Category: 1878-68-8

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. 1878-68-8, Name is 4-Bromophenylacetic acid, molecular formula is , belongs to phthalazines compound. In a document, author is El-Helby, Abdel-Ghany A., COA of Formula: C8H7BrO2.

Design, Synthesis, Molecular Docking, and Anticancer Activity of Phthalazine Derivatives as VEGFR-2 Inhibitors

Novel series of phthalazine derivatives 6-11 were designed, synthesized, and evaluated for their anticancer activity against two human tumor cell lines, HCT-116 human colon adenocarcinoma and MCF-7 breast cancer cells, targeting the VEGFR-2 enzyme. Compounds 7a,b and 8b,c showed the highest anticancer activities against both HCT116 human colon adenocarcinoma cells with IC50 of 6.04 +/- 0.30, 13.22 +/- 0.22, 18 +/- 0.20, and 35 +/- 0.45M, respectively, and MCF-7 breast cancer cells with IC50 of 8.8 +/- 0.45, 17.9 +/- 0.50, 25.2 +/- 0.55, and 44.3 +/- 0.49M, respectively, in comparison to sorafenib as reference drug with IC50 of 5.47 +/- 0.3 and 7.26 +/- 0.3M, respectively. Eleven compounds in this series were further evaluated for their inhibitory activity against VEGFR-2, where compounds 7a, 7b, 8c, and 8b also showed the highest VEGFR-2 inhibition with IC50 of 0.11 +/- 0.01, 0.31 +/- 0.03, 0.72 +/- 0.08, and 0.91 +/- 0.08M, respectively, in comparison to sorafenib as reference ligand with IC50 of 0.1 +/- 0.02. Furthermore, molecular docking studies were performed for all synthesized compounds to predict their binding pattern and affinity towards the VEGFR-2 active site, in order to rationalize their anticancer activity in a qualitative way.

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 1878-68-8, in my other articles. COA of Formula: C8H7BrO2.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.1878-68-8, Name is 4-Bromophenylacetic acid, SMILES is OC(=O)CC1=CC=C(Br)C=C1, belongs to phthalazines compound. In a document, author is Savjani, Nicky, introduce the new discover, SDS of cas: 1878-68-8.

Bis(iminopyridyl)phthalazine as a sterically hindered compartmental ligand for an M-2 (M = Co, Ni, Fe, Zn) centre; Applications in ethylene oligomerisation

The new bis(iminopyridyl)phthalazine ligand, 1,4-{(2,6-i-Pr2C6H3)N=CMe)C5H3N}(2)C8H4N2 (L), has been prepared in good yield using a combination of palladium-mediated cross coupling and condensation strategies. Reaction of L with three equivalents of CoX2 (X = Cl, Br) in n-BuOH at elevated temperature generates, on crystallisation from bench acetonitrile, the paramagnetic tetrahalocobaltate salts [(L) Co2X(mu-X)(NCMe)(m)(OH2)(n)](CoX4) (X = Cl, m = 2, n = 1 1a; X = Br, m = 2, n = 0 1b) as acetonitrile or mixed acetonitrile/aqua adducts; a similar product is obtained from the reaction of FeCl2 with L and has been tentatively assigned as [(L)Fe2Cl(mu-Cl)(OH2)(3)](FeCl4) (2). By contrast, reaction of L with NiX2(DME) (X = Cl, Br; DME = 1,2-dimethoxyethane), under similar reaction conditions, affords the halide salts [(L) Ni2X2(mu-X)(OH2)(2)](X) (X = Cl 3a, X = Br 3b) as aqua adducts. Structural determinations on 1 and 3 reveal L to adopt a bis(tridentate) bonding mode allowing the halide-bridged metal centres to assemble in close proximity (M center dot center dot center dot M range: 3.437-3.596 angstrom). Unexpectedly, on reaction of L with ZnCl2, the neutral bimetallic [(L) Zn2Cl4] (4b) complex is formed in which the ZnCl2 units fill inequivalent binding sites within L (viz. the N-phth,N-py,N-im and N-py,N-im pockets). Complex 4b could also be obtained by the sequential addition of ZnCl2 to L to form firstly monometallic [(L) ZnCl2] (4a) and then on further ZnCl2 addition 4b; the fluxional behaviour of diamagnetic 4a and 4b is also reported. On activation with excess methylaluminoxane (MAO), 1-3 display modest activities for ethylene oligomerisation forming low molecular weight waxes with methyl-branched products predominating for the nickel systems (3). On the other hand, the iron catalyst (2) gives exclusively alpha-olefins while the cobalt systems (1) are much less selective affording equal mixtures of alpha-olefins and internal olefins along with lower levels of vinylidenes and tri-substituted alkenes. Single crystal X-ray structures are reported for L, 1a, 1b, 3a, 3b and 4. (C) 2015 Elsevier B.V. All rights reserved.

