You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 4-[(1S,2R,3R,4S)-2,3-diacetyl-4-(4-carboxyphenyl)cyclobutyl]benzoic acid is given. What is its corresponding molecular formula?
user
C22H20O6
assistant