You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl (2S)-4-methylsulfanyl-2-[[2-[[(2S)-2-[(2S)-5-oxopyrrolidine-2-carbonyl]pyrrolidin-2-yl]methoxy]-3-phenylpropanoyl]amino]butanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H35N3O6S
assistant