You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5S)-5-[[[(7R)-3-[3-[3-[5-[(2-acetyl-2,6-diazaspiro[3.3]heptan-6-yl)methyl]-6-methoxy-4-methylpyridin-2-yl]-2-chlorophenyl]-2-chlorophenyl]-1-methoxy-6,7-dihydro-5H-cyclopenta[c]pyridin-7-yl]amino]methyl]pyrrolidin-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C41H44Cl2N6O4
assistant