You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 2-[(2,3-dimethoxyphenyl)methylidene]-7-methyl-3-oxo-5-(3,4,5-trimethoxyphenyl)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H30N2O8S
assistant