Studies towards a total synthesis of the antiprogestine onapristone

被引:10
作者
Enev, VS [1 ]
Petrov, OS [1 ]
Neh, H [1 ]
Nickisch, K [1 ]
机构
[1] SCHERING AG,PROC RES,D-13342 BERLIN,GERMANY
关键词
D O I
10.1016/S0040-4020(97)00934-4
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Starting from the readily available Eder-Hajosh ketone 2 a stereoselective method for synthesis of arylated hydrindenone 14 was developed. One pot Li/NH3 reduction and trapping of the generated enolate with activated Michael acceptor gave a properly substituted BCD-ring precursor 22. Attempted B ring closure with the model compound 22 failed under various conditions. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码:13709 / 13718
页数:10
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