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 1-[4-(4-methoxyphenyl)piperazin-1-yl]-2-[[(R)-phenyl(thiophen-2-yl)methyl]amino]ethanone .
user
C24H27N3O2S
assistant