Category: piperidines

Synthetic Route of 3056-33-5, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 3056-33-5, Name is N2,9-Diacetylguanine, SMILES is CC(=O)NC1=NC2=C(N=CN2C(C)=O)C(=O)N1, belongs to piperidines compound. In a article, author is Sanam, introduce new discover of the category.

Morpholinium and Piperidinium Based Deep Eutectic Solvents for Synthesis of Pyrazole-5-Carbonitriles, Indoles and Tetrazoles: Bulk Properties via Molecular Dynamics Simulations

Deep eutectic solvents (DES) have gained much popularity in the area of green synthetic chemistry, since they act as excellent alternative to traditional organic solvents for carrying out diverse organic reactions and transformations. Furthermore, they are thermally stable over a wide temperature range, they are non-volatile, inert and can be easily recovered and reused after carrying out reactions. In the present study, we have synthesized morpholine and piperidine based ionic liquids, and combined them with different hydrogen bond donors (urea, diethylene glycol (DEG), carboxylic acid, thiourea, ethanol and methanol) to produce different DES melts. These DES melts were then explored for their potential as catalyst/reaction media for carrying out different organic transformations for synthesis of molecules such as pyrazole-5-carbonitriles 5 a-d, Fisher Indoles 8 a-d and 1H-tetrazoles 10 a-b. In DES, the hydrogen bonded interactions between ionic liquids and hydrogen bond donors are known to be crucial for mediating their catalytic and synthetic efficiency, hence molecular dynamics simulations of these DES melts were carried out to investigate and study these effects.

Synthetic Route of 3056-33-5, One of the oldest and most widely used commercial enzyme inhibitors is aspirin, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 3056-33-5.

Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem

 

In an article, author is Huang, Huoming, once mentioned the application of 2873-29-2, Name is (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate, molecular formula is C12H16O7, molecular weight is 272.25, MDL number is MFCD00063253, category is piperidines. Now introduce a scientific discovery about this category, Application In Synthesis of (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate.

Design, Synthesis, and Structure-Activity Relationship Exploration of Alkyl/Phenylalkyl Piperidine Analogues as Novel Highly Potent and Selective mu Opioid Receptor Agonists

Pain was implicated in many diseases. Despite effectiveness to treat moderate to severe pain, opioid analgesics elicited many side effects, greatly limiting their prescription in clinics. Based on Ml, an active metabolite of tramadol, 3-((dimethylamino)methyl)-4-(3-hydroxyphenyl)piperidin-4-ol analogues were designed, synthesized, and evaluated in vitro. Among all the compounds tested, compound 23 was found to be a novel, highly selective, and potent MOR agonist (K-i (MOR) = 0.0034 nM, EC50 MOR = 0.68 nM, E-max = 206.5%; K-i (DOR) = 41.67 nM; K KOR = 7.9 nM). Structure-activity relationship exploration showed that the linker between the piperidine ring and the phenyl ring as well as substituent pattern of the phenyl ring played a pivotal role in binding affinity and selectivity. (3R, 4S)-23 (K-i (MOR )= 0.0021 +/- 0.0001 nM, EC50 (MOR) = 0.0013 +/- 0.0001 nM, E-max = 209.1 +/- 1.4%; K DoR = 18.4 +/- 0.7 nM, EC50 (DOR) = 74.5 +/- 2.8 nM, E-max= 267.1 +/- 1.4%; K-i (KOR) = 25.8 +/- 0.2 nM, EC50 (DOR) = 116.2 +/- 4.4 nM, E-max = 209.5 +/- 1.4%) had more potent activity for opioid receptors than its enantiomer (3S, 4R)-23 and was found to be a potent, highly selective MOR agonist with novel scaffold. High binding affinity and selectivity of (3R, 4S)-23 for MOR over KOR and DOR and its mechanism of activating MOR were proposed by docking and molecular dynamics simulations, respectively.

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Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem

 

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 388077-74-5, Name is 1-Boc-2-piperidinamide, molecular formula is C11H20N2O3. In an article, author is Dias Viegas, Flavia Pereira,once mentioned of 388077-74-5, Safety of 1-Boc-2-piperidinamide.

