You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[(1R)-2-azido-1-[6-bromo-1-(4-methylphenyl)sulfonylindol-3-yl]ethyl]-2-(6-bromo-1H-indol-3-yl)-2-oxoacetamide .
user
C27H20Br2N6O4S
assistant