You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-amino-1-[[1-[[2-[[1-[(2-amino-2-oxoethyl)amino]-4-methyl-1-oxopentan-2-yl]amino]-2-oxoethyl]-methylamino]-5-(methylamino)-1,5-dioxopentan-2-yl]amino]-1,4-dioxobutan-2-yl]-2-[[2-[[3-(4-aminophenyl)-2-formamidopropanoyl]amino]-3-methylpentanoyl]amino]pentanediamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C42H67N13O12
assistant