You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[[5-(4-methylphenyl)furan-2-yl]methylidene]-2-piperidin-1-yl-1,3-thiazol-4-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H20N2O2S
assistant