[EN] BENZOPROSTACYCLIN INTERMEDIATES AND METHODS FOR THEIR PREPARATION [FR] INTERMEDIAIRES DE BENZOPROSTACYCLINE ET PROCEDES DE PREPARATION DE CES INTERMEDIAIRES
[EN] BENZOPROSTACYCLIN INTERMEDIATES AND METHODS FOR THEIR PREPARATION<br/>[FR] INTERMEDIAIRES DE BENZOPROSTACYCLINE ET PROCEDES DE PREPARATION DE CES INTERMEDIAIRES
申请人:JOHNSON MATTHEY PLC
公开号:WO2004005274A1
公开(公告)日:2004-01-15
Benzoprostacyclin intermediates and methods for their preparation are disclosed. The intermediates may be used to synthesise Beraprost which is a valuable drug for the treatment of pulmonary vascular and peripheral vascular diseases. The intermediates are synthesised via a convergent seven step approach based on the known racemic cyclopentenone intermediate (±)-2-(2-allyloxy-3-bromophenyl)-4-hydroxy-cyclopent-2-enone (1).