Ionic hydrogenation of estra-1,3,5(10),8,14-pentaenes
摘要:
The direction of ionic hydrogenation of estra-1,3,5(10),8,14-pentaenes with triethylsilane in the presence of trifluoroacetic acid is determined by the nature of substituents in the A and B rings. The hydrogenation of 7 beta-methyl-3-methoxy-D-homo-6-oxaestra-1,3,5(10),8,14-pentaen-17a beta-yl acetate gives mainly 9 beta-analog, which provides the possibility for synthesizing new inhibitors of enzymes responsible for metabolism of steroidal estrogens.
Ionic hydrogenation of estra-1,3,5(10),8,14-pentaenes
摘要:
The direction of ionic hydrogenation of estra-1,3,5(10),8,14-pentaenes with triethylsilane in the presence of trifluoroacetic acid is determined by the nature of substituents in the A and B rings. The hydrogenation of 7 beta-methyl-3-methoxy-D-homo-6-oxaestra-1,3,5(10),8,14-pentaen-17a beta-yl acetate gives mainly 9 beta-analog, which provides the possibility for synthesizing new inhibitors of enzymes responsible for metabolism of steroidal estrogens.