ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, cilt.71, 2015 (ESCI)
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 center dot center dot center dot O hydrogen bond generating an S(6) ring motif. In the crystal, classical O-H center dot center dot center dot O hydrogen bonds and weak C-H center dot center dot center dot O and C-H center dot center dot center dot Cl interactions link the molecules, forming a three-dimensional supramolecular architecture. The crystal structure was refined as a four-component twin.