Design, synthesis and pharmacological evaluation of N-benzyl-piperidinyl-aryl-acylhydrazone derivatives as donepezil hybrids: Discovery of novel multi-target anti-alzheimer prototype drug candidates

A new series of sixteen multifunctional N-benzyl-piperidine-aryl-acylhydrazones hybrid derivatives was synthesized and evaluated for multi-target activities related to Alzheimer’s disease (AD). The molecular hybridization approach was based on the combination, in a single molecule, of the pharmacophoric N-benzyl-piperidine subunit of donepezil, the substituted hydroxy-piperidine fragment of the AChE inhibitor LASSBio-767, and an acylhydrazone linker, a privileged structure present in a number of synthetic aryl- and aryl-acylhydrazone derivatives with significant AChE and anti-inflammatory activities. Among them, compounds 4c, 4d, 4g and 4j presented the best AChE inhibitory activities, but only compounds 4c and 4g exhibited concurrent anti-inflammatory activity in vitro and in vivo, against amyloid beta oligomer (A beta O) induced neuroinflammation. Compound 4c also showed the best in vitro and in vivo neuroprotective effects against A beta O-induced neurodegeneration. In addition, compound 4c showed a similar binding mode to donepezil in both acetylated and free forms of AChE enzyme in molecular docking studies and did not show relevant toxic effects on in vitro and in vivo assays, with good predicted ADME parameters in silico. Overall, all these results highlighted compound 4c as a promising and innovative multi-target drug prototype candidate for AD treatment. (C) 2018 Elsevier Masson SAS. All rights reserved.

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Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem

 

Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 120-73-0, Name is Purine, SMILES is C12=NC=NC1=CNC=N2, belongs to piperidines compound. In a document, author is Kuzey, Nur Guven, introduce the new discover, HPLC of Formula: C5H4N4.

Mono- and dispirocyclotriphosphazenes containing 4-bromobenzyl pendant arm(s): Synthesis, spectroscopy, crystallography and biological activity studies

The N/N donor-type bromobenzyldiamines (1-3) were successively prepared by reduction of Schiff bases formed as a result of condensation reactions of 4-bromobenzaldehyde with aliphatic diamines. The Cl exchange reactions of hexachlorocyclotriphosphazene (HCCP; trimer; N3P3Cl6; 4) with the bidentate ligands (1-3) produced the new monospiro- (5-7) and dispirocyclotriphosphazenes (8-13) containing 4-bromo-benzyl pendant arm(s). The tetrachloro phosphazenes (5-7) were reacted with pyrrolidine, tetra-1,4-dioxa-8-azaspiro [4.5]decane (DASD) and piperidine to give the tetraamino substituted mono-spirophosphazenes (5a-7c). The spectral analyses of all the phosphazenes were made using appropriate spectroscopic methods; such as FTIR, H-1, C-13, P-31 NMR and ESI-MS. The molecular and crystal structures of 5, 6, 7 and 12 were also determined by X-ray crystallography. On the other hand, the antimicrobial activities of the phosphazenes were evaluated against G (-) and G (+) bacteria and fungi. Some of the tetraaminophosphazenes were found to be very active against several bacteria and fungi. Besides, the interactions of the cyclotriphosphazenes with plasmid DNA were investigated using agarose gel electrophoresis. (C) 2020 Elsevier B.V. All rights reserved.

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 120-73-0 is helpful to your research. HPLC of Formula: C5H4N4.

Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem

 

Synthetic Route of 388077-74-5, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 388077-74-5, Name is 1-Boc-2-piperidinamide, SMILES is O=C(C1N(C(OC(C)(C)C)=O)CCCC1)N, belongs to piperidines compound. In a article, author is Muzaffar, Saima, introduce new discover of the category.

