You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl N-[(2S)-1-[(3S)-3-[(4-chlorophenyl)methyl]-4-[[(1R,2S)-2-ethenyl-1-[(3-phenylmethoxyphenyl)sulfonylcarbamoyl]cyclopropyl]carbamoyl]pyrrolidin-1-yl]-3-methyl-1-oxobutan-2-yl]carbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C41H49ClN4O8S
assistant