PRODUCTION OF SLAT OF PHARMACEUTICALLY ACTIVE MATERIAL

    公开(公告)号:JPH1072400A

    公开(公告)日:1998-03-17

    申请号:JP16085497

    申请日:1997-06-18

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a salt of a pharmaceutically active material without lowering a quality, especially fluidity by reacting an acid with a base in a molten liquid so that the acid may be reacted with at least stoichiometric amount of the base in an extruder. SOLUTION: The objective salt of a pharmaceutically active material is obtained by reacting (A) a carboxylic acid with (B) a base in a molten liquid so that the acid may be reacted with at least stoichiometric amount of the base in an extruder. The method is preferably used for production of a salt of a derivative of salicylic acid, e.g. acetylasalicylic acid, or an arylcarboxylic acid, e.g. diclofenac, tolmetin or zomepirac. A basic α-aminocarboxylic acid, especially ricin, a base of an alkali(ne earth) metal, etc., are preferable as the component B. The amount of the above base is at least stoichiometric amount, preferably 1-40mol% excess based on the acid.

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