You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3-pyridin-3-yloxy-8-azabicyclo[3.2.1]octan-8-yl)-(2,4,5-trifluoro-3-methoxyphenyl)methanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H19F3N2O3
assistant