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 (Z)-1-[(2R,5R)-2,5-dimethyl-4-[(E)-3-thiophen-2-ylprop-2-enoyl]piperazin-1-yl]-3-thiophen-2-ylprop-2-en-1-one using the IUPAC nomenclature.
user
C20H22N2O2S2
assistant