Acta Cryst. (2005). E61, o2086-o2088  [ doi:10.1107/S1600536805017939 ]

10''-(4-Methoxybenzylidene)-5'',4'-bis(4-methoxyphenyl)-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

H.-L. Chen, Y.-Q. Feng, X.-F. Hu and X.-G. Liu

Abstract: The title compound, C₄₄H₄₂N₄O₅S, was synthesized by the intermolecular [3+2] cycloaddition of an azomethine ylide, derived from isatin and sarcosine by a decarboxylative route, and 5-(4-methoxyphenyl-10-(4-methoxy)benzylidene-2-(4-methoxy)benzylidene-2,3,6,7,8,9-hexahydro-5H,10H-cyclohepta[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)hexahydrocyclohepta[1,2-d]thiazolo[3,2-a]pyrimidin-3-one ring. The packing of the molecules in the crystal structure is mainly governed by N-HN hydrogen bonds.

Online 17 June 2005

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