发明授权
- 专利标题: Substituted phthalide derivatives
- 专利标题(中): 取代的苯酞衍生物
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申请号: US949479申请日: 1978-10-10
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公开(公告)号: US4188330A公开(公告)日: 1980-02-12
- 发明人: Thomas J. Giacobbe , Halbert C. White
- 申请人: Thomas J. Giacobbe , Halbert C. White
- 申请人地址: MI Midland
- 专利权人: The Dow Chemical Company
- 当前专利权人: The Dow Chemical Company
- 当前专利权人地址: MI Midland
- 主分类号: C07D307/88
- IPC分类号: C07D307/88
摘要:
Method of preparing chlorthalidone, an antihypertensive agent, and derivatives using a novel 3-(4'-chloro-3'-chlorosulfonylphenyl)phthalide intermediate and derivatives, and method of preparing said novel intermediate, are disclosed.
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