Category: 3326-71-4

Ferreira, Ricardo J.; Gajdacs, Mario; Kincses, Annamaria; Spengler, Gabriella; dos Santos, Daniel J. V. A.; Ferreira, Maria-Jose U. published the article 《Nitrogen-containing naringenin derivatives for reversing multidrug resistance in cancer》. Keywords: preparation nitrogen containing naringenin derivative reversing multidrug resistance cancer; Docking; Efflux modulators; Flavonoids; Molecular dynamics; Multidrug resistance; P-glycoprotein.They researched the compound: 2-Furoic hydrazide( cas:3326-71-4 ).Application of 3326-71-4. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:3326-71-4) here.

Naringenin (1), isolated from Euphorbia pedroi, was previously derivatized yielding compounds 2-13. In this study, aiming at expanding the pool of analogs of the flavanone core towards better multidrug resistance (MDR) reversal agents, alkylation reactions and chem. modification of the carbonyl moiety was performed (15-39). Compounds structures were assigned mainly by 1D and 2D NMR experiments Compounds 1-39 were assessed as MDR reversers, in human ABCB1-transfected mouse T-lymphoma cells, overexpressing P-glycoprotein (P-gp). The results revealed that O-methylation at C-7, together with the introduction of nitrogen atoms and aromatic moieties at C-4 or C-4′, significantly improved the activity, being compounds 27 and 37 the strongest P-gp modulators and much more active than verapamil. In combination assays, synergistic interactions of selected compounds with doxorubicin substantiated the results. While mol. docking suggested that flavanone derivatives act as competitive modulators, mol. dynamics showed that dimethylation promotes binding to a modulator-binding site. Moreover, flavanones may also interact with a vicinal ATP-binding site in both nucleotide-binding domains, hypothesizing an allosteric mode of action.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Synthesis of acylhydrazone based fluorescent probe for Al (III) and its property, published in 2019, which mentions a compound: 3326-71-4, mainly applied to acylhydrazone fluorescent probe aluminum fluorometry, Application In Synthesis of 2-Furoic hydrazide.

An acylhydrazone based fluorescent probe was synthesized by two-step reaction with tetrakis(bromomethyl) benzene and 2,4-dihyoxybenzaldehyde as raw materials. The compound showed excellent selectivity for Al3+ in the V(DMSO):V (H2O) = 19:1 solution, showing remarkable fluorescence enhancement effects towards Al3+ at the emission wavelength of 446 nm. The stoichiometry of 1:2 of the Al (III) complexes was determined by Job’s plots, 1HNMR titration experiments and LC-MS anal. The spectroscopic titration indicated that the detection limits of the probe for Al3+ were 1.16 × 10-7 mol/L and the complexing constant of the probe to Al3+ was 2.28 × 10-3 L/mol. Furthermore, the probe can be used for the determination of Al3+ in the river water and tap water samples.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Glushkov, Vladimir A.; Babentsev, Dmitry N.; Dmitriev, Maksim V.; Stepanova, Kseniya A.; Kharintseva, Anastasiya Yu.; Simakhina, Anastasiya E. researched the compound: 2-Furoic hydrazide( cas:3326-71-4 ).Product Details of 3326-71-4.They published the article 《The synthesis of 3-(het)aryl-6,7-dihydro-5H-[1,2,4]-triazolo[3,4-a][2]benzazepines》 about this compound( cas:3326-71-4 ) in Chemistry of Heterocyclic Compounds (New York, NY, United States). Keywords: aryldihydrotriazolobenzazepine preparation; benzazepine hydrazide cyclization. We’ll tell you more about this compound (cas:3326-71-4).

4-Aryl-2-methylbutan-2-ols with methoxy or methylenedioxy substituents participate in the Graf-Ritter reaction with Me thiocyanate in the presence of an acid (H2SO4, MeSO3H) forming 1-methylsulfanyl-2-benzazepines in low yields (11-35%), which underwent cyclization with benzhydrazide or hetarenecarboxylic acid hydrazides upon reflux in o-dichlorobenzene into the corresponding 3-phenyl- and 3-hetaryl-6,7-dihydro-5H-1,2,4-triazolo[3,4-a][2]benzazepines I (R1 = R2 = OMe, R1+R2 = OCH2O; R3 = H, OMe; R4 = Ph, 2-furyl, 2-thienyl, 4-pyridyl) (45-74% yields).

