Category: piperazines

Application of 139755-85-4, 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. 139755-85-4, Name is 5-(2-Ethoxy-5-((4-(2-hydroxyethyl)piperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one, SMILES is O=C1C(N(C)N=C2CCC)=C2N=C(C3=CC(S(=O)(N4CCN(CCO)CC4)=O)=CC=C3OCC)N1, belongs to piperazines compound. In a article, author is Sirakanyan, Samvel, introduce new discover of the category.

Synthesis and antimicrobial activity of new 2-piperazin-1-yl-N-1,3-thiazol-2-ylacetamides of cyclopenta[c]pyridines and pyrano[3,4-c]pyridines

In this study, we report the synthesis and antimicrobial activity of some new disubstituted piperazines. Thus, 3-chlorocyclopenta[c]pyridines and 6-chloropyrano[3,4-c]pyridine1under mild reaction conditions with piperazine gave the 3(6)-piperazine-substituted cyclopenta[c]pyridines and pyrano[3,4-c]pyridine2. Furthermore, the latter, by alkylation with 2-chloro-N-1,3-thiazol-2-ylacetamide, led to the formation of the target compounds. The evaluation of the antibacterial activity revealed that3kwas the most potent compound. The most sensitive bacterium was found to beListeria monocytogenes, whereasStaphylococcus aureuswas the most resistant one. Three compounds,3d,3g, and3k, were tested also against the following resistant strains: methicillin-resistantS. aureus(MRSA),Escherichia coli, andPseudomonas aeruginosa. All three compounds appeared to be more potent than ampicillin against MRSA. Moreover, compound3dshowed a better activity than the reference drug ampicillin againstP. aeruginosa, whereas3gwas more efficient againstE. coli. The best antifungal activity was observed again for compound3k. The most resistant fungi appeared to beAspergillus fumigatus, whereasTrichoderma virideseemed the most sensitive one toward the compounds tested. Molecular docking studies onE. coliMurB, as well as onCandida albicansCYP51 and dihydrofolate reductase, were used for the prediction of the mechanisms of the antibacterial and antifungal activities, confirming the experimental results.

Application of 139755-85-4, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 139755-85-4.

Reference:
Piperazine – Wikipedia,
,Piperazines – an overview | ScienceDirect Topics

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. 300543-56-0, Name is (R)-1-((4-Chlorophenyl)(phenyl)methyl)piperazine, formurla is C17H19ClN2. In a document, author is Bari, Darakhshan Gazala, introducing its new discovery. Product Details of 300543-56-0.

SYNTHESIS, CHARACTERIZATION AND PHARMACOLOGICAL EVALUATION OF SOME ARYL PIPERAZINE COMPOUNDS

In this planed research work, aryl piperazine derivatives will be synthesized because aryl piperazine currently the most important constructive block in drug discovery with positive pharmacological evaluation. A series N- (4-(benzo[d]thiazol-2-yl) phenyl)-2-[4-(arylsubstituted) piperazines-1-yllacetamide, N-(4-(benzo[d]oxazol-2-yl)phenyl)2-[4-(arylsubstituted)piperazines-1-yl]acetamide and Synthesis of N-(4(benzo[d]imidazol-2-yl) phenyl)- 2- (4-(arylsubstituted)piperazin-1-yl) acetamide will be synthesized with their characterization such as melting point determination, Thin-layer chromatography (TLC) and spectral analysis. After that, pharmacological evaluation, such as antibacterial activity, will be performed for synthesized compounds. All the synthesized compounds were reported for determination of zone of inhibition (mm), minimum inhibitory concentrations (MIC) were also calculated for effective derivatives, with an objective to offer some potent antimicrobial agents to human beings. Antimicrobial activity is determined based on their in-vitro activity in pure cultures. In-vitro susceptibility testing is done by two methods i.e.. Turbidimetric/photometric/tube dilution method and agar diffusion/cupplat/cylinder plate method.

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Reference:
Piperazine – Wikipedia,
,Piperazines – an overview | ScienceDirect Topics

Application of 5294-61-1, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 5294-61-1, Name is N-(2,6-Dimethylphenyl)-2-(piperazin-1-yl)acetamide, SMILES is O=C(NC1=C(C)C=CC=C1C)CN2CCNCC2, belongs to piperazines compound. In a article, author is Kang, Yesol, introduce new discover of the category.

