You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 5-[4-[4-[(1,3-dioxo-3a,4,5,6,7,7a-hexahydro-2-benzofuran-5-yl)oxy]cyclohexyl]oxycyclohexyl]oxy-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione .
user
C28H38O9
assistant