You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
benzhydryl (2S,3R,6Z)-3-[(2-chloroacetyl)oxymethyl]-3-methyl-7-oxo-6-(pyridin-2-ylmethylidene)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H25ClN2O5S
assistant