You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[2-[4-(2-cyclopentylacetyl)piperazin-1-yl]-2-oxoethyl]-3-(dimethylsulfamoyl)benzamide into molecular formula.
user
C22H32N4O5S
assistant