You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[(4-hydroxycyclohexanecarbonyl)oxymethyl]-2-[[(1S)-7-oxabicyclo[4.1.0]heptane-3-carbonyl]oxymethyl]butyl] 7-oxabicyclo[4.1.0]heptane-3-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H40O9
assistant