You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[5-bromo-7-[(3S)-3-[4-(2-chlorophenyl)piperazine-1-carbonyl]piperidin-1-yl]sulfonyl-2,3-dihydroindol-1-yl]propan-1-one into molecular formula.
user
C27H32BrClN4O4S
assistant