You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[(2-amino-4-methylsulfanylbutanoyl)amino]-4-[2-[[1-carboxy-2-(1H-indol-3-yl)ethyl]carbamoyl]pyrrolidin-1-yl]-4-oxobutanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H33N5O7S
assistant