Category: piperazines

Determination of quinolone antibiotics in environmental water using automatic solid-phase extraction and isotope dilution ultra-performance liquid chromatography tandem mass spectrometry was written by Zhu, Yingjie;He, Pengfei;Hu, Hongmei;Qi, Mengyu;Li, Tiejun;Zhang, Xiaoning;Guo, Yuanming;Wu, Wenyan;Lan, Qingping;Yang, Cancan;Jin, Hangbiao. And the article was included in Journal of Chromatography B in 2022.Name: 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid The following contents are mentioned in the article:

The widespread use of quinolones in humans and animals has become a major threat to public health. In this study, a simple, rapid, sensitive, and high throughput method based on automatic solid-phase extraction and isotope dilution ultra-performance liquid chromatog. tandem mass spectrometry was described for the determination of trace quinolones in environmental water. The proposed automated solid-phase extraction method was initially optimized, and the optimum exptl. conditions found were 1 L water sample with 0.5 g/L Na2EDTA (pH 3) extracted and enriched by CNW Poly-Sery HLB cartridge at a flow rate of 50 mL/min and eluted by 8 mL of methanol. The linearity of the method ranged from 0.05 to 100μg/L for 15 quinolones, with correlation coefficients ranging from 0.9993 to 0.9999. The limits of detection were in the low ng/L level, ranging from 0.005 to 0.051 ng/L. Finally, the optimized method was applied for determining trace levels of 15 quinolones in Wahaha pure water, tap water, river water, and seawater samples with good recoveries of 93%-119% and satisfactory relative standard deviations of 0.1%-13.9%. Fourteen quinolones were detected, and ofloxacin was the predominant congener in river water and seawater. This study involved multiple reactions and reactants, such as 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7Name: 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid).

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7) belongs to piperazine derivatives. Simple N-substituted piperazines have been found in many drug molecules. Although many piperazine derivatives occur naturally, piperazine itself can be synthesized by reacting alcoholic ammonia with 1,2-dichloroethane, by the action of sodium and ethylene glycol on ethylene diamine hydrochloride, or by reduction of pyrazine with sodium in ethanol.Name: 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid

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

Property space mapping of Pseudomonas aeruginosa permeability to small molecules was written by Leus, Inga V.;Weeks, Jon W.;Bonifay, Vincent;Shen, Yue;Yang, Liang;Cooper, Connor J.;Nash, Dinesh;Duerfeldt, Adam S.;Smith, Jeremy C.;Parks, Jerry M.;Rybenkov, Valentin V.;Zgurskaya, Helen I.. And the article was included in Scientific Reports in 2022.Category: piperazines The following contents are mentioned in the article:

Two membrane cell envelopes act as selective permeability barriers in Gram-neg. bacteria, protecting cells against antibiotics and other small mols. Significant efforts are being directed toward understanding how small mols. permeate these barriers. In this study, we developed an approach to analyze the permeation of compounds into Gram-neg. bacteria and applied it to Pseudomonas aeruginosa, an important human pathogen notorious for resistance to multiple antibiotics. The approach uses mass spectrometric measurements of accumulation of a library of structurally diverse compounds in four isogenic strains of P. aeruginosa with varied permeability barriers. We further developed a machine learning algorithm that generates a deterministic classification model with minimal synonymity between the descriptors. This model predicted good permeators into P. aeruginosa with an accuracy of 89% and precision above 58%. The good permeators are broadly distributed in the property space and can be mapped to six distinct regions representing diverse chem. scaffolds. We posit that this approach can be used for more detailed mapping of the property space and for rational design of compounds with high Gram-neg. permeability. This study involved multiple reactions and reactants, such as 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7Category: piperazines).

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7) belongs to piperazine derivatives. Simple N-substituted piperazines have been found in many drug molecules. Outside the body, piperazine has a remarkable power to dissolve uric acid and producing a soluble urate, but in clinical experience it has not proved equally successful. Category: piperazines

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

Biosynthesis of zinc oxide nanoparticles via endophyte Trichodermaviride and evaluation of their antimicrobial and antioxidant properties was written by Kaur, Tanvir;Bala, Manju;Kumar, Gaurav;Vyas, Ashish. And the article was included in Archives of Microbiology in 2022.COA of Formula: C16H18FN3O3 The following contents are mentioned in the article:

The biogenic method for synthesis of nanoparticles is preferred over the traditional strategies, on account of its ease, environmental friendliness, and cost-effectivity, wherein fungi endorse themselves to be the most appropriate precursor for the same. In recent times numerous metal nanoparticles have been reported to exhibit significant therapeutic activities, out of which Zinc Oxide nanoparticles (ZnO NPs) stand apart on account of their multidimensional nature. Thus, this study was carried out with an aim to biosynthesize ZnO NPs utilizing endophyte Trichoderma viride, isolated from the seeds of Momordica charantia. The physicochem. characterization of NPs was done via employing a combination of spectroscopic and microscopic techniques. The NPs were found to have a hexagonal shape and possessed an average particle size of around 63.3 nm. The antimicrobial activity of NPs was evaluated against multi-drug resistant organisms and it was observed to be an appreciable one whereas the antioxidant activity was deduced to be dose-dependent. Thus, these ZnO NPs can be considered as a probable active ingredient of any future therapeutic conceptualization after undertaking a thorough toxicol. assessment. This study involved multiple reactions and reactants, such as 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7COA of Formula: C16H18FN3O3).

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7) belongs to piperazine derivatives. A form in which piperazine is commonly available industrially is as the hexahydrate, C4H10N2. 6H2O, which melts at 44 °C and boils at 125–130 °C. Outside the body, piperazine has a remarkable power to dissolve uric acid and producing a soluble urate, but in clinical experience it has not proved equally successful. COA of Formula: C16H18FN3O3

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

Molecularly imprinted electrochemical sensor based on multi-walled carbon nanotubes for specific recognition and determination of chloramphenicol in milk was written by Geng, Lingjun;Huang, Jingcheng;Zhai, Hongguo;Shen, Zheng;Han, Jie;Yu, Yanyang;Fang, Honggang;Li, Falan;Sun, Xia;Guo, Yemin. And the article was included in Microchemical Journal in 2022.Name: 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid The following contents are mentioned in the article:

A molecularly imprinted electrochem. sensor of chloramphenicol (CAP) with high sensitivity and good selectivity is introduced in this paper. Glassy carbon electrode (GCE) was modified by chitosan-multiwalled carbon nanotubes (CS-MWCNTs), the CS could improve the dispersion of MWCNTS, and the MWCNTS could significantly improve the current response of the sensor, thus improving the sensitivity. CAP was used as a template mol. and o-phenylenediamine (o-PD) was used as a functional monomer, resp. Molecularly imprinted polymers (MIPs) were prepared on the surface of a GCE modified with CS-MWCNTs by electro-polymerization The MIPs provided specific recognition sites for the detection of chloramphenicol. The exptl. parameters such as polymerization cycle, concentration ratio of template mol. to functional monomer, supporting electrolyte pH and incubation time were optimized. Under optimized exptl. conditions, the sensor has a linear range of 0.1-1000 ng/mL and the limit of detection (LOD) of 3.3 x 10-2 ng/mL (S/N = 3). The sensor had high selectivity, good stability and reproducibility for the detection of CAP, and it has been successfully used for the determination of CAP in real spiked milk samples. This study involved multiple reactions and reactants, such as 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7Name: 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid).

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7) belongs to piperazine derivatives. The piperazine scaffold is often found in biologically active compounds in different therapeutic areas. These therapeutic areas include antifungals, antidepressants, antivirals, and serotonin receptor (5-HT) antagonists/agonists. Piperazine is an anthelminthic especially useful in the treatment of partial intestinal obstruction caused by Ascaris worms, which is a condition primarily seen in children. Piperazine hydrate and piperazine citrate are the main anthelminthic piperazines.Name: 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid

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

Enhanced ratiometric fluorescence molecularly imprinted nanosensor based on CDs for selective and visual detection of NOR in water samples was written by Wu, Tongfei;Hu, Bo;Lv, Jie;Li, Yunhui;Shao, Jing;Ma, Yuqin;Cui, Yuan. And the article was included in Optical Materials (Amsterdam, Netherlands) in 2022.Category: piperazines The following contents are mentioned in the article:

Norfloxacin plays an indispensable part in the field of the medical industry, stock raising, and aquaculture. However, excessive use of NOR can induce serious harmful effects on humans and antibiotic resistance of organisms. In this work, a novel fluorescence-enhanced ratiometric fluorescence imprinted sensor was constructed and used to realize selective and accurate detection of NOR. CdTe quantum dots encapsulated in silicon dioxide acted as the reference signal and CDs doped in the imprinted layer as the response signal. Under optimal conditions, NOR rapidly enhanced the fluorescence of CdTe@SiO₂@FMIPs at 435 nm with 1 min and exhibited excellent linear relationships between the fluorescence enhancement efficiency and the NOR concentration over 10-90 nM with a detection limit of 3.28 nM. Due to the interaction of NOR and CDs through hydrogen bonding as well as π-π conjugation, the visual detection for NOR was achieved by distinguishing the color change from red to bright blue. Satisfied recovery rates of 93.4%-107.7% and RSD of 2.0%-3.6% were gained by actual sample experiments Furthermore, CdTe@SiO₂@FMIPs made it possible to reuse at least 5 times. This study involved multiple reactions and reactants, such as 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7Category: piperazines).

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7) belongs to piperazine derivatives. Piperazine belongs to the family of medicines called anthelmintics. Piperazine and its salts did not induce point mutations in a bacterial test. A series of mutagenicity studies in cells, both in vitro and in vivo, has been completed and showed no evidence of mutagenic effect.Category: piperazines

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

A novel amorphous porous biochar for adsorption of antibiotics: Adsorption mechanism analysis via experiment coupled with theoretical calculations was written by Zhang, Yang;Cheng, Long;Ji, Yuanhui. And the article was included in Chemical Engineering Research and Design in 2022.Synthetic Route of C16H18FN3O3 The following contents are mentioned in the article:

High-performance activated carbons are crucial for adsorbing antibiotics in water environment. In this work, amorphous porous biochars (APBCs) with high sp. surface area (935 m²·g^-1) were achieved by using sesame straw. Compared with the conventional biochars precursor, sesame straw with the advantages of rich resources and low price is more economical and environmentally friendly. Moreover, KOH and Ca(OH)2 were selected as co-activators, which characterization results revealed that co-activators significantly increased the coarseness of activated carbon surface and enlarged pore structure. In addition, the adsorption mechanism of norfloxacin (NOR), ciprofloxacin (CIP) and enrofloxacin (ENR) on APBCs were further investigated by experiments and d. functional theory (DFT) calculations The results discovered that pseudo second-order kinetics and Sips model followed the adsorption experiment data, implying that the adsorption process was heterogeneous and multilayer. And the interactions between APBCs and antibiotics were electrostatic interaction, hydrogen bond and π-π interaction, which were conducive to chem. adsorption. This study involved multiple reactions and reactants, such as 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7Synthetic Route of C16H18FN3O3).

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7) belongs to piperazine derivatives. Piperazine is a fairly basic compound and is an amine solvent. Two common salts in the form of which piperazine is usually prepared for pharmaceutical or veterinary purposes are the citrate, 3C4H10N2.2C6H8O7 (i.e. containing 3 molecules of piperazine to 2 molecules of citric acid), and the adipate, C4H10N2.C6H10O4 (containing 1 molecule each of piperazine and adipic acid).Synthetic Route of C16H18FN3O3

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

Effective norfloxacin elimination via photo-Fenton process over the MIL-101(Fe)-NH₂ immobilized on α-Al₂O₃ shee was written by Zhao, Qian;Wang, Chong-Chen;Wang, Peng. And the article was included in Chinese Chemical Letters in 2022.Formula: C16H18FN3O3 The following contents are mentioned in the article:

MIL-101(Fe)-NH₂@Al₂O₃ (MA) catalysts were successfully synthesized by reactive seeding (RS) method on α-Al₂O₃ substrate, which demonstrated excellent photo-Fenton degradation performance toward fluoroquinolone antibiotics (i.e., norfloxacin, ciprofloxacin, and enrofloxacin). The structure and morphol. of the obtained MA were characterized by transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), at. force microscope (AFM). The as-prepared MA could accomplish > 90% of norfloxacin degradation efficiency for 10 cycles’ photo-Fenton processes, owing to its excellent chem. and water stability. In addition, the effects of operational factors including H₂O₂ concentration, foreign ions, and pH on the photo-Fenton degradation of norfloxacin over MA were clarified. The ESR spectra further document that ·O₂^–, ¹O₂ and ·OH radicals are prominent in the decomposition process of antibiotic mols. Finally, the plausible photo-Fenton norfloxacin degradation mechanisms were proposed and verified. This study involved multiple reactions and reactants, such as 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7Formula: C16H18FN3O3).

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7) belongs to piperazine derivatives. A form in which piperazine is commonly available industrially is as the hexahydrate, C4H10N2. 6H2O, which melts at 44 °C and boils at 125–130 °C. Piperazines are very broad chemical group, covering a wide range of drugs from antidepressants to antihistamines. The connecting property of all these chemicals is the presence of a piperazine functional group.Formula: C16H18FN3O3

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

A (GTG)₅ PCR fingerprinting of multidrug resistant Escherichia coli bacteria isolates from hospital in Ouagadougou, Burkina Faso was written by Kabore, Boukare;Ouedraogo, Ganame Abasse;Cisse, Hama;Ouedraogo, Henri S.;Sampo, Emmanuel;Zongo, Koudbi Jacob;Zeba, Boukare;Traore, Yves;Gnankine, Olivier;Sanou, Idrissa;Savadogo, Aly. And the article was included in BMC Microbiology in 2022.Related Products of 70458-96-7 The following contents are mentioned in the article:

Escherichia coli (E. coli) is the most common bacterial species implicated in various types of infections including septicemia, gastroenteritis, urinary tract infections, meningitis and others pathologies. These involve several bacterial clones with multidrug resistance making them difficult to treat. The aims of this study was to perform mol. typing of E. coli strains using universal primer (GTG)₅. In this study, 53 E. coli strains were collected from inpatients and outpatients. The test of antimicrobial sensibility was realized using CA-SFM /EUCAST method and strains were identified by conventional microbiol. tests. The carbapenemase-producing strains were demonstrated by phenotypic method. Bacterial DNA was extracted by boiling method. (GTG)₅-PCR was used for strain subtyping. The DendroUPGMA software was used for grouping of strains from the genetic fingerprints obtained by (GTG)₅-PCR. Antibiotic susceptibility test revealed that all strains were multi-drug resistant (MDR). Its strains showed resistance to at least three different families of antibiotics. Of this MDR strains, only one was a metallo-β-lactamase producer. The dendrogram obtained using genetic fingerprinting allowed the E. coli strains to be grouped into 22 clusters (G1 to G22). The (GTG)₅-PCR assay enabled rapid mol. typing of E. coli strains. The strains of E. coli typed in this study would belong to different clones. This study involved multiple reactions and reactants, such as 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7Related Products of 70458-96-7).

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7) belongs to piperazine derivatives. The piperazine scaffold is often found in biologically active compounds in different therapeutic areas. These therapeutic areas include antifungals, antidepressants, antivirals, and serotonin receptor (5-HT) antagonists/agonists. Outside the body, piperazine has a remarkable power to dissolve uric acid and producing a soluble urate, but in clinical experience it has not proved equally successful. Related Products of 70458-96-7

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

Efficient and synergistic degradation of fluoroquinolones by bacteria and microalgae: Design of environmentally friendly substitutes, risk regulation and mechanism analysis was written by Fu, Rui;Li, Xinao;Zhao, Yuanyuan;Pu, Qikun;Li, Yu;Gu, Wenwen. And the article was included in Journal of Hazardous Materials in 2022.HPLC of Formula: 70458-96-7 The following contents are mentioned in the article:

Fluoroquinolones (FQs) are widely used as antimicrobial agents, and their nonbiodegradable in sewage has become an increasingly concerning. High-biochem. substitutes of FQs were designed with bacteria and microalgae as driving forces of biodegradation, and this is the first study on efficient synergistic degradation of FQs by multiple microorganisms. Among 143 designed FQ substitutes, only one was screened with high biodegradability (increased by 120.51%), improved functional properties (genotoxicity: 13.66%), less environmental impacts (bio-accumulation: -44.81%), less human health and ecol. risk (hepatotoxicity: -106.21%). The complex functional protein with the synergistic degradation effect of bacteria and microalgae was constructed, which proved their synergistic degradation and realized the effect of ‘1 + 1 > 2’. The best risk regulation scheme determined using mol. dynamics simulation proved the degradation ability of complex functional protein and found the CIP-129 was easy to be degraded in real environment compared with CIP, and the degradation rate increased by 70.42%. The synthesis path of CIP-129 and CIP were inferred and calculated, and the results showed the Gibbs free energies of three CIP-129 synthetic paths (40.64 a.u.; 40.61 a.u.; 40.65 a.u.) were close to the energy required for the CIP (39.43 a.u.), indicating there was no significant difference in the energy consumption of CIP-129 in laboratory synthesis. This study involved multiple reactions and reactants, such as 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7HPLC of Formula: 70458-96-7).

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7) belongs to piperazine derivatives. The piperazine scaffold is often found in biologically active compounds in different therapeutic areas. These therapeutic areas include antifungals, antidepressants, antivirals, and serotonin receptor (5-HT) antagonists/agonists. Piperazine and its salts did not induce point mutations in a bacterial test. A series of mutagenicity studies in cells, both in vitro and in vivo, has been completed and showed no evidence of mutagenic effect.HPLC of Formula: 70458-96-7

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

TCS response regulator OmpR plays a major role in stress resistance, antibiotic resistance, motility, and virulence in Edwardsiella piscicida was written by Huo, Xiaoping;Du, Chunmei;Huang, Huiqin;Gu, Hanjie;Dong, Xiwen;Hu, Yonghua. And the article was included in Aquaculture in 2022.Application of 70458-96-7 The following contents are mentioned in the article:

Two-component regulatory systems (TCSs) are omnipresent in Gram-neg. bacteria and play a major role in response to changes in environmental cues and pathogenicity. Edwardsiella piscicida is a serious pathogen of fresh and seawater aquaculture industries and has attracted increasing attention. However, extremely limited TCSs have been reported in E. piscicida. In this study, the role of response regulator OmpR which belongs to TCS EnvZ/OmpR was investigated in E. piscicida. By construction of a markerless ompR in-frame mutant strain, TX01ΔompR, we found that (i) in comparison to the wild type TX01, TX01ΔompR exhibited markedly compromised tolerance to acid stress, osmotic stress, and oxidative stress; (ii) the deletion of ompR significantly changed bacterial sensitivity to multiple antibiotics, (iii) the deficiency of ompR tremendously reduced bacterial motility, (iv) the deficiency of ompR abated bacterial colonization in host immune tissue and bacterial overall virulence. These results indicate OmpR is an important participant in E. piscicida adversity resistance and pathogenicity. As a response regulator, OmpR was demonstrated to downregulate acid resistance system cadBA and to upregulate the porin ompC and flagellum mediator flhDC. Taken together, our results illustrate that OmpR is a vital regulator that coordinates the expressions of multiple genes during the response to an adverse environment and invasion to host. This study involved multiple reactions and reactants, such as 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7Application of 70458-96-7).

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7) belongs to piperazine derivatives. Industrial applications of piperazine include the manufacture of plastics, resins, pesticides and brake fluids. Piperazines are very broad chemical group, covering a wide range of drugs from antidepressants to antihistamines. The connecting property of all these chemicals is the presence of a piperazine functional group.Application of 70458-96-7

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