You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named methyl (2S)-2-[[(2S)-2-[(2S)-2,3-dihydro-1-benzofuran-2-yl]-4-(4-methoxy-1H-indol-2-yl)-4-oxobutanoyl]amino]-3-[(3S)-2-oxopyrrolidin-3-yl]propanoate by IUPAC nomenclature, provide its molecular formula.
user
C29H31N3O7
assistant