MALEIC ACID SALT AND CRYSTAL THEREOF
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United States of America Patent
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Issued Date -
Sep 27, 2012
app pub date -
Sep 27, 2010
filing date -
Sep 25, 2009
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Abstract
Disclosed is a benz[d][1,3]oxazine derivative having excellent stability when used as an active ingredient for a medicinal agent, and also having excellent solubility and crystallinity. Specifically disclosed is 2-[2-((S)-3-dimethylaminopyrrolidin-1-yl)pyridin-3-yl]-5-ethyl-7-methoxy-4H-benz[d][1,3]oxazin-4-one maleate.
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