You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[4-[2-(dimethylamino)ethoxycarbonyl]-2-[2,2-dimethyl-3-oxo-3-[2-(2-oxopyrrolidin-1-yl)ethoxy]propyl]-4-methylhexanoyl]amino]-2-methylpropane-1-sulfonic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H49N3O9S
assistant