N-[(3-Ethyl­phen­yl)carbamo­thio­yl]-2,2-di­phenyl­acetamide

In the title mol­ecule, C₂₃H₂₂N₂OS, the di­phenyl­acetyl and ethyl­benzene groups adopt a trans–cis conformation, respectively, with respect to the S atom across the (S=)C—N bonds. This conformation is stabilized by an intra­molecular N—H...O hydrogen bond and a weak C—H...S hydrogen bond. The ethyl-substituted benzene ring forms dihedral angles of 87.53 (15) and 73.94 (15)° with the phenyl rings. In the crystal, N—H...O hydrogen bonds link mol­ecules into chains along [100]. A weak C—H...π inter­action is also observed.