Glycoscience

2,3,5-Tri-O-benzyl-b-D-ribofuranose is a synthetic monosaccharide that is used in the synthesis of complex carbohydrates such as glycosylation and polysaccharides. One use for this chemical is to modify the sugar moiety with methyl groups, yielding 2,3,5-tri-O-methyl b-D-ribofuranose. This modification helps prevent the sugar from being metabolized by enzymes in the body. The chemical can also be fluorinated to yield 2,3,5-trifluoro b-D-ribofuranose.

1,3,5-Tri-O-benzoyl-a-D-ribofuranose is a modified carbohydrate. It is synthesized by the methylation of 1,3,5-tri-O-benzoyl-a-D-arabinopyranose followed by glycosylation with 3,6-dideoxyhexose. This compound has been used as a substrate in enzymatic studies to investigate the modification of carbohydrates by glycosylation and methylation and can be used for the synthesis of other saccharides.

α 1,4-glucodecasaccharide derived from starch by hydrolysis and chromatography

Isorhamnetin 3-O-galactoside is a flavonoid derivative that is found in plant tissue. It has antioxidant properties and has been shown to inhibit leucaena seed germination, growth, and the production of reactive oxygen species (ROS). Isorhamnetin 3-O-galactoside can be extracted from fruit by using an aqueous solution of potassium hydroxide. It is also used as a dietary supplement for its potent inhibitory activity on ROS. Isorhamnetin 3-O-galactoside is found in plants with other flavonoids such as quercetin and kaempferol. The chemical structure of this compound consists of a hydroxyl group at the C3 position and an O-glycosidic linkage to galactose at the C2 position. This compound can be detected by mass spectrometric methods such as electron ionization or electrospray ionization because it

(1S) -1- [(2S, 3R) - N-Butyl-3- hydroxy- 1- azetidinyl] -1, 2- ethanediol is a synthetic carbamate which is a modification of the sugar D-glucose. It has been fluorinated at the C4 position and glycosylated at the C2 position. This compound is also methylated at the C3 position. (1S) -1- [(2S, 3R) - N-Butyl-3- hydroxy- 1- azetidinyl] -1, 2- ethanediol has CAS number 7145636 and has been custom synthesized to be high purity and with custom synthesis modifications.

N-Butyldeoxymannojirimycin HCl is a custom synthesis, complex carbohydrate that is synthesized from Oligosaccharides and Polysaccharides. This product is modified with Methylation, Glycosylation, and Carbohydrate. It has the CAS No. 155501-85-2 and it is high purity and fluorinated. The product can be used in Synthetic applications such as Click modification, sugar, or Fluorination.

Used to determine composition and sequence of glucan-containing mixed linkages

This beta-cyclodextrin (β-CD) derivative is a functionalized cyclic oligosaccharide composed of seven glucose units, characterized by a hydrophilic exterior and a lipophilic cavity (bigger than α-CD and smaller than γ-CDs), which allows it to encapsulate various guest molecules. This structural feature facilitates its use in multiple applications, including pharmaceuticals, food enhancement, and cosmetics. In the pharmaceutical industry, it enhances the solubility and stability of poorly water-soluble drugs, improving their bioavailability and efficacy while also masking unpleasant tastes. The food sector utilizes it as a stabilizer for flavors, colors, and nutrients, extending shelf life by protecting sensitive ingredients from degradation. In cosmetics, it serves as a complexing agent for fragrances and active components, ensuring their stability and controlled release. Its use expands to many other fields, including nanotechnology for drug delivery systems, environmental remediation for extracting organic pollutants, textiles for slow-release fragrances, and analytical chemistry for chiral separation.

Iota-Carageenan is a gelling sulphated galactan extracted from red seaweed (typically Euchuma cottonii and Euchuma spinosum). The structure of all carrageenans consists of a strictly alternating masked repeating unit of (1,3) linked α-D-galactose and (1,4) linked β-D-galactose. The α-linked galactose occurs as a 3,6-anhydro-2-sulphate unit and the β-linked sugar occurs as the 4-sulphate.
The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.

2-Acetamido-2,6-dideoxy-D-galactose (2ADG) is a structural analogue of the natural monosaccharide 2,6-dideoxy-D-galactose. It has been shown to have an antimicrobial effect against aerobacter aerogenes in vitro. 2ADG is metabolized by glycosidases and methyl glycosides to form 1,4-anhydro-2,3,4,6 tetraacetamido-2,4,6 dideoxy D galactose. This compound inhibits the growth of bacterial strains that are resistant to polymyxin b., such as Pseudomonas aeruginosa. The inhibition of these bacteria is due to the inhibition of the synthesis of their outer membrane lipopolysaccharides by 2ADG. The antibacterial activity is also attributed to its ability to inhibit the metabolism of glycan molecules in some bacteria

Dermatan sulphate is a glycosaminoglycan found in skin, blood vessels, heart valves, tendons, aorta, spleen and brain and is usually isolated from pig skin or beef lung tissue. The disaccharide repeat unit is composed of L-iduronic acid and N-acetyl-galactosamine-4-sulphate linked β-(1,3) and β-(1,4). There are also small amounts of D-glucuronic acid.

2-Deoxy-2-fluoro-D-arabinofuranose is a purine nucleoside that is used in the diagnosis and treatment of herpes simplex virus infection. It inhibits viral replication by competitively inhibiting acycloguanosine, an enzyme that catalyzes the conversion of 2’-deoxyguanosine to deoxyadenosine. 2-Deoxy-2-fluoro-D-arabinofuranose has been shown to be active against cancer cells and can be used as chemotherapeutic agent. This drug may also be used for the diagnosis of cancer by detecting the presence of activated T cells in patients with tumor necrosis factor α (TNFα) receptor gene polymorphism.