mutant p53 shows a significant association with bad overall prognosis and with mutant p53 status in breast cancer patients. Concomitant inhibition of thioredoxin system with Auranofin and of mutant p53 with APR-246 synergizes in killing cancer cells expressing p53 gain-of-function mutants.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Related Products of 5291-32-7, you can also check out more blogs aboutRelated Products of 5291-32-7

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Quinuclidine – Wikipedia,
Quinuclidine | C7H172N | ChemSpider