You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (3R,4R)-1-(2,4-dichlorobenzoyl)-N-propan-2-yl-4-[3-(trifluoromethyl)phenyl]pyrrolidine-3-carboxamide is given. What is its corresponding molecular formula?
user
C22H21Cl2F3N2O2
assistant