Received 11 February 2013
aDepartment of Physics, Presidency College, Chennai 600 005, India,bDepartment of Computer Science & Engineering, Madha Engineering College, Kundrathur, Chennai 600 069, India, and cDepartment of Organic Chemistry, University of Madras, Chennai 600 025, India
Correspondence e-mail: firstname.lastname@example.org
In the title compound, C22H24N2O6, the indole ring has a twist conformation and the tetrahydro-2H-pyran-2-one ring a half-chair conformation. One of the pyrrolidine rings adopts an envelope conformation on the N atom, while the other has a twist conformation; the `butterfly' angle between their mean planes is 62.98 (11)°. The dioxolane ring adopts a twist conformation and the tetrahydrofuran ring has an envelope conformation on the C atom in the fused tetrahydro-2H-pyran-2-one ring adjacent to the O atom of the tetrahydrofuran ring. The `butterfly' angle between the mean planes of these two five-membered rings is 69.14 (10)°. In the crystal, molecules are linked by N-HO hydrogen bonds, forming chains along the a axis.
Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); 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 for Windows (Farrugia, 2012); 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: SU2563 ).
SA and VS thank the UGC, India, for financial support. The authors thank Dr Babu Varghese, Senior Scientific Officer, SAIF, IIT, Chennai, India, for the X-ray intensity data collection.
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