Crystal structure of 7'-(4-chloro-phen-yl)-2''-(4-meth-oxy-phen-yl)-7',7a',7'',8''-tetra-hydro-1',3',5''-di-spiro-[indoline-3,5'-pyrrolo-[1,2-]thia-zole-6',6''-quinoline]-2,5''-dione and an unknown solvent.

The asymmetric unit of the title compound, CHClNOS, contains two independent mol-ecules ( and ). They differ essentially in the orientation of the 4-meth-oxy-phenyl ring with respect to the pyridine ring of the quinoline moiety; this dihedral angle is 37.01 (18)° in mol-ecule but only 7.06 (17)° in mol-ecule . In both mol-ecules, the cyclo-hexa-none ring of the iso-quinoline unit has a half-chair conformation. In the pyrrolo-thia-zole ring system, the pyrrolo ring in mol-ecule has a twisted conformation on the N-C fused bond and an envelope conformation in mol-ecule with the N atom as the flap. The thia-zole rings of both mol-ecules have twisted conformations on the N-C fused bond. In the crystal, the mol-ecules are linked by pairs of N-H⋯O hydrogen bonds, forming inversion dimers with an (8) ring motif. These dimers are linked to the mol-ecules by an N-H⋯N hydrogen bond and a series of C-H⋯O hydrogen bonds, forming layers lying parallel to the (101) plane. The layers are linked by C-H⋯π inter-actions and offset π-π inter-actions [inter-centroid distance = 3.427 (1) Å], forming a supra-molecular framework. The contribution to the scattering from a region of highly disordered solvent mol-ecules was removed with the SQUEEZE routine in [Spek (2015 ▸). Acta Cryst. C71, 9-18]. The solvent formula mass and unit-cell characteristics were not taken into account during refinement.