You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(11-acetyl-4-benzyl-3,5-dioxo-8-thia-4,6,11-triazatricyclo[7.4.0.02,7]trideca-1(9),2(7)-dien-6-yl)-N-(4-ethoxyphenyl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H28N4O5S
assistant