Method of producing biperiden I
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United States of America Patent
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Apr 25, 2006
Grant Date -
Aug 11, 2005
app pub date -
May 17, 2002
filing date -
May 18, 2001
priority date (Note) -
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Abstract
The invention relates to a method for producing biperiden which is characterized in that an exo/endo mixture of 1-(bicyclo[2.2.1]hept-5-en-2-yl)-3-piperidino-1-propanone is reacted with an isomer ratio of the exo form to the endo form of at least 2.5:1 with diphenyl magnesium, an isomer mixture containing biperiden is obtained therefrom and biperiden is produced therefrom.
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