You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-[[2-[[2-[[2-[(2-acetamido-4-methylpentanoyl)amino]-5-(diaminomethylideneamino)pentanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]but-2-enoylamino]-3-(1H-indol-3-yl)propanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C43H60N10O8
assistant