title: 6-[(2-Chloro-pyridin-5-ylmeth-yl)(eth-yl)-azan-yl]-4-(2-fluoro-phen-yl)-1-methyl-5-nitro-1,2,3,4-tetra-hydro-pyridin-2-one.
abstract: In the title compound, C(20)H(20)ClFN(4)O(3), the tetra-hydro-pyridone ring adopts a skew boat conformation. The dihedral angle between the mean planes of the benzene and pyridine rings is 80.7 (3)°. In the crystal, weak C-H⋯O inter-actions are observed.
authors.affiliation: Department of Chemistry, College of Life and Environmental Science, Shanghai Normal University, Shanghai 200234,  People's Republic of China.
authors.forename: Chuan-Wen
authors.initials: CW
authors.lastname: Sun
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Ying
authors.initials: Y
authors.lastname: Wu