Probing phenylcarbamoylazinane-1,2,4-triazole amides derivatives as lipoxygenase inhibitors along with cytotoxic, ADME and molecular docking studies

Hunting small molecules as anti-inflammatory agents/drugs is an expanding and successful approach to treat several inflammatory diseases such as cancer, asthma, arthritis, and psoriasis. Besides other methods, inflammatory diseases can be treated by lipoxygenase inhibitors, which have a profound influence on the development and progression of inflammation. In the present study, a series of new N-alkyl/aralky/aryl derivatives (7a-o) of 2-(4-phenyl-5-(1-phenylcarbamoyl)piperidine-4H-1,2,4-triazol-3-ylthio)acetamide was synthesized and screened for their inhibitory potential against the enzyme 15-lipoxygenase. The simple precursor ethyl piperidine-4-carboxylate (a) was successively converted into phenylcarbamoyl derivative (1), hydrazide (2), semicarbazide (3) and N-phenylated 5-(1-phenylcarbamoyl)piperidine-1,2,4-triazole (4), then in combination with electrophiles (6a-o) through further multistep synthesis, final products (7a-o) were generated. All the synthesized compounds were characterized by FTIR, H-1, C-13 NMR spectroscopy, EIMS, and HREIMS spectrometry. Almost all the synthesized compounds showed excellent inhibitory potential against the tested enzyme. Compounds 7c, 7f, 7d, and 7g displayed potent inhibitory potential (IC50 9.25 +/- 0.26 to 21.82 +/- 0.35 mu M), followed by the compounds 7n, 7h, 7e, 7a, 7b, 7l, and 7o with IC50 values in the range of 24.56 +/- 0.45 to 46.91 +/- 0.57 mu M. Compounds 7c, 7f, 7d exhibited 71.5 to 83.5% cellular viability by MTT assay compared with standard curcumin (76.9%) when assayed at 0.125 mM concentration. In silico ADME studies supported the drug-likeness of most of the molecules. In vitro inhibition studies were substantiated by molecular docking wherein the phenyl group attached to the triazole ring was making a pi-delta interaction with Leu607. This work reveals the possibility of a synthetic approach of compounds in relation to lipoxygenase inhibition as potential lead compounds in drug discovery.

Synthetic Route of 388077-74-5, 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 388077-74-5 is helpful to your research.

Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem

 

Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Podjed, Nina, once mentioned the application of 120-73-0, Name is Purine, molecular formula is C5H4N4, molecular weight is 120.11, MDL number is MFCD00079221, category is piperidines. Now introduce a scientific discovery about this category, Name: Purine.

From cyclic amines and acetonitrile to amidine zinc(ii) complexes

A seemingly simple combination of [Zn(quin)(2)(H2O)] (quin(-) = quinaldinate) and a selected secondary cyclic amine, piperidine (pipe), pyrrolidine (pyro) or morpholine (morph), afforded in acetonitrile a number of products: anionic homoleptic quinaldinate, neutral heteroleptic quinaldinate/amine and quinaldinate/amidine complexes. The piperidine and pyrrolidine systems underwent reaction with acetonitrile to give amidines. The in situ formed piperidinoacetamidine (pipeam) or pyrrolidinoacetamidine (pyroam) coordinated to zinc(ii). Reactions with piperidine led to trans-[Zn(quin)(2)(pipe)(2)]center dot 2CH(3)CN (1), [Zn(quin)(2)(pipe)]center dot cis-[Zn(quin)(2)(pipe)(2)] (2), pipeH[Zn(quin)(3)]center dot CH3CN (3), [Zn(quin)(2)(pipeam)]center dot CH3CN (4a), [Zn(quin)(2)(pipeam)]center dot 2CHCl(3) (4b), pipeamH[Zn(quin)(3)] (5) and pipeamH[Zn(quin)(2)(CH3COO)]center dot acetamide (6) (pipeH(+) and pipeamH(+) denote protonated amine or amidine). By analogy, [Zn(quin)(2)(pyro)(2)] (7), pyroH[Zn(quin)(3)]center dot CH3CN (8), pyroH[Zn(quin)(2)Cl] (9), [Zn(quin)(2)(pyroam)]center dot CH3CN center dot 0.5pyroam center dot 0.5H(2)O (10a), [Zn(quin)(2)(pyroam)]center dot 2CHCl(3) (10b), [Zn(quin)(2)(pyroam)]center dot CH2Cl2 (10c) and pyroamH[Zn(quin)(3)] (11) were obtained in the pyrrolidine reactions. The morpholine system allowed isolation of only two novel products, trans-[Zn(quin)(2)(morph)(2)] (12) and morphH[Zn(quin)(3)]center dot CH3CN (13). Importantly, no amidine could be isolated. Instead, in autoclaves at 105 degrees C morpholine degraded to ammonia, as confirmed by mass spectrometry of the gas phase. pyroamH[Zn(quin)(3)] exists in two polymorphs which differ in the binding modes of quinaldinate ligands. In 11triclinic, the metal ion of [Zn(quin)(3)](-) features a five-coordinate environment, whereas that in 11monoclinic is surrounded by six donors. Stabilities of the [Zn(quin)(3)](-) isomers were assessed with DFT calculations. The one with a six-coordinate zinc(ii) ion was found to be more stable than its five-coordinate counterpart. Favorable intermolecular interactions in the solid state stabilize both and reduce the energy difference between them. The calculations show the conversion of the five-coordinate [Zn(quin)(3)](-) into its coordinatively saturated isomer to be an almost barrierless process.

