Tag: M.W:200-300

Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.19916-73-5, Name is 6-(Benzyloxy)-7H-purin-2-amine, SMILES is C3=NC1=C(C(=NC(=N1)N)OCC2=CC=CC=C2)[NH]3, belongs to piperidines compound. In a document, author is Ferraro, Giarita, introduce the new discover, Safety of 6-(Benzyloxy)-7H-purin-2-amine.

A case of extensive protein platination: the reaction of lysozyme with a Pt(II)-terpyridine complex

An antiproliferative platinum(ii)-terpyridine complex bearing two piperidine substituents at positions 2 and 2 (compound 1, hereafter) interacts non-covalently with DNA and induces cell death through necrosis, i.e. a mode of action that is distinct from that exhibited by cisplatin (Suntharalingam, et al., Metallomics, 2013, 5, 514). Here, the interaction between this Pt compound and the model protein hen egg white lysozyme (HEWL) was studied by both electrospray ionization mass spectrometry (ESI MS) and X-ray crystallography. The ESI MS data collected after 24 h protein incubation with compound 1 at two different pH values offer evidence that the metal complex degrades upon reaction with HEWL, forming adducts with 1:1, 2:1 and 3:1 Pt/protein ratios. Two different X-ray structures of Pt-protein adducts, obtained by the reaction of HEWL with the Pt compound under different experimental conditions and incubation times, are then reported. An unexpected extensive platination of the protein is clearly observed: Pt containing fragments bind close to the NZ atom of Lys1 and OE1 atom of Glu7, NE2 atom of His15 and NH1 atom of Arg14, ND1 atom of His15, NZ atom of Lys96, NZ atom of Lys97 and ND1 atom of Asn93, NZ atom of Lys13 and the C-terminal carboxylate, and the N-terminal amine. An additional binding site was observed close to the NZ atom of Lys33. These results suggest that both N- and C-terminal tails, as well as Lys side chains, have to be considered as potential binding sites of Pt-containing drugs. The peculiar reactivity of compound 1 with biological macromolecules could play a role in its mode of action.

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 19916-73-5 is helpful to your research. Safety of 6-(Benzyloxy)-7H-purin-2-amine.

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

 

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. 119515-38-7, Name is sec-Butyl 2-(2-hydroxyethyl)piperidine-1-carboxylate, molecular formula is C12H23NO3. In an article, author is Peng Lin-Xiu,once mentioned of 119515-38-7, Formula: C12H23NO3.

Metabolomic Study of Kidney Injury Induced by Antitubercular Drugs and Therapeutic Effect of Glutathione Based on Gas Chromatography-Mass Spectrometry

Histopathology and serum biochemical indicators (urea nitrogen and creatinine) were investigated to evaluate the kidney injury caused by the combination use of isoniazid (100 mg/kg/d, ig)) and rifampicin (100 mg/ (kg center dot d, ig)), which were used as anti-tuberculous drug. The endogenous metabolites extracted from kidney tissue were evaluated based on gas chromatography-mass spectrometry coupled with partial least squares-discriminant analysis and other multidimensional as well as unidimensional statistical methods. Glutathione, which was reported to protect tissue from damage caused by anti-tuberculosis drugs, was used to treat rats(250 mg/ (kg center dot d, iv)) with kidney damage. Biochemical indicators showed that creatinine and urea nitrogen increased (p < 0. 05) greatly after intragastrically administrated with isoniazid and rifampicin. In kidney, 31 endogenous metabolites were identified as potential biomarkers, including tyrosine, proline, uridine and palmitoleic acid, etc. All these results suggested that the combination use of isoniazid and rifampicin caused serious damage to kidney and disturbed the fatty acid metabolism, arginine and proline metabolism. In addition, glutathione reduced the level of serum urea nitrogen (p < 0. 05) obviously and alleviated proliferation of glomerular mesangium. These results indicated that glutathione had good therapeutic effects on kidney injury caused by antituberculous drug and significantly regulated the abundance of palmitoleic acid, 4.hydrobutyric acid, citrulline, gluconolactone, guanidinoacetic acid and piperidine acid in kidney. Interested yet? Keep reading other articles of 119515-38-7, you can contact me at any time and look forward to more communication. Formula: C12H23NO3.

