Abstract: | In the title compound, C18H16N2O3, the indole ring is planar and the two adjacent carbonyl groups are mutually trans oriented with a torsion angle of 144.8 (3)°. The single C—C bond linking the two carbonyl functionalities is 1.539 (4) Å. Molecules are linked into a two‐dimensional network by intermolecular N—H⋯O hydrogen bonds. |