You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,3S)-3-[[5-fluoro-2-(1H-pyrrolo[2,3-b]pyridin-3-yl)pyrimidin-4-yl]amino]bicyclo[2.2.2]octane-2-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H20FN5O2
assistant