You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-(6-methoxyisoquinolin-3-yl)spiro[1,2-oxazolidine-5,3'-1-azabicyclo[2.2.2]octane]-3-imine ?
user
C19H22N4O2
assistant