This invention relates to {HEAD ~ the stereospecific process} for the preparation, separation and {TAIL ~ purification} of hexahydrodibenzofurans which are used in the preparation of the 5HT3 compounds 
This invention relates to { HEAD ~ the stereospecific process } for the preparation , separation and { TAIL ~ purification } of hexahydrodibenzofurans which are used in the preparation of the 5HT3 compounds
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