Abstract
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 7β-methyl-3-methoxy-D-homo-6-oxaestra-1,3,5(10),8,14-pentaen-17aβ-yl acetate gives mainly 9β-analog, which provides the possibility for synthesizing new inhibitors of enzymes responsible for metabolism of steroidal estrogens.
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Original Russian Text © S.N. Morozkina, S.K. Nikol’skaya, A.S. Chentsova, A.S. Drozdov, G.L. Starova, S.I. Selivanov, A.G. Shavva, 2012, published in Zhurnal Organicheskoi Khimii, 2012, Vol. 48, No. 9, pp. 1246–1251.
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Morozkina, S.N., Nikol’skaya, S.K., Chentsova, A.S. et al. Ionic hydrogenation of estra-1,3,5(10),8,14-pentaenes. Russ J Org Chem 48, 1245–1251 (2012). https://doi.org/10.1134/S1070428012090175
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DOI: https://doi.org/10.1134/S1070428012090175