PROCESS FOR THE PREPARATION OF HETEROCYCLIC INDENE ANALOGS
申请人:F. HOFFMANN-LA ROCHE AG
公开号:EP1355880A2
公开(公告)日:2003-10-29
US6777559B2
申请人:——
公开号:US6777559B2
公开(公告)日:2004-08-17
US7169935B2
申请人:——
公开号:US7169935B2
公开(公告)日:2007-01-30
[EN] PROCESS FOR THE PREPARATION OF HETEROCYCLIC INDENE ANALOGS<br/>[FR] PROCEDE DE PREPARATION D'ANALOGUES D'INDENE HETEROCYCLIQUES
申请人:HOFFMANN LA ROCHE
公开号:WO2002059089A2
公开(公告)日:2002-08-01
The present invention is concerned with a novel process for the preparation of compounds of formula (I) wherein R1, R2 and X are as defined in the specification, comprising cyclocarbonylation of a compound of formula (II) wherein R?1, R2, R3¿ and X are as defined in the specification, to produce a compound of formula (III) wherein R?1, R2, R4¿ and X are as defined in the specification, followed by saponification.