You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 4-[6-(oxan-4-ylmethoxy)-1-benzofuran-3-yl]-4-oxo-2-[2-(4-oxo-1,2,3-benzotriazin-3-yl)ethyl]butanoic acid ?
user
C27H27N3O7
assistant