Piperazine derivatives and their use as synthesis intermediates
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United States of America Patent
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Jun 3, 2008
Grant Date -
Aug 17, 2006
app pub date -
Jan 20, 2004
filing date -
Jan 23, 2003
priority date (Note) -
Expired
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Abstract
The present invention relates to new enantiomerically pure piperazine derivatives of formula (I) wherein Y represents hydroxy or a leaving group and n is 1, 2, 3, 4 or 5, and to their use as synthesis intermediates, especially for the preparation of pharmaceutically active compounds ##STR00001##
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