You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[(3-butoxyphenyl)-hydroxymethylidene]-1-(6-methoxy-1,3-benzothiazol-2-yl)-5-pyridin-4-ylpyrrolidine-2,3-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H25N3O5S
assistant