You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethenyl 2-[(2-methylpropan-2-yl)oxycarbonylamino]-3,4-dihydro-1H-naphthalene-2-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H23NO4
assistant