You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 3-(furan-2-carbonyl)-2-(furan-2-yl)-4-hydroxy-1-(6-methoxy-1,3-benzothiazol-2-yl)-2H-pyrrol-5-one ?
user
C21H14N2O6S
assistant