You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (3R)-3-[4-[[4-bromo-2-(trifluoromethyl)phenyl]sulfonylamino]piperidine-1-carbonyl]pyrrolidine-1-carboxylic acid is given. What is its corresponding molecular formula?
user
C18H21BrF3N3O5S
assistant