You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 2-[[2-[2-[(2,4-diamino-4-oxobutanoyl)amino]propanoylamino]-4-methylsulfanylbutanoyl]amino]-3-(1H-imidazol-5-yl)propanoic acid using the IUPAC nomenclature.
user
C18H29N7O6S
assistant