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. 2873-29-2, Name is (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate, SMILES is O=C(OC[C@@H]1[C@@H](OC(C)=O)[C@H](OC(C)=O)C=CO1)C, in an article , author is Anderson, James C., once mentioned of 2873-29-2, Category: piperidines.

Asymmetric synthesis of piperidines using the nitro-Mannich reaction

A method for the synthesis of functionalized piperidines containing 3 contiguous stereocentres in the 2-,3- and 4- positions uses a diastereoselective nitro-Mannich to control stereochemistry. The nitro-Mannich reaction between a beta-aryl/heteroaryl substituted nitroalkanes and glyoxylate imine provides beta-nitro-amines with good selectivity (70:30 to >95:5) for the syn, anti-diastereoisomers. Reductive cyclisation with BF3 center dot OEt2 and Et3SiH gave, after purification, stereochemically pure piperidines in 19-57% yield for ten examples with different 4-aryl/heteroaryl substituents. (C) 2020 Elsevier Ltd. All rights reserved.

Interested yet? Read on for other articles about 2873-29-2, you can contact me at any time and look forward to more communication. Category: piperidines.

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, COA of Formula: C12H9N5O, 4005-49-6, Name is N-(7H-Purin-6-yl)benzamide, SMILES is O=C(NC1=C2NC=NC2=NC=N1)C3=CC=CC=C3, belongs to piperidines compound. In a document, author is Gazitua, Marcela, introduce the new discover.

Effect of the nature of the nucleophile and solvent on an SNAr reaction

The reaction of 2,4-dinitrobenzenesulfonyl chloride toward propylamine was kinetically evaluated in 19 organic solvents and 10 ionic liquids as reaction media. This study was compared with a previous study to experimentally show that solvent effects and the nature of the reacting pair drastically affect the reaction rate and the reaction mechanism. While the reaction of the reference electrophile 2,4-dinitrobenzenesulfonyl chloride with piperidine is favored in polar solvents with the ability to donate or accept hydrogen bonds, the reaction with propylamine is favored in solvents with the ability to accept hydrogen bonds.

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 4005-49-6. COA of Formula: C12H9N5O.

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. 88495-54-9, Name is (S)-1-(tert-Butoxycarbonyl)piperidine-3-carboxylic acid, SMILES is O=C([C@@H]1CN(C(OC(C)(C)C)=O)CCC1)O, in an article , author is Ghatpande, Nitin G., once mentioned of 88495-54-9, Application In Synthesis of (S)-1-(tert-Butoxycarbonyl)piperidine-3-carboxylic acid.

A brief overview on recent advances in spiro[chromane-2,4 ‘-piperidine]-4 (3H)-one-functionalized compounds in medicinal chemistry research

The spiro[chromane-2,4′-piperidine]-4(3H)-one is an important pharmacophore. It is a structural component in many drugs, drug candidates (or lead compounds) and various biochemical reagents. This review demonstrated an impressive progress in syntheses of spiro[chromane-2,4′-piperidine]-4(3H)-one-derived compounds in the recent years and focuses on features of their biological relevance’s. The prospects for the development of new biologically active substances containing a spiro[chromane-2,4’-piperidine]-4(3H)-one pharmacophore are analyzed and briefly discussed in terms of its structure, reaction, mechanism, scope and potential utility.

Interested yet? Read on for other articles about 88495-54-9, you can contact me at any time and look forward to more communication. Application In Synthesis of (S)-1-(tert-Butoxycarbonyl)piperidine-3-carboxylic acid.

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

 

Synthetic Route of 188111-79-7, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 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 article, author is Doi, Takayuki, introduce new discover of the category.

