You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl 2-[(4S)-6-chloro-1-methyl-8-(3-methyl-1,2,4-oxadiazol-5-yl)-4H-[1,2]oxazolo[5,4-d][2]benzazepin-4-yl]acetate;2-[(4S)-6-(4-chlorophenyl)-1-methyl-8-(3-methyl-1,2,4-oxadiazol-5-yl)-4H-[1,2]oxazolo[5,4-d][2]benzazepin-4-yl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C44H39Cl2N9O7
assistant