Potassium Hydroxide → Oleoside

Participants

Reaction Conditions

Reaction Steps

Oleuropein (1 g) is dispersed in 50 ml of methanol. The solution is cooled to about 10° C. and treated with stirring with about 2 g of potassium hydroxide pellets. The mixture is allowed to warm to room temperature and after about 6 hours, the reaction mixture is diluted with about 60 ml of 6 N HCl (pH about 7.5) and evaporated to dryness. The chromatographic purification of the product mixture provides oleoside [Formula I; R=glycosyl, R1=methyl]. The purified oleoside is formulated into a solid oral dosage form containing about 250 mg of oleoside. Alternatively, oleoside is dissolved in sterile isotonic saline at a concentration of about 5 mg per ml to provide a parenteral dosage form for use in accordance with the method of this invention.

Provenance & Evidence