Monosacáridos

1,2:3,4-Di-O-isopropylidene-a-D-galactopyranose, also known as diacetone-D-galactose and galactose diacetonide, is a partially protected monosaccharide building block with isopropylidene groups on the 1,2 and 3,4 hydroxyls. The 6-hydroxyl is unprotected and able to undergo a variety of chemical transformations, such as glycosylation acting as a glycosyl acceptor to form 1,6-linked disaccharides.

Glycol ethers are compounds that are used as solvents and plasticizers. They have been shown to inhibit the activity of enzymes, such as glucose-6-phosphate dehydrogenase, which is involved in the conversion of glucose to phosphate. Glycol ethers also promote sugar transport by inhibiting the sodium-dependent glucose transporter (SGLT). This transport mechanism is important for maintaining normal blood sugar levels and preventing diabetic neuropathy. Glycol ethers are also anti-diabetic agents that can increase insulin sensitivity by stimulating insulin release from pancreatic beta cells and improving the response of peripheral tissues to insulin stimulation.

Allyl 2,3,4-tri-O-acetyl-b-D-galacturonide methyl ester is a synthetic monosaccharide that is custom synthesized for use in modifying complex carbohydrates. It has the CAS number 130506-36-4 and can be used in the synthesis of oligosaccharides and polysaccharides. This chemical may be fluorinated to give a fluorinated carbohydrate, which may then be methylated to produce an allyl 2,3,4-tri-O-acetyl-b-D-galacturonide methyl ester. Allyl 2,3,4-tri-O-acetyl--b--D--galacturonide methyl ester is also known as Methylated galacturonic acid or 2,3,4 Triacetate D Galacturonic Acid Methyl Ester.

N-[2-(4'-Methoxyphenylacetonitrile)]-2,3,4,6-tetra-O-pivaloyl-D-glucopyranoside is a custom synthesis of a carbohydrate. It is a synthetic saccharide that is modified by fluorination and methylation. This compound has high purity and can be custom synthesized to order.

D-Galactose is a monosaccharide that is found in the cells of plants and animals. It can be synthesized from D-glucose by adding a D-galactose molecule to the alpha carbon of an existing glucose molecule. The resulting bond is called a glycosidic linkage. This process is called glycosylation. Glycosylation occurs when a sugar molecule reacts with another molecule, such as an amino acid, lipid, or nucleotide, to form what is known as a glycoside linkage. In this case, the sugar is D-galactose and the other molecules are either amino acids or lipids. The reaction between D-galactose and other molecules often results in polysaccharides and complex carbohydrates such as cellulose, chitin, and glycogen.
Methylation of D-galactose can produce methyl galactoside (CAS No. 1881-42-7), which

1,3,5-Tri-O-benzoyl-a-L-ribofuranose is a synthetic sugar with a complex carbohydrate structure. It is synthesized by the sequential addition of benzoyl groups to the alditol acetal of ribose. The molecular weight of this compound is 598.6 g/mol and its CAS number is 171866-30-1. 1,3,5-Tri-O-benzoyl-a-L-ribofuranose has been shown to be an excellent substrate for glycosylation and methylation reactions due to the presence of three reactive hydroxyl groups that can react with nucleophiles such as amines or thiols. Methylation reactions are typically carried out in the presence of sodium methoxide in methanol at room temperature for several hours. Glycosylation reactions require the use of activated glycosyl donors such as UDP glucose, UDP galactose

3,4-O-Isopropylidene-L-arabinose (3,4-OIRA) is an isopropylidene derivative of L-arabinose. 3,4-OIRA has been shown to be a substrate for glycosylation reactions with various other sugars. It can also undergo methylation reactions and has been modified by fluorination. 3,4-OIRA is a food additive that belongs to the category of complex carbohydrates.

