You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2S)-2-hydroxy-2-methyl-N-[(7S)-6-oxo-5,7-dihydrobenzo[d][1]benzazepin-7-yl]-N'-(2,2,3,3,3-pentafluoropropyl)propanediamide into its molecular formula.
user
C21H18F5N3O4
assistant