Process for preparing CSA or CSC
AssigneeBiomed Research Inc.
InventorPerry G. Rucker
Life of this patent
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Abstract
An improved process or method for the preparation of pharmaceutical grade biologically and physiologically "active" chondroitin sulfate, predominantly chondroitin sulfate A, chondroitin sulfate C, and mixtures thereof from source material comprising forming a solution from the source material containing said "active" material, adding thereto a complexing agent to form a precipitate which is a water insoluble complex of the active material and the complexing agent, and breaking said complex to recover the pharmaceutical grade "active" material.
Claims10
In an improved process or method for the preparation of pharmaceutical grade biologically "active" chondroitin sulfate, predominantly condroitin sulfate A, chondroitin sulfate C, and mixtures thereof from source material comprising forming a solution from the source material containing said "active" material, the improvement comprising adding thereto a complexing agent selected from the group consisting of cetyl pyridinium chloride, a quarternary ammonium salt and an anion exchange resin to form a precipitate which is a water insoluble complex of the active material and the complexing agent, and breaking said complex to recover the pharmaceutical grade "active" material.
A water-insoluble complex of an "active" CSA and/or CSC and a complexing agent selected from the group consisting of cetyl pyridinium chloride, a quaternary ammonium salt and an anion exchange resin.
Dependencies are inferred from the claim text.