5α-Dihydro­vespertilin acetate

In the title compound, C(24)H(36)O(4) [systematic name: (20S)-3β-acet­oxy-16α-hydr­oxy-22,23-bis­nor-5α,17β-cholano(22-16)lac­tone], the three six-membered rings adopt classical chair conformations, while the five-membered rings are in envelope conformations. The ester group attached to ring A is in...

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Detalles Bibliográficos
Autores principales: Benn, Michael, Vohra, Kanwal Nain, Parvez, Masood
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2010
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2983680/
https://www.ncbi.nlm.nih.gov/pubmed/21580359
http://dx.doi.org/10.1107/S160053681000512X
Descripción
Sumario:In the title compound, C(24)H(36)O(4) [systematic name: (20S)-3β-acet­oxy-16α-hydr­oxy-22,23-bis­nor-5α,17β-cholano(22-16)lac­tone], the three six-membered rings adopt classical chair conformations, while the five-membered rings are in envelope conformations. The ester group attached to ring A is in an equatorial position. Rings A/B, B/C and C/D are trans-fused, whereas rings D/E are cis-fused. The structure is devoid of any classical hydrogen bonds. However, non-classical inter- and intra­molecular hydrogen-bonding inter­actions of the type C—H⋯O are present in the structure.

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