发明名称 |
A PROCESS FOR PREPARING BENZOCYCLOHEPTAPYRIDIN-11-ONES |
摘要 |
A novel method for generating dianions using 3-methylpyridine-2-carboxylic acid derivatives of formula (V) or using their corresponding alkali metal salts of formula (VI), preferably from their lithium salt (Scheme 3) is described. The substituents R<1>, R<2>, R<3>, R<4>, R<5>, R<6> and R<7> in Scheme 3 are defined as herein described above. Preferably the substituents are selected from one or more of hydrogen, halogen or C1-C6 alkyl groups. M is represented by any alkali metal ion, preferably lithium.
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申请公布号 |
WO0005215(A1) |
申请公布日期 |
2000.02.03 |
申请号 |
WO1999IE00054 |
申请日期 |
1999.06.18 |
申请人 |
RUSSINSKY LIMITED;SCHICKANEDER, HELMUT;NIKOLOPOULOS, AGGELOS;KOCHER, CHRISTIAN;MULCAHY, DAVID |
发明人 |
SCHICKANEDER, HELMUT;NIKOLOPOULOS, AGGELOS;KOCHER, CHRISTIAN;MULCAHY, DAVID |
分类号 |
C07D221/16;C07D401/04;(IPC1-7):C07D221/16 |
主分类号 |
C07D221/16 |
代理机构 |
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地址 |
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