Hétérocycles oxygénés (O)

Please enquire for more information about Cbz-2-amino-2-furanaceticacid including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about 2-Methyl-2,3-dihydro-1-benzofuran-5-carbaldehyde including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about 1-[(2R)-Tetrahydro-2-furanyl]ethanone including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about N-Methyl-N-(tetrahydrofuran-2-yl)piperidin-4-amine including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about 2-Bromo-N-(tetrahydrofuran-2-ylmethyl)acetamide including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about 4-Amino-6-bromo-5-cyano-7-(2-deoxy-2-fluoro-3,5-di-O-benzoyl-beta-D-arabinofuranosyl)-7H-pyrrolo[2.3-d]pyrimidine including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about 2,3-Dihydro-2,7-dimethyl-6-benzofurancarbonitrile including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about 2-Methyl-1-benzofuran-7-amine hydrochloride including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about 2-Amino-5-methyl-furan-3,4-dicarboxylic acid diethylester including the price, delivery time and more detailed product information at the technical inquiry form on this page

2-Ethyl-4-hydroxy-5-methyl-3(2H)-furanone (EHMF) is a fatty acid that is extracted from acetate. EHMF has been shown to have antimicrobial activity against Gram-positive and Gram-negative bacteria, as well as yeast and various fungi. In addition, it has been shown to be an inhibitor of HIV infection. EHMF inhibits the production of reactive oxygen species by polymorphonuclear leucocytes and can inhibit tumor growth in cancer gene therapy. This compound also has physiological activities such as the ability to enhance matrix effects and stimulate sodium ion uptake in cells, which may be due to its function as an energy metabolism intermediate or its action on physiological processes such as protein synthesis, cell division, or hormone secretion.

4,5,6,7-Tetrahydroisobenzofuran-1,3-dione is a fatty acid that can be found in the multi-walled carbon nanotubes. The surface methodology for this compound is homotropic cooperativity. The methyl ethyl (MES) buffer has been used to study the effect of pH on 4,5,6,7-tetrahydroisobenzofuran-1,3-dione. It has been found that at an acidic pH the molecule will have a carbonyl group and a glutamate residue. This molecule has been shown to inhibit cancer cells and glutamate dehydrogenase enzyme activity. Control experiments have also been conducted using 4,5,6,7-tetrahydroisobenzofuran-1,3-dione as a treatment for cancer cells.

Please enquire for more information about (5,5-Dimethyltetrahydrofuran-3-yl)amine including the price, delivery time and more detailed product information at the technical inquiry form on this page

Applications N-​(3-​Dibenzofuranyl)-​5-​nitro-2-​furancarboxamide is synthesized from Dibenzo[b,d]furan-3-amine (D418205), which is a building block used as a reactant in the preparation of dibenzofuryl(phosphonomethyl)alanines as endothelin converting enzyme inhibitors. References De Lombaert, S., et al.: J. Med. Chem., 43, 488 (2000);

Please enquire for more information about Ethyl 3-furan-2-yl-3-oxo-propionate including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about (3R,6aS,11aS)-3,4a,7a-Trihydroxy-10a-methyl-9-(5-oxo-2,5-dihydrofuran-3-yl)hexadecahydro-11bH-cyclopenta[b]phenanthrene-11b-carbalde hyde including the price, delivery time and more detailed product information at the technical inquiry form on this page

4-Aminoisobenzofuran-1(3H)-one is a structural analog of theophylline, which inhibits the phosphodiesterase enzyme that is involved in the degradation of cyclic AMP. It has been shown to have a high degree of biological activity in isolated rat thoracic preparations and in vitro tests on rat lung tissue.

Impurity Darifenacin 5 Carboxymethyl Impurity/ Darifenacin Bromo Impurity Applications 5-(2-Bromoethyl)-2,3-dihydrobenzofuran (cas# 127264-14-6) is a compound useful in organic synthesis.

