A New Regioselective Synthesis of 1,2,5-Trisubstituted 1H-Imidazoles and Its Application to the Development of Eprosartan
摘要:
A new method is presented for the preparation of 1,2-disubstitued-1H-imidazole-5-carboxaldehydes by the reaction of N-monosubstituted amidines with 2-halo-3-alkoxy-2-propenals. The reaction is highly regioselective with ratios of 1,2,5:1,2,4-imidazolecarboxaldehydes ranging from 85:15 to 100: 0. This methodology could be extended with similar results to the synthesis of imidazole-g-nitriles by the reaction of 2-bromo-3-methoxy-2-propenenitrile with N-monosubstituted amidines.
PROCESS OF SYNTHESIZING USEFUL INTERMEDIATES OF SUBSTITUTED IMIDAZOLE COMPOUNDS
申请人:SMITHKLINE BEECHAM CORPORATION
公开号:EP0662961B1
公开(公告)日:1999-11-10
INTERMEDIATE FOR PREPARING A PHARMACEUTICALLY ACTIVE COMPOUND
申请人:SMITHKLINE BEECHAM CORPORATION
公开号:EP0850225B1
公开(公告)日:2003-08-13
US5565577A
申请人:——
公开号:US5565577A
公开(公告)日:1996-10-15
US5719293A
申请人:——
公开号:US5719293A
公开(公告)日:1998-02-17
[EN] PROCESS OF SYNTHESIZING USEFUL INTERMEDIATES OF SUBSTITUTED IMIDAZOLE COMPOUNDS<br/>[FR] PROCEDE DESTINE A SYNTHETISER DES INTERMEDIAIRES UTILES DE COMPOSES D'IMIDAZOLE SUBSTITUES
申请人:SMITHKLINE BEECHAM CORPORATION
公开号:WO1994006776A1
公开(公告)日:1994-03-31
(EN) This invention relates to a process for preparing 1-alkylaryl-2-alkyl-5-formylimidazoles.(FR) Procédé de préparation de 1-alkylaryle-2-alkyle-5-formylimidazoles.