You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-2-[3-(2-chloro-6-fluorophenyl)-2-methyl-4-oxochromen-7-yl]oxy-N-[(3S)-1,1-dioxothiolan-3-yl]propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H21ClFNO6S
assistant