Method for producing benzazepinone
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United States of America Patent
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Sep 4, 2012
Grant Date -
Jul 2, 2009
app pub date -
Jan 31, 2007
filing date -
Jan 31, 2006
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Expired
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Abstract
It is an object of the present invention to provide 2-iminocarboxylic acid derivatives, and a practically suitable industrial method for producing benzazepinones in a short process under mild conditions. The present invention provides a method for producing a benzazepinone or a salt thereof, which comprises opening a ring of an isoquinoline derivative and subsequently converting the thus generated amine into a benzazepinone through lactamization reaction.
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