2 ENANTIOSELECTIVE SYNTHESES OF A PRECURSOR OF THE BIOLOGICALLY MOST ACTIVE ISOMER OF CGA 80000 (CLOZYLACON)

被引:36
作者
BUSER, HP [1 ]
PUGIN, B [1 ]
SPINDLER, F [1 ]
SUTTER, M [1 ]
机构
[1] CIBA GEIGY AG,CENT RES LABS,CH-4002 BASEL,SWITZERLAND
关键词
D O I
10.1016/S0040-4020(01)86523-6
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The unchlorinated precursor 4 of CGA 80000 (1) was synthesized enantioselectively by two conceptionally different routes: a) by a ''chiral pool'' approach starting from L-malic acid and b) by enantioselective hydrogenation of an enamide intermediate, catalyzed by chiral Rh- or Ru-phosphine-complexes.
引用
收藏
页码:5709 / 5716
页数:8
相关论文
共 23 条