You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
benzyl N-[(1R,2S)-2-[4-methoxy-1-(4-methylphenyl)sulfonylindol-3-yl]cyclopropyl]carbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H26N2O5S
assistant