You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance propan-2-yl 5-carbamoyl-2-[[2-[4-(3,4-dichlorophenyl)piperazin-1-yl]acetyl]amino]-4-methylthiophene-3-carboxylate .
user
C22H26Cl2N4O4S
assistant