You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2-methyl-3-oxo-4H-1,4-benzoxazin-6-yl)-2-(4-methyl-2-oxo-1,3-thiazol-3-yl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H15N3O4S
assistant