You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-[[(2S)-2-[[(2S)-2-acetamidopropanoyl]-methylamino]propanoyl]amino]-N-[(2S)-4-[[(1R)-1-[1-benzyl-4-(2,5-difluorophenyl)pyrrol-2-yl]-2,2-dimethylpropyl]-(2-hydroxyacetyl)amino]-1-[[5-(2,5-dioxopyrrol-1-yl)-4-oxopentyl]amino]-1-oxobutan-2-yl]butanediamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C50H63F2N9O11
assistant