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 1-[2-[[6-amino-2-[(2,4-diamino-4-oxobutanoyl)amino]hexanoyl]amino]-3-methylpentanoyl]pyrrolidine-2-carboxylic acid using the IUPAC nomenclature.
user
C21H38N6O6
assistant