Diethyl 2-{[3-(2,4,6-trimethyl­benz­yl)-1-phenyl­sulfonyl-1H-indol-2-yl]methyl­idene}propane­dioate

In the title compound, C₃₂H₃₃NO₆S, the indole ring system makes dihedral angles of 62.78 (10) and 80.53 (8)°, respectively, with the phenyl and benzene rings. In the crystal, the mol­ecules are linked through inter­molecular C—H...O hydrogen bonds, forming a chain along the a axis. Between the chains, a weak aromatic π–π stacking inter­action [centroid–centroid distance = 3.831 (2) Å] is observed.