You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule methyl (3S)-3-[3-hydroxy-6-[[4-(4-methoxyphenyl)piperazin-1-yl]methyl]-4-oxopyran-2-yl]-3-(7-methyl-2-oxo-1H-quinolin-3-yl)propanoate ?
user
C31H33N3O7
assistant