Received 25 May 2010
The title compound, C34H32O6S, is an ido-configured thioglycoside building block for heparan sulfate fragments. It contains disordered tolyl and O-benzyl groups with occupancy ratios of 0.539 (13):0.461 (13) and 0.613 (13):0.387 (13), respectively, as determined from a weakly diffracting crystal. The fused rings adopt chair conformations with the molecules packing into a three-dimensional network via C-HO and three C-H interactions. The former interactions, occuring between molecules related by a twofold axis, define an R22(26) motif.
For the synthesis, see: Barroca & Jacquinet (2000); Polat & Wong (2007). For a related structure, see: Zhou et al. (2006). For ring conformations, see: Cremer & Pople (1975) and for hydrogen-bond motifs, see: Bernstein et al. (1995).
Data collection: CrystalClear (Rigaku, 2005); cell refinement: FSProcess (Rigaku, 1998); data reduction: FSProcess; program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP in WinGX (Farrugia, 1999) and Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: GK2277 ).
We thank the MacDiarmid Institute for Advanced Materials and Nanotechnology for funding of the diffractometer equipment and Dr Shane Telfer (Massey University, Palmerston North) for his assistance. This work was supported by the New Zealand Foundation for Research, Science & Technology, project C08X0601, `New Synthesis Methods'.
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