You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(3S)-1-[[5-[2-chloro-3-[2-chloro-3-[6-methoxy-5-[3-[(2S)-5-oxopyrrolidin-2-yl]propyl]pyrazin-2-yl]phenyl]phenyl]-3-methoxypyrazin-2-yl]methyl]pyrrolidin-3-yl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C36H39Cl2N7O4
assistant