You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-[2-[4-[1-(1-carboxypiperidin-4-yl)piperidin-2-yl]-2-(dimethylcarbamoyl)-5-ethoxycarbonyl-1-(4-methoxyphenyl)pyrrol-3-yl]piperidin-1-yl]piperidine-1-carboxylic acid .
user
C39H56N6O8
assistant