Received 30 May 2011
There are two independent molecules, A and B, in the asymmetric unit of the title compound, C14H15FO3S, in each of which the cyclopentyl ring adopts an envelope conformation. The benzofuran units in each molecule are essentially planar, with mean deviations from the least-squares plane defined by the nine constituent ring atoms of 0.009 (2) Å for molecule A and 0.013 (2) Å for molecule B. In the crystal, molecules are linked by weak C-HO hydrogen bonds. In the cyclopentyl ring of molecule B, one C atom is disordered over two positions with site-occupancy factors of 0.60 (2) and 0.40 (2).
For the pharmacological activity of benzofuran compounds, see: Aslam et al. (2009); Galal et al. (2009); Khan et al. (2005). For natural products with benzofuran rings, see: Akgul & Anil (2003); Soekamto et al. (2003). For a structural study of the related compound 5-bromo-3-cyclopentylsulfinyl-2-methyl-1-benzofuran, see: Seo et al. (2011).
Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: GO2016 ).
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