You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 4-(2,4-dioxo-1,3-diazaspiro[4.4]nonan-3-yl)-N-[2-(3-fluorophenyl)-2-hydroxyethyl]butanamide .
user
C19H24FN3O4
assistant