You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 3-[2-cyclobutyl-3-(9H-fluoren-9-ylmethoxycarbonylamino)propanoyl]-1,3-thiazolidine-4-carboxylic acid is given. What is its corresponding molecular formula?
user
C26H28N2O5S
assistant