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.
Abstract:
PROCEDIMIENTO PARA LA FABRICACION DE SALES DE SUSTANCIAS ACTIVAS FARMACEUTICAS QUE LLEVAN GRUPOS ACIDOS MEDIANTE TRANSFORMACION DE LOS ACIDOS CARBONICOS CON UNA BASE EN LA FUSION, TRANSFORMANDO LOS ACIDOS CON UNA CANTIDAD ESTEQUIMETRICA COMO MINIMO DE UNA BASE EN LA EXTRUSIONADORA.
Abstract:
Preparation of a salt of a pharmaceutically active carboxylic acid compound comprises reacting the acid in an extruder with ≥ 1 stoichiometric equivalent of a base in melt form.
Abstract:
Verfahren zur Herstellung von Salzen von Säuregruppen tragenden pharmazeutischen Wirkstoffen durch Umsetzung der Carbonsäuren mit einer Base in der Schmelze, indem man die Säuren mit einer mindestens stöchiometrischen Menge einer Base im Extruder umsetzt.