Applications 4,5-Dimethyl-3-hydroxy-2(5H)-furanone is a fragrant compound that is a key indicator of maple syrup urine disease, a disorder affecting newborn children that is the result of its inability to properly metabolize Valine (V094205), Leucine (L330110) and Isoleucine (I820175). 4,5-Dimethyl-3-hydroxy-2(5H)-furanone is naturally found in fenugreek seeds, and is an odourant present in sherry wines. Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References Blank, I., et al.: Prog. Flav. Prec. Stud., No vol. given, 103 (1993); Guerra, P. & Yaylayan, V.: J. Agr. Food Chem., 59, 4699 (2011); Mackenzie, D. & Woolf, L.: Brit. Med. J., 1, 90 (1959); Podebrad, F., et al.: J. Inh. Metab. Dis., 22, 107 (1999)

Please enquire for more information about 2-Chloro-N-dibenzo[b,d]furan-3-ylacetamide including the price, delivery time and more detailed product information at the technical inquiry form on this page

Benzofuran-2-Carbonyl Chloride is an organic solvent that is used as a synthon and has immunomodulatory effects. It inhibits the growth of bacteria by binding to the chloride ion in the active site of the enzyme, thereby disrupting its function. Benzofuran-2-Carbonyl Chloride has been shown to be effective against Proteus mirabilis and Pseudomonas aeruginosa, but not against Escherichia coli or Staphylococcus aureus. This compound is also able to inhibit the reaction rate of fluconazole with thiosemicarbazide. In addition, this chemical can cause cancer cells to die by inhibiting protein synthesis in fibroblast cells.

2,3,3-Trichlorotetrahydrofuran is a hydrogenated, oxidized derivative of 2-hydroxy-3-chloro-1,4-dihydropyridine. It is a stereochemically pure compound with the (2R)-configuration. The two chlorine atoms and the hydroxyl group are all in the same plane. This compound can be activated by chloride ion to form an electrophilic chlorocarbonium ion that reacts with aldehydes and carboxylates to form chlorocarbonate esters. It is also used as a precursor to make other chemicals such as tetrahydrofuran and naoac. Analysis of this compound shows that it has no stereoisomers or olefinic bonds.

Applications (2S,3S,4R,5R)-2-(6-Amino-9H-purin-9-yl)-5-(((3-aminophenyl)thio)methyl)tetrahydrofuran-3,4-diol is an enantiomer of (2R,3R,4S,5S)-2-(6-Amino-9H-purin-9-yl)-5-(((3-aminophenyl)thio)methyl)tetrahydrofuran-3,4-diol (A577286), which an intermediate used in the synthesis of S-adenosylhomocysteine analogs with biological activities. References Lawrence, F., et al.: Biochem. S-Adenosylmethionine Relat. Compd., Proc. Conf., 637 (1982); Shire, D., et al.: Nucleosides & Nucleotides, 2, 21 (1983)

Ethyl 4-[(dimethylamino)methyl]-5-hydroxy-2-phenyl-1-benzofuran-3-carboxylate hydrochloride is an effective drug that has been shown to have hepatoprotective and anticoagulant effects. It is used in the treatment of heart disease, including infarction, and is administered orally. The chemical structure of ethyl 4-[(dimethylamino)methyl]-5-hydroxy-2-phenyl-1-benzofuran-3-carboxylate hydrochloride is a cholinergic compound with a molecular weight of 380.14 g/mol. This drug substance belongs to the category of active chemical drugs and is insoluble in water. It also has alpha tocopherol as an excipient and phosphatidylcholine as a stabilizer.

Applications N-(furan-3-ylmethyl)cyclohexanamine (cas# 462068-58-2) is a useful research chemical.

5-Hydroxymethylfurfural (5-hmf) is a naturally occurring furan derivative that can be found in many plants such as wheat and sorghum. It is an important chemical intermediate in the production of biofuels, polymers, and pharmaceuticals. 2,5-Diformylfuran has been shown to be a promising catalyst for the oxidation of 5-hydroxymethylfurfural. The reaction mechanism is not yet fully understood. The reaction solution becomes yellow when it reacts with oxygen gas. It is possible that 2,5-diformylfuran oxidizes 5-hmf to produce formaldehyde with the help of a redox potential or catalytic activity.

