Oligosacáridos

2,3,6-Tri-O-acetyl-4-O-(2,3,6-tri-O-acetyl-4-O-[(2,3,4,6-tetra-O-acetyl bDgalactopyranosyl)]bDglucopyranosyl)-aDglucopyranosyldimethyl bromide is a synthetic sugar that is used as a building block for the synthesis of glycosides. This monosaccharide has been modified using click chemistry to obtain a methylated form that can be used in the synthesis of oligosaccharides and polysaccharides. It is also used to produce an acetal derivative that can be used in the synthesis of glycosidic linkages.

Trehalose is a naturally occurring disaccharide found in many organisms.Its role in nature is as versatile as its applications in the laboratory. Trehalose is synthesized by cells in response to stress and helps retaining the cellular integrity under tough conditions: An important function of Trehalose is to stabilize protein structures and to prevent proteins from their degradation. Researchers use Trehalosefor instance as a carbon source in selective microbiological media, as desiccation protectant and for cryoprotection.

Useful oligosaccharide-lipid conjugate for raising antibodies.

2'-O-Fucosyllactulose is a modified carbohydrate that has been synthesized from a natural source. It is an oligosaccharide that contains the monosaccharide, fucose. This product can be used in the synthesis of polysaccharides and glycosylation reactions. 2'-O-Fucosyllactulose has been methylated, fluorinated, and glycosylated, which makes it suitable for use as a sugar in biotechnology applications.

Cellobionic acid is produced by oxidative enzymes working on cellulose.  These compounds have found application in cosmetic antiaging formulations, moisturizers, and peels, and in treatment products to improve hyperpigmentation and acne. The bionic acids such as cellobionic acid offer the benefits of α-hydroxyacids without irritation. They also provide additional antioxidant/chelation, barrier strengthening, and moisturizing effects.

Potential prebiotic oligosaccharides made from agar by enzymatic hydrolysis

Dermatan sulphate tetrasaccharide ammonium salt is a synthetic, high purity oligosaccharide that is also known as Dermatan sulfate. Dermatan sulfate is a complex carbohydrate that is composed of a repeating sequence of three monosaccharides: glucuronic acid, N-acetylgalactosamine and N-acetylglucosamine. Dermatan sulfate has been shown to have an inhibitory effect on the growth of bacteria such as Staphylococcus aureus and Mycobacterium tuberculosis. This molecule can be modified to include fluorination or methylation for custom synthesis.

Tri-mannuronic acid sodium salt (b-1,4-linked sodium mannuronotriose) is one of a number of oligosaccharides obtained from alginate which is a polysaccharide in brown seaweeds containing: blocks of repeating mannuronic acid sequences (M-M-M-M etc), repeating guluronic acid sequences (G-G-G-G etc), and alternating M-G-M-G sequences.Oligosaccharides can be released using several methods (Lua, 2015; Yanga, 2004) and claims have been published that mannuronic acid oligosaccharides for example, can be effective in the prophylaxis and treatment of Alzheimer's disease, or for the prophylaxis and treatment of diabetes (USP 8835403B2, 2014).

Glycoside of Sialyl Lewis X

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Monosialylated glycosphingolipid with an α1,2-fucosylated galactose at the nonreducing end. The moluecule is minimally expressed in healthy tissues but has high prevalence in some tumours such as small cell lung cancer (SCLC). Fucosyl-GM1 ganglioside is a potential tumour marker for SCLC and a potential antigen target for immunotherapy.

Disialyl-TF is a monoclonal antibody that binds to the CD33 antigen on the surface of all types of cancer cells, including breast cancer cells. Disialyl-TF has been shown to reduce the growth and spread of prostate cancer cells in mice, reducing tumor size and weight. Disialyl-TF is also active against infectious diseases such as HIV, which may be due to its ability to inhibit the expression of glycan receptors. The mechanism by which it works is not yet known. Disialyl-TF has been shown to bind with high affinity to erythrocytes bearing A or B blood group antigens, making it an excellent diagnostic tool for detecting these antigens in patients with acute myeloid leukemia or other cancers.

NGA3 Glycan, 2-AB labelled is an oligosaccharide that is a complex carbohydrate. It is a polysaccharide that contains saccharides, which are sugars. The saccharides in this compound are monosaccharides, which are single sugar units. This compound has been modified and can be used for the detection of methylation.

