发明授权
- 专利标题: 2,3,4,5-tetrahalogenobenzene derivatives
- 专利标题(中): 2,3,4,5-四氢生物碱衍生物
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申请号: US459876申请日: 1990-01-02
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公开(公告)号: US5072038A公开(公告)日: 1991-12-10
- 发明人: Erich Klauke , Uwe Petersen , Klaus Grohe
- 申请人: Erich Klauke , Uwe Petersen , Klaus Grohe
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX3420796 19840604
- 主分类号: A61K31/47
- IPC分类号: A61K31/47 ; A61K31/495 ; A61K31/535 ; A61P31/04 ; C07B31/00 ; C07B39/00 ; C07C17/00 ; C07C17/14 ; C07C17/16 ; C07C17/18 ; C07C17/20 ; C07C25/13 ; C07C27/00 ; C07C33/46 ; C07C45/00 ; C07C45/29 ; C07C45/43 ; C07C47/24 ; C07C47/55 ; C07C51/00 ; C07C53/50 ; C07C63/70 ; C07C67/00 ; C07C233/00 ; C07C233/65 ; C07C253/00 ; C07C255/49 ; C07C255/50 ; C07D215/56 ; C07D401/04 ; C07D413/04
摘要:
2,3,4,5-trihalogenobenzene derivatives of the formula ##STR1## in which R is --COOH, --COCl, --COF, --CN, --CONH.sub.2, --CH.sub.2 OH, --CH.sub.2 Cl, --CHCl.sub.2, --CCl.sub.3 or --CHO,R.sup.1 is H, Cl or F, andR.sup.2 is Cl or F,it only being possible for R.sup.1 or R.sup.2 to be F, and processes for their preparation starting from benzonitriles reacted with potassium fluoride. The novel compounds are intermediates for antibacterials such as quinolone carboxylic acids.
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