You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (2R)-N-tert-butyl-2-[(4-fluorophenyl)methyl-[2-[(4-fluorophenyl)methylsulfanyl]acetyl]amino]propanamide is given. What is its corresponding molecular formula?
user
C23H28F2N2O2S
assistant