[EN] PROCESS FOR THE PREPARATION OF EPOTHILONE PRECURSOR COMPOUNDS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS PRÉCURSEURS DE L'ÉPOTHILONE
申请人:HOFFMANN LA ROCHE
公开号:WO2009112077A1
公开(公告)日:2009-09-17
The invention relates to a novel process for the preparation of an epothilone derivative of the formula (I) wherein R1 and R2 are silyl protecting groups, that uses a sultam alcohol of the formula (IV) wherein R is hydrogen or lower alkyl and R1 is a silyl protecting group, as intermediate. The compound of formula (I) is useful for the preparation of desoxyepothilones that are promising candidates for novel anticancer agents.