You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3R)-3-(2-oxohex-5-enyl)-1-(2-oxopropyl)azepan-2-one;(2R)-2-(2-oxohex-5-enyl)-5-(2-oxopropyl)cyclopentan-1-one;(3R)-3-(2-oxohex-5-enyl)-1-(2-oxopropyl)piperidin-2-one by IUPAC nomenclature, provide its molecular formula.
user
C43H64N2O9
assistant