PIP/TMC Interfacial Polymerization with Electrospray: Novel Loose Nanofiltration Membrane for Dye Wastewater Treatment

A loose nanofiltration (NF) membrane with excellent dye rejection and high permeation of inorganic salt is required to fractionate dye/salt mixture in dye wastewater treatment. In this study, we fabricated the loose NF membrane by using the electrospray interfacial polymerization (EIP) method. It is a novel and facile interfacial polymerization method, which controls the thickness of the poly(piperazine-amide) (PPA) layer in nanometers (1 nm/min) and changes cross-linking degree of PPA layer and pore size by varying the electrospray time; consequently, water permeance and dye/salt rejection ratio can be handled. The fabricated EIP membrane with an optimized fabrication condition (M30, electrospray time was 30 min) possessed excellent pure water permeance (20.2 LMH/bar), high dye rejection (e.g., 99.6% for congo red (CR)), and low salt rejection (e.g., 6.3% for NaCl). Moreover, the EIP membrane exhibited enhanced antifouling property than commercial NF membrane (NF90) with a high flux recovery rate (FRR) of 87.1% and low irreversible fouling (R-ir) of 12.9% after fouled by bovine serum albumin (BSA) due to its great smooth surface (average roughness (R-a) is 12.2 nm), hydrophilicity property, enhanced zeta potential, and low protein adsorption. The results indicate that the EIP loose NF membrane had a high potential for dye wastewater treatment.

Application of 5294-61-1, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 5294-61-1.

Reference:
Piperazine – Wikipedia,
,Piperazines – an overview | ScienceDirect Topics

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. 5294-61-1, Name is N-(2,6-Dimethylphenyl)-2-(piperazin-1-yl)acetamide, molecular formula is C14H21N3O. In an article, author is Zaharani, Lia,once mentioned of 5294-61-1, Product Details of 5294-61-1.

1H,4H-Piperazine-diium Dichlorosulfonate: Structure Elucidation and its Dual Solvent-Catalyst Activity for the Synthesis of New Dihydro-[1,2,4]triazolo[1,5-a]pyrimidine Scaffolds

A new ionic liquid containing a 1H,4H-piperazine-diium ring and chlorosulfonate as a 1,4-dicationic core and counter ion, respectively, was designed and synthesised. The structure elucidation of this ionic liquid was conducted by 1D and 2D NMR, FT-IR, Raman, and mass spectrum analysis. The physical properties of this ionic liquid were determined and reported. Furthermore, the dual solvent-catalyst activity of piperazine-1,4-diium dichlorosulfonate was investigated for the synthesis of new dihydro[1,2,4]triazolo[1,5-a]pyrimidines through a one-pot three-component reaction. The ionic liquid was retrieved and reused several times without reducing its catalytic efficiency.

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Reference:
Piperazine – Wikipedia,
,Piperazines – an overview | ScienceDirect Topics

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. 5294-61-1, Name is N-(2,6-Dimethylphenyl)-2-(piperazin-1-yl)acetamide, formurla is C14H21N3O. In a document, author is Dai, Xia-Lin, introducing its new discovery. Formula: C14H21N3O.

Solubility and Permeability Improvement of Allopurinol by Cocrystallization

Allopurinol is a xanthine oxidase inhibitor with poor solubility and permeability, which severely limit its drug absorption following the administration of some dosage forms, such as tablets and rectal suppositories. To improve the physicochemical properties, three cocrystals of allopurinol with isonicotinamide (ALP-INA), piperazine (ALP-PIP), and 2,4-dihydroxybenzoic acid (ALP-24DHBZA) were successfully prepared by a slurry or liquid-assisted grinding method. The obtained cocrystal materials were characterized by single-crystal X-ray diffraction, powder X-ray diffraction, infrared spectroscopy, differential scanning calorimetry, and thermogravimetric analyses and were subjected to dynamic vapor sorption, dissolution, and membrane permeability studies. ALP-INA showed solubility and diffusion/membrane permeability similar to those of the parent drug. In contrast, ALP-PIP exhibited improved diffusion/membrane permeability, and ALP-24DHBZA exhibited improved dissolution behavior, respectively. These results suggest that ALP-PIP and ALP-24DHBZA have the potential to be developed as new, more efficient formulations of allopurinol.

