You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2S)-1-oxo-1-[[(1R)-1,2,3,4-tetrahydronaphthalen-1-yl]amino]propan-2-yl] 2-(4-cyanophenoxy)acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H22N2O4
assistant