You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3S,3aR,6R,8aR)-3-(3,4-dimethoxyphenyl)-2,6-dimethyl-3a,4,8,8a-tetrahydro-3H-[1,3]dioxepino[5,6-d][1,2]oxazole into its molecular formula.
user
C16H23NO5
assistant