You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 4-[[4-(5-bromothiophen-2-yl)sulfonylpiperazin-1-yl]methyl]-3-nitrobenzamide using the IUPAC nomenclature.
user
C16H17BrN4O5S2
assistant