1′-Acetyl-3-phenyl-6-oxa-4-thia-2-aza­spiro­[bicyclo­[3.2.0]hept-2-ene-7,3′-indolin]-2′-one

In the title indoline compound, C(19)H(14)N(2)O(3)S, the pyrrolidine ring adopts an envelope conformation with the four-connected (spiro) C atom as the flap [displacement = 0.148 (3) Å]. The mean plane formed through the indoline unit is inclined at dihedral angles of 89.92 (16) and 59.54 (12)° with the thia­zole and phenyl rings, respectively; the dihedral angle between the latter rings is 9.55 (14)°. In the crystal, pairs of inter­molecular C—H⋯O hydrogen bonds link neighbouring mol­ecules into inversion dimers, producing R (2) (2)(6) hydrogen-bond ring motifs. Weak inter­molecular C—H⋯π as well as π–π inter­actions [centroid–centroid distance = 3.4041 (15) Å] further consolidate the crystal structure.