Category: ethers-buliding-blocks

Computed Properties of C10H14N2O. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about Synthesis and characterization of phosphorus-containing dendrimers bearing rhodamine derivatives as terminal groups. Author is Wei, Yiqian; Laurent, Regis; Majoral, Jean-Pierre; Caminade, Anne-Marie.

The synthesis of two new derivatives of Rhodamine B functionalized by phenols is reported. For one rhodamine derivative, the equilibrium between the open form and the ring-closed (spirolactam) form is completely shifted toward the latter, whereas the constitution of the other rhodamine derivative precludes ring closure. The spirolactam derivative was grafted as terminal group to a first generation phosphorus-containing dendrimer. Attempts to open the spirolactam form by adding HCl failed and resulted only in protonation of the NEt2 substituent of rhodamine.

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 56621-48-8, is researched, Molecular C10H14N2O, about Synthesis of propargylamine mycophenolate analogues and their selective cytotoxic activity towards neuroblastoma SH-SY5Y cell line, the main research direction is propargylamine mycophenolate analog preparation mol docking neuroblastoma anticancer; A(3)-coupling reaction; Cytotoxic activity; Molecular docking; Mycophenolic Acid; Neuroblastoma SH-SY5Y cells; Propargylamine mycophenolate.Reference of 4-(Piperazin-1-yl)phenol.

Twenty six propargylamine mycophenolate analogs were designed and synthesized from mycophenolic acid 1 employing a key step A3-coupling reaction. Their cytotoxic activity was examined against six cancer cell lines. Four compounds exhibited selective cytotoxicity towards neuroblastoma (SH-SY5Y) cancer cells and were less toxic to normal cells in comparison to the lead compound, MPA 1 and a standard drug, ellipticine. Mol. docking results suggested that compound I is fit well in the key amino acid of three proteins (CDK9, EGFR, and VEGFR-2) as targets in cancer therapy. The propargylamine mycophenolate scaffold might be a valuable starting point for development of new neuroblastoma anticancer drugs.

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Ether – Wikipedia,
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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole( cas:73590-85-9 ) is researched.Category: ethers-buliding-blocks.Oelschlager, H.; Seeling, A.; Seeling, B.; Westesen, K.; Bunjes, H. published the article 《Selective oxidation of 5-methoxy-2-[(3,5-dimethyl-4-methoxy-2-pyridyl)methylthio]-1-H-benzimidazole to (RS-5-methoxy-2-[[(3,5-dimethyl-4-methoxy-2-pyridyl)methyl]sulfinyl]-1-H-benzimidazole (omeprazole)》 about this compound( cas:73590-85-9 ) in Pharmazie. Keywords: omeprazole preparation decomposition kinetics; pyridylmethylthiobenzimidazole selective oxidation. Let’s learn more about this compound (cas:73590-85-9).

5-Methoxy-2-[(3,5-dimethyl-4-methoxy-2-pyridyl)methylthio]-1-H-benzimidazole was oxidized with Oxone in diluted EtOH at -5° furnishing omeprazole with an excellent yield. Addnl., decomposition kinetics of omeprazole in aqueous EtOH are presented.

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Ether – Wikipedia,
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Application of 56621-48-8. 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: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about Discovery of a new potent inhibitor of mushroom tyrosinase (Agaricus bisporus) containing 4-(4-hydroxyphenyl)piperazin-1-yl moiety.

Tyrosinase (TYR, EC 1.14.18.1) plays a pivotal role in mammalian melanogenesis and enzymic browning of plant-derived food. Therefore, tyrosinase inhibitors (TYRIs) can be of interest in cosmetics and pharmaceutical industries as depigmentation compounds as well as anti-browning agents. Starting from 4-benzylpiperidine derivatives that showed good inhibitory properties toward tyrosinase from Agaricus bisporus (TyM), we synthesized a new series of TYRIs named 3-(4-benzyl-1-piperidyl)-1-(4-phenylpiperazin-1-yl)propan-1-one and 2-(4-benzyl-1-piperidyl)-1-(4-phenylpiperazin-1-yl)ethanone derivatives Among them, compound 4b proved to be the most potent inhibitor (IC50 = 3.80μM) and it also showed a good antioxidant activity. These new data furnished addnl. information about the SAR for this class of TYRIs.

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Ether – Wikipedia,
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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.Trivedi, Harshal K.; Patel, Mukesh C. researched the compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole( cas:73590-85-9 ).Application In Synthesis of 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole.They published the article 《Development and validation of a precise single HPLC method for determination of omeprazole and its related compound in pharmaceutical formulation》 about this compound( cas:73590-85-9 ) in International Journal of ChemTech Research. Keywords: omeprazole determination impurity reversed phase HPLC. We’ll tell you more about this compound (cas:73590-85-9).

