You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,4R)-N-[1-[(2-chlorophenyl)methyl]-6,7-dimethoxy-2-oxo-3,4-dihydroquinolin-3-yl]-4-hydroxy-1-(1-methylindole-3-carbonyl)pyrrolidine-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C33H33ClN4O6
assistant