You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (4S)-N-(cyclopropylmethyl)-3-(9H-fluorene-2-carbonyl)-1,3-thiazolidine-4-carboxamide is given. What is its corresponding molecular formula?
user
C22H22N2O2S
assistant