Please enquire for more information about 2-Acetyl-7-methoxybenzofuran including the price, delivery time and more detailed product information at the technical inquiry form on this page

4-Bromofuran-2-carbaldehyde is a synthetic compound that has been shown to have antioxidant properties. It contains an electron-donating carbonyl group and an electron-withdrawing bromine atom. 4-Bromofuran-2-carbaldehyde is useful in the treatment of endophytic fungi infections, as it inhibits the synthesis of ergosterol, which is an important component of the fungal cell membrane. The molecule's conformational properties are also important for its biological activity, as they enable it to act as a chiral ligand by binding to proteins in a way that will inhibit their function. In addition, 4-bromofuran-2-carbaldehyde has been shown to be effective against cancer cells in vitro, particularly against MMCF7 cells. This may be due to its ability to bind to DNA and prevent transcription or replication of DNA strands.

Please enquire for more information about 3-(Chloromethyl)-2-methyl-5-(4-propoxyphenyl)furan including the price, delivery time and more detailed product information at the technical inquiry form on this page

4,5-Dibromo-1,2,6,7-tertahydro-8H-indeno[5,4-b]furan-8-one is a chemical reagent that is used for the debromination of ethyl cyanoacetate. The nucleophilic nature of the hydroxyl group in the target compound makes it an efficient substrate for this reaction. This reagent can be used to synthesize ramelteon which is a drug approved by the U.S. Food and Drug Administration (FDA) for insomnia treatment. This high yield synthesis highlights 4,5-dibromo-1,2,6,7-tertahydro-8H-indeno[5,4b]furan-8one's usefulness as a debrominating agent.

Please enquire for more information about (3aR,4S,5R,6aS)-4-(tert-Butyldiphenylsilyloxy)methyl-5-tetrahydropyranyloxy-hexahydro-2H-cyclopenta[b]furan-2-one including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about 2-[2-(5-Methylfuran-2-yl)vinyl]-4,6-bis(trichloromethyl)-1,3,5-triazine including the price, delivery time and more detailed product information at the technical inquiry form on this page

2-Chlorotetrahydrofuran is a colorless liquid with a boiling point of 33.5°C. It is soluble in carbon tetrachloride, hydrocarbons, and ethers. This compound reacts rapidly with potassium t-butoxide to form 2-chloroethyl vinyl ether (2CEVE), ethylene, and chloroform as the reaction products. The reaction can be carried out efficiently using a hydrocarbon solvent such as hexane or heptane. 2-Chlorotetrahydrofuran is an important precursor for the synthesis of pyrimidine nucleosides and other pharmaceutical compounds. It has been shown to have cytostatic activity against leukemia cells in vitro when used at high concentrations.

Stability Moisture Sensitive Applications (3R,4R)-Dihydro-3,4-bis(phenylmethoxy)-2,5-furandione is an intermediate in the synthesis of N-alkenylsuccinimide derivatives. References Ohwada, J., et al.: Bull. Chem. Soc. Jap., 63, 287 (1990);

(3R,3aS,6aR)-Hexahydrofuro[2,3-b]furan-3-ol is a polycyclic compound that has been shown to be an inhibitor of the transcriptional coactivator PPARγ. It is not active in its free form but needs to be activated by magnesium or other metal ions. It has been shown to inhibit mitochondrial membrane potential and reduce levels of PGE2. (3R,3aS,6aR)-Hexahydrofuro[2,3-b]furan-3-ol inhibits the polymerase chain reaction and dna template synthesis in vitro. This substance also induces skin cancer in rats when applied topically as a cream to sunburned skin. The mechanism of this effect is not yet known but may involve interference with cellular signaling pathways.