You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(3S)-1-(4-fluorobenzoyl)-2-oxoazepan-3-yl]sulfanyl-3-(furan-2-ylmethyl)quinazolin-4-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H22FN3O4S
assistant