You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named benzyl N-[6-[(1-amino-1-oxo-3-phenylpropan-2-yl)amino]-5-[[2-[[5-[bis(phenylmethoxycarbonylamino)methylideneamino]-2-(phenylmethoxycarbonylamino)pentanoyl]amino]-3-(2,6-dimethyl-4-phenylmethoxyphenyl)propanoyl]amino]-6-oxohexyl]carbamate by IUPAC nomenclature, provide its molecular formula.
user
C71H79N9O13
assistant