Tag: M.W:100-200

Formula: C5H2Cl2N4. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 2,6-Dichloropurine, is researched, Molecular C5H2Cl2N4, CAS is 5451-40-1, about Neuroprotective potential of adenosine A1 receptor partial agonists in experimental models of cerebral ischemia. Author is Martire, Alberto; Lambertucci, Catia; Pepponi, Rita; Ferrante, Antonella; Benati, Nicholas; Buccioni, Michela; Dal Ben, Diego; Marucci, Gabriella; Klotz, Karl-Norbert; Volpini, Rosaria; Popoli, Patrizia.

Cerebral ischemia is the second most common cause of death and a major cause of disability worldwide. Available therapies are based only on anticoagulants or recombinant tissue plasminogen activator. Extracellular adenosine increases during ischemia and acts as a neuroprotective endogenous agent mainly by activating adenosine A1 receptors (A1Rs) which control calcium influx, glutamate release, membrane potential, and metabolism Accordingly, in many exptl. paradigms it has been already demonstrated that the stimulation of A1R with full agonists is able to reduce ischemia-related structural and functional brain damage; unfortunately, cardiovascular side effects and desensitization of A1R induced by these compounds have strongly limited their exploitation in stroke therapy so far. Among the newly emerging compounds, A1R partial agonists could be almost free of side effects and equally effective. Therefore, we decided to evaluate the neuroprotective potential of two A1R partial agonists, namely 2′-dCCPA and 3′-dCCPA, in in vitro and ex vivo exptl. models of cerebral ischemia. Within the exptl. paradigm of oxygen-glucose deprivation in vitro in human neuroblastoma (SH-SY5Y) cells both A1R partial agonists increased cell viability. Considering the high level of expression of A1Rs in the hippocampus and the susceptibility of CA1 region to hypoxia, we performed electrophysiol. experiments in this subfield. The application of 7 min of oxygen-glucose deprivation constantly produces an irreversible synaptic failure in all the C57Bl/6 mice hippocampal slices evaluated; both tested compounds allowed a significant recovery of synaptic transmission. These findings demonstrate that A1R and its partial agonists are still of interest for cerebral ischemia therapy. Open Science Badges : This article has received a badge for *Open Materials* because it provided all relevant information to reproduce the study in the manuscript. The complete Open Science Disclosure form for this article can be found at the end of the article. More information about the Open Practices badges can be found at https://cos.io/our-services/open-science-badges/.

There are many compounds similar to this compound(5451-40-1)Formula: C5H2Cl2N4. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Ethyl 3-bromo-2-oxopropanoate, is researched, Molecular C5H7BrO3, CAS is 70-23-5, about Synthesis, Crystal Structure, and DFT Study of a New Compound 6-(2-Fluorophenyl)-N-(p-Tolyl)Imidazo[1,2-a]Pyridine-2-Carboxamide, the main research direction is imidazopyridine preparation conformer hydrogen bond HOMO crystal structure.Application In Synthesis of Ethyl 3-bromo-2-oxopropanoate.

6-(2-Fluorophenyl)-N-(p-tolyl)imidazo[1,2-a]pyridine-2-carboxamide is an organic intermediate having both functions of azabicyclo and amide groups. In this paper, the title compound is obtained by the ring closure reaction, the Suzuki reaction, the hydrolysis and amidation reactions. The structure of the compound is confirmed by FT-IR, lH NMR, 13C NMR spectroscopy, and MS. At the same time, a single crystal of the title compound is measured by X-ray diffraction and subjected to crystallog. and conformational analyses. The mol. structure is further calculated using d. functional theory (DFT) and compared with the X-ray diffraction value. The results of the conformation anal. indicate that the mol. structure optimized by DFT is consistent with the crystal structure determined by single crystal X-ray diffraction. In addition, the mol. electrostatic potential and frontier MOs of the title compound are further investigated using DFT, revealing some physicochem. properties of the compound

There are many compounds similar to this compound(70-23-5)Application In Synthesis of Ethyl 3-bromo-2-oxopropanoate. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

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Oxazolidine – Wikipedia,
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Csenki, Janos T.; Meszaros, Adam; Gonda, Zsombor; Novak, Zoltan published the article 《Stereoselective Direct N-Trifluoropropenylation of Heterocycles with a Hypervalent Iodonium Reagent》. Keywords: azole trifluoroisopropenyl iodonium trifluoromethanesulfonate diastereoselective trifluoropropenylation; trifluoropropenyl azole preparation; Michael addition; enamines; iodonium salt; nitrogen heterocycles; trifluoromethyl.They researched the compound: 2,6-Dichloropurine( cas:5451-40-1 ).Name: 2,6-Dichloropurine. 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:5451-40-1) here.

