[EN] PROCESSES FOR THE PREPARATION OF ARTEMISININ AN ITS PRECURSORS<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ARTÉMISININE ET DE SES PRÉCURSEURS
申请人:AMYRIS BIOTECHNOLOGIES INC
公开号:WO2009088404A1
公开(公告)日:2009-07-16
The present invention provides processes for the preparation of artemisinin and its precursors including amorphadiene, amorphadiene epoxide, dihydroartemisinic alcohol and dihydroartemisinic acid. Specifically, artemisinin is prepared by multi-step synthetic processes from amorphadiene, amorphadiene epoxide, dihydroartemisinic alcohol or dihydroartemisinic acid. Processes for the preparation of amorphadiene, amorphadiene epoxide, dihydroartemisinic alcohol and dihydroartemisinic acid are also disclosed.