The furanosteroid viridiol

The asymmetric unit of the title compound, C20H18O6 (systematic name: 1β,3β-dihydroxy-2β-methoxyfuro[4′,3′,2′:4,5,6]-18-norandrosta-8,11,13-triene-7,17-dione), a dihydro derivative of the fungal steroid viridin, contains two molecules with sim...

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Bibliographic Details
Main Authors: Pierre F. Andersson, Anders Broberg, Daniel Lundberg
Format: Article
Language:English
Published: International Union of Crystallography 2013-04-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536813005606
Description
Summary:The asymmetric unit of the title compound, C20H18O6 (systematic name: 1β,3β-dihydroxy-2β-methoxyfuro[4′,3′,2′:4,5,6]-18-norandrosta-8,11,13-triene-7,17-dione), a dihydro derivative of the fungal steroid viridin, contains two molecules with similar conformations. The rings bearing the hydroxy groups adopt boat conformations. The absolute structure was assigned based on the known chirality of a precursor compound. In the crystal, molecules are linked by O—H...O hydrogen bonds, generating a three-dimensional network and weak C—H...O interactions consolidate the packing.
ISSN:1600-5368