You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(7S)-3-[3-[3-[5-[(2-acetyl-2,6-diazaspiro[3.3]heptan-6-yl)methyl]-6-methoxypyrazin-2-yl]-2-fluorophenyl]-2-chlorophenyl]-1-methoxy-6,7-dihydro-5H-cyclopenta[c]pyridin-7-yl]-2,5-diazaspiro[3.4]octan-6-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C40H41ClFN7O4
assistant