You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R)-1-(6-fluoro-3,4,8,8a-tetrahydro-2H-chromen-2-yl)-2-[[(2S)-2-(6-fluoro-3,4-dihydro-2H-chromen-2-yl)-2-hydroxyethyl]amino]ethanol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H27F2NO4
assistant