You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(6-ethoxy-2-oxo-1H-quinolin-3-yl)methyl]-1-[[(2R)-1-ethylpyrrolidin-2-yl]methyl]-3-(2-methoxyphenyl)urea The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H34N4O4
assistant