You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-2-[[1-[(4-methoxyphenyl)methyl]-2-oxo-5,6,7,8,9,10-hexahydrocycloocta[b]pyridine-3-carbonyl]amino]-2-phenylacetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H30N2O5
assistant