You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 5-[(3-chlorophenyl)methyl]-3,6-dimethyl-2-(1-oxo-1-pyrrolidin-1-ylpropan-2-yl)sulfanylpyrimidin-4-one .
user
C20H24ClN3O2S
assistant