发明授权
- 专利标题： Crystal forms of sulfonylurea compound and method for producing the same
- 专利标题（中）： 磺酰脲化合物的晶体形式及其制备方法
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申请号： US13505185申请日： 2010-10-25
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公开(公告)号： US08765640B2公开(公告)日： 2014-07-01
- 发明人: Yoshiyuki Kusuoka , Yoshihiko Nakaya , Nao Kitayado
- 申请人： Yoshiyuki Kusuoka , Yoshihiko Nakaya , Nao Kitayado
- 申请人地址： JP Tokyo
- 专利权人： Nissan Chemical Industries, Ltd.
- 当前专利权人： Nissan Chemical Industries, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oliff PLC
- 优先权： JP2009-252981 20091104; JP2010-190267 20100827
- 国际申请： PCT/JP2010/068845 WO 20101025
- 国际公布： WO2011/055649 WO 20110512
- 主分类号： C07D413/14
- IPC分类号： C07D413/14 ; A01N43/88
摘要：
Crystal forms of sulfonylurea compound and method for producing the same. It has been found that a sulfonylurea compound of Formula (1): has two types of crystal polymorphisms and four types of pseudo crystal polymorphisms. A production method of each crystal form of the sulfonylurea compound of Formula (1) through recrystallization or solvate has been also found. In addition, a suspension of a composition containing the crystal that is improved in storage stability is provided.
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