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Acta Cryst. (2013). E69, o1047  [ doi:10.1107/S1600536813015341 ]


S. K. Devi, T. Srinivasan, J. N. S. Rao, R. Raghunathan and D. Velmurugan

Abstract: In the title compound, C29H27N3O5, the hydropyran ring adopts an envelope conformation with the methine C atom bearing the para-methoxybenzene ring as the flap. The central pyrrolidine ring has a twist conformation on the N-C bond involving the spiro C atom. The piperidine ring adopts a chair conformation. An intramolecular C-H...O contact closes an S(7) ring. In the crystal, inversion dimers linked by C-H...O interactions generate R22(18) loops and N-H...O hydrogen bonds connect the dimers into [100] chains.

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