You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[(2R)-2-methylpiperidin-1-yl]-2-oxoethyl] 2-[(4-oxo-2,3-dihydro-1H-cyclopenta[c]chromen-7-yl)oxy]acetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H25NO6
assistant