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Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem

 

179474-79-4, Name is 1-(3-Methoxypropyl)piperidin-4-amine, molecular formula is C9H20N2O, Name: 1-(3-Methoxypropyl)piperidin-4-amine, belongs to piperidines compound, is a common compound. In a patnet, author is Moumaneix, Lilian, once mentioned the new application about 179474-79-4.

Investigation of and mechanism proposal for solvothermal reaction between sodium and 1-(2-hydroxyethyl)piperidine as the first step towards nitrogen-doped graphenic foam synthesis

For the purpose of synthetizing 3-dimensional nitrogen-doped graphenic materials, which could be used as oxygen reduction catalysts in membrane fuel cells, a solvothermal-based route was successfully carried out. However, the solvothermal reaction between metallic sodium and 1-(2-hydroxyethyl)piperidine (HEP), with the latter as the source of both carbon and nitrogen, is still little understood. The present work was aimed at investigating the solvothermal process under different conditions of temperature and pressure and with different amounts of sodium. Use ofin situmass spectroscopy during the three-day reaction revealed the early formation of dihydrogen, as well as carbon oxides, methane and ammonia, in addition to fragments of ethylpiperidine alkoxide (EP-ONa). XRD measurements evidenced the formation of sodium-based compounds,e.g.hydride, carbonate, hydroxide, and cyanide. Interestingly, Raman spectroscopy revealed the significant presence of large aromatic molecules as well as an sp(2)carbon network, an early precursor of graphene. Analysis of the overpressures and reaction yields suggests that the primary compound from the reaction of HEP with sodium is a large sp(2)carbon-based network entrapping numerous sodium-based molecules as well as a volatile liquid phase. The suggested reaction mechanism provides information to better tailor the solvothermal products, whose pyrolysis at 850 degrees C led to very high specific area nitrogen-doped carbon materials.

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Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem

 

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 3040-44-6, Name is 1-(2-Hydroxyethyl)piperidine, formurla is C7H15NO. In a document, author is El-Maghraby, Awatef, introducing its new discovery. Recommanded Product: 3040-44-6.

Synthesis, Characterization and In silico Molecular Docking Studies of Novel Chromene Derivatives as Rab23 Inhibitors

THE Rab23 protein overexpression has a Well-validated role in variety of human cancers. Therefore, the present research aimed to identify new Rab23 protein inhibitor candidates using computational based drug design methodology. A novel series of chromeno[2,3-b] pyridine derivatives has been synthesized by the cyclocondensation of 2-amino-3-cyano-4H-chromenes with cyclohexanone and cyclopentanone in ethanolic piperidine solution. The 2-amino-4H-chromenes were obtained using one pot multicomponent condensation of resorcinol; malononitrile and aromatic aldehydes in the presence in ethanolic piperidine solution. All newly synthetic compounds were characterized by spectral analysis IR. NMR and MS and elemental analysis techniques. The best binding modes of chromene derivatives Were evaluated via molecular (locking studies and binding energy calculations, using PyRx tool. The study has shown that the pyran and pyridine moieties interact favorably with the binding site of target protein, providing the mechanism of action against human sapiens Rab23 protein.

