You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(4-oxothieno[3,2-d]pyrimidin-3-yl)-N-(2-prop-2-enylsulfanylphenyl)acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H15N3O2S2
assistant