1 Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, People's Republic of China.
In the title compound, C(28)H(33)NO(4)·CH(2)Cl(2), the pyrrolidone ring adopts a twisted envelope conformation and the cyclo-hexene has a half-chair conformation. In the crystal, weak C-H⋯O hydrogen bonds link the components into chains along [100].