organic compounds
In the title compound, C17H20BrNO3, synthesized from spiro[2H-1,3-benzoxazine-2,1′-cyclohexan]-4(3H)-one and 2-bromobutanoyl bromide, the chair cyclohexane ring in the molecule shows high asymmetric induction in the synthesis of trans β-lactams.
organic compounds
In the title compound, C20H21NO3, the dihedral angle between the two benzene rings is 8.79 (7)° and the cyclohexane ring adopts a chair conformation. The molecules are linked by paired N—HO hydrogen bonds into centrosymmetric R22(8) dimers.