Acta Cryst. (2003). E59, o1420-o1422  [ doi:10.1107/S1600536803018804 ]

4'-(4-Chlorophenyl)-3''-ethyl-1'-methyl-1H-indole-3-spiro-2'-pyrrolidine-3'-spiro-5''-[1,3]thiazole-2(3H),2''(3''H),4''(5''H)-trione benzene sesquisolvate

X.-F. Li, Y.-Q. Feng, D.-X. Shi and H.-L. Chen

Abstract: The title compound, C₂₂H₂₀ClN₃O₃S·1.5C₆H₆, was synthesized by the intermolecular [3  +  2]-cycloaddition of azomethine ylide, derived from isatin and sarcosine by a decarboxylative route, and 5-(4-chlorobenzylidene)-3-ethylthiazolidine-2,4-dione. In the molecule of the title compound, an approximately planar 2-oxindole system, a pyrrolidine ring in an envelope conformation, and a planar thiazolidine ring are joined via two spiro-junctions. The molecules in the crystal are linked by an intermolecular N-HN hydrogen bond [NN = 3.071  (3)  Å], forming infinite chains running along the c axis. One of the solvate benzene molecules occupies a special position on an inversion centre.

Online 30 August 2003

Copyright © International Union of Crystallography
IUCr Webmaster