945652-12-0Relevant articles and documents
METHOD FOR PRODUCING BENZAZEPINONE
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Page/Page column 17, (2008/12/04)
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.