You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-(4-amino-2-methylquinolin-5-yl)oxy-2-methylpropan-2-yl]-2-(4-methylphenyl)acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H27N3O2
assistant