TOTAL SYNTHESIS OF MODIFIED STEROIDS .I. 8BETA-METHYL-D-HOMO-B-NORESTRANES

被引:11
作者
FRANCE, DJ
HAND, JJ
LOS, M
机构
[1] Chemical Research and Development Laboratories, Agricultural Division, American Cyanamid Co., Princeton, NJ
关键词
D O I
10.1016/S0040-4020(01)82935-5
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The total synthesis of a variety of 8β-methyl-d-homo-B-norestranes is described. Reduction of the C-9 (11) double bond gives stereospecifically the 9β-isomer as determined by the complete X-ray analysis of a bromo derivative. Estranes differing only in their stereochemistry at C-14 can be prepared by initial reduction of tricyclic intermediates 5a and 12 followed by cyclization to yield 26 and 27. © 1969.
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页码:4011 / &
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