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 identified by [1-[(3-carbamoylthiophen-2-yl)amino]-1-oxopropan-2-yl] 4-(3-methylpiperidin-1-yl)-3-nitrobenzoate ?
user
C21H24N4O6S
assistant