Acta Cryst. (2003). E59, o1810-o1811  [ doi:10.1107/S1600536803023687 ]

1'-Methyl-4'-(2,4-dichlorophenyl)-1H-indole-3-spiro-2'-pyrrolidine-3'-spiro-5''-(thiazolo[3,2-b][1,2,4]triazole)-2,6''(3H,5''H)-dione

X.-F. Li, Y.-Q. Feng, G.-Y. Yao and X.-D. You

Abstract: The title compound, C₂₁H₁₅Cl₂N₅O₂S, was synthesized by the intermolecular [3  +  2]-cycloaddition of the azomethine ylide derived from isatin and sarcosine by a decarboxylative route and 5-(2,4-dichlorobenzylidene)thiazolo[3,2-b][1,2,4]triazol-6-one. In the molecule, the two spiro junctions link a planar 2-oxindole ring, a pyrrolidine ring in an envelope conformation and a thiazolo[3,2-b][1,2,4]triazol-6-one ring. The 2,4-dichlorophenyl group is disordered. Molecules are connected into chains by intermolecular N-HN hydrogen bonds and weak C-HO interactions.

Online 23 October 2003

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