International Union of Crystallography, Acta Crystallographica Section E: Structure Reports Online, 1(66), p. o184-o184, 2009
DOI: 10.1107/s1600536809053264
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In the crystal structure of the title compound, C(21)H(32)O(2), ring A is highly distorted, with a conformation inter-mediate between 10β-sofa and 1α,10β-half chair; rings B and C have slightly flattened chair conformations. Ring D assumes an unusual 13β-envelope conformation, probably induced by the acet-oxy substituent. Cohesion of the crystal structure is due only to weak van der Waals inter-actions.