Crystal structure of bis-[3-meth-oxy-17β-estra-1,3,5(10)-trien-17-yl] oxalate

In the title compound, C40H50O6, a symmetrical steroid oxalate diester, the dihedral angle between the CO2 planes of the oxalate linker is 61.5 (5)° and the C-C bond length is 1.513 (6) Å. The steroid B, C and D rings adopt half-chair, chair and envelope conformations, respectively, in both halves o...

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Bibliographic Details
Published in:Acta crystallographica. Section E, Structure reports online Structure reports online, 2014-08, Vol.70 (Pt 8), p.62-64
Main Authors: Harrison, William T A, Nahar, Lutfun, Turner, Alan B
Format: Article
Language:English
Subjects:
conformation
crystal structure
diester
oxalate
Research Communications
steroid
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Summary:In the title compound, C40H50O6, a symmetrical steroid oxalate diester, the dihedral angle between the CO2 planes of the oxalate linker is 61.5 (5)° and the C-C bond length is 1.513 (6) Å. The steroid B, C and D rings adopt half-chair, chair and envelope conformations, respectively, in both halves of the mol-ecule, which adopts an overall shallow V-shaped conformation. In the crystal, mol-ecules are linked by weak C-H⋯O inter-actions, forming a three-dimensional network.
ISSN:1600-5368
1600-5368
DOI:10.1107/S1600536814009349