You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule methyl 2-methyl-6-nitro-3-[2-[(4-phenylpiperidin-1-yl)methyl]-1-(pyridine-2-carbonylamino)butyl]cyclohexa-1,5-diene-1-carboxylate;hydrochloride ?
user
C31H39ClN4O5
assistant