You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(1,3-benzodioxol-2-yl)-2-[5-(hydroxymethyl)-1-methylindol-3-yl]-N-(2-methoxy-4-methylphenyl)sulfonylacetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H26N2O7S
assistant