Hétérocycles oxygénés (O)

(S)-5-Oxo-2-tetrahydrofurancarboxylic acid is a synthetic compound that has been shown to have anticancer activity. It inhibits the production of glutamate, which is an important precursor for atp synthesis in the mitochondria. (S)-5-Oxo-2-tetrahydrofurancarboxylic acid also promotes cell apoptosis by inhibiting mitochondrial pathways and causes DNA damage. This drug can be used as an alternative to existing cancer therapies such as chemotherapy, which are less effective in patients with a mutated p53 gene. The drug has been shown to cause wild type cells to undergo apoptosis, but not mutant cells.

2-(Ethoxymethyl)furan is a levulinate that is obtained by the reaction of ethyl alcohol and acetic acid. It can be used in the production of biofuels, such as 2-ethoxyethanol, which are more energy efficient than petroleum-based fuels. This chemical is an organic compound that has acidic properties and reacts with other compounds to form new compounds. The synthesis of this compound can be achieved through a chemical reaction between furfuryl alcohol and hydrochloric acid, which produces 2-(ethoxymethyl)furan and hydrogen chloride gas. Furan is also a heterocyclic organic compound with two or four fused rings and one or two oxygen atoms in the ring. Furans are low-energy chemicals that can be used for making other chemicals, such as solvents, plastics, dyes, drugs, and pesticides. Furans have been found to have synergistic effects when combined with ethers. The formation of fur

Applications N-(2-acetyl-1-benzofuran-3-yl)-2-chloroacetamide (cas# 855715-46-7) is a useful research chemical.

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2,5-Dihydro-2,5-dimethoxyfuran is a chemical compound that is used as a solvent. It has been shown to have an environmental hazard due to its toxicity and ability to form acidic compounds in the environment. 2,5-Dihydro-2,5-dimethoxyfuran is used in clinical diagnostics and has been found to be a useful reagent for the identification of methyl glycosides. This chemical compound also has been shown to have gelation and chloride properties.

5-Bromo-2-ethylbenzofuran is a potent antiproliferative agent. It binds to tubulin and inhibits the polymerization of microtubules, which prevents mitotic spindle formation. 5-Bromo-2-ethylbenzofuran also blocks the formation of new cytoskeleton by binding to the skeleton and preventing actin polymerization. This drug has been shown to induce apoptosis in cells through a variety of mechanisms including inhibition of methoxy groups, microscopy, and cytometry. 5-Bromo-2-ethylbenzofuran is an antitumor agent that inhibits cell proliferation in vitro and in vivo.

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Nomega-(2,2,4,6,7-Pentamethyldihydrobenzofuran-5-sulfonyl)-L-arginine methyl ester hydrochloride is a versatile building block for the preparation of complex compounds. It is a reagent for research chemicals and speciality chemicals. Nomega-(2,2,4,6,7-Pentamethyldihydrobenzofuran-5-sulfonyl)-L-arginine methyl ester hydrochloride can be used as a high quality and useful intermediate in organic synthesis or as a reaction component in various chemical reactions. This compound has been shown to be useful as a scaffold in the design of new drugs.

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Applications 3-{4-[(furan-2-ylmethyl)sulfamoyl]phenyl}prop-2-enoic acid (cas# 391229-93-9) is a useful research chemical.

Benzofuran-5-carboxylic acid is a benzofuran derivative that inhibits the production of protein targets in cells. This leads to autoimmune diseases and anticancer activity. Benzofuran-5-carboxylic acid has been shown to be a potent inhibitor of the RNA polymerase II, which is responsible for the production of messenger RNA (mRNA). This compound also inhibits the viral non-structural protein, NS1, which is involved in the replication of influenza A virus. It has been shown to inhibit the biosynthesis of chalcones, an important group of compounds found in plants with a variety of biological activities.

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Perhydrocyclobuta[c]furan-1,3-dione is a synthetic compound that has been shown to be an effective catalyst for the asymmetric synthesis of alcohols. It is enantiopure and can be used in the stereoselective synthesis of cyclic compounds, such as cyclobutane or cyclic ketones. Perhydrocyclobuta[c]furan-1,3-dione can also activate photosensitized reactions, which are useful in the production of pharmaceuticals and other biologically active compounds. This compound has been validated by testing its ability to catalyze reactions on biomolecules, such as DNA or RNA sequences.

1-Benzofuran-3-carbaldehyde is a chemical compound that has been shown to have anti-cancer properties. It inhibits the growth of cells by interfering with fatty acid metabolism, and it also disrupts the balance of fatty acids in cell membranes, which leads to insulin sensitivity. The drug can be used as an alternative to streptochlorin for the treatment of cancer. 1-Benzofuran-3-carbaldehyde has been shown to inhibit the production of amines in bioassays, suggesting its potential use as a therapeutic agent for Parkinson's disease or Alzheimer's disease. 1-Benzofuran-3-carbaldehyde is metabolized by detoxification enzymes in cells, such as methylene oxidase and glutathione S transferases, which are known to be important for cancer prevention. This molecule is enantiopure and can exist in two different forms: R and S. The R form is more active than the S form.