Cyclodepsipeptide Natural Products Apratoxins A and C and Their Analogs

In this study, the total syntheses of apratoxins A and C and their analogs were carried out. Apratoxins A and C and their oxazoline analogs exhibited potent cytotoxicities against cancer cells as well as similar 3D structures in solution as analyzed by a distance geometry method. The oxazoline analogs were slightly less, but highly, potent as they exhibited similar conformations as their parent compounds. As the MoCys moiety possibly induced severe toxicity owing to the ability of a Michael acceptor and instability of the thiazoline ring under acidic and basic conditions, MoCys and MeAla-MeIle were substituted by other simple amino acids. In addition, the combinatorial synthesis of these mimetics was carried out by the split and mix method with solid-phase peptide synthesis and solution-phase macrolactamization in parallel. Apratoxin M7 in which MoCys was replaced by piperidine-4-carboxylic acid was found to exhibit a conformation similar to that of apratoxin A, and indicated moderate activity. Based on apratoxin M7, the further optimization of the Tyr(Me)-MeAla-MeIle tripeptide led to the discovery of apratoxin M16 (Bph/Tyr(Me)), which is as potent as apratoxin A. The growth inhibitory activity of apratoxin A and apratoxin M16 against 10 cancer cell lines was comparable, suggesting that the target of apratoxin M16 should be the same as that of apratoxin A.

Synthetic Route of 188111-79-7, 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 188111-79-7.

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

 

Chemistry is an experimental science, HPLC of Formula: C13H11N3O5, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 827026-45-9, Name is 3-(4-Nitro-1-oxoisoindolin-2-yl)piperidine-2,6-dione, molecular formula is C13H11N3O5, belongs to piperidines compound. In a document, author is Nogueira, Lucie S..

Molybdenum(0) tricarbonyl and tetracarbonyl complexes with a cationic pyrazolylpyridine ligand: synthesis, crystal structures and catalytic performance in olefin epoxidation

The synthesis of molybdenum(0) tricarbonyl and tetracarbonyl complexes of the form [Mo(CO)(3)(ptapzpy)Br] (1) and cis-[Mo(CO)(4)(ptapzpy)]Br (2) is reported, where ptapzpy = 2-(1-propyltrimethylammonium-3-pyrazolyl)pyridine. Preparation of these derivatives was accomplished either through thermal replacement of CO in Mo(CO)(6) (for 1) or substitution under milder conditions of piperidine ligands in the precursor cis-[Mo(CO)(4)(pip)(2)] (for 2). The crystal structures of the ligand [ptapzpy] Br and complexes 1 and 2 were determined. Thermal treatment of 2 at 125-150 degrees C leads to mono decarbonylation and formation of 1. On the other hand, oxidative decarbonylation of 1 and 2 by reaction with tert-butylhydroperoxide (TBHP, 10 equiv.) gives a molybdenum oxide hybrid material formulated as [Mo3O9([ptapzpy]Br)(2)]center dot nH(2)O (3), which was characterised by FT-IR and Raman spectroscopy, thermogravimetric analysis, and C-13{H-1} CP MAS NMR spectroscopy. Compounds 1-3 were effective (pre)catalysts for the epoxidation of cis-cyclooctene at 55 degrees C with aqueous H2O2 or TBHP (slightly better results were obtained with the former). The characterisation of the Mo-containing solids isolated after the catalytic reaction showed that poorly soluble beta-octamolybdate salts, (L)(x)[Mo8O26], were formed from 1-3 with TBHP and from 1 with H2O2, while soluble oxoperoxo species were formed from 3 with H2O2. These findings helped to explain the different catalytic performances obtained.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 827026-45-9, in my other articles. HPLC of Formula: C13H11N3O5.

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

 

Reference of 388077-74-5, Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. The appropriate choice of redox mediator can avoid electrode passivation and overpotential. 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 Pape, Veronika F. S., introduce new discover of the category.

Impact of copper and iron binding properties on the anticancer activity of 8-hydroxyquinoline derived Mannich bases

