You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4aS,8aR)-6-[(4-methylphenyl)methyl]-1-[(3,4,5-trimethoxyphenyl)methyl]-4,4a,5,7,8,8a-hexahydro-3H-1,6-naphthyridin-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H34N2O4
assistant