Coupling reactions useful in the preparation of (1h-tetrazol-5-yl) biphenyl derivatives
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United States of America Patent
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Apr 20, 2010
Grant Date -
Jun 7, 2007
app pub date -
Feb 1, 2005
filing date -
Feb 2, 2004
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Expired
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Abstract
The present invention relates to a process for the manufacture of intermediates that may be used for the manufacture of ARBs (also called angiotension II receptor antagonists or AT1 receptor antagonists) comprising as a common structural feature a (1H-tetrazol-5-yl)-biphenyl ring.
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