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Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem

 

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 13925-03-6, Name is 2-Ethyl-6-methylpyrazine, SMILES is CC1=CN=CC(CC)=N1, in an article , author is Verma, Ramesh, once mentioned of 13925-03-6, Application In Synthesis of 2-Ethyl-6-methylpyrazine.

Design, synthesis and neuropharmacological evaluation of new 2,4-disubstituted-1,5-benzodiazepines as CNS active agents

Benzodiazepines (BZDs) represent a class of privilege scaffold in the modern era of medicinal chemistry as CNS active agents and BZD based drugs are used to treat different psychotic disorders. Inspired from the therapeutic potential of BZDs as promising CNS active agents, in the present work three different series of 1,5-benzodia-zepines bearing various substitutions at position 2 and 4 of the benzodiazepine core were synthesized by con-densing different substituted chalcones with o-phenylenediamine in the presence of piperidine as a base catalyst. Structural characterization of title compounds was done by using various analytical techniques such as IR, NMR, elemental analysis and mass spectral data. All the synthesized compounds (9a-d, 10a-e and 11a-c) were sub-jected to in vivo neuropharmacological studies to evaluate their CNS depressant and antiepileptic activity. Results of in vivo evaluation data showed that analogue 11b exhibited potent CNS depressant activity which was comparable to the standard drug diazepam. Compounds 10b and 10c displayed significant antiepileptic activity however they were less potent than the standard drug phenobarbitone. Molecular docking studies were per-formed using MOE software to find the interaction pattern and binding mode at the GABAA receptor (PDB Id: 6HUP). The results of the docking studies were in good agreement with the observed in vivo activity and revealed the satisfactory binding mode of the compounds within the binding site of the protein. The docking scores for the most promising candidates 10c, 11b and Diazepam were found to be -9.18, -9.46 and -9.88, respectively. Further, the compounds showed compliance with the Lipinski’s ‘rule of five’ and exhibited favourable drug -likeness scores. The identified leads can be explored further for the design and development of new BZD based psychotropic agents.

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Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem

 

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, Formula: C10H20N2O2, 188111-79-7, Name is (R)-1-Boc-3-Aminopiperidine, SMILES is C(=O)(OC(C)(C)C)N1CCC[C@H](C1)N, belongs to piperidines compound. In a document, author is Noble, Carolina, introduce the new discover.

Application of a screening method for fentanyl and its analogues using UHPLC-QTOF-MS with data-independent acquisition (DIA) in MSE mode and retrospective analysis of authentic forensic blood samples

The steady appearance of new fentanyl analogues and the associated overdose deaths require the development of sensitive screening approaches to detect these compounds in biological samples and seizures. We developed a targeted screening method to detect 50 4-anilidopiperidine-related fentanyl analogues in whole blood using ultra-high performance liquid chromatography quadrupole time-of-flight mass spectrometry in data-independent acquisition mode. Sample preparation was performed using protein precipitation on a fully automated robotic setup. Thirteen analogues were selected to validate the method. A small matrix ion enhancement effect (110-123%) was observed for all of the compounds; the recovery ranged from 67% to 81% and the process efficiency from 81% to 98%. Limit of detection was within 0.0005-0.001mg/kg and limit of identification ranged from 0.001 to 0.005mg/kg. In the retrospective analysis of 2339 forensic blood samples, the major finding was fentanyl (n=56), followed by alfentanil (n=5) and remifentanil (n=1). Identification of 34 fentanyl analogues was based on the predicted product ions resulting from common fentanyl-specific collision-induced cleavages, particularly on the product ion result of the fragmentation on the C-N bond between the phenylamide moiety and the piperidine ring. The proposed hypothesis was supported by the targeted analysis of 16 fentanyl analogues using this method and available published mass spectral data sources for fentanyl analogues. A targeted screening method for 50 fentanyl analogues was successfully validated and implemented to analyse authentic blood samples, where identifying targeted fentanyl analogues was tentatively achieved without using reference standards.

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 188111-79-7. Formula: C10H20N2O2.

Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem