Category: piperazines

Development and validation of a UV-spectrophotometric method for the estimation of Nintedanib Esylate in bulk and its formulation was written by Patil, Rohan S.;Mahajan, Moreshwar P.. And the article was included in Research & Reviews: A Journal of Pharmaceutical Science in 2018.Name: (Z)-Methyl 3-(((4-(N-methyl-2-(4-methylpiperazin-1-yl)acetamido)phenyl)amino)(phenyl)methylene)-2-oxoindoline-6-carboxylate ethanesulfonate The following contents are mentioned in the article:

The present work represents a UV spectrophotometric method for the estimation of Nintedanib Esylate in pure and its formulation. Methanol was used as a solvent. Nintedanib Esylate exhibit absorption maxima at 391 nm. The developed method obeyed Beer-Lambert’s law in the concentration range of 3-18 μg/mL having a line equation Y = 0.065x + 0.001 with a correlation coefficient of 0.999. There is no interference from any pharmaceutical excipients. The precision of the method was determined by performing the intra-day study and inter-day study. The accuracy of the method was confirmed by recovery studies from capsules at three different levels by standard additions Results of the anal. were validated statistically and by recovery study. The anal. method was validated for various parameters as per ICH (International Conference on Harmonization) guidelines. The proposed method was found to be simple, rapid, accurate and precise and can be applied for the routine quality control studies for assay of Nintedanib Esylate in pure and its formulation. This study involved multiple reactions and reactants, such as (Z)-Methyl 3-(((4-(N-methyl-2-(4-methylpiperazin-1-yl)acetamido)phenyl)amino)(phenyl)methylene)-2-oxoindoline-6-carboxylate ethanesulfonate (cas: 656247-18-6Name: (Z)-Methyl 3-(((4-(N-methyl-2-(4-methylpiperazin-1-yl)acetamido)phenyl)amino)(phenyl)methylene)-2-oxoindoline-6-carboxylate ethanesulfonate).

(Z)-Methyl 3-(((4-(N-methyl-2-(4-methylpiperazin-1-yl)acetamido)phenyl)amino)(phenyl)methylene)-2-oxoindoline-6-carboxylate ethanesulfonate (cas: 656247-18-6) 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. Intermediate for a wide range of pharmaceuticals, polymers, dyes, corrosion inhibitors, rubber accelerators and surfactants.Name: (Z)-Methyl 3-(((4-(N-methyl-2-(4-methylpiperazin-1-yl)acetamido)phenyl)amino)(phenyl)methylene)-2-oxoindoline-6-carboxylate ethanesulfonate

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

A New Discovery towards Novel Skeleton of Benzimidazole-Conjugated Pyrimidinones as Unique Effective Antibacterial Agents was written by Yang, Xi;Syed, Rasheed;Fang, Bo;Zhou, Cheng-He. And the article was included in Chinese Journal of Chemistry in 2022.Category: piperazines The following contents are mentioned in the article:

A class of new potential antibacterial agents with distinctive pyrimidinone benzimidazole skeleton was developed through nucleophilic substitution and Biginelli reaction starting from urea, Et 4-chloroacetoacetate and various aldehydes. Some target mols. exhibited strong antibacterial activities, especially pyrimidinone benzimidazole hybrid 9e possessed the strongest inhibitory effects on the growth of E. faecalis and P. aeruginosa with a lower MIC value of 1 μg/mL than norfloxacin. Moreover, compound 9e displayed strong antibiofilm capacity, low drug resistance and excellent biosafety toward human red blood cells. Further research revealed that compound 9e could disrupt membrane integrity and cause leakage of cellular components such as proteins and nucleic acids. Meanwhile, compound 9e could decrease lactate dehydrogenase activity, block cell metabolism and interact with DNA in an intercalation manner. ADMET anal. predicated that mol. 9e possessed promising pharmacokinetic properties and good bioavailability profile. 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 was first introduced as an anthelmintic in 1953. Piperazine compounds mediate their anthelmintic action by generally paralyzing parasites, allowing the host body to easily remove or expel the invading organism. Piperazine is formed as a co-product in the ammoniation of 1,2-dichloroethane or ethanolamine. These are the only routes to the chemical used commercially.Category: piperazines

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

Two dual functional 3D Cd-based coordination polymers for the highly luminescent sensitive detection of Fe³⁺ and norfloxacin was written by Cao, Qing-Lin;Fu, Lianshe;Cui, Guang-Hua. And the article was included in Journal of Solid State Chemistry in 2022.Quality Control of 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid The following contents are mentioned in the article:

Two new Cd(II) coordination polymers(CPs) [Cd_2.5(L1)(Htbip)(tbip)₂]_n (1) and {[Cd(L2)_0.5(1,4-chdc)]·H₂O}_n (2) (L1 = 1,2-bis(2-ethylbenzimidazol-1-ylmethyl)benzene, L2 = 1,4-bis(2-ethylbenzimidazol-1-ylmethyl)benzene, H₂tbip = 5-tert-butylisophthalic acid; 1,4-H₂chdc = 1,4-cyclohexanedioic acid) were hydrothermal synthesized and structural characterized. 1 Can be defined as a 3D 6,8T13 network with the point symbol of {3².4¹⁰.5².6}{3⁴.4¹².5⁸.6⁴}. 2 Reveals an unusual 3D xww-3,4-P2₁/c topol. frameworks with the point symbol of {4.8².10³}{4.8²}. Both CPs possessed highly thermal and chem. stability. 1 And 2 can be as bifunctional luminescent sensors for effective detection of Fe³⁺ and norfloxacin. 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: 70458-96-7Quality Control of 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. 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. Quality Control of 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid

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

Simultaneous screening and analysis of 155 veterinary drugs in livestock foods using ultra-high performance liquid chromatography tandem quadrupole linear-ion-trap mass spectrometry was written by Wang, Juanqiang;Zhao, Wentao;Guo, Wenping;Li, Yingying;Jiang, Rui;Li, Huichen;Wang, Shouwei;Li, Zhigang. And the article was included in Food Chemistry in 2022.Reference of 70458-96-7 The following contents are mentioned in the article:

Veterinary drugs are widely used to improve the health and growth of livestock. The supervision of these residues is necessary to ensure food safety. A high-throughput method based on Oasis PRiME HLB with solid phase extraction for simultaneous qual. and quant. anal. of 155 veterinary drugs in livestock foods was developed by the ultra-high performance liquid chromatog. tandem quadrupole linear-ion-trap mass spectrometry (UHPLC-QTRAP-MS). The limits of detection and quantification ranged from 0.5 μg/kg to 5 μg/kg and 2 μg/kg to 20 μg/kg, resp. For over 85% of the analytes, the recoveries were between 60% and 120%. The pos. simulated samples perfectly matched with a purity fit value over 70% from the self-built library. The screening results of UHPLC-QTRAP-MS were almost consistent with UHPLC tandem quadrupole-exactive orbitrap mass spectrometry (UHPLC-Q-Exactive Orbitrap/MS). The evaluated UHPLC-QTRAP-MS method was powerful and reliable for the screening and quantification of veterinary drugs in real 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: 70458-96-7Reference 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. Piperazine belongs to the family of medicines called anthelmintics. 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. Reference of 70458-96-7

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

The preparation of 1-Methyl-3-phenylpiperazine was written by Guan, Cheng-bo;Zhang, Xue-mei;Wei, Meng;Lai, Kun-min;Yu, Zhang-xin;Yan, Zhao-hua. And the article was included in Nanchang Daxue Xuebao, Likeban in 2012.Quality Control of tert-Butyl 3-oxo-2-phenylpiperazine-1-carboxylate The following contents are mentioned in the article:

1-Methyl-3-phenylpiperazine was prepared by using Et α-Bromophenylacetate and ethylenediamine as the starting materials in the cyclization. Then with N₄ protection of the Boc group, N1 methylation, N₄ deprotection and reduction of amide group, 1-Methyl-3-phenylpiperazine was synthesized. The total yield is 29%. On the basis of previously reported procedure, we further modified the work-up procedure in the first step of cyclization to increase the production quality and efficiency. The modification included dissolution of the crude product obtained in CH₂Cl₂, and subsequent reactions with a limited amount of di-tert-butyldicarbonate followed by precipitation in THF at low temperature Our modification improved the quality of the intermediate 3-phenyl-2-piperazinone and is easily repeatable. Moreover, in the steps of N₄ protection with Boc group and reduction of amide group, some changes were also made for easy application to industrial manufacturing This study involved multiple reactions and reactants, such as tert-Butyl 3-oxo-2-phenylpiperazine-1-carboxylate (cas: 911705-40-3Quality Control of tert-Butyl 3-oxo-2-phenylpiperazine-1-carboxylate).

tert-Butyl 3-oxo-2-phenylpiperazine-1-carboxylate (cas: 911705-40-3) 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. 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.Quality Control of tert-Butyl 3-oxo-2-phenylpiperazine-1-carboxylate

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

2D lanthanide coordination polymers as multi-responsive luminescence sensors for selective and sensitive recognition of Cr(VI)/MnO^–₄ anions and broad-spectrum detection of antibiotics was written by Yuan, Gang;Chen, Zi-Qi;Zhang, Chao;Xie, Zi-Yu;Liu, Shi-Yu;Meng, Xiao-Hang;Sun, Jing-Yu;Li, Xiu-Mei;Dong, Li-Hong;Hao, Xiang-Rong. And the article was included in Journal of Solid State Chemistry in 2022.Quality Control of 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid The following contents are mentioned in the article:

Three new Ln(III)-CPs, {[Ln₂(HL)₂(H₂O)₂]·H₂O}_n (Ln = La (1), Eu (2) and Tb (3); H₄L = 1,1′-(ethane-1,2-diyl)bis(1H-imidazole-4,5-dicarboxylic acid)) were hydrothermally synthesized and characterized by elemental analyses, IR, TG, PXRD and single-crystal x-ray diffraction. These isostructural CPs display 2D layer-like structures with a TiS₂ topol. constructed from inter-connected cage-like SBBs. The Eu-CP and Tb-CP exhibit characteristic luminescent emissions based on metal ions and possess selective recognition ability toward Cr(VI) and MnO^–₄ ions in aqueous solution They can also act as broad-spectrum fluorescent probes to detect common antibiotics. Furthermore, the fluorescence quenching mechanisms of two CPs were also studied in detail by combination of the PXRD patterns, UV-vis absorption spectra and theor. calculations 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: 70458-96-7Quality Control of 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 formed as a co-product in the ammoniation of 1,2-dichloroethane or ethanolamine. These are the only routes to the chemical used commercially.Quality Control of 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid

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

Prevalence, Antimicrobial Susceptibility and Resistance Gene Detection in Bacteria Isolated from Goldfish and Tiger Barb from Ornamental Fish Farms of Tamil Nadu was written by Hemamalini, Nallaiah;Shanmugam, Seerappalli Aran;Kathirvelpandian, Ayyathurai;Deepak, Agarwal;Kaliyamurthi, Venkatachalam;Suresh, Eswaran;Ezhilmathi, Selvaram. And the article was included in Indian Journal of Microbiology in 2022.Computed Properties of C16H18FN3O3 The following contents are mentioned in the article:

This study aims to determine the antimicrobial resistance (AMR) pattern in freshwater ornamental cyprinids, such as Goldfish and Tiger barb. Mol. characterization of bacterial isolates confirmed the presence of 7 bacterial isolates in Goldfish and 6 in Tiger barb. Antimicrobial susceptibility test using 36 antibiotics revealed a higher resistance pattern for bacitracin, rifampicin, trimethoprim, cefalexin, ampicillin, amoxicillin, nalidixic acid and nitrofurantoin. Sulphafurazole, norfloxacin and ciprofloxacin were effective against all the bacterial isolates derived from Goldfish and Tiger barb. Most bacterial isolates exhibited > 0.2 multi-drug resistance index (MDR), indicating the severity of antibiotic use in the culture system. The finding of the present study suggests that ornamental fish may act as the reservoir of MDR bacteria and dissemination of resistance genes to clin. and human commensal bacteria through horizontal gene transfer. 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: 70458-96-7Computed Properties 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. 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. Computed Properties of C16H18FN3O3

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

Effects of antibiotics consumption on the behavior of airborne antibiotic resistance genes in chicken farms was written by Song, Lu;Jiang, Guanyu;Wang, Can;Ma, Jinbiao;Chen, Hong. And the article was included in Journal of Hazardous Materials in 2022.Application In Synthesis of 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 antibiotics and antibiotic resistance genes (ARGs) have caused pollution of livestock farm environments. There are limited investigations about airborne ARGs and what role the antibiotics play remains largely unclear. The dynamics of various antibiotics were compared between feces samples from chicken fed a diet with and without antibiotics. In contrast to the farm with no antibiotics drugs, the hazard quotients (HQs) of OTC (24.8-205.4) and CTC (18.0-317.0) are particularly high in the farm with in-feed antibiotics drugs. The high ecol. risks of antibiotics in chicken feces with in-feed antibiotic drugs were 100% as determined We quantified mobile genetic elements (MGEs) and ARGs and investigated bacterial communities in feces and air samples. The concentration of airborne ARG/MGE subtypes with in-feed antibiotic drugs is about two orders of magnitude higher than those without drugs. This study reveals that the indoor air of chicken farms is a reservoir of ARGs in the environment. Continuous feeding of antibiotics can change the intestinal microbial community structure of the chicken. The possibility of horizontal gene transfer of ARGs in air and feces samples might be increased by in-feed antibiotic drugs. The enrichment of ARGs in the chicken farm can be reduced by minimizing antibiotic use. 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 In Synthesis of 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. Piperazine belongs to the family of medicines called anthelmintics. Intermediate for a wide range of pharmaceuticals, polymers, dyes, corrosion inhibitors, rubber accelerators and surfactants.Application In Synthesis of 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid

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

Can agricultural land use alter the responses of soil biota to antibiotic contamination? was written by Zhao, Fangkai;Yang, Lei;Yen, Haw;Yu, Xinwei;Fang, Li;Li, Min;Chen, Liding. And the article was included in Journal of Hazardous Materials in 2022.Recommanded Product: 70458-96-7 The following contents are mentioned in the article:

Antibiotics accumulate in soils via various agricultural activities, endangering soil biota that play fundamental roles in maintaining agroecosystem function. However, the effects of land-use heterogeneity on soil biota tolerance to antibiotic stresses are not well understood. In this study, we explored the relationships between antibiotic residues, bacterial communities, and earthworm populations in areas with different land-use types (forest, maize, and peanut fields). The results showed that antibiotic levels were generally higher in maize and peanut fields than in forests. Furthermore, land use modulated the effects of antibiotics on soil bacterial communities and earthworm populations. Cumulative antibiotic concentrations in peanut fields were neg. correlated with bacterial diversity and earthworm abundance, whereas no significant correlations were detected in maize fields. In contrast, antibiotics improved bacterial diversity and richness in forest soils. Generally, earthworm populations showed stronger tolerance to antibiotics than did soil bacterial communities. Agricultural land use differentially modified the responses of the soil bacterial community and earthworm population to antibiotic contamination, and earthworms might provide an alternative for controlling antibiotic contamination. 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: 70458-96-7Recommanded Product: 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. 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. 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.Recommanded Product: 70458-96-7

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

Liquid-liquid microextraction with hydrophobic deep eutectic solvent followed by magnetic phase separation for preconcentration of antibiotics was written by Pochivalov, Aleksei;Cherkashina, Ksenia;Sudarkin, Andrey;Osmolowsky, Mikhail;Osmolovskaya, Olga;Krekhova, Firuza;Nugbienyo, Lawrence;Bulatov, Andrey. And the article was included in Talanta in 2023.Category: piperazines The following contents are mentioned in the article:

This study describes a miniaturized approach for liquid-liquid microextraction based on mass transfer into low volume of deep eutectic solvent and magnetic phase separation, using specially produced magnetic chromium dioxide nanoparticles with a hydrophobic surface layer of fatty acids. The nanoparticles modified with fatty acid helped to recover low volumes of viscous hydrophobic deep eutectic solvent-based extract reproducibly and easily (up to 10 μL) in a microextraction procedure with the application of magnetic forces. It was demonstrated that the collector properties depend on nanoparticles′ surface and magnetic characteristics. The developed approach was implemented for the separation and preconcentration of trace fluoroquinolone antibiotics from environmental waters prior to their determination by high-performance liquid chromatog. with fluorometric detection as a model anal. task. The limits of detection, calculated from a blank test based on 3σ, were 0.01 μg L^-1 for ofloxacin, 0.02 μg L^-1 for lomefloxacin and fleroxacin, and 0.04 μg L^-1 for norfloxacin. The procedure provides significant solvent reduction and high enrichment factors. The approach is green, which is proved by the anal. eco-scale assessment tool with the total score equal to 85 out of 100. 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. Intermediate for a wide range of pharmaceuticals, polymers, dyes, corrosion inhibitors, rubber accelerators and surfactants.Category: piperazines

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