You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[1-[2-(4-propan-2-ylphenoxy)acetyl]azetidin-3-yl]-1,3-thiazolidine-2,4-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H20N2O4S
assistant