Preparation of pure citalopram

   
   

The present invention relates to an industrially advantageous method for the purification of Citalopram (Formula I) wherein desmethyl citalopram (Formula II), present in crude Citalopram as an impurity, is methylated to produce pure Citalopram. The resulting Citalopram product is isolated as the base or a pharmaceutically acceptable salt thereof ##STR1##

La actual invención se relaciona con un método industrial ventajoso para la purificación de Citalopram (fórmula I) en donde el citalopram del desmethyl (fórmula II), presente en Citalopram crudo como impureza, se desnaturaliza para producir Citalopram puro. El producto de Citalopram que resulta se aísla como la base o ## farmacéutico aceptable del ## STR1 de la sal de eso

 
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