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 3-[4-(5-chloro-2-methylphenyl)piperazine-1-carbonyl]-6,7,8,9-tetrahydropyrimido[2,1-b][1,3]benzothiazol-4-one .
user
C22H23ClN4O2S
assistant