Acta Cryst. (2003). E59, o1458-o1460  [ doi:10.1107/S1600536803019226 ]

Spiro-[2-3']oxindole-spiro-[3-3'']oxindole-4[p-methylbenzyl]pyrrolidizine

P. R. Seshadri, S. Selvanayagam, D. Velmurugan, K. Ravikumar, A. R. Sureshbabu and R. Raghunathan

Abstract: The oxindole moieties of the title compound, C₂₉H₂₅N₃O₃, are planar. The pyrrolidine ring adopts a half-chair conformation. The structure is stabilized by C-HO intramolecular interactions. It is remarkable that only one of the two NH groups forms a hydrogen bond.

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