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Reference:
Piperazine – Wikipedia,
,Piperazines – an overview | ScienceDirect Topics

Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 147081-29-6, Name is (S)-tert-Butyl 3-methylpiperazine-1-carboxylate, SMILES is O=C(N1C[C@H](C)NCC1)OC(C)(C)C, belongs to piperazines compound. In a document, author is Jassem, A. M., introduce the new discover, COA of Formula: C10H20N2O2.

Synthesis of New Drug-Like Piperazine-2,5-diones by the Ugi/Tandem Process Catalyzed by TMSOTf and Their Molecular Docking

A new four-components post-Ugi transformation process has been studied. It provides an efficient access to biologically active piperazine-2,5-dione derivatives in high yield. The framework of piperazine-2,5-dione derivatives has been constructed by a tandem-decarboxylation of alpha-keto carboxylic acids promoted by a green catalyst trimethylsilyl trifluoromethane sulfonate (TMSOTf). Molecular docking study of piperazine-2,5-dione derivatives has been performed with various anticancer target proteins: human androgen receptor (AR) (PDB ID: 1E3G), human steroidogenic cytochrome P450 17A1 (PDB ID: 4NKV), epidermal growth factor receptor 2 HER2 (PDB ID: 3PP0), and estrogen receptor alpha (ER alpha) (PDB ID: 1A52), and has indicated their possible efficient interactions via hydrogen bonds.

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 147081-29-6 is helpful to your research. COA of Formula: C10H20N2O2.

Reference:
Piperazine – Wikipedia,
,Piperazines – an overview | ScienceDirect Topics

Electric Literature of 5308-25-8, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C¨CH bond functionalisation has revolutionised modern synthetic chemistry. 5308-25-8, Name is 1-Ethylpiperazine, SMILES is CCN1CCNCC1, belongs to piperazines compound. In a article, author is Ciammaichella, Alina, introduce new discover of the category.

Optimization of 2-(1H-imidazo-2-yl)piperazines series of Trypanosoma brucei growth inhibitors as potential treatment for the second stage of HAT

A previous publication from our laboratory reported the identification of a new class of 2-(1H-imidazo-2-yl) piperazines as potent T. brucei growth inhibitors as potential treatment for Human African Trypanosomiasis (HAT). This work describes the structure-activity relationship (SAR) around the hit compound 1, which led to the identification of the optimized compound 18, a single digit nanomolar inhibitor (EC50, 7 nM), not cytotoxic and with optimal in vivo profile that made it a suitable candidate for efficacy studies in a mouse model mimicking the second stage of disease.

Electric Literature of 5308-25-8, 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 5308-25-8 is helpful to your research.

Reference:
Piperazine – Wikipedia,
,Piperazines – an overview | ScienceDirect Topics

Related Products of 5308-25-8, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, 5308-25-8, Name is 1-Ethylpiperazine, SMILES is CCN1CCNCC1, belongs to piperazines compound. In a article, author is Bi, Qiuyan, introduce new discover of the category.

Positively charged zwitterion-carbon nitride functionalized nanofiltration membranes with excellent separation performance of Mg2+/Li+ and good antifouling properties

A nanofiltration (NF) membrane with positive charges capable of separating Mg2+ and Li+ from high Mg/Li ratio brine was prepared by interfacial polymerization of 1, 4-bis (3-aminopropyl) piperazine (BAPP)/trimesoyl chloride monomers, and then nano graphitic carbon nitride (g-C3N4) functionalized with zwitterion (BHC-CN) was introduced into the active layer of the fabricated membrane. Salt permeation and selectivity were improved with the increase of BHC-CN content to 0.02% in BAPP solution. The morphology and surface chemical composition of BHC-CN were detected. The surface Zeta potential test indicates that the membrane fabricated with BHC-CN is positively charged at pH < 7.33. The presence of small aggregates on the surface of the membrane may increase the effective filtering area of the membrane and thus improve the permeability. It also exhibits long-time stability and excellent separation of Mg2+ and Li+, and the Mg/Li ratio is decreased from 73 in the feed to 1.85 in the permeation. Moreover, the resulted membrane shows good fouling resistance. In conclusion, the membrane has potential advantages in water softening and recovering Li+ from brine with high Mg/Li ratio. Related Products of 5308-25-8, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 5308-25-8.

