Acta Cryst. (2002). E58, o802-o804  [ doi:10.1107/S1600536802010863 ]

Indole-3-spiro-N-methyl-2'-pyrrolidine-3'-spiro-9''-anthracene-2,10''-dione

A. Abdul Ajees, S. Manikandan and R. Raghunathan

Abstract: The asymmetric unit of the title compound, C₂₅H₂₀N₂O₂, contains an enantiomeric pair of molecules, which are linked by N-HO hydrogen bonds involving N-H and C=O groups of the pyrrole ring. In both molecules, the central six-membered ring of the anthrone moiety adopts a boat conformation, the pyrrolidine ring adopts an envelope conformation and the five-membered ring in the oxindole moiety is slightly distorted from planarity. Both the anthrone and oxindole moieties are almost perpendicular to the pyrrolidine ring.

Online 5 July 2002

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