You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [2-acetyloxy-4-[1-[2-(3,4-diacetyloxyphenyl)-2-oxoethyl]-6-(hydroxymethyl)indol-3-yl]phenyl] acetate into molecular formula.
user
C31H27NO10
assistant