Abstract
In the title compound, C37H34ClN3O6, the pyrrolidine and piperidine rings adopt envelope and boat conformations, respectively. The beta-lactam ring is planar and forms dihedral angles of 21.3 (2) and 73.9 (2)degrees, respectively, with the attached methoxyphenyl and phenyl rings. Intramolecular C-H...O and C-H...N hydrogen bonds are observed. Centrosymmetrically related molecules are linked together by weak C-H...O hydrogen bonds to form dimers.