You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [(4R,5S,6aR)-2-oxo-4-phenyl-3,3a,4,5,6,6a-hexahydrocyclopenta[b]furan-5-yl] (2R)-2-phenylpropanoate;molecular hydrogen .
user
C22H24O4
assistant