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 1-[(E)-3-(5-chlorothiophen-2-yl)prop-2-enyl]-4-[[4-(6-oxo-1H-pyridin-3-yl)phenyl]methyl]piperazine-2,3-dione ?
user
C23H20ClN3O3S
assistant