PROCESSES FOR PREPARING 1-BUTYL-2-[2'-(2H-TETRAZOL-5-YL)-BIPHENYL-4-YLMETHYL]-1H-INDOLE-3-CARBOXYLIC ACID
申请人:SYNTEX (U.S.A.) INC.
公开号:EP0760815A1
公开(公告)日:1997-03-12
US5412102A
申请人:——
公开号:US5412102A
公开(公告)日:1995-05-02
US5446121A
申请人:——
公开号:US5446121A
公开(公告)日:1995-08-29
[EN] PROCESSES FOR PREPARING 1-BUTYL-2-[2'-(2H-TETRAZOL-5-YL)-BIPHENYL-4-YLMETHYL]-1H-INDOLE-3-CARBOXYLIC ACID<br/>[FR] PROCEDE DE PREPARATION DE L'ACIDE 1-BUTYL-2-[2'-(2H-TETRAZOL-5-YL)BIPHENYL-4-YLMETHYL]-1H-INDOLE-3-CARBOXYLIQUE
申请人:SYNTEX (U.S.A.) INC.
公开号:WO1995032962A1
公开(公告)日:1995-12-07
(EN) The present invention relates to processes for preparing 1-butyl-2-[2'-(2$i(H)-tetrazol-5-yl)biphenyl-4-ylmethyl]-1$i(H)-indole-3-carboxylic acid and to intermediates useful in such processes. The present invention also relates to a process for deprotecting compounds containing a protected 2$i(H)-tetrazolyl group, which process comprises reacting a protected compound with a Lewis acid in the presence of a thiol.(FR) L'invention concerne des procédés de préparation de l'acide 1-butyl-2-[2'-(2$i(H)-tétrazol-5-yl)biphényl-4-ylméthyl]-1$i(H)-indole-3-carboxylique et des intermédiaires utilisés dans de tels procédés. L'invention concerne également un procédé de déprotection de composés contenant un groupe 2$i(H)-tétrazolyle protégé, ce procédé consistant à faire réagir un composé protégé avec un acide de Lewis en présence d'un thiol.
Processes for preparing 1-butyl-2-[2'-(2H-tetrazol-5-yl)
申请人:Syntex (U.S.A.) Inc.
公开号:US05412102A1
公开(公告)日:1995-05-02
The present invention relates to processes for preparing 1-butyl-2-[2'-(2H-tetrazol-5-yl)biphenyl-4-ylmethyl]-1H-indole-3-carboxyli c acid and to intermediates useful in such processes. The present invention also relates to a process for deprotecting compounds containing a protected 2H-tetrazolyl group, which process comprises reacting a the protected compound with a Lewis acid in the presence of a thiol.