You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2R)-N-cyclopentyl-2-[(4-fluorophenyl)methyl-[2-[(4-fluorophenyl)methylsulfanyl]acetyl]amino]propanamide by IUPAC nomenclature, provide its molecular formula.
user
C24H28F2N2O2S
assistant