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3α,4β-Di­hydroxy-5β-androstan-17-one

✍ Scribed by Andrade, L. C. R. ;Paixão, J. A. ;Almeida, M. J. M. de ;Fernandes Roleira, F. M. ;Sá e Melo, M. L. ;Campos Neves, A. S. ;Tavares da Silva, E. J.


Publisher
International Union of Crystallography
Year
2002
Tongue
English
Weight
284 KB
Volume
59
Category
Article
ISSN
1600-5368

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✦ Synopsis


The ring conformation of the title compound, C 19 H 30 O 3 , is similar to that of the 5-epimer except for the cis A/B ring junction. Ring D adopts a 13,14-half chair conformation. The molecules are linked together by a two-dimensional network of hydrogen bonds involving the carbonyl and hydroxyl groups.


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In the title molecule, C~21~H~31~ClO~4~, rings __A__, __B__ and __C__ have regular chair conformations, while ring __D__ has an envelope form. In the crystal structure, weak intermolecular C—H...O hydrogen bonds link the molecules into zigzag chains running along the __b__ axis.

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