Process for the preparation of meso-zeaxanthin

   
   

A process for the preparation of optically pure acetylenediols of the formulae R-I and S-I ##STR1## and their further reaction to give meso-zeaxanthin are described.

Un ## del proceso para la preparación de los acetylenediols ópticamente puros de los fórmulas R-I y del ## STR1 del S-I y su reacción posterior para dar el meso-meso-zeaxanthin se describen.

 
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