Oligosacáridos

N-Acyl-neuraminyl lactoses are a class of modified N-glycosides that can be synthesized from monosaccharides, such as glucose and galactose. The modification of the sugar moiety with a fatty acid has been shown to confer resistance to hydrolysis by bacterial enzymes. This is due to the fact that esterases cannot cleave the bond between the fatty acid and the sugar, which prevents hydrolysis.
The synthesis of these compounds is achieved through an oxidative process using sodium hypochlorite in methanol solution. The reaction starts with oxidation of glycerol followed by substitution of the hydroxyl group on glycerol with a fatty acid chloride. The final product is then purified by liquid chromatography.

Man-5 N-glycan is a glycan that is synthesized by the enzyme mannosyltransferase. This glycan contains five mannose residues, one galactose residue, and one N-acetylglucosamine residue. The Man-5 N-glycan is found in eukaryotes, which are organisms whose cells have nuclei and membrane bound organelles. It is often found on the surface of cells or in secretions such as mucus or saliva. Man-5 N-Glycans are involved in cell signaling and may play a role in bladder cancer development. They are also used to generate monoclonal antibodies for diagnostic purposes.

Sucrose dipalmitate is a pharmaceutical dosage form that is made of sucrose, a high-energy sugar, and palmitic acid. It has a low energy content and can be used as a diagnostic agent in nuclear medicine. Sucrose dipalmitate can be used as an emulsifier in the preparation of nanoemulsions. The particle size of sucrose dipalmitate can be adjusted to achieve the desired effect. In addition, this compound is used for the treatment of cardiac disease and other conditions such as high blood pressure and diabetes.