[EN] TOTAL SYNTHESIS OF ENANTIOPURE DESOGESTREL<br/>[FR] SYNTHÈSE TOTALE DE DÉSOGESTREL ÉNANTIOPUR
申请人:UNIV GOETTINGEN GEORG AUGUST
公开号:WO2009033499A1
公开(公告)日:2009-03-19
The present invention relates to a total synthesis of desogestrel and derivatives thereof, and to intermediate compounds of this synthesis.
本发明涉及去甲酮炔雌醇及其衍生物的全合成,以及该合成的中间化合物。
Enantioselective Total Synthesis of the Oral Contraceptive Desogestrel by a Double Heck Reaction
作者:Lutz F. Tietze、Ilga K. Krimmelbein
DOI:10.1002/chem.200700182
日期:2008.2.8
A novel enantioselectivetotalsynthesis of the oralcontraceptivedesogestrel (2) is described, in which the tetracyclic steroid core is formed by a sequence of two consecutive Heckreactions. Conversion of the known enantiopure diketone 7 led to the chiral bicycle 6 which was used for a diastereoselective intermolecular Heckreaction with vinyliodide 5 to give 15. In the following intramolecular