You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(3-benzyl-4-oxothieno[3,2-d]pyrimidin-2-yl)sulfanyl-N-[(2,3-dimethoxyphenyl)methyl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C24H23N3O4S2
assistant