Crystal structure of (tert-butyl­carbamo­yl)(4-chloro-2-oxo-2H-chromen-3-yl)methyl acetate

In the title compound, C(17)H(18)ClNO(5), which was synthesized by reacting 4-chloro-3-formyl­coumarin, acetic acid and tert-butyl isocyanide, the acetamido side chain is convoluted with ring-to-side chain C—C—C—C, C—C—C—N and C—C—N—C torsion angles of −123.30 (14), −135.73 (12) and 176.10 (12)°, respectively. In the crystal, N—H⋯O and weak C—H⋯O hydrogen bonds are present, which together with π–π coumarin-ring inter­actions [ring centroid separations = 3.4582 (8) and 3.6421 (9) Å], give rise to a layered structure lying parallel to (001).