You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
butyl [4-[(2S)-2-[[5-[2-[(2S)-2-(cyclobutylcarbamoyl)pyrrolidin-1-yl]-2-oxoethoxy]-1-phenylpyrazole-3-carbonyl]amino]-3-methylbutanoyl]piperazin-1-yl] carbonate is the IUPAC name of a molecule. Please give its molecular formula.
user
C35H49N7O8
assistant