Hétérocycles oxygénés (O)

<p>2,2,5,5-Tetramethyldihydrofuran-3(2H)-one is an organic compound that is classified as a heterocyclic compound. This substance has been shown to be a good mercurial reagent and can be used for the synthesis of polycyclic compounds. 2,2,5,5-Tetramethyldihydrofuran-3(2H)-one has been shown to form a dimer with sulfuric acid in the presence of polyphosphoric acid. It also reacts with ethers to form sulfates and furans.</p>

<p>2,5-Bishydroxymethyl tetrahydrofuran is an organic compound that is synthesized from 2,5-dihydroxyacetophenone and hydrochloric acid. It has significant cytotoxicity against cells and inhibits the growth of cancer cells in culture. This compound can be used as a monoclonal antibody to help identify certain types of cells. 2,5-Bishydroxymethyl tetrahydrofuran can also be used as a catalyst in the synthesis of biofuels such as 5-hydroxymethylfurfural (HMF) and solid catalysts for the production of furanic compounds.</p>

<p>1-Methyl-2-nitro-3-(tetrahydrofuran-3-yl)methyl)guanidine (1MNTG) is a pesticide that is used to control pests. It has been shown to be highly resistant to degradation by cytochrome P450, which may cause chronic exposure and/or analytical problems. 1MNTG has also been shown to cause genetic damage in bacteria, as well as enzyme activities in the liver and kidneys of rats exposed for short periods of time. 1MNTG has been shown to be an agonist of toll-like receptor 4, which can lead to health effects such as inflammation and have been shown to affect biochemical processes in vitro.</p>

<p>Nilotinib is a small molecule that inhibits the tyrosine kinase activity of TK1, TK2, and TK3. It binds to the ATP-binding site of these kinases and prevents the phosphorylation of the cellular substrate. Nilotinib has been shown to inhibit the proliferation of leukemia cells in vitro, as well as to have antiproliferative effects in vivo. Nilotinib can be used for the treatment of chronic myelogenous leukemia (CML) and Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL). In addition, it has been shown to have synergistic effects with other drugs such as α1-acid glycoprotein inhibitors or methyltransferase inhibitors. Nilotinib can also be used for cases of hepatic steatosis.</p>

<p>4-Methyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione is a racemic benzofuran analogue</p>

<p>[(5,5-Dimethyltetrahydrofuran-3-yl)methyl]amine is a synthetic compound that regulates the expression of regulatory genes. It has been shown to be a potent inhibitor of neurospora sensitivity. The structure of [(5,5-dimethyltetrahydrofuran-3-yl)methyl]amine is similar to the structure of the acid analogues of this compound. [(5,5-Dimethyltetrahydrofuran-3-yl)methyl]amine also binds to and derepresses structural genes by inhibiting transcription and pathways for protein synthesis. This mechanism may be related to its inhibitory effects on neurospora sensitivity.</p>

<p>4-Methyl-2(5H)-furanone is an isomeric compound that can be isolated from various plant sources including isoprene, chalcones, and other plant extracts. It has been shown to inhibit the formation of dental plaque and the growth of oral bacteria in a functional group study. 4-Methyl-2(5H)-furanone is also known as a chalcone and has been shown to have antibacterial properties. This chemical reaction can be used as an alternative to chlorhexidine for the treatment of dental plaque.</p>

<p>cis-3,4-Dihydroxy-2,5-dimethoxytetrahydrofuran is a tetrahydrofuran derivative that has been shown to have neuroprotective effects. It has been shown to inhibit the formation of crosslinks in rat spinal cord neurons and to inhibit the release of reactive oxygen species (ROS) and nitric oxide (NO), which are known to be neurotoxic. In addition, cis-3,4-dihydroxy-2,5-dimethoxytetrahydrofuran has antibacterial activity against Staphylococcus aureus and Dasycarpus sp. This compound is also a precursor for limonoids and glyceraldehyde.</p>

<p>2(5H)-Furanone is a naturally occurring compound that has been found to have hypoglycemic effects. Studies have shown that 2(5H)-furanone inhibits the activity of cox-2, an enzyme involved in the synthesis of prostaglandins, which are inflammatory compounds. This chemical may be useful as an anti-inflammatory agent and for the treatment of bowel diseases. 2(5H)-Furanone also has antimicrobial properties and has been shown to inhibit the growth of animal cells that are resistant to anticancer drugs. It binds to cell nuclei and disrupts DNA synthesis by competing with basic proteins for binding sites on DNA strands. The chemical structure of 2(5H)-furanone is very similar to butenolide, a natural plant compound used in traditional Chinese medicine; both compounds have been shown to inhibit COX-2 activity.</p>

<p>6-Hydroxy-N,2-dimethylbenzofuran-3-carboxamide is a fine chemical which is used as a building block in the synthesis of complex compounds. It can be used as a reactant in various reactions, such as Friedel-Crafts reactions and cycloadditions. This compound has been shown to be a useful intermediate for the synthesis of various heterocyclic compounds and scaffolds for drug development. 6-Hydroxy-N,2-dimethylbenzofuran-3-carboxamide has CAS number 638217-08-0 and is readily available in high quality.</p>

