You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3'-acetamido-1-oxo-N-(6-propan-2-yloxyhexyl)-6'-[(2,2,2-trifluoro-1-hydroxyethyl)amino]spiro[2-benzofuran-3,9'-xanthene]-5-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C34H36F3N3O7
assistant