发明授权
- 专利标题: Production method of 2,6-dihalopurine
- 专利标题(中): 2,6-二卤嘌呤的制备方法
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申请号: US10509802申请日: 2003-04-03
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公开(公告)号: US07307167B2公开(公告)日: 2007-12-11
- 发明人: Taketo Hayashi , Hiroharu Kumazawa , Takehiko Kawakami
- 申请人: Taketo Hayashi , Hiroharu Kumazawa , Takehiko Kawakami
- 申请人地址: JP Osaka
- 专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人地址: JP Osaka
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2002-102456 20020404
- 国际申请: PCT/JP03/04259 WO 20030403
- 国际公布: WO03/084958 WO 20031016
- 主分类号: C07D473/40
- IPC分类号: C07D473/40 ; C07B39/00
摘要:
By reacting the compound of the formula [Ia] or [Ib] with halosilane compound and an agent for diazo reaction, 2,6-dihalopurine of the formula [II] can be produced conveniently in a high yield and can be easily isolated, wherein each symbol is as defined in the specification
公开/授权文献
- US20050131229A1 Production method of 2,6-dihalopurine 公开/授权日:2005-06-16
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