You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-chloro-6-methoxy-2-(2-pyridin-3-yloxypyrimidin-4-yl)-3H-1,2-benzothiazole 1,1-dioxide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H13ClN4O4S
assistant