[EN] PROCESSES FOR THE PREPARATION OF THIAZOLIDINEDIONE DERIVATIVES AND INTERMEDIATES<br/>[FR] PROCEDE DE PREPARATION DE DERIVES ET INTERMEDIAIRES DE THIAZOLIDINEDIONE
申请人:HOFFMANN LA ROCHE
公开号:WO2001079202A1
公开(公告)日:2001-10-25
The present invention is concerned with a novel process for the preparation of compounds of formula (I) comprising bromomethylation or chloromethylation of a compound of formula (II) and subsequent reaction with a compound of formula (III). The compounds of formula (I) and the corresponding salts, e.g. the sodium salts, are pharmaceutically active substances.