You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-amino-2-[[4-amino-2-[[1-(2-amino-3-hydroxybutanoyl)pyrrolidine-2-carbonyl]amino]-4-oxobutanoyl]amino]-4-oxobutanoic acid into molecular formula.
user
C17H28N6O8
assistant