You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S)-3-amino-4-[(2S,5S,8S,11S,14S,17S,20S)-11-(4-aminobutyl)-2-(3-aminopropyl)-5-benzyl-17-(carboxymethyl)-14-[(4-hydroxyphenyl)methyl]-8-(1H-indol-3-ylmethyl)-3,6,9,12,15,18,21-heptaoxo-20-propan-2-yl-1,4,7,10,13,16,19-heptazacyclohenicos-1-yl]-4-oxobutanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C53H69N11O13
assistant