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The structure of the title compound, 3α,4α-epoxy-5α-androstan-17-one, C19H28O2, shows evidence of the strain caused by the presence of an epoxy O atom bonded to C3 and C4 in the molecule. Ring A has a sizeable distortion and assumes a conformation intermediate between 10-β-sofa and 1,10-half chair. Ring D has a 14-α-envelope conformation. Cohesion of the crystal is due only to van der Waals interactions and weak intermolecular C—H...O interactions.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablock and4

hkl

Structure factor file (CIF format)
Supplementary material

CCDC reference: 128529

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