title: (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.
abstract: In the title compound C(37)H(32)Cl(2)N(2)O(4), the unsubstituted pyrrolidine ring shows a twist conformation whereas the substituted pyrrolidine ring shows an envelope conformation. The dimeth-oxy benzene ring is perpendicular to the tetra-lone ring, making a dihedral angle of 89.94 (5)°. Mol-ecules are linked into centrosymmetric dimers by N-H⋯O hydrogen bonds and the crystal structure is stabilized by C-H⋯π inter-actions and C-H⋯O hydrogen bonds. One meth-oxy group is disordered over two positions with the site occupancy factors of 0.84 (2) and 0.16 (2).
authors.forename: E Theboral Sugi
authors.initials: ET
authors.lastname: Kamala
authors.forename: R
authors.initials: R
authors.lastname: Murugan
authors.forename: S
authors.initials: S
authors.lastname: Nirmala
authors.forename: L
authors.initials: L
authors.lastname: Sudha
authors.forename: S Sriman
authors.initials: SS
authors.lastname: Narayanan