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 2-Furoic hydrazide( cas:3326-71-4 ) is researched.Product Details of 3326-71-4.Mu, Xinyue; Shi, Liping; Yan, Liqiang; Tang, Ningli published the article 《A 2-Hydroxy-1-naphthaldehyde Schiff Base for Turn-on Fluorescence Detection of Zn2+ Based on PET Mechanism》 about this compound( cas:3326-71-4 ) in Journal of Fluorescence. Keywords: zinc hydroxynaphthaldehyde Schiff base fluorescence cell imaging; Cell imaging; Fluorescence analysis; Schiff base; Water sample; Zn2+. Let’s learn more about this compound (cas:3326-71-4).

Zinc ion is closely related to human health. Its content in human body is small, while the effect is large. However, it is not the more the better, must be in a scientific balance. Therefore, it is significant to the rapid detection of Zn2+ in the environment and organism. Herein, a fluorescent probe based on 2-hydroxy-1-naphthalene formaldehyde and furan-2-carbohydrazide was conveniently synthesized via Schiff base reaction. And this probe has been successfully applied to the accurate and quant. detection of Zn2+ in real samples, showing turn on fluorescence, good selectivity, very low detection limit, real time response and reusability. In addition, this probe has the potential application to trace Zn2+ in living cells with low cytotoxicity.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Name: 2-Furoic hydrazide. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about Nitrogen-containing naringenin derivatives for reversing multidrug resistance in cancer. Author is Ferreira, Ricardo J.; Gajdacs, Mario; Kincses, Annamaria; Spengler, Gabriella; dos Santos, Daniel J. V. A.; Ferreira, Maria-Jose U..

Naringenin (1), isolated from Euphorbia pedroi, was previously derivatized yielding compounds 2-13. In this study, aiming at expanding the pool of analogs of the flavanone core towards better multidrug resistance (MDR) reversal agents, alkylation reactions and chem. modification of the carbonyl moiety was performed (15-39). Compounds structures were assigned mainly by 1D and 2D NMR experiments Compounds 1-39 were assessed as MDR reversers, in human ABCB1-transfected mouse T-lymphoma cells, overexpressing P-glycoprotein (P-gp). The results revealed that O-methylation at C-7, together with the introduction of nitrogen atoms and aromatic moieties at C-4 or C-4′, significantly improved the activity, being compounds 27 and 37 the strongest P-gp modulators and much more active than verapamil. In combination assays, synergistic interactions of selected compounds with doxorubicin substantiated the results. While mol. docking suggested that flavanone derivatives act as competitive modulators, mol. dynamics showed that dimethylation promotes binding to a modulator-binding site. Moreover, flavanones may also interact with a vicinal ATP-binding site in both nucleotide-binding domains, hypothesizing an allosteric mode of action.

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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Ghezelbash, Zahra Dono; Motiei, Hamideh; Mahmoody, Miri; Dilmaghani, Karim Akbari published the article 《Synthesis, characterization, and nonlinear optical properties of some new series of S-(5-aryl-1,3,4-oxadiazol-2-yl)-2-chloroethanethioate derivatives》. Keywords: aryl oxadiazolyl chloroethanethioate preparation nonlinear optical property antibacterial antifungal; substituted oxadiazolethione preparation; acyl hydrazide preparation.They researched the compound: 2-Furoic hydrazide( cas:3326-71-4 ).Recommanded Product: 2-Furoic hydrazide. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:3326-71-4) here.

In the present investigation, some novel S-(5-aryl-1,3,4-oxadiazol-2-yl)-2-chloroethanethioate I [Ar = Ph, 2-ClC6H4, 2-furanyl, 2-O2NC6H4, 3-O2NC6H4] derivatives were synthesized and their impact on optical properties was studied. The nonlinear refractive indexes of compounds I were also measured in dichloromethane via Z-scan method using a continuous wave diode-pumped laser at 532 nm wavelength. The nonlinear refractive coefficient of compounds I was obtained from 1011 m2/W order. Regarding the appropriate nonlinearity of these compounds, they could be considered good candidates for biooptical and photonic applications. All the synthesized compounds I were also evaluated for their antibacterial and antifungal activities. The bioactive assay showed that the synthetic compounds displayed variable inhibition zones against tested bacterium Escherichia coli and fungus Aspergillus fumigatus in comparison to enrofloxacin and amphotericin as reference drugs, which are normally used for treating such infections. Synthesized compounds were characterized by elemental anal. and various spectroscopic methods including FTIR, 1H NMR, 13C NMR and UV-Vis techniques.

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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Shang, Zhi-Hao; Sun, Ji-Na; Guo, Jiang-Shan; Sun, Yuan-Yuan; Weng, Wei-Zhao; Zhang, Zhen-Xiao; Li, Zeng-Jing; Zhu, Yan-Ping published an article about the compound: 2-Furoic hydrazide( cas:3326-71-4,SMILESS:O=C(C1=CC=CO1)NN ).Reference of 2-Furoic hydrazide. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:3326-71-4) through the article.

An oxidative sp3 C-H bond of methyl-azaheteroarenes protocol RCH3 (R = quinolin-2-yl, benzo[f]quinolin-3-yl, pyridin-2-yl, etc.) was reported for the synthesis of 1,3,4-oxadiazoles I (R1 = 2H-1,3-benzodioxol-5-yl, furan-2-yl, prop-1-en-2-yl, etc.) via [4+1] annulation with hydrazides R1C(O)NHNH2. This protocol enables 1,3,4-oxadiazole and quinoline linked diheterocycles I via selective oxidation of sp3 C-H bond of methyl-azaheteroarenes in the presence of I2-DMSO. The reaction has a broad substrate scope and good functional group tolerance for methyl-azaheteroarenes and hydrazides.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《A simple fluorescent probe for selective detection of Al3+ based on furan Schiff base and its crystal structure》. Authors are Peng, Hua-nan; Liu, Yi-qing; Huang, Jia-qi; Huang, Shou-Shun; Cai, Xin-ping; Xu, Shu-juan; Huang, Ai; Zeng, Qiang; Xu, Miao.The article about the compound:2-Furoic hydrazidecas:3326-71-4,SMILESS:O=C(C1=CC=CO1)NN).Synthetic Route of C5H6N2O2. Through the article, more information about this compound (cas:3326-71-4) is conveyed.

A simple “”turn-on”” fluorescent probe L was synthesized by condensation of furan-2-carbohydrazide and 2-hydroxy-4-methoxybenzaldehyde, and its structure was confirmed by single crystal X-ray diffraction. The probe L exhibited excellent selectivity towards Al3+ over other coexistent metal ions with remarkable fluorescence enhancement, accompanied by color change from colorless to blue. Moreover, the probe L showed high sensitivity to Al3+ with low detection limit (3.10 x 10-8 M) in the pH range of 3.0-8.0. The possible sensing mechanisms of L toward Al3+ were determined by Job plots experiments, high resolution mass spectrometry (HRMS), 1H NMR spectra and the d. functional theory (DFT) calculations Addnl., the probe L was successfully applied for detection of Al3+ in water samples with satisfactory results.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Li, Tian-Xiao; Ji, Ling-Bo; Jiang, Zhong-Rong; Geng, Zong-Ze; Shentu, Hong-Qian; Liu, Min-Chang; Xie, Yun-Fei; Hu, Jun; Liu, Yuan-Fa; Li, Dong-Liang published an article about the compound: 2-Furoic hydrazide( cas:3326-71-4,SMILESS:O=C(C1=CC=CO1)NN ).Reference of 2-Furoic hydrazide. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:3326-71-4) through the article.

In this study, the type I caramel reactions of the glucose-water system were carried out. The glucose caramel products (GCPs) at different reaction stages were collected and the reaction rate, UV absorption, flavor compound, and the antioxidant and antibacterial activities were determined The result showed that the glucose reaction rate of the GCP yielded at 180°C and 4 min arrived at the stable range of around 80.0%. For UV absorptions of GCPs at 305 nm increased approx. in the exponential order. Moreover, the GCP yielded at 180°C and 4 min was revealed to have the highest concentration of main flavor compounds and potent antioxidant and antibacterial activities.

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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Synthesis, antimicrobial and antioxidant evaluation, and molecular docking study of 4,5-disubstituted 1,2,4-triazole-3-thiones, published in 2020-09-05, which mentions a compound: 3326-71-4, Name is 2-Furoic hydrazide, Molecular C5H6N2O2, Category: benzisoxazole.

In order to develop potential antimicrobial agents, some 1,2,4-triazole-3-thiones I (R = Et, Ph, 4-nitrophenyl, etc.; Ar = Ph, furan-2-yl, pyridin-4-yl, etc.) were synthesized from the reaction of hydrazides ArC(O)NHNH2 with isothiocyanates RN=C=S under optimized conditions in deep eutectic solvent of potassium carbonate-glycerol (1:5 M ratio). Blocking properties of all products were assessed on a variety of Gram-pos. and Gram-neg. bacterial as well as fungal pathogens. Good to excellent inhibitory effects especially against fungi were observed with all synthesized compounds Compound I (R = 4-nitrophenyl; Ar = 4-hydroxyphenyl) showed significant antioxidant activity according to the results obtained from 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging experiments The possible interaction mechanism of synthetic triazoles with 1IYL enzyme on Aspergillus fumigatus was investigated by mol. docking method. A complete agreement was found between exptl. data and theor. calculations Hydrogen bond acceptor strength of N-1 in 1,2,4-triazole rings was the main cause of the observed differences.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics