Process of synthesis of a tricyclic ketone intermediate
申请人:Schering Corporation
公开号:US06608202B1
公开(公告)日:2003-08-19
In one embodiment, the present invention describes the synthesis of a compound of Formula III, wherein X is halogen,
and intermediates therefor from easily available starting materials by a simple route.
A PROCESS OF SYNTHESIS OF A TRICYCLIC KETONE INTERMEDIATE
申请人:SCHERING CORPORATION
公开号:EP1421068A1
公开(公告)日:2004-05-26
US6608202B1
申请人:——
公开号:US6608202B1
公开(公告)日:2003-08-19
[EN] A PROCESS FOR PREPARING BENZOCYCLOHEPTAPYRIDIN-11-ONES<br/>[FR] PROCEDE PERMETTANT DE PREPARER DES BENZOCYCLOHEPTAPYRIDIN-11-ONES
申请人:RUSSINSKY LTD
公开号:WO2000005215A1
公开(公告)日:2000-02-03
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, R2, R3, R4, R5, R6 and R7¿ in Scheme 3 are defined as herein described above. Preferably the substituents are selected from one or more of hydrogen, halogen or C¿1?-C6 alkyl groups. M is represented by any alkali metal ion, preferably lithium.
[EN] A PROCESS OF SYNTHESIS OF A TRICYCLIC KETONE INTERMEDIATE<br/>[FR] PROCEDE DE SYNTHESE D'UN INTERMEDIAIRE DE CETONE TRICYCLIQUE
申请人:SCHERING CORP
公开号:WO2003016281A1
公开(公告)日:2003-02-27
In one embodiment, the present invention describes the synthesis of a compound of Formula III, wherein X is halogen, 'Chemical formula should be inserted here as it appears on abstract in paper form'and intermediates therefor from easily available starting materials by a simple route.