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-acetylphenyl)piperazin-1-yl]-2-[2-[(4-methylpyridin-2-yl)amino]-1,3-thiazol-4-yl]ethanone .
user
C23H25N5O2S
assistant