You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-[2-[4-[(3-ethyl-2-oxo-1,3-benzoxazol-6-yl)sulfonyl]piperazin-1-yl]-2-oxoethyl]phenyl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H26N4O6S
assistant