The availability and synthesis of fluorinated enamine derivatives such as N-(3,3,3-trifluoropropenyl)heterocycles are challenging, especially through direct functionalization of the heterocyclic scaffold. Herein, a stereoselective N-trifluoropropenylation method based on the use of a bench-stable trifluoropropenyl iodonium salt was described. This reagent enabled the straightforward trifluoropropenylation of various N-heterocycles under mild reaction conditions, providing trifluoromethyl enamine type moieties with high stereoselectivity and efficiency.

There are many compounds similar to this compound(5451-40-1)Name: 2,6-Dichloropurine. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 2,6-Dichloropurine, is researched, Molecular C5H2Cl2N4, CAS is 5451-40-1, about Automated Nanomole-Scale Reaction Screening toward Benzoate Bioisosteres: A Photocatalyzed Approach to Highly Elaborated Bicyclo[1.1.1]Pentanes.Name: 2,6-Dichloropurine.

Through the application of high-throughput nanoscale optimization, a mild, photocatalyzed, Minisci-like protocol were developed to access highly functionalized 1,3-disubstituted bicyclopentanes. The benzoate-isosteric compounds were prepared using a readily available organic photocatalyst, mitigating the need for precious metals. The strategy described furnished products in synthetically useful yields and were demonstrated to be executable in parallel medicinal chem. format.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 6-Hydroxy-2-methylpyrimidin-4(3H)-one( cas:1194-22-5 ) is researched.Reference of 6-Hydroxy-2-methylpyrimidin-4(3H)-one.Wu, Yiwen; Mei, Heshan; Zhang, Zhongmin; Lu, Xinying; Yan, Tingren published the article 《Synthesis of antihypertensive moxonidine》 about this compound( cas:1194-22-5 ) in Zhongguo Yaowu Huaxue Zazhi. Keywords: moxonidine preparation antihypertensive. Let’s learn more about this compound (cas:1194-22-5).

Moxonidine was synthesized from acetamidine hydrochloride by cyclizing with di-Et malonate in the presence of Na ethoxide under refluxing for 3 h, nitrifying, chlorinating with POCl3, reducing with Fe/HCl, adding and hydrogenating with 1-acetyl-2-imidazolidone, and methanolysis. The overall yield was 24.8%. The yield of chlorination was 92.8% by using phosphorus oxychloride as the chlorinating agent. The yield of reduction was 87.7% by using iron powder as the reductant and steam distillation as separation method.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

Quality Control of 6-Hydroxy-2-methylpyrimidin-4(3H)-one. 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. Compound: 6-Hydroxy-2-methylpyrimidin-4(3H)-one, is researched, Molecular C5H6N2O2, CAS is 1194-22-5, about Reaction kinetics and process optimization for nitration of 2-methyl-4,6-dihydroxy-pyrimidine.

1,1-Diamino-2,2-dinitroethene (FOX-7) is a thermally stable insensitive high explosive. Fox-7 is synthesized by nitration of 2-methyl-4,6-dihydroxy-pyrimidine (MDP). Nitration of MDP is a low temperature and highly exothermic reaction. Adiabatic rise in temperature of this nitration reaction is very high (> 220°) which indicates that the conduct of reactions at lowest possible optimum temperature is safer and favorable. In order to optimize the reaction time without compromising yield, the reaction kinetics were studied at three different temperatures (5, 15, and 25°) using differential method. The effect of temperature on yield (%) of FOX-7 was also studied at two more addnl. temperatures, 35 & 42°. Since the nitration of MDP is sensitive to temperature, rate of reaction was studied at fixed temperature with the variation of time keeping all the other parameters constant In the present studies, it is found that optimum temperature of nitration is 15° and rate of reaction follows pseudo second order with a rate constant 0.0338 (min-1) (concentration-1). The reaction time evaluated for 85% conversion is around 1.8 h at 15° based on the kinetics, which resembles to calorimetric studies too. Activation energy of MDP nitration is found to be 42 kJ/mol, using reaction kinetic data based on temperature dependent rate equation derived from the Arrhenius’s law. Heat generation rate increases with the increase of reaction temperature

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Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

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 Crystal engineering with pyrazolyl-thiazole derivatives: structure-directing role of π-stacking and σ-hole interactions, published in 2021, which mentions a compound: 70-23-5, Name is Ethyl 3-bromo-2-oxopropanoate, Molecular C5H7BrO3, Product Details of 70-23-5.

The synthesis and X-ray characterization of 1-(2-(3-(4-bromophenyl)-5-(4-methoxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl)-4-methylthiazol-5-yl)ethanone (7), Et 2-(5-(4-bromophenyl)-3-(4-chlorophenyl)-4,5-dihydropyrazol-1-yl)thiazole-4-carboxylate (8) and 2-(5-(4-chlorophenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)-N’-(2-hydroxy-3-methoxybenzylidene)thiazole-4-carbohydrazide (10) are described in this manuscript. The structure-directing role of a variety of noncovalent interactions has been analyzed energetically using DFT calculations and Hirshfeld surface anal. Moreover, the existence and importance of halogen and chalcogen bonding interactions have been analyzed by using the quantum theory of atoms in mols. and the noncovalent interaction index (NCIplot).

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Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

Name: 6-Hydroxy-2-methylpyrimidin-4(3H)-one. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 6-Hydroxy-2-methylpyrimidin-4(3H)-one, is researched, Molecular C5H6N2O2, CAS is 1194-22-5, about Electrochemical study of catechols in the presence of 4,6-dihydroxy-2-methylpyrimidine. Author is Fakhari, Ali Reza; Nematollahi, Davood; Moghaddam, Abdolmajid Bayandori.

Electrochem. oxidation of catechol, 3-methylcatechol, and 3-methoxycatechol was studied in the presence of 4,6-dihydroxy-2-methylpyrimidine (I) as a nucleophile in aqueous solution using cyclic voltammetry and controlled-potential coulometry. The quinones derived from the catechols participate in Michael addition reactions with I to form the corresponding benzofuro[2,3-d]pyrimidine derivatives (II). The electrochem. synthesis of II was successfully performed in an undivided cell in good yield and purity. The mechanism of oxidation was deduced from voltammetric data and by coulometry at controlled-potential. The products were characterized after purification by IR, 1H NMR, 13C NMR and MS.

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Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Ethyl 3-bromo-2-oxopropanoate, is researched, Molecular C5H7BrO3, CAS is 70-23-5, about New BI and TRI-Thiazole copper (II) complexes in the search of new cytotoxic drugs against breast cancer cells.Recommanded Product: Ethyl 3-bromo-2-oxopropanoate.

New thiazolyl derivatives (BT and TT) and their copper (II) complexes [Cu2Cl2(BT)2] (Cu-BT) and [Cu4ClO2(TT)2]PF6·3.5H2O (Cu-TT) were synthesized and characterized by elemental anal., 1H NMR and 13C NMR, HRMS, X-ray diffraction, IR and UV-Vis spectroscopies. The crystal structure of Cu-BT shows the formation of a dinuclear complex where each copper(II) center is bonded to two thiazol N atoms, from different BT ligands, one deprotonated amide N atom, an O atom from the ester terminal groups and a chlorine atom. The structure found for Cu-TT is a pos. charged tetranuclear moiety containing two deprotonated TT ligands, a chlorine anion, two hydroxide anions acting as bridges between the copper centers and a water mol. The cytotoxic activity of both copper complexes was evaluated on metastatic breast cancer cell lines, characterized for its rapidly dividing behavior. Both, Cu-BT and Cu-TT, show higher cytotoxic activity against these tumor cells than free BT and TT and also than cisplatin. In addition, we found that both complexes interact with DNA. Consistently, they also show cytotoxicity against a rapidly dividing non-tumor cell line, although with higher IC50, being such interaction and selectivity an indicator of the possible coexistence of more than one mechanism of action.

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Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 1194-22-5, is researched, SMILESS is CC1=NC(=CC(N1)=O)O, Molecular C5H6N2O2Journal, European Journal of Organic Chemistry called Synthesis, Characterization, and Properties of Energetic Compounds Based on a CH2-Bridged Dinitromethyl Explosophore, Author is Huang, Haifeng; Shi, Yameng; Yu, Yao; Yang, Jun, the main research direction is energetic salt TNP thermal stability detonation performance formation heat.Recommanded Product: 6-Hydroxy-2-methylpyrimidin-4(3H)-one.

A series of energetic salts based on the 1,1,3,3-tetranitropropane-1,3-diide (TNP) dianion have been prepared and fully characterized by NMR and IR spectroscopy, elemental anal., and single-crystal X-ray diffraction. Their thermal stability (Td = 111.0-180.9 °C) and sensitivities to mech. stimuli (IS = 2-5 J; FS = 80-128 N) have been measured. Addnl., their heats of formation (-369.8 to 347.1 kJ mol-1) and detonation performances (P = 25.0-37.0 GPa; vD = 7675-9104 m s-1) have been calculated

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Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem