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 (2S)-N-[(3S)-1,1-dioxothiolan-3-yl]-2-(2-methyl-4-oxo-3-phenoxychromen-7-yl)oxypropanamide .
user
C23H23NO7S
assistant