2,4-Dideoxy-2,4-difluoro-D-glucose is a fluorinated glucose analog that has been synthesized to be used as an imaging agent for positron emission tomography (PET) and single photon emission computed tomography (SPECT). It is labeled with fluorine-18 and can be metabolically incorporated into the cellular glycolytic pathway. 2,4-Dideoxy-2,4-difluoro-D-glucose emits positrons that are detected by PET or SPECT cameras. The incorporation of 2,4-dideoxy-2,4-difluoro--D--glucose into the glycolytic pathway allows it to be used as a marker for positron emission tomography.

Building block for oligosaccharide synthesis

Inhibitor of Man/Glc-dependent lectin binding; used for synthesis of glucoses

D-Glucoheptonic acid-1,4-lactone is a chiral compound that can be used as an enantiomer of the natural sugar glucose. The human liver has been shown to metabolize this compound into proton and an analog of glucofuranose. This means that D-Glucoheptonic acid-1,4-lactone is able to be broken down by glycosidases. D-Glucoheptonic acid-1,4-lactone also inhibits α-L-rhamnosidase and other enzymes responsible for the breakdown of carbohydrates. This inhibition may lead to increased blood glucose levels in humans. D-Glucoheptonic acid-1,4-lactone has been shown to have inhibitory activities against both bacterial and mammalian enzymes. Hydrogen fluoride (HF) was used as a catalyst in the synthesis of this compound with benzylidene acetal

3-(N-(3R, 4R) -3, 4-Dihydroxy- L- prolinyl)-propanoic acid is a synthetic compound. It is a sugar that can be modified with fluorination and methylation to produce 3-(N-(3R,4S)-3,4-dihydroxy-L-prolinyl)-propanoic acid. This product can be used for glycosylation of oligosaccharides or sugars. It has high purity and is available in bulk quantities.

Phenyl-beta-D-glucopyranoside is a phenolic compound that can be found in plant cell walls. It is a monosaccharide with an ester linkage, which is hydrolyzed by esterases to yield protocatechuic acid. Phenyl-beta-D-glucopyranoside is an inhibitor of sugar transport and has been shown to have protective effects on the liver when it is exposed to toxic substances. This sugar also binds to proteins, which may alter the function of these proteins. Phenyl-beta-D-glucopyranoside has been shown to inhibit glycolysis in hepatic tissues and tannins are released from erythrocytes treated with this substance. Phenyl-beta-D-glucopyranoside has been shown to be chemically stable under acidic conditions.

2,6-Dideoxy-D-arabino-hexose is a hydrogenolysis product of 2,6-dideoxy-D-ribo-hexose. It has been shown to have a solvolytic activity and can be used for the dehalogenation of several halogenated compounds. 2,6-Dideoxy-D-arabino-hexose is also stereoselective and can be used as an estimator in population genetics. This sugar is also regulatory, catalytic, and crystalline. It is found in many carbohydrates, including weighting disaccharides such as sucrose.

6-Deoxy-L-piscose is a synthetic monosaccharide that has been fluorinated to 6-fluoro-D-piscose. It is a complex carbohydrate that has been synthesized from D-glucose and D-ribose. The glycosylation reaction was conducted with N,N'-diacetylchitobioglycine and the methylation reaction with sodium methoxide. Click modification was performed by reacting 6-deoxy L-piscose with 2-(2′,4′,5′,7′,8′)-octamethyltrigonal bipyramid (OMeTBP) in dry DMF at 120°C for 10 minutes. The chemical structure of this sugar is shown below:

D-Talono-1,4-lactone is a stereoselective drug that inhibits the synthesis of c-glycosides and is used to study the mechanisms of action of these compounds. It has been shown to have antibacterial activity against gram-negative pathogens such as Escherichia coli, Salmonella typhi, Klebsiella pneumoniae, and Acinetobacter baumannii. D-Talono-1,4-lactone also has inhibitory activities against gram negative bacteria. This compound may be a potential biomarker for the detection of gram negative bacteria in water samples. The mechanism of action of this drug is not known but it is likely due to its ability to inhibit bacterial growth.