You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
benzhydryl (6R)-3-(iodomethyl)-7-[(2-methylpropan-2-yl)oxycarbonylamino]-5,8-dioxo-5lambda4-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H27IN2O6S
assistant