Process for the preparation of glucosamine salts

Details Process for the preparation of glucosamine salts Process for the preparation of glucosamine salts

2006-11-28

2006-11-28

Jiang, Shaojia A. (Department: 1623)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Carbohydrate doai

C536S055200, C205S421000

Reexamination Certificate

active

07141556

ABSTRACT:
This invention relates to a process for the preparation of glucosamine sulfate, glucosamine hydroiodide, glucosamine pyruvate, glucosamine phosphate or their mixtures with glucosamine hydrochloride, by electrodialysis. Starting from glucosamine hydrochloride, the exchange of the Cl−for an anion selected from the group consisting of SO4−2, I−, CH3COCOO−and PO4−3takes place during the process. The electrodialyser comprises a cathode, anode, and means of separation composed of anion exchange membranes, cation exchange membranes, bipolar membranes or by other suitable means of separation. This invention also relates to a glycosamine sulphate containing chlorides obtainable by the process, and its therapeutic use.

REFERENCES:
patent: 3683076 (1972-08-01), Luigi et al.
patent: 5902801 (1999-05-01), Schleck et al.
patent: 525 861 (1972-07-01), None
patent: 1 056 331 (1967-01-01), None
patent: WO 01/82938 (2001-11-01), None
patent: WO 02 066667 (2002-08-01), None

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