You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5S,6R)-6-(4-methoxyphenyl)-5-(4-pyridin-2-ylpiperazine-1-carbonyl)-1-(3,4,5-trimethoxyphenyl)piperidin-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H36N4O6
assistant