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 4-[[4-(4-bromo-2-fluoroanilino)-6-(trihydroxymethoxy)quinazolin-7-yl]oxymethyl]-1-methylpiperidine-2,2,6,6-tetrol .
user
C22H24BrFN4O9
assistant