Reference:
Piperazine – Wikipedia,
,Piperazines – an overview | ScienceDirect Topics

Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology. 16153-81-4, Name is 4-(4-Methylpiperazin-1-yl)phenylamine, molecular formula is , belongs to piperazines compound. In a document, author is Kalbfleisch, Jacob J., Name: 4-(4-Methylpiperazin-1-yl)phenylamine.

Synthesis and SAR of a series of mGlu(7) NAMs based on an ethyl-8-methoxy-4-(4-phenylpiperazin-1-yl)quinoline carboxylate core

A High-Throughput Screening (HTS) campaign identified a fundamentally new mGlu(7) NAM chemotype, based on an ethyl-8-methoxy-4-(4-phenylpiperazin-1-yl)quinolone carboxylate core. The initial hit, VU0226390, was a potent mGlu(7) NAM (IC50 = 647 nM, 6% L-AP4 min) with selectivity versus the other group III mGlu receptors (> 30 mu M vs. mGlu4 and mGlu8). A multi-dimensional optimization effort surveyed all regions of this new chemotype, and found very steep SAR, reminiscent of allosteric modulators, and unexpected piperazine mimetics (whereas classical bioisosteres failed). While mGlu(7) NAM potency could be improved (IC(50)s similar to 350 nM), the necessity of the ethyl ester moiety and poor physiochemical and DMPK properties precluded optimization towards in vivo tool compounds or clinical candidates. Still, this hit-to-lead campaign afforded key medicinal chemistry insights and new opportunities.

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 16153-81-4, in my other articles. Name: 4-(4-Methylpiperazin-1-yl)phenylamine.

Reference:
Piperazine – Wikipedia,
,Piperazines – an overview | ScienceDirect Topics

Synthetic Route of 841-77-0, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C¨CH bond functionalisation has revolutionised modern synthetic chemistry. 841-77-0, Name is 1-Benzhydrylpiperazine, SMILES is N1(C(C2=CC=CC=C2)C3=CC=CC=C3)CCNCC1, belongs to piperazines compound. In a article, author is Pan, Yingtong, introduce new discover of the category.

Synergistic flame retardant effect of piperazine salt and ammonium polyphosphate as intumescent flame retardant system for polypropylene

Amino trimethylene phosphonic acid piperazine (ATPIP)salt, as a novel charring agent, is prepared via a simple ionic reaction in distilled water using amino trimethylene phosphate (ATMP) and piperazine as raw materials. The synergistic flame retardant effect of ATPIP and ammonium polyphosphate (APP) as an intumescent flame retardant (IFR) is investigated by various characterization and testing methods. The results show that the polypropylene (PP)/modified APP with piperazine (MAPP)/ATPIP ternary blend passes UL-94 V-0 rating and achieve a limiting oxygen index (LOI) of 30% at a loading level of 25 wt% IFR (MAPP:ATPIP = 3:1). Meanwhile, the total smoke production (TSP) value of IFR-PP samples is 3.3 m(2), which decreases by 93.2% compared with that of pure PP, exhibiting excellent smoke suppression performance. Besides, the analysis of gaseous pyrolysis products and char residue indicates that the IFR-PP samples show a synergistic flame-retardant mechanism including the gas phase and the condensed phase.

Synthetic Route of 841-77-0, Consequently, the presence of a catalyst will permit a system to reach equilibrium more quickly, but it has no effect on the position of the equilibrium as reflected in the value of its equilibrium constant.I hope my blog about 841-77-0 is helpful to your research.

Reference:
Piperazine – Wikipedia,
,Piperazines – an overview | ScienceDirect Topics