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In the title compound, C20H26ClNO4, the central cyclohexene ring adopts an approximate envelope conformation with the C atom binding with the hydroxy group at the tip of the flap. There is an intramolecular N—H...O hydrogen bond generating an S(6) ring motif. In the crystal, classical O—H...O hydrogen bonds and weak C—H...O and C—H...Cl interactions link the molecules, forming a three-dimensional supramolecular architecture. The crystal structure was refined as a four-component twin.