title: 7'-(2,5-Dimeth-oxy-phen-yl)-1',3',5',6',7',7a'-hexa-hydro-dispiro-[indan-2,5'-pyrrolo-[1,2-c][1,3]thia-zole-6',2''-indan]-1,3,1''-trione.
abstract: In the title compound, C(30)H(25)NO(5)S, all the five-membered rings are in envelope conformations with the spiro and methylene C atoms as the flap atoms. Intra-molecular C-H⋯O inter-actions stabilize the mol-ecular structure and form S(6) and S(7) ring motifs. The mean plane through the hexa-hydro-pyrrolo-[1,2-c]thia-zole ring [r.m.s deviation of 0.0393 (1) Å] makes dihedral angles of 60.92 (5), 88.33 (4) and 84.12 (4)° with the terminal benzene ring and the mean planes of the mono and di-oxo substituted indan rings, respectively. Mol-ecules are linked by inter-molecular C-H⋯O inter-actions into a three-dimensional network. In addition, C-H⋯π and π-π inter-actions [centroid-to-centroid distance = 3.4084 (8) Å] further stabilize the crystal structure.
authors.forename: Ang Chee
authors.initials: AC
authors.lastname: Wei
authors.forename: Mohamed Ashraf
authors.initials: MA
authors.lastname: Ali
authors.forename: Tan Soo
authors.initials: TS
authors.lastname: Choon
authors.forename: Ibrahim Abdul
authors.initials: IA
authors.lastname: Razak
authors.forename: Suhana
authors.initials: S
authors.lastname: Arshad