You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,4aR,8aS)-1-(2-ethoxyphenyl)-2-[(E)-3-phenylprop-2-enyl]-1,3,4,5,6,7,8,8a-octahydroisoquinolin-4a-ol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H33NO2
assistant