You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(2-aminoethyl)-N-[(2R)-butan-2-yl]-3,3-dimethyl-2-oxo-N-propan-2-yl-4H-quinoline-7-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H33N3O2
assistant