You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R,6R)-2-hydroxy-2-[(4R)-2-oxo-1,3-thiazolidin-4-yl]-6-(2-phenylethyl)oxan-4-yl] benzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H25NO5S
assistant