Invention Grant
- Patent Title: Crystal forms of sulfonylurea compound and method for producing the same
- Patent Title (中): 磺酰脲化合物的晶体形式及其制备方法
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Application No.: US13505185Application Date: 2010-10-25
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Publication No.: US08765640B2Publication Date: 2014-07-01
- Inventor: Yoshiyuki Kusuoka , Yoshihiko Nakaya , Nao Kitayado
- Applicant: Yoshiyuki Kusuoka , Yoshihiko Nakaya , Nao Kitayado
- Applicant Address: JP Tokyo
- Assignee: Nissan Chemical Industries, Ltd.
- Current Assignee: Nissan Chemical Industries, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2009-252981 20091104; JP2010-190267 20100827
- International Application: PCT/JP2010/068845 WO 20101025
- International Announcement: WO2011/055649 WO 20110512
- Main IPC: C07D413/14
- IPC: C07D413/14 ; A01N43/88
Abstract:
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.
Public/Granted literature
- US20120220461A1 CRYSTAL FORMS OF SULFONYLUREA COMPOUND AND METHOD FOR PRODUCING THE SAME Public/Granted day:2012-08-30
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