Process for preparing crystalline form I of cabergoline

   
   

A process for producing crystalline form I of cabergoline, which process comprises crystallization of the desired form from a toluene/diethyl ether mixture comprising raw cabergoline, followed by recovery and drying of the resulting crystals. A new solvate form V of cabergoline, useful as an intermediate, is also provided.

Un proceso para producir la forma cristalina I de cabergoline, que el proceso abarca la cristalización de la forma deseada de una mezcla del éter de toluene/diethyl que abarca cabergoline crudo, siguió por la recuperación y la sequedad de los cristales que resultaban. Una nueva forma V del solvate de cabergoline, útil como intermedio, también se proporciona.

 
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