Acta Cryst. (2005). E61, o1411-o1413  [ doi:10.1107/S1600536805011621 ]

10''-(4-Chlorobenzylidene)-5''-(4-chlorophenyl)-4'-(2,4-dichlorophenyl)-1'-methyl-2,3,2'',3'',7'',8'',9'',10''-octahydro-1H,5''H,6''H-indole-3-spiro-2'-pyrrolidine-3'-spiro-2''-cyclohepteno[1,2-d]thiazolo[3,2-a]pyrimidine-2,3''-dione

X.-F. Hu, Y.-Q. Feng, X.-G. Liu and K.-J. Qiao

Abstract: The title compound, C₄₁H₃₂Cl₄N₄O₂S, was synthesized by the intermolecular [3 + 2] cycloaddition of azomethine ylide, derived from isatin and sarcosine by a decarboxylative route, and 5-(4-chloro)phenyl-10-(4-chloro)benzylidene-2-(2,4-dichloro)benzylidene-2,3,6,7,8,9-hexahydro-5H,10H-cyclohepteno[1,2-d]thiazolo[3,2-a]pyrimidin-3-one. In the molecule, the two spiro junctions link a planar 2-oxindole ring, a pyrrolidine ring in an envelope conformation and a 10-(arylmethylene)hexahydrocyclohepteno[1,2-d]thiazolo[3,2-a]pyrimidin-3-one ring. The packing of the molecules in the crystal structure is mainly due to N-HO hydrogen bonds.

Online 23 April 2005

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