Glycosides are compounds that yield one or more sugars upon hydrolysis. The term
glycoside is a generic term for natural product that is chemically bound to a sugar.
Thus the glycoside composes of two parts: the sugar and the aglycone. The aglycon
may be a terpene , a flavonoid, a coumarine or any other natural product. Glycoside
showed extra chemical diversity. Among the sugars found in natural glycosides, Dglucose
is the most abundant one, L rhamnose and L-fructose also occur quite
ferequently. Of the pentoses : L-arabinose is more common than D-xylose. The sugar
part can be disaccharide.