A simple reversed-phase high performance liquid chromatog. was developed and employed for the determination of omeprazole and its related substances in bulk material and com. dosage forms. A gradient elution of filtered sample was performed on Zorbax XDB C8 (150 × 4.6), 5μ column with Glacine buffer (pH-8.8) as a mobile phase-A, Acetonitrile : Methanol (83:17) as a mobile phase-B and UV detection at 302 nm. Mobile phase was delivered at flow of 1.2 mL/min and at maintaining the column temperature at 25°C, quantification was achieved with reference to the external standards The active ingredient – omeprazole was successfully separated from its all related substances, including process impurities and other possible impurities of oxidation and decomposition The excipients did not interfere with the determination of omeprazole and its related compound in com. dosage formulations. The method was rapid, simple, accurate and reproducible. It was not only successfully employed for the assay of omeprazole in bulk material and pharmaceutical dosage forms but also for the determination of its related substances. A statistical design of experiments was used for the robustness evaluation of HPLC anal. method. All results were acceptable and confirmed that the method is suitable for its intended use.

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Ether – Wikipedia,
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Reference of 4-(Piperazin-1-yl)phenol. 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: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about Synthesis and characterization of phosphorus-containing dendrimers bearing rhodamine derivatives as terminal groups. Author is Wei, Yiqian; Laurent, Regis; Majoral, Jean-Pierre; Caminade, Anne-Marie.

The synthesis of two new derivatives of Rhodamine B functionalized by phenols is reported. For one rhodamine derivative, the equilibrium between the open form and the ring-closed (spirolactam) form is completely shifted toward the latter, whereas the constitution of the other rhodamine derivative precludes ring closure. The spirolactam derivative was grafted as terminal group to a first generation phosphorus-containing dendrimer. Attempts to open the spirolactam form by adding HCl failed and resulted only in protonation of the NEt2 substituent of rhodamine.

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Franc, Gregory; Turrin, Cedric-Olivier; Cavero, Emma; Costes, Jean-Pierre; Duhayon, Carine; Caminade, Anne-Marie; Majoral, Jean-Pierre published the article 《gem-Bisphosphonate-Ended Group Dendrimers: Design and Gadolinium Complexing Properties》. Keywords: gem bisphosphonate terminated dendrimer gadolinium complex magnetic property; piperazino gem bisphosphonate functionalized gadolinium complex crystal structure.They researched the compound: 4-(Piperazin-1-yl)phenol( cas:56621-48-8 ).Category: ethers-buliding-blocks. 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:56621-48-8) here.

The synthesis of the first gem-bisphosphonate-ended group dendrimers is described using nucleophilic substitution of terminal P(S)Cl2 units of phosphorus dendrimers of generation 1 to 3 with protected aminophenols followed by deprotection of amino groups and Michael addition with vinylidene tetraisopropyl bisphosphonate. These dendrimers were found to act as chelating agents towards Gd ions. Contrary to the phosphonic acids that can introduce bridges between Gd ions, these synthons act as unique chelating agents toward the Gd ions. Furthermore, it appears that the number of Gd ions introduced in the isolated units is equal to the number of gem-bisphosphonate pairs. Eventually, the magnetic measurements demonstrate clearly that the Gd ions are not coordinated to these pairs as isolated ions but that at least some of these ions are bridged through oxygen atoms that are not P=O functions, as shown by the structural determination given in the paper. Studies concerning properties of these Gd dendrimers complexes are under active study. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009).

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Ether – Wikipedia,
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Recommanded Product: 4-(Piperazin-1-yl)phenol. 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: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about Targeting DNA Repair in Tumor Cells via Inhibition of ERCC1-XPF. Author is Elmenoufy, Ahmed H.; Gentile, Francesco; Jay, David; Karimi-Busheri, Feridoun; Yang, Xiaoyan; Soueidan, Olivier M.; Weilbeer, Claudia; Mani, Rajam S.; Barakat, Khaled H.; Tuszynski, Jack A.; Weinfeld, Michael; West, Frederick G..

