(4S,5R)-4-Benz­yloxy-5-[4-(cyclo­hexa­ne­carbon­yl)phen­yl]-1-(4-meth­oxy­benz­yl)pyrrolidin-2-one

The title compound, C₃₂H₃₅NO₄, is an unexpected product obtained in the SmI₂-mediated radical cross-coupling of a lactam 2-pyridyl sulfone with an arone. The asymmetric unit contains two mol­ecules. In both mol­ecules, the core pyrrolidinone ring adopts an approximate envelope conformation (with the C atom bearling the benzyloxy substituent as the flap) and the cyclo­hexyl ring has a chair conformation. The relative orientation of the two substitutent groups at the 4- and 5-positions of the pyrrolidinone ring is anti in both mol­ecules, with O(benz­yloxy)—C—C—C(benzene) torsion angles of 150.8 (3) and 154.2 (2)°. In the crystal, C—H...O inter­actions involving carbonyl groups as acceptors lead to the formation of a tape motif propagating parallel to the a-axis direction.