5‐(3,4‐Dimethylphenylsulfonyl)‐8‐methoxy‐2‐methyl‐2,3,5,6‐tetrahydro‐4H‐2,6‐methano‐1,3‐benzoxazocin‐4‐one

Mol­ecules of the title mol­ecule, C21H23NO5S, form centrosymmetric dimers via inter­molecular N—H⋯O bonds. In addition, there are inter­molecular C—H⋯O bonds. The eight-membered ring and both six-membered rings belonging to the tricycic ring system adopt a conformation which is intermediate between a sofa and a half-chair.