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 (5-tert-butyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-(4-ethylsulfonylpiperazin-1-yl)methanone .
user
C19H30N2O3S2
assistant