You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[3-[(4aR,8aS)-3,4,4a,5,6,7,8,8a-octahydro-1H-isoquinolin-2-yl]-3-oxopropyl]-1,3-benzoxazol-2-one into molecular formula.
user
C19H24N2O3
assistant