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carbohydrate synthesis
Carbohydrate synthesis is a sub-field of organic chemistry concerned specifically with the generation of natural and unnatural carbohydrate structures. This can include the synthesis of monosaccharide residues or structures containing more than one monosaccharide, known as oligosaccharides.
== Background ==
Generally speaking, carbohydrates can be classified into two groups, simple sugars and complex carbohydrates. Simple sugars, also called monosaccharides, are carbohydrates which can not be converted into smaller sugars by hydrolysis.〔John McMurry.; ''Organic Chemistry'', 5th ed.; Brooks/Cole.; 2000, pp 1031〕 When two or more monosaccharide units are connected to one another via a glycoside linkage, complex carbohydrates are formed. Complex carbohydrates, according to the different number of monosaccharide units, can be classed into three groups, disaccharides, oligosaccharides, and polysaccharides. A disaccharide is formed from two monosaccharides. Oligosaccharides can be formed by a small number of monosaccharides linked together. Higher oligosaccharides are called polysaccharides. It is now well known that glycoconjugates play an indispensable role in many biological processes. These biological processes in which carbohydrates are involved are typically associated not to monosaccharides, but to oligosaccharides structures of glycoconjugates. Therefore, the oligosaccharide synthesis becomes more and more important in studying the biological activities.〔Daniel E. Levy & Péter Fügedi.; ''The organic chemistry of sugars''; Taylor & Francis: 2006, pp 181-197〕
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