The ERCC1-XPF heterodimer is a 5′-3′ structure-specific endonuclease, which plays an essential role in several DNA repair pathways in mammalian cells. ERCC1-XPF is primarily involved in the repair of chem. induced helix-distorting and bulky DNA lesions, such as cyclobutane pyrimidine dimers (CPDs), and DNA interstrand cross-links. Inhibition of ERCC1-XPF has been shown to potentiate cytotoxicity of platinum-based drugs and cyclophosphamide in cancer cells. In this study, the previously described ERCC1-XPF inhibitor 4-((6-chloro-2-methoxyacridin-9-yl)amino)-2-((4-methylpiperazin-1-yl)methyl)phenol (compound 1) was used as a reference compound Following the outcome of docking-based virtual screening (VS), we synthesized seven novel derivatives of 1 that were identified in silico as being likely to have high binding affinity for the ERCC1-XPF heterodimerization interface by interacting with the XPF double helix-hairpin-helix (HhH2) domain. Two of the new compounds, 4-((6-chloro-2-methoxyacridin-9-yl)amino)-2-((4-cyclohexylpiperazin-1-yl)methyl)phenol (compound 3) and 4-((6-chloro-2-methoxyacridin-9-yl)amino)-2-((4-(2-(dimethylamino)ethyl) piperazin-1-yl) methyl) phenol (compound 4), were shown to be potent inhibitors of ERCC1-XPF activity in vitro. Compound 4 showed significant inhibition of the removal of CPDs in UV-irradiated cells and the capacity to sensitize colorectal cancer cells to UV radiation and cyclophosphamide.

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Ether – Wikipedia,
Ether | (C2H5)2O – 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: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about New N,S-substituted dienes from mono(thio)substituted-2-nitrohalo-1,3-diene and some amines.COA of Formula: C10H14N2O.

1-(4-Methoxyphenylthio)-2-nitro-1,3,4,4-tetrachloro-1,3-butadiene, (I) reacted with piperazine derivatives and yielded N,S-substituted chloronitrodienes in methylene chloride. Compound I gave dioxaspiro-piperidinyl-substituted chloronitrodiene by the reaction with 1,4-dioxa-8-azaspiro-4,5-decane. 4-Substituted piperidinyl chloronitrodiene derivatives were obtained by the reactions of piperidines with I. 1-(4-Methoxyphenylthio)-2-nitro-1-(4-(p-nitrophenyl)piperazin-1-yl)-1,3,4,4-tetrachloro-1,3-butadiene also was structurally characterized using single-crystal X-ray diffraction anal. [triclinic, P-1, a 7.8400(2), b 9.7030(3), c 16.9628(4) Å, α 93.898(3), β 93.879(2), γ 96.9296(13)°, V 1260.67(6) Å3, Z 2].

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Ether – Wikipedia,
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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.Jiang, Bo; Fan, Wei; Sun, Mu-Yan; Ye, Qin; Wang, Shu-Liang; Tu, Shu-Jiang; Li, Guigen researched the compound: 1-Methyl-3-(thiophen-2-yl)-1H-pyrazol-5-amine( cas:118430-78-7 ).Electric Literature of C8H9N3S.They published the article 《Domino Reaction of Arylglyoxals with Pyrazol-5-amines: Selective Access to Pyrazolo-Fused 1,7-Naphthyridines, 1,3-Diazocanes, and Pyrroles》 about this compound( cas:118430-78-7 ) in Journal of Organic Chemistry. Keywords: domino heterocyclization arylglyoxal pyrazolamine pyrazolo naphthyridine diazocane pyrrole. We’ll tell you more about this compound (cas:118430-78-7).

New multicomponent domino reactions of arylglyoxals with pyrazol-5-amines have been established, providing selective access to unprecedented pyrazolo-fused 1,7-naphthyridines, 1,3-diazocanes, and pyrroles (up to 52 examples). The unreported dipyrazolo-fused 1,7-naphthyridines were regioselectively synthesized through a special double [3 + 2 + 1] heteroannulation accompanied by direct C-C formation between two electrophilic sites of arylglyoxals [e.g., PhCOCH(OH)2 + 1,3-dimethyl-5-pyrazolamine in presence of TsOH → I (70%)]. The unusual [3 + 3 + 1 + 1] cyclization resulted in 20 examples of novel dipyrazolo-fused 1,3-diazocanes [e.g., PhCOCH(OH)2 + 1-methyl-3-phenyl-5-pyrazolamine in presence of TsOH → II (71%)], whereas pyrrolo[2,3-c]pyrazoles were obtained in good yields by varying arylglyoxals and pyrazol-5-amines in the ratio 1:2 [e.g., PhCOCH(OH)2 + 1-phenyl-3-methyl-5-pyrazolamine in presence of TsOH → III (78%)]. Mechanisms of formation of these three new types of heterocycles are also proposed.

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Ether – Wikipedia,
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