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 1878-68-8 is helpful to your research. SDS of cas: 1878-68-8.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Electric Literature of 1878-68-8, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 1878-68-8, Name is 4-Bromophenylacetic acid, SMILES is OC(=O)CC1=CC=C(Br)C=C1, belongs to phthalazines compound. In a article, author is Bolteau, Raphael, introduce new discover of the category.

Quinazoline and phthalazine derivatives as novel melatonin receptor ligands analogues of agomelatine

For further development of successors of Agomelatine through modulation of its pharmacokinetic properties, we report herein the design, synthesis and pharmacological results of a new family of melatonin receptor ligands. Issued from the introduction of quinazoline and phthalazine scaffolds carrying an ethyl amide lateral chain and a methoxy group as bioisosteric ligands analogues of previously developed Agomelatine. The biological activity of the prepared analogues was compared with that of Agomelatine. Quinazoline and phthalazine rings proved to be a versatile scaffold for easy feasible MT1 and MT2 ligands. Potent agonists with sub-micromolar binding affinity were obtained. However, the presence of two nitrogen atoms resulted in compounds with lower affinity for both MT1 and MT2, in comparison with the parent compound, balanced by the exhibition of good pharmacokinetic properties. (C) 2020 Elsevier Masson SAS. All rights reserved.

Electric Literature of 1878-68-8, 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 1878-68-8 is helpful to your research.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Synthetic Route of 1878-68-8, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 1878-68-8, Name is 4-Bromophenylacetic acid, SMILES is OC(=O)CC1=CC=C(Br)C=C1, belongs to phthalazines compound. In a article, author is Zaky, Omnyia Said, introduce new discover of the category.

Glycerol: A Promising Benign Solvent for Catalyst-free One-pot Multi-component Synthesis of 1H-Pyrozolo[1,2-b]phthalazine-5,10-diones and 2H-Indazolo[2,1-b]phthalazine-triones Under Controlled Microwaves Irradiation

A simple green and efficient one-pot multi-component synthesis of 1H-pyrozolo[1,2-b]phthalazine-5,10-diones and 2H-indazolo[2,1-b]phthalazine-triones has been developed utilizing one-pot multi-component reaction of aromatic aldehydes, active methylene reagents, phthalic anhydride, and hydrazine hydrate or alternatively phthalhydrazide in glycerol without catalyst under controlled microwave heating. The current synthetic protocol offers several advantages such as excellent yields, high EcoScale and atom economy, simple working up reactants and products, and the absence of hazardous catalysts or solvents.

Synthetic Route of 1878-68-8, One of the oldest and most widely used commercial enzyme inhibitors is aspirin, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 1878-68-8.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Application of 1878-68-8, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C¨CH bond functionalisation has revolutionised modern synthetic chemistry. 1878-68-8, Name is 4-Bromophenylacetic acid, SMILES is OC(=O)CC1=CC=C(Br)C=C1, belongs to phthalazines compound. In a article, author is Wang, Yuxiang, introduce new discover of the category.

Cascade Oxidation/Halogenoaminocyclization Reaction of Trifluoromethylated Homoallylic N-Acylhydrazines: Metal-free Synthesis of CF3-Substituted Pyrazolines

An efficient and practical cascade oxidation/halogenoaminocyclization of trifluoromethylated homoallylic N-acylhydrazines is developed. The protocol enables an efficient access to various biologically interesting CF3-containing pyrazoline compounds from readily accessible trifluoromethylated homoallylic N-acylhydrazines in good to excellent yields under mild conditions without any other additives or catalysts. The produced pyrazoline compounds can be further manipulated to other more complicated derivatives through transformation of residual halogen atom.

Application of 1878-68-8, One of the oldest and most widely used commercial enzyme inhibitors is aspirin, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 1878-68-8.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem