You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named tert-butyl N-[(Z)-3-fluoro-2-[[2-(3-methylpyrrolidin-1-yl)-1,3-benzoxazol-6-yl]oxymethyl]prop-2-enyl]carbamate by IUPAC nomenclature, provide its molecular formula.
user
C21H28FN3O4
assistant