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Clinical pharmacy PharmD program Third level Phytochemistry-1 (PG-504)

2. According to the type of glycosidic linkage

into -glycosides and -glycosides: according to whether the glycone or the
sugar is an - or a -sugar.

Hemi-acetal: Sugar

- 3 Based on the nature of the simple sugar (glycone) component of the glycoside :

Glucosides (the glycone is glucose)

Galactosides: (……. is galactose) …etc.

Rhamnoside: is ………Rhamnose

Glucorhamnoside: is ……. Glucose and rhamnose

- 4 Classification according to the number of monosaccharide units

- Monosides (one monosaccharide unit).

- Biosides (two monosaccharide units).

- Triosides (three monosaccharide units).

- Tetrosides, Pentosides, ... etc.

5- Classification according to the correlation to the parent natural glycoside: in this
system the natural parent glycoside is referred to as the primary glycoside.

➢ The glycoside that is obtained through the elimination of one monosaccharide unit
from this parent glycoside is called the secondary glycoside; and

➢ that which is given after the elimination of two monosaccharide units is called the
tertiary glycoside ... and so on.
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