You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-(4-fluoro-7-oxo-6,8-dihydro-5H-1,8-naphthyridin-2-yl)ethyl 5-hydroxy-1a,6b-dihydro-1H-cyclopropa[b][1]benzofuran-1-carboxylate .
user
C20H17FN2O5
assistant