You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-[[4-(furan-2-ylmethylsulfanyl)-3-oxo-1-phenylbutan-2-yl]amino]-4-methylpentan-2-yl]-3,4-dihydro-1H-isochromene-1-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H38N2O4S
assistant