Acta Cryst. (2008). E64, o1958-o1959  [ doi:10.1107/S1600536808028614 ]

(1'S)-4-(3,4-Dichlorophenyl)-1'-(3,5-dimethoxyphenyl)-1,2,3,4-tetrahydronaphthalene-2-spiro-2'-pyrrolizidine-3'-spiro-3''-indoline-1,2''-dione

E. T. S. Kamala, R. Murugan, S. Nirmala, L. Sudha and S. S. Narayanan

Abstract: In the title compound C₃₇H₃₂Cl₂N₂O₄, the unsubstituted pyrrolidine ring shows a twist conformation whereas the substituted pyrrolidine ring shows an envelope conformation. The dimethoxy benzene ring is perpendicular to the tetralone ring, making a dihedral angle of 89.94 (5)°. Molecules are linked into centrosymmetric dimers by N-HO hydrogen bonds and the crystal structure is stabilized by C-H interactions and C-HO hydrogen bonds. One methoxy group is disordered over two positions with the site occupancy factors of 0.84 (2) and 0.16 (2).

Online 17 September 2008

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