<p>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.</p>

<p>3,6-Dimethyl-4,5,6,7-tetrahydro-1-benzofuran is a monoterpene that has been shown to have antimicrobial activity against a wide range of microorganisms. It is a reactive compound and reacts with the thiol groups of proteins and other thiols in the cell. This reaction inhibits transcriptional regulation and protein synthesis by binding to the target enzymes. 3,6-Dimethyl-4,5,6,7-tetrahydro-1-benzofuran has been shown to inhibit photosynthetic activity in plants as well as the growth of fungi in vitro.</p>

<p>N-[(3S)-2,5-Dioxotetrahydro-3-furanyl]-2,2,2-trifluoroacetamide is a boronic acid that has been used to synthesize polymers. This compound is of interest for the synthesis of hydrophobic amino acids such as threonine and lysine. The high yield and functionalisation of this molecule make it deserving of further investigation.</p>

<p>The drug 4-Amino-5-chloro-2,3-dihydro-N-[1-(3-methoxypropyl)-4-piperidinyl]-7-benzofurancarboxamide (BZP) is a histamine H2 receptor antagonist. It binds to the histamine H2 receptor in the stomach and duodenum, thereby blocking stomach acid production. BZP has been shown to be effective for treating symptoms of constipation or diarrhoea caused by inflammatory bowel disease or abdominal surgery. BZP also reduces the risk of relapse after surgery but does not affect long term efficacy. This drug is not available in the United States and has significant interactions with other drugs and symptoms including constipation, bowel disease, long term efficacy, and analytical method.</p>

<p>Carbofuran is a broad-spectrum insecticide that belongs to the class of carbamates. It is used to control insects that damage crops and other plants. The mechanism of action for carbofuran involves inhibition of the sorbitol dehydrogenase enzyme, which blocks the conversion of glucose to sorbitol in insects, leading to their death. Carbofuran also has synergistic effects with nitrite ions. Carbofuran's chemical name is 3-methyl-2-(methylthio)propanal O-carbamate. It has been shown that carbofuron causes oxidative injury in mitochondria by inhibiting mitochondrial functions and energy metabolism, leading to its acute toxicities at high doses.</p>

<p>5-Chloro-1-benzofuran-3(2H)-one (5CBF) is a versatile building block that can be used to make a wide range of different compounds. It has been shown as an effective reagent in the synthesis of complex compounds and research chemicals. 5CBF is also used as a high quality intermediate in organic synthesis, as well as being a useful scaffold for chemical reactions.</p>

<p>3H-Spiro[Isobenzofuran-1,4'-piperidine] hydrochloride is a high quality reagent that is used as a complex compound for the synthesis of various fine chemicals. It has been shown to be an excellent building block for drug discovery and development. 3H-Spiro[Isobenzofuran-1,4'-piperidine] hydrochloride is available in bulk quantities and can be shipped worldwide. This chemical is also used as a reaction component in the synthesis of various speciality chemicals. 3H-Spiro[Isobenzofuran-1,4'-piperidine] hydrochloride is versatile and can be used in reactions with different functional groups.</p>

<p>Diethyl 3,4-furandicarboxylate is a chemical compound that is used as an antiproliferative drug in cancer therapy. It is synthesized by the thermal isomerization of diethyl acetylenedicarboxylate. The product has been shown to inhibit the growth of human cancer cells and has antibacterial activity against Gram-positive bacteria. Diethyl 3,4-furandicarboxylate also inhibits the synthesis of DNA and RNA by binding to the enzyme ribonucleotide reductase. Its cytostatic effects are due to its ability to inhibit cellular proliferation by inhibiting protein synthesis.</p>

<p>(2R)-1-(Phenylmethyl)-N-[3-(spiro[isobenzofuran-1(3H),4'-piperidin]-1-yl)propyl-2-pyrrolidinecarboxamide HCl is an endogenous opioid that has been shown to have antidepressant-like effects. It can bind to γ-aminobutyric acid (GABA) receptors, catecholamine receptors, and nociceptin receptors. This drug also has anti-cancer properties and may be used for the treatment of autoimmune diseases. The interaction of this drug with other drugs is not well understood, but it has been shown to modulate the effects of opioids and increase the aversive nature of some substances.</p>

<p>N-[(8-Fluoro-2,3-Dihydro-1-Methyl-5-Phenyl-1H-1,4-Benzodiazepin-2-Yl)Methyl]-3-Furancarboxamide is a hydrophobic, implanting drug with an iontophoresis device. It has been shown to have therapeutic effects in cancer. The drug is a targetable molecule that can be used for diagnostic purposes and the treatment of various cancers. N-[(8-Fluoro-2,3-Dihydro-1,5 -Phenyl 1H -1,4 Benzodiazepin 2 Yl) Methyl] 3 Furancarboxamide has been shown to inhibit cell proliferation by blocking the synthesis of proteins required for DNA replication and also inhibits the activity of protein kinase C.</p>