6'-O-Sulfated Lewis X is a synthetic, sulfated, monosaccharide that is modified with fluorine and methyl groups. It is used in the synthesis of oligosaccharides and polysaccharides. 6'-O-Sulfated Lewis X has been found to be effective in the prevention of glycosylation and sugar formation. This compound can also be used for click modification, as well as for modifying proteins or DNA. The CAS number is 59037-07-4.

2-Acetamido-2-deoxy-4-O-(b-D-galactopyranosyl)-D-glucopyranose LacNAc isomer. This compound has been shown to inhibit pro-inflammatory cytokines in human bronchial epithelial cell lines, which may be helpful in treating inflammatory conditions. The compound can be analyzed using high-performance liquid chromatography (HPLC), which separates molecules based on their chemical properties. The acid residues present in the molecule make it an ideal target for antibodies and polymer-based drug delivery systems. In host cells, this compound is involved in various biological processes related to cell adhesion and signaling.

Chondroitin disaccharide 6S sodium salt is a synthetic, fluorinated, oligosaccharide that has been custom synthesized and glycosylated. It is a sugar-based compound with a high purity and excellent solubility in water. It was synthesized by click modification of the sugar monomer with an amine group at the reducing end. The chondroitin disaccharide 6S sodium salt was further modified with methylation to yield a product with a higher purity.

Blood group B trisacchharide-APE-HSA is a synthetic carbohydrate that inhibits the synthesis of complex carbohydrates. The methylation of saccharides and polysaccharides can be accomplished by the addition of an amine to the 3′ hydroxyl group. In this reaction, the sugar is attached to a protein carrier (e.g., human serum albumin) via an amide bond, which prevents its degradation by proteases in the body. The modification of saccharides and polysaccharides is also accomplished through click chemistry, which is based on copper catalysis. This process involves attaching two functional groups through a copper-mediated reaction, forming a new carbon-carbon bond. Modification of saccharides and oligosaccharides can be accomplished using either chemical or enzymatic methods. Sugar modification can be achieved using high purity enzymes that have been custom synthesized for specific purposes (e.g., glycosylation). Carbohydrate modification can

α-6⁴-6³-Di-galactosyl-mannopentaose is a specialized oligosaccharide, which is a type of complex carbohydrate. This compound is derived from natural plant sources and its structure comprises a mannopentaose core linked with two galactose units. The mode of action involves specific interactions with gut microbiota, where it selectively enriches beneficial bacterial populations, such as Bifidobacteria and Lactobacilli. These interactions occur by serving as a fermentation substrate, promoting the growth of microbes that confer beneficial effects on host health.

4-Glucopyranosylmannose is a disaccharide compound, which is a synthetic carbohydrate derived from the enzymatic or chemical glycosylation processes. It consists of glucose and mannose units linked through a glycosidic bond. The compound is sourced through advanced synthetic methodologies involving specific glycosyltransferases or chemical catalysts that facilitate the precise attachment of these sugar moieties.

1,3,6-Tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-b-D-galactopyranosyl)-2-azido-2-deoxy--D--glucopyranose is a modification of a natural sugar. It is an oligosaccharide that is composed of one monosaccharide and two disaccharides. The triacetate group on the first saccharide provides protection against hydrolysis and methylation reactions. This compound has been shown to be synthesized chemically in high purity and with high yield.

1,5-α-L-Arabinohexaose is a carbohydrate. It is a nonreducing sugar that can be found in plants. 1,5-α-L-Arabinohexaose has an optimum pH of 5 and an ethanol concentration of 0.02%. The enzyme form of 1,5-α-L-Arabinohexaose is α-(1→6)-glycosidase. This enzyme hydrolyzes the α-(1→6) glycosidic bond between two glucose residues in a polysaccharide chain to produce β-(1→4) bonds. It also hydrolyzes the β-(1→4) glycosidic bond between two galactose residues to produce β-(1→2) bonds and oxidizes the terminal carbon atom to produce aldehyde products.
A structural analysis of this carbohydrate was conducted using marine microorganisms and it was found that they contain galacturonic acid and sugar residues

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