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Applications Ethyl 5-amino-1-benzofuran-2-carboxylate is used as an synthetic intermediate in the preparation of indolebutylpiperazines, a class of dual 5-HT1A receptor agonists and serotonin reuptake inhibitors. Ethyl 5-amino-1-benzofuran-2-carboxylate was also used as a potential radiolabelled analog for melanoma imaging and targeted radiotherapy. References Chezal, J.M., et al.: J. Medn. Chem., 51, 3133 (2008); Heinrich, T., et al.: J. Medn. Chem., 47, 4684 (2004);

Nomega-(2,2,4,6,7-Pentamethyl-dihydrobenzofuran-5-sulfonyl)-L-arginine is a synthetic peptide that has been used as a solid phase synthesis building block. It has been shown to be stable in the liquid phase and to undergo cyclic macrocyclization with piperidine. This compound has been used to synthesize sequences of molecules with up to five amino acid residues. The yields obtained for this reaction are high and the macrocyclization provides a means of introducing side chains onto the molecule.

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1-(1,3-Dihydro-3-oxo-1-isobenzofuranyl)-5-fluoro-2,4(1H,3H)-pyrimidinedione is a fluoropyrimidine prodrug that is metabolized to 5-fluorouracil in the body. 1-(1,3-Dihydro-3-oxo-1-isobenzofuranyl)-5-fluoro-2,4(1H,3H)-pyrimidinedione has been shown to be effective against cancer cells in vitro and in vivo. This drug binds to DNA at the O6 position of guanine and inhibits DNA synthesis. Clinical studies have shown that 1-(1,3-Dihydro-3-oxo-1-isobenzofuranyl)-5-fluoro--2,4(1H,3H)-pyrimidinedione is well

3,5-Dibromo-1-benzofuran is a heterocyclic compound with a bromine atom at the 3 and 5 positions. It is used as an intermediate in the synthesis of other compounds. It is also used as a reactant in organic chemistry to form polyhalogenated compounds with halides. 3,5-Dibromo-1-benzofuran has been shown to be reactive under time dependent conditions and can be oxidized by palladium(II) chloride to form benzofuran derivatives.

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2-(Trimethylsilyloxy)furan is an organic compound that is used as a reactant for the synthesis of other organic compounds. It has been used as a homogeneous catalyst for the synthesis of β-unsaturated ketones and as a synthon in the reaction with ethyl diazoacetate to produce an acetal. 2-(Trimethylsilyloxy)furan can be used in a suzuki coupling reaction which produces phosphonates, imines, and stereoselective products. The nucleophilic nature of this substrate makes it useful for reactions with ammonium nitrate, producing nucleophilic substitution products with high yield. 2-(Trimethylsilyloxy)furan has also been shown to have a high reaction rate in nmr spectra.

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Applications 2,3,5-Trimethylfuran (cas# 10504-04-8) is a useful research chemical. Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

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3-Methylbenzofuran is a heterocyclic compound and an organic compound that belongs to the benzofurans. It is synthesized by reacting hydrogen chloride with carbon disulfide in the presence of molybdenum as catalyst. 3-Methylbenzofuran has been shown to be a potent elicitor for the production of abscisic acid, a plant hormone involved in stomatal closure, when applied in culture. 3-Methylbenzofuran is highly acidic and reacts with silver trifluoromethanesulfonate to form a precipitate. This reaction takes place at high temperatures (above 50°C).

Stability Moisture Sensitive Applications 2-Furanone is a heterocyclic organic compound that is used widely in the synthetic preparation of pharmaceutical goods. References Kim, H.K., et al.: Plant. Pathol. J., 28, 259 (2012); Nam, S., et al.: J. Agr. Food. Chem., 60, 9097 (2012); Durchschein, K., et al.: Eur. J. Org. Chem., 2012, 4963 (2012);

Topotecan is a dna topoisomerase I inhibitor. It is a prodrug that is converted to its active form, 10-hydroxy-topotecan, by esterases in the body. Topotecan binds to DNA and prevents it from unwinding during replication. This drug also has stereoselectivity for the minor groove of DNA, which makes it more potent than other drugs with similar activity. The main metabolite of topotecan, 10-hydroxy-topotecan, is an inhibitor of topoisomerase II and III. Topotecan has been shown to be more efficient in inhibiting the growth of cancer cells than podophyllotoxin.

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