You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1S,3aR,4S,7aS)-4-(3-formyloxypropyl)-2-[(2-methylpropan-2-yl)oxycarbonyl]-3,6-dioxo-1,3a,4,5,7,7a-hexahydroisoindole-1-carboxylic acid into its molecular formula.
user
C18H25NO8
assistant