You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[4-[(4-fluoro-6-methyl-7H-cyclopenta[b]pyridin-3-yl)oxy]-6-methoxyquinolin-7-yl]oxy-1-(2-oxa-6-azaspiro[3.3]heptan-6-yl)butan-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H28FN3O5
assistant