A method of preparing mixed glucosamine salts

Details A method of preparing mixed glucosamine salts A method of preparing mixed glucosamine salts

A - Human Necessities

61

K

A61K 31/70 (2006.01) C07H 5/06 (2006.01)

Patent

CA 2212129

A method of preparing a therapeutically active crystalline form of glucosamine sulphate which is stable at ambient temperature and humidity and corresponds to the empirical formula: see formula I in which M represents a metal selected from the group consisting of Na, K, Ca, Mg, x = 1 if y = 2, and x = 2 if y = 1, wherein glucosamine hydrochloride and a sulphate of a metal selected from Na, K, Ca, Mg are reacted in the stoichiometric ratio defined by formula (I), in an aqueous solvent, and the stable crystalline form is precipitated by the addition of a liquid precipitating agent immiscible with water.

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