You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance [2-oxo-2-[2-(4-sulfamoylphenyl)ethylamino]ethyl] (2S)-2-[(3aR,7aR)-1,3-dioxo-3a,4,5,6,7,7a-hexahydroisoindol-2-yl]propanoate .
user
C21H27N3O7S
assistant