You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 4-fluoro-N-[(3S,4R)-3-hydroxy-2,2-dimethyl-6-propanoyl-3,4-dihydrochromen-4-yl]benzamide .
user
C21H22FNO4
assistant