The anticancer activity of 8-hydroxyquinolines relies on complex formation with redox active copper and iron ions. Here we employ UV-visible spectrophotometry and EPR spectroscopy to compare proton dissociation and complex formation processes of the reference compound 8-hydroxyquinoline (Q-1) and three related Mannich bases to reveal possible correlations with biological activity. The studied derivatives harbor a CH2-N moiety at position 7 linked to morpholine (Q-2), piperidine (Q-3), and chlorine and fluorobenzylamino (Q-4) substituents. Solid phase structures of Q-3, Q-4HClH(2)O, [(Cu(HQ-2)(2))(2)](CH3OH)(2)Cl-4(H2O)(2), [Cu(Q-3)(2)]Cl-2 and [Cu(HQ-4)(2)(CH3OH)]ZnCl4CH3OH were characterized by single-crystal X-ray diffraction analysis. In addition, the redox properties of the copper and iron complexes were studied by cyclic voltammetry, and the direct reaction with physiologically relevant reductants (glutathione and ascorbic acid) was monitored. In vitro cytotoxicity studies conducted with the human uterine sarcoma MES-SA/Dx5 cell line reveal the significant cytotoxicity of Q-2, Q-3, and Q-4 in the sub- to low micromolar range (IC50 values 0.2-3.3 M). Correlation analysis of the anticancer activity and the metal binding properties of the compound series indicates that, at physiological pH, weaker copper(ii) and iron(iii) binding results in elevated toxicity (e.g.Q4: pCu = 13.0, pFe = 6.8, IC50 = 0.2 M vs.Q1: pCu = 15.1, pFe = 13.0 IC50 = 2.5 M). Although the studied 8-hydroxyquinolines preferentially bind copper(ii) over iron(iii), the cyclic voltammetry data revealed that the more cytotoxic ligands preferentially stabilize the lower oxidation state of the metal ions. A linear relationship between the pK(a) (OH) and IC50 values of the studied 8-hydroxyquinolines was found. In summary, we identify Q-4 as a potent and selective anticancer candidate with significant toxicity in drug resistant cells.

Reference of 388077-74-5, The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.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 Lim, Ngiap-Kie, once mentioned the application of 14691-89-5, Name is 4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl, molecular formula is C11H21N2O2*, molecular weight is 213.3, MDL number is MFCD00043593, category is piperidines. Now introduce a scientific discovery about this category, Computed Properties of C11H21N2O2*.

A fit for purpose synthesis of Bruton’s tyrosine kinase inhibitor GDC-0852

The development of an expedient synthesis to GDC-0852 (1), a reversible BTK inhibitor drug candidate, is described. The key starting material tricyclic lactam 5 was prepared by an annulation reaction of unprotected piperidine-2-carbaldehyde HCl salt (20) and N-Boc piperidine-2,4-dione 21 in a safe and scalable manner. A highly selective Pd-catalyzed C-N coupling of lactam 5 and linker 2a, followed by Suzuki-Miyaura coupling to fragment 8 subsequently provided a direct and convergent access to the penultimate 17. A simple NaBH4 aldehyde reduction completed the synthesis to GDC-0852 (1) in high yield (54% over 3 steps from 5) and purity (99.0 A% HPLC). (C) 2020 Elsevier Ltd. All rights reserved.

Do you like my blog? If you like, you can also browse other articles about this kind. Thanks for taking the time to read the blog about 14691-89-5, Computed Properties of C11H21N2O2*.

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

 

Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, Application In Synthesis of (S)-1-(tert-Butoxycarbonyl)piperidine-3-carboxylic acid88495-54-9, Name is (S)-1-(tert-Butoxycarbonyl)piperidine-3-carboxylic acid, SMILES is O=C([C@@H]1CN(C(OC(C)(C)C)=O)CCC1)O, belongs to piperidines compound. In a article, author is Romero-Ibanez, Julio, introduce new discover of the category.

Concise and Environmentally Friendly Asymmetric Total Synthesis of the Putative Structure of a Biologically Active 3-Hydroxy-2-piperidone Alkaloid

An asymmetric total synthesis of stereoisomers of a putative structure of 3-hydroxy-2-piperidone alkaloid derivative is described. This route is not only concise and efficient but also is achieved under an environmentally friendly approach. To this end, a direct and double C-H oxidation reaction of simple benzylated piperidine and Baker’s yeast reduction of a carbonyl group allowed the rapid access to the optically enriched ( S )-1-benzyl-3-hydroxy-2-piperidone in only three steps. The NMR data agreed with those obtained in the first total synthesis (and in discrepancy with the natural product), however, optical rotation did not match with both neither the natural and synthetic material.

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. you can also check out more blogs about 88495-54-9. Application In Synthesis of (S)-1-(tert-Butoxycarbonyl)piperidine-3-carboxylic acid.

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