You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-[(2,4-difluorophenyl)methyl]-3-hydroxy-8-azabicyclo[3.2.1]octan-8-yl]-(furan